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How to read the codes representing graphics in the PCB component library in protel99se

Electrical graphics symbols and packaging forms of protel99 commonly used components:

1. Standard resistors: RES1, RES2; packaging: AXIAL-0.3 to AXIAL-1.0

Two-port variable resistor: RES3, RES4; Package: AXIAL-0.3 to AXIAL-1.0

Three-port variable resistor: RESISTOR TAPPED, POT1, POT2; Package: VR1-VR5

2. Capacitor: CAP (non-polar capacitor), ELECTRO1 or ELECTRO2 (polar capacitor), variable capacitor CAPVAR

Package: non-polar capacitors are RAD-0.1 to RAD-0.4, polar capacitors For RB.2/.4 to RB.5/1.0.

3. Diodes: DIODE (ordinary diode), DIODE SCHOTTKY (Schottky diode), DUIDE TUNNEL (tunnel diode) DIODE VARCTOR (variant Capacitance diode) ZENER1~3 (voltage stabilizing diode)

PROTEL component packaging summary

□ emcu Published on 2006-11-28 17:10:00

Resistor AXIAL

Non-polar capacitor RAD

Electrolytic capacitor RB-

Potentiometer VR

Diode DIODE

Transistor TO

Power supply voltage stabilizing block 78 and 79 series TO-126H and TO-126V

The field effect transistor is the same as the triode

Rectifier bridge D-44 D －37 D－46

Single row multi-pin socket CON SIP

Dual in-line component DIP

Crystal oscillator XTAL1

Resistance: RES1, RES2, RES3, RES4; packaging attributes are axial series

Non-polar capacitor: cap; packaging attributes are RAD-0.1 to rad-0.4

Electrolytic capacitor: electroi; packaging attributes For rb.2/.4 to rb.5/1.0

Potentiometer: pot1, pot2; package attribute is vr-1 to vr-5

Diode: package attribute is diode -0.4 (low power) diode-0.7 (high power)

Transistor: Common packaging attributes are to-18 (ordinary triode) to-22 (high-power triode) to-3 (high-power Darin

Day tube)

The power supply voltage stabilizing blocks include 78 and 79 series; the 78 series such as 7805, 7812, 7820, etc.

The 79 series includes 7905, 7912, 7920, etc.

Common packaging attributes are to126h and to126v

Rectifier bridge: BRIDGE1, BRIDGE2: The packaging attributes are D series (D-44, D-37, D-46)

Resistor: AXIAL0.3-AXIAL0.7 Where 0.4-0.7 refers to the length of the resistor, generally AXIAL0.4

Ceramic capacitor: RAD0.1-RAD0.3. Among them, 0.1-0.3 refers to the size of the capacitor, generally RAD0.1

Electrolytic capacitor: RB.1/.2-RB.4/.8, among which .1/.2-.4/.8 refers to the capacitance. size.

Generally <100uF is used

RB.1/.2, 100uF-470uF is used RB.2/.4, >470uF is used RB.3/.6

Diode: DIODE0.4- DIODE0.7 where 0.4-0.7 refers to the length of the diode, generally DIODE0.4

Light-emitting diode: RB.1/.2

Integrated block: DIP8-DIP40, of which 8-40 It refers to the number of pins. The 8-pin one is DIP8

SMD resistor

0603 means that the package size has nothing to do with the specific resistance value

But the package size is related to Generally speaking, regarding power

0201 1/20W

0402 1/16W

0603 1/10W

0805 1/8W

1206 1/4W

The corresponding relationship between the outer dimensions of the capacitor and resistor and the package is:

0402=1.0x0.5

0603= 1.6x0.8

0805=2.0x1.2

1206=3.2x1.6

1210=3.2x2.5

1812=4.5x3.2

2225=5.6x6.5

Part packaging refers to the appearance and location of the solder joints indicated when the actual part is soldered to the circuit board. It is a pure space concept, so

Different components can be packaged with the same part, and the same type of component can also be packaged with different parts. Like resistors, there is the traditional pin-in type. This kind of component is relatively large, and the circuit board must be drilled to install the component. After drilling, insert the component and then pass it through the tin furnace

Or spray tin (can also be hand soldered), which is more expensive. Newer designs all use small surface mount components (SMD).

This type of component does not require drilling and is made of steel. Pour the semi-molten solder paste into the circuit board, then put the SMD component on it, and then solder it to the circuit board

We have said before about component packaging, except for DEVICE. In addition to the components in the LIB library, the components in other libraries already have

fixed component packages. This is because the components in this library come in many forms: take transistors as an example to illustrate:

The transistor is one of our commonly used components in DEVICE. In the LIB library, there are simply NPN and PNP, but in fact, if it is NPN's 2N3055, it may be iron-cased TO-3. If it is NPN's 2N3054, there may be TO-66 or TO-5 with iron shell, and CS9013 for academic use, there are TO-92A, TO-92B, TO-5, TO-46, TO -5

2 and so on, ever-changing.

The other one is the resistors. In the DEVICE library, they are simply called RES1 and RES2, whether it is 100Ω

or 470KΩ, it is the same for the circuit board. In other words, it has nothing to do with the ohm number. It is completely determined by the power number of the resistor. The 1/4W and even 1/2W resistors we choose can all use AXIAL0.3 components. package, and if the power number is larger

, AXIAL0.4, AXIAL0.5, etc. can be used.

The commonly used component packages are now organized as follows:

Resistance and non-polar two-terminal components AXIAL0.3-AXIAL1.0

Non-polar capacitor RAD0.1-RAD0.4

Polar capacitor RB.2/.4-RB.5/1.0

Diode DIODE0.4 and DIODE0.7

Quartz crystal oscillator XTAL1

Transistor, FET, UJT TO-xxx (TO-3, TO-5)

Variable resistor (POT1, POT2) VR1-VR5

Of course, we You can also open the C:\Client98\PCB98\library\advpcb.lib library to find the corresponding package of the parts used

It is best for you to memorize these commonly used component packages. For these component packages, you can split them into two parts.

For example, the resistor AXIAL0.3 can be Split into AXIAL and 0.3, AXIAL is translated into Chinese as axial, and 0.3 is the distance between the pads of the resistor on the printed circuit board, which is 300mil (because in the field of motors, it is Mainly in English units. Similarly, for non-polar capacitors, RAD0.1-RAD0.4 is the same; for polar capacitors such as electrolytic capacitors, the package is R

B.2/.4, RB.3/.6, etc., where ".2" is the pad spacing and ".4" is the outer diameter of the capacitor cylinder

For transistors. , then just look at its shape and power. For high-power transistors, use TO-3. For medium-power transistors

, if it is flat, use TO-220. If it is a metal shell , just use TO-66. For low-power transistors, use TO-5

, TO-46, TO-92A, etc. Anyway, its pins are long and you can just bend them.

For commonly used integrated IC circuits, there are DIPxx, which are dual in-line component packages. DIP8 is a double row, each row has 4 pins

The distance between the two rows is 300mil, the distance between pads is 100mil. SIPxx is a single-row package, etc.

It is worth noting that the packaging of transistors and variable resistors is the most troublesome. The pins of the package may not necessarily be the same. For example, for packages such as TO-92B, pin 1 is usually E (emitter), while pin 2 may be

B pole (base) may also be C (collector); similarly, pin 3 may be C or B, which one is specific

Can only be determined after getting the components . Therefore, circuit software does not dare to rigidly define pad names (pin names). Similarly, field effect transistors and MOS transistors can also be packaged in the same package as transistors, and they can be used for three pins.

Q1-B, when loading this kind of network table, the node cannot be found (does not match) in the variable resistor. A similar problem will also occur on the schematic diagram; in the schematic diagram, the pins of the variable resistor are 1, W, and 2.

The resulting network table is 1, 2, and W. In the PCB circuit board, the pads are 1, 2, and 3. When there are these two components in the circuit, the fastest way to modify the difference between PCB and SCH is to generate the network. After the table, directly in the network table, change the transistor pins to 1, 2, 3; change the variable resistor to 1, 2, 3 with the same shape as the circuit board components, that is Available

Package: DIODE0.4 and DIODE 0.7; (As mentioned above, be careful not to forget to change the port of DIODE packaging to A and K when making PCB)

4. Transistors: NPN, NPN1 and PNP, PNP1; pin packages: TO18, TO92A (ordinary triodes) TO220H (high-power triodes) TO3 (high-power Darlington tubes)

The above packages are triangular structures.

T0-226 is linear, and our commonly used pin arrangements of 9013 and 9014 are linear, so generally transistors use TO-126!

5. Effect transistor: JFETN (N-channel junction field effect transistor), JFETP (P-channel junction field effect transistor) MOSFETN (N-channel enhancement type transistor) MOSFETP (P-channel enhancement type transistor) type tube)

The pin packaging form is the same as that of the triode.

6. Inductors: INDUCTOR, INDUCTOR1, INDUCTOR2 (common inductors), INDUCTOR VAR, INDUCTOR3, INDUCTOR4 (variable inductors)

8. Commonly used names in rectifier bridge schematic diagrams It is BRIDGE1 and BRIDGE2, and the pin package form is D series, such as D-44, D-37, D-46, etc.

9. The commonly used names in the schematic diagram of single-row multi-pin sockets are CON series, from CON1 to CON60, and the pin packaging form is SIP series, from SIP-2 to SIP-20.

10. The commonly used names in dual in-line component schematic diagrams vary according to different functions. The pin package form is DIP series.

It is not as good as the 40-pin microcontroller package. DIP40.

11. The commonly used names in serial and parallel port schematic diagrams are DB series, and the pin packaging forms are DB and MD series.

12. Crystal oscillator: CRYSTAL; package: XTAL1

13. Light-emitting diode: LED; capacitor packaging can be used for packaging. (RAD0.1-0.4)

14. Luminous digital tube: DPY; as for packaging, it is recommended to make it yourself!

15. Toggle switch: SW DIP; for packaging, you need to measure the distance between the pins yourself!

16. Key switch: SW-PB: The packaging is the same as above, but you also need to make it yourself.

17. Transformers: TRANS1--TRANS5; Needless to say about packaging, right? Measure it yourself and add two screws.

Finally, let’s talk about the principle library of PROTEL 99!

Commonly used components are in protel DOS schematic Libraries.ddb

In addition, there is protel DOS schematic 4000 CMOS (4000 sequence components)

protel DOS schematic Analog digital (A/D, D/A conversion element)

protel DOS schematic Comparator (comparator, such as LM139)

protel DOS schematic intel (Intel's processor and interface Chips and the like)

protel DOS schematic Linear (some linear devices such as 555, etc.)

protel DOS schematic TTL (74 sequence components)

protel component packaging Library summary

Resistor AXIAL

Non-polar capacitor RAD

Electrolytic capacitor RB-

Potentiometer VR

Diode DIODE

Transistor TO

Power supply voltage stabilizing block 78 and 79 series TO-126H and TO-126V

Field effect transistors are the same as transistors

Rectifier bridge D-44 D-37 D-46

Single row multi-pin socket CON SIP

Dual in-line component DIP

Crystal oscillator XTAL1

Resistors: RES1, RES2, RES3, RES4; package attributes are axial series

Non-polar capacitor: cap; package attributes are RAD-0.1 to rad-0.4

Electrolytic capacitor: electroi; package attributes are rb.2/.4 to rb.5/1.0

Potentiometer: pot1, pot2; package attributes are vr-1 to vr-5

Diode: The packaging attributes are diode-0.4 (low power) diode-0.7 (high power)

Transistor: The common packaging attributes are to-18 (ordinary triode) to-22 (high-power triode) ) to-3 (high-power Darling

Tube)

Power supply voltage stabilizing blocks include 78 and 79 series; 78 series such as 7805, 7812, 7820, etc.

79 series includes 7905, 7912, 7920, etc.

Common packaging attributes are to126h and to126v

Rectifier bridge: BRIDGE1, BRIDGE2: The packaging attributes are D series (D-44, D-37, D-46)

Resistor: AXIAL0.3-AXIAL0.7 Where 0.4-0.7 refers to the length of the resistor, generally AXIAL0.4

Ceramic capacitor: RAD0 .1-RAD0.3.

Among them, 0.1-0.3 refers to the capacitance size. Generally, RAD0.1

diode is used: DIODE0.4-DIODE0.7. Among them, 0.4-0.7 refers to the length of the diode. Generally, DIODE0.4

is used to emit light. Diode: RB.1/.2

Integrated block: DIP8-DIP40, 8-40 refers to the number of pins, and the 8-pin one is the DIP8 chip resistor

0603 means The package size has nothing to do with the specific resistance value, but the package size is generally related to the power.

0201 1/20W

0402 1/16W

0603 1/10W

0805 1/8W

1206 1/4W

The corresponding relationship between the outer dimensions of the capacitor and the resistor and the package is:

0402=1.0 x0.5

0603=1.6x0.8

0805=2.0x1.2

1206=3.2x1.6

1210 =3.2x2.5

1812=4.5x3.2

2225=5.6x6.5

We have said before about component packaging, except for DEVICE. Except for the components in the LIB library, the components in other libraries already have fixed component packages. This is because the components in this library come in many forms: take the transistor as an example:

The transistor is One of our commonly used components is in DEVICE. In the LIB library, there are simply NPN and PNP, but in fact, if it is NPN's 2N3055, it may be TO-3 of iron shell. If it is NPN's 2N3054, it may be iron. The shell is TO-66 or TO-5, and the CS9013 used in school has TO-92A, TO-92B, TO-5, TO-46, TO-52, etc., and they are ever-changing.

The other one is the resistor. In the DEVICE library, it is simply called RES1 and RES2. It is the same whether it is 100Ω or 470KΩ. For the circuit board, it has nothing to do with the ohm number. It is irrelevant. It is entirely determined by the power number of the resistor. The 1/4W and even 1/2W resistors we choose can be packaged with AXIAL0.3 components. If the power number is larger, AXIAL0.4 and AXIAL0 can be used. .5 and so on.

The commonly used component packages are now organized as follows:

Resistance and non-polar two-terminal components AXIAL0.3-AXIAL1.0

Non-polar capacitor RAD0.1-RAD0.4

Polar capacitor RB.2/.4-RB.5/1.0

Diode DIODE0.4 and DIODE0.7

Quartz crystal oscillator XTAL1

Transistor, FET, UJT TO-xxx (TO-3, TO-5)

Variable resistor (POT1, POT2) VR1-VR5

Component code package Remarks

Resistor R　　　AXIAL0.3

Resistor R　　　AXIAL0.4

Resistor R　　　AXIAL0.5

Resistor R　　　AXIAL0.6

Resistance R >

Capacitor C　　　　RAD0.1　　　　 RAD0.1 RAD0.1 RAD0.1 RAD0.2 RAD0.2 RAD0.2 RAD0.3 RAD0.3 RAD0.3 C　　　RAD0.4　　　 Square capacitor

Capacitor C　　　 RB.2/.4　　 Electrolytic capacitor

Capacitor C　　　 RB.3/.6　　　 Electrolytic capacitor

Capacitor C RB.4/8 >

Diode D DIODE0.7 IN5408

T0-126　3DD6

Transistor Q TO-220 >Potentiometer VR VR4

Potentiometer VR VR5

Component code sealing notes

Socket CON2 SIP2 2 pins

Socket CON3 SIP3 3

Socket CON4 SIP4 4

Socket CON5 SIP5 5

Socket CON6 SIP6 6

Socket CON16 SIP16 16

Socket CON20 SIP20 20

Rectifier bridge stack D D-37R 1A right angle package

Rectifier bridge stack D

D-38 3A four-pin package

Rectifier bridge stack D D-44 3A linear package

Rectifier bridge stack D D-46 10A four-pin package

Integrated Circuit U DIP8(S) SMD package

Integrated circuit U DIP16(S) SMD package

Integrated circuit U DIP8(S) SMD package

Integrated circuit U DIP20 (D) SMD package

Integrated circuit U DIP4 dual in-line

Integrated circuit U DIP6 dual in-line

Integrated circuit U DIP8 dual in-line type

Integrated circuit U DIP16 dual in-line type

Integrated circuit U DIP20 dual in-line type

Integrated circuit U ZIP-15H TDA7294

Integrated circuit U ZIP-11H

Component package resistor AXIAL

Non-polar capacitor RAD

Electrolytic capacitor RB-

Potentiometer VR

Diode DIODE

Transistor TO

Power supply voltage stabilizing block 78 and 79 series TO-126H Same as TO-126V

FET and transistor

Rectifier bridge D-44 D-37 D-46

Single row multi-pin socket CON SIP ( Search con to find any socket)

Dual in-line component DIP

Crystal oscillator XTAL1

Resistance: RES1, RES2, RES3, RES4; package attribute is axial Series

Non-polar capacitor: cap; package attributes are RAD-0.1 to rad-0.4

Electrolytic capacitor: electroi; package attributes are rb.2/.4 to rb.5/ 1.0

Potentiometer: pot1, pot2; package attributes are vr-1 to vr-5

Diode: package attributes are diode-0.4 (low power) diode-0.7 (high power )

Transistor: Common packaging attributes are to-18 (ordinary triode) to-22 (high-power triode) to-3 (high-power Darlington tube)

The power supply voltage stabilizing blocks include 78 and 79 series; the 78 series includes 7805, 7812, 7820, etc.; the 79 series includes 7905, 7912, 7920, etc. Common package properties include to126h and to126v

Rectifier bridge: BRIDGE1, BRIDGE2: Package attributes are D series (D-44, D-37, D-46)

Resistance: AXIAL0.3-AXIAL0.7　Among them 0.4-0.7 refers to the length of the resistor, generally AXIAL0.4

Ceramic capacitor: RAD0.1-RAD0.3. Among them, 0.1-0.3 refers to the size of the capacitor, generally RAD0.1

Electrolytic capacitor: RB.1/.2-RB.4/.8, among which .1/.2-.4/.8 refers to the capacitance. size.

Generally <100uF is used

RB.1/.2, 100uF-470uF is used RB.2/.4, >470uF is used RB.3/.6

Diode: DIODE0.4- DIODE0.7 where 0.4-0.7 refers to the length of the diode, generally DIODE0.4

Light-emitting diode: RB.1/.2

Integrated block: DIP8-DIP40, of which 8-40 It refers to the number of pins. The 8-pin one is DIP8

SMD resistor

0603 means that the package size has nothing to do with the specific resistance value

But the package size is related to Generally speaking, regarding power

0201 1/20W

0402 1/16W

0603 1/10W

0805 1/8W

1206 1/4W

The corresponding relationship between the outer dimensions of the capacitor and resistor and the package is:

0402=1.0x0.5

0603= 1.6x0.8

0805=2.0x1.2

1206=3.2x1.6

1210=3.2x2.5

1812=4.5x3.2

2225=5.6x6.5

Part packaging refers to the appearance and location of the solder joints indicated when the actual part is soldered to the circuit board. It is a pure space concept, so

Or spray tin (can also be hand soldered), which is more expensive. Newer designs all use small surface mount components (SMD).

We have said before about component packaging, except for DEVICE. In addition to the components in the LIB library, the components in other libraries already have

fixed component packages. This is because the components in this library come in many forms: take transistors as an example to illustrate:

2 and so on, ever-changing.

The other one is the resistors. In the DEVICE library, they are simply called RES1 and RES2, whether it is 100Ω

, AXIAL0.4, AXIAL0.5, etc. can be used.

The commonly used component packages are now organized as follows:

Resistance and non-polar two-terminal components AXIAL0.3-AXIAL1.0

Non-polar capacitor RAD0.1-RAD0.4

Polar capacitor RB.2/.4-RB.5/1.0

Diode DIODE0.4 and DIODE0.7

Quartz crystal oscillator XTAL1

Transistor, FET, UJT TO-xxx (TO-3, TO-5)

Variable resistor (POT1, POT2) VR1-VR5

Of course, we You can also open the C:Client98PCB98libraryadvpcb.lib library to find the corresponding package of the parts used

It is best for you to memorize these commonly used component packages. For these component packages, you can split them into two parts.

For example, the resistor AXIAL0.3 can be remembered. Split into AXIAL and 0.3, AXIAL is translated into Chinese as axial, and 0.3 is the distance between the pads of the resistor on the printed circuit board, which is 300mil (because in the field of motors, it is Mainly in English units. Similarly, for non-polar capacitors, RAD0.1-RAD0.4 is the same; for polar capacitors such as electrolytic capacitors, the package is R

B.2/.4, RB.3/.6, etc., where ".2" is the pad spacing and ".4" is the outer diameter of the capacitor cylinder

For transistors. , then just look at its shape and power. For high-power transistors, use TO-3. For medium-power transistors

, if it is flat, use TO-220. If it is a metal shell , just use TO-66. For low-power transistors, use TO-5

, TO-46, TO-92A, etc. Anyway, its pins are long and you can just bend them.

For commonly used integrated IC circuits, there are DIPxx, which is a dual in-line component package, and DIP8, which is a double row, each row has 4 pins

The distance between the two rows is 300mil, the distance between pads is 100mil. SIPxx is a single-row package, etc.

B pole (base) may also be C (collector); similarly, pin 3 may be C or B, which one is specific

Can only be determined after getting the component . Therefore, circuit software does not dare to rigidly define pad names (pin names). Similarly, field effect transistors and MOS transistors can also be packaged in the same package as transistors, and they can be used for three pins.

The generated network table is 1, 2, and W. In the PCB circuit board, the pads are 1, 2, and 3. When there are these two components in the circuit, the fastest way to modify the difference between PCB and SCH is to generate the network. After the table, directly in the network table, change the transistor pins to 1, 2, 3; change the variable resistor to 1, 2, 3 with the same shape as the circuit board components, that is Can.

Chinese and English

1. Resistor

Fixed resistance: RES

Semiconductor resistance: RESSEMT

Potential Meter; POT

Variable resistance; RVAR

Adjustable resistance; res1.....

2. Capacitor

Fixed value Non-polar capacitor; CAP

Fixed value polar capacitor; CAP

Semiconductor capacitor: CAPSEMI

Adjustable capacitor: CAPVAR

3. Inductor: INDUCTOR

4. Diode: DIODE.LIB

Light-emitting diode: LED

5. Transistor: NPN1

6 .Junction field effect transistor: JFET.lib

7.MOS field effect transistor

8.MES field effect transistor

9. Relay: PELAY. LIB

10. Light bulb: LAMP

11. Operational amplifier: OPAMP

12. Digital tube: DPY_7-SEG_DP (MISCELLANEOUS DEVICES.LIB)

13. Switch;sw_pb

Commonly used library files for schematic diagrams: Miscellaneous Devices.ddb, Dallas Microprocessor.ddb, Intel

Databooks.ddb, Protel DOS Schematic Libraries.ddb

Commonly used libraries for PCB components: Advpcb.ddb, General IC.ddb, Miscellaneous.ddb

Some discrete component library component names and Chinese and English comparisons

AND -- ----------------------------------AND gate

ANTENNA ------ --------------------------Antenna

BATTERY --------------- ------------------DC power supply

BELL ---------------------------- ------------Bell, bell

BVC -------------------------- ----------Coaxial cable connector

BRIDEG 1 --------------------------- ----Rectifier bridge (diode)

BRIDEG 2 ----------------------------------Rectifier Bridge (integrated block)

BUFFER--------------------------------- Buffer

BUZZER----------------------------------Buzzer

CAP ------------------------------------Capacitor

CAPACITOR ---- --------------------------Capacitor

CAPACITOR POL -------------- ------------Polar capacitor

CAPVAR -------------------------- -------Adjustable capacitor

CIRCUIT BREAKER ---------------Fusible wire

COAX ----------------------------------Coaxial cable

CON - --------------------------

---------------Socket

CRYSTAL ---------------------------- -----Crystal rectifier

DB ---------------------------------- -----Parallel socket

DIODE ----------------------------------Diode

DIODE SCHOTTKY --------------------------Vault diode

DIODE VARACTOR ------ ------------------Varactor diode

DPY_3-SEG------------------ ---------- 3-segment LED

DPY_7-SEG--------------------------- 7-segment LED

DPY_7-SEG_DP --------------------------7-segment LED (with decimal point)

ELECTRO -------------------------------Electrolytic Capacitor

FUSE ------- --------------------------Fuse

INDUCTOR------------- ----------------INDUCTOR

INDUCTOR IRON ------------------------ -Inductor with iron core

INDUCTOR3 --------------------------Adjustable inductor

JFET N -------------------------------N-channel field effect transistor

JFET P - ----------------------------------P-channel field effect transistor

LAMP ------ ----------------------------Light bulb

LAMP NEDN ---------- ------------------Starter

LED ------------------------------- -------------Light-emitting diode

METER --------------------------- ------Instrument

MICROPHONE ----------------------------Microphone

MOSFET --------------------------------MOS tube

MOTOR AC ----- --------------------------AC Motor

MOTOR SERVO --------------- ----------Servo motor

NAND -------------------------- -----NAND gate

NOR ---------------------------------- NOR gate

NOT ----------------------------------NOR gate

NPN ----------------------------------NPN----transistor

NPN-PHOTO ----------------------------------Photosensitive transistor

OPAMP --- ----------------------------------

Op amp

OR ------------------------------------OR gate

PHOTO ----------------------------------Photosensitive diode

PNP - ----------------------------------Transistor

NPN DAR ------ -----------------------NPN transistor

PNP DAR --------------- ----------PNP transistor

POT ----------------------------Sliding Line Rheostat

PELAY-DPDT--------------------------- Double Pole Double Throw Relay

RES1.2 ----------------------------Resistor

RES3.4 ------ -----------------------Variable resistor

RESISTOR BRIDGE? --------------- -------------Bridge resistor

RESPACK ? --------------------------- ---Resistor

SCR ----------------------------Thyristor

PLUG? ---------------------------- Plug

PLUG AC FEMALE---------- ------------------ Three-phase AC plug

SOCKET? ------------------- --------Socket

SOURCE CURRENT-------------------------- Current source

SOURCE VOLTAGE -------------------------------Voltage source

SPEAKER ----- -----------------------Speaker

SW ? --------------- ----------Switch

SW-DPDY ?-------------------------- - Double pole double throw switch

SW-SPST ? ----------------------------Single pole single throw switch

SW-PB ----------------------------Button

THERMISTOR ---- --------------------------Thermistor

TRANS1 --------------- -------------Transformer

TRANS2 ---------------------------- Adjustable transformer

TRIAC?---------------------------- Three-terminal triac

TRIODE ? ----------------------------Triode vacuum tube

VARISTOR ------ -----------------------Rheostats

ZENER? ------------------ ----------Zener diode

DPY_7-SEG_D-------------------------- - Digital tube

SW-PB ---

------------------------ Switch

7805---------------- ------------------LM7805CT

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