NO Silicon Controlled Rectifiers (SCR) 2,400+

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Part RoHS Manufacturer Trigger Device Type Package Style (Meter) Surface Mount Terminal Position Configuration Case Connection Maximum On-state Voltage Package Body Material Maximum DC Gate Trigger Current Non Repetitive Peak On-state Current Terminal Form Package Shape Maximum On-state Current No. of Elements Maximum Leakage Current Repetitive Peak Reverse Voltage Maximum Repetitive Peak Off-state Leakage Current No. of Terminals Sub-Category Maximum Operating Temperature Minimum Operating Temperature Terminal Finish Maximum RMS On-state Current JESD-30 Code Moisture Sensitivity Level (MSL) Maximum DC Gate Trigger Voltage Qualification Repetitive Peak Off-state Voltage Minimum Critical Rate of Rise of Off-state Voltage Maximum Holding Current Additional Features Nominal Circuit Commutated Turn-off Time JEDEC-95 Code JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Reference Standard

VS-181RKI100PBF

Vishay Intertechnology

SCR

POST/STUD MOUNT

NO

UPPER

SINGLE

METAL

150 mA

4000 A

HIGH CURRENT CABLE

ROUND

180 A

1

30 mA

1000 V

30000 uA

3

125 Cel

-40 Cel

285 A

O-MUPM-H3

2.5 V

1000 V

500 V/us

600 mA

100 us

TO-209AB

NOT SPECIFIED

NOT SPECIFIED

70TPS16

Vishay Intertechnology

SCR

IN-LINE

NO

SINGLE

SINGLE

PLASTIC/EPOXY

100 mA

1400 A

THROUGH-HOLE

RECTANGULAR

70 A

1

15 mA

1600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

75 A

R-PSIP-T3

1

4 V

Not Qualified

1600 V

500 V/us

200 mA

TO-274AA

B614F-2T

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE

ISOLATED

UNSPECIFIED

80 mA

650 A

SOLDER LUG

RECTANGULAR

46 A

2

1200 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

COPPER

R-XUFM-D6

3 V

Not Qualified

500 V/us

200 mA

UL RECOGNIZED

B614FSE-2T

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE

ISOLATED

UNSPECIFIED

80 mA

650 A

SOLDER LUG

RECTANGULAR

46 A

2

1200 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

COPPER

R-XUFM-D6

3 V

Not Qualified

500 V/us

200 mA

UL RECOGNIZED

BT151-650R

NXP Semiconductors

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

7.5 A

1

.5 mA

650 V

500 uA

3

Silicon Controlled Rectifiers

125 Cel

TIN

12 A

R-PSFM-T3

1.5 V

Not Qualified

650 V

50 V/us

20 mA

HIGH RELIABILITY

70 us

TO-220AB

e3

C159PB

Harris Semiconductor

SCR

NO

150 mA

1600 A

110 A

15 mA

Silicon Controlled Rectifiers

125 Cel

-45 Cel

3 V

1200 V

200 V/us

500 mA

20 us

C159PD

Powerex

SCR

NO

300 mA

1600 A

110 A

18 mA

Silicon Controlled Rectifiers

125 Cel

-45 Cel

3 V

1400 V

200 V/us

40 us

M50-100-1-2-F-V

Sensata Technologies

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

1500 A

UNSPECIFIED

RECTANGULAR

100 A

2

10 mA

600 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN

R-XUFM-X6

3 V

Not Qualified

500 V/us

150 mA

e3

UL RECOGNIZED

M5010012FV

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

1500 A

UNSPECIFIED

RECTANGULAR

100 A

2

10 mA

600 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN

R-XUFM-X6

3 V

Not Qualified

500 V/us

150 mA

e3

UL RECOGNIZED

S8065K

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

950 A

THROUGH-HOLE

RECTANGULAR

65 A

1

2 mA

800 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

Matte Tin (Sn)

65 A

R-PSFM-T3

2

2 V

Not Qualified

800 V

250 V/us

80 mA

TO-218AC

e3

40

260

UL RECOGNIZED

SKET400/16E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SINGLE

ISOLATED

UNSPECIFIED

200 mA

14000 A

UNSPECIFIED

RECTANGULAR

400 A

1

120 mA

1600 V

80000 uA

5

Silicon Controlled Rectifiers

130 Cel

-40 Cel

TIN SILVER

700 A

R-XUFM-X5

3 V

Not Qualified

1600 V

1000 V/us

500 mA

HIGH RELIABILITY

200 us

e2

UL RECOGNIZED

SKET800/18GH4

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SINGLE

ISOLATED

UNSPECIFIED

300 mA

37000 A

UNSPECIFIED

RECTANGULAR

808 A

1

150 mA

1800 V

5

Silicon Controlled Rectifiers

130 Cel

-40 Cel

1500 A

R-XUFM-X5

3 V

Not Qualified

1800 V

2000 mA

HIGH RELIABILITY

NOT SPECIFIED

NOT SPECIFIED

SKKH92/08E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

2000 A

UNSPECIFIED

RECTANGULAR

95 A

1

20 mA

800 V

5

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN SILVER

150 A

R-XUFM-X5

Not Qualified

800 V

250 mA

HIGH RELIABILITY

e2

UL RECOGNIZED

SKKH92/18E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

2000 A

UNSPECIFIED

RECTANGULAR

95 A

1

20 mA

1800 V

5

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN SILVER

150 A

R-XUFM-X5

3 V

Not Qualified

1800 V

250 mA

HIGH RELIABILITY

e2

UL RECOGNIZED

SKKT323/16E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

9500 A

UNSPECIFIED

RECTANGULAR

320 A

2

100 mA

1600 V

7

Silicon Controlled Rectifiers

130 Cel

-40 Cel

520 A

R-XUFM-X7

2 V

Not Qualified

1600 V

500 mA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

SKKT92/16E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

2000 A

UNSPECIFIED

RECTANGULAR

95 A

2

20 mA

1600 V

20000 uA

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN/SILVER

150 A

R-XUFM-X7

3 V

Not Qualified

1600 V

1000 V/us

250 mA

HIGH RELIABILITY

100 us

TO-240AA

e3/e4

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

SKT10/08D

Semikron International

SCR

POST/STUD MOUNT

NO

UPPER

SINGLE

ISOLATED

METAL

100 mA

250 A

SOLDER LUG

ROUND

10 A

1

4 mA

800 V

4000 uA

2

Silicon Controlled Rectifiers

130 Cel

-40 Cel

TIN SILVER

30 A

O-MUPM-D2

3 V

Not Qualified

800 V

500 V/us

150 mA

80 us

TO-208AB

e2

SKT100/08D

Semikron International

SCR

POST/STUD MOUNT

NO

UPPER

SINGLE

1.75 V

METAL

150 mA

2000 A

HIGH CURRENT CABLE

ROUND

100 A

1

30 mA

800 V

3

Silicon Controlled Rectifiers

130 Cel

-40 Cel

TIN SILVER

175 A

O-MUPM-H3

3 V

Not Qualified

800 V

500 V/us

250 mA

TO-209

e2

SKT100/08DUNF

Semikron International

SCR

POST/STUD MOUNT

NO

UPPER

SINGLE

1.75 V

METAL

150 mA

2000 A

HIGH CURRENT CABLE

ROUND

100 A

1

30 mA

800 V

3

Silicon Controlled Rectifiers

130 Cel

-40 Cel

TIN SILVER

175 A

O-MUPM-H3

3 V

Not Qualified

800 V

500 V/us

250 mA

TO-209

e2

TD120N16SOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

100 mA

UNSPECIFIED

RECTANGULAR

1

1600 V

5

125 Cel

-40 Cel

190 A

R-XUFM-X5

1600 V

NOT SPECIFIED

NOT SPECIFIED

IEC-60747-6; UL RECOGNIZED

TD240N18SOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

1.52 V

UNSPECIFIED

145 mA

5200 A

UNSPECIFIED

RECTANGULAR

240 A

1

30 mA

1800 V

5

140 Cel

275 A

R-XUFM-X5

2.5 V

1800 V

1000 V/us

200 mA

370 us

NOT SPECIFIED

NOT SPECIFIED

IEC-61140, IEC-747-6, UL RECOGNIZED

TD240N32KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

1

3200 V

5

125 Cel

-40 Cel

700 A

R-XXFM-X5

3200 V

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT162N14KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

260 A

R-XUFM-X7

1400 V

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

VS-40TPS16PBF

Vishay Intertechnology

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

PLASTIC/EPOXY

150 mA

600 A

THROUGH-HOLE

RECTANGULAR

35 A

1

10 mA

1600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

55 A

R-PSFM-T3

4 V

1600 V

1000 V/us

150 mA

TO-247AC

e3

X0405MF1AA2

STMicroelectronics

SCR

IN-LINE

NO

SINGLE

SINGLE

PLASTIC/EPOXY

.05 mA

33 A

THROUGH-HOLE

RECTANGULAR

.9 A

1

1 mA

600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN

1.35 A

R-PSIP-T3

.8 V

Not Qualified

600 V

15 V/us

5 mA

SENSITIVE GATE

e3

2N5060G

Onsemi

SCR

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

.2 mA

10 A

THROUGH-HOLE

ROUND

.51 A

1

30 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

TIN SILVER COPPER

.8 A

O-PBCY-T3

1.2 V

Not Qualified

30 V

10 mA

SENSITIVE GATE

10 us

TO-92

e1

260

2N5062G

Onsemi

SCR

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

.2 mA

10 A

THROUGH-HOLE

ROUND

.51 A

1

.05 mA

100 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

TIN SILVER COPPER

.8 A

O-PBCY-T3

1.2 V

Not Qualified

100 V

10 mA

30 us

TO-92

e1

260

B512F-2

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

60 mA

325 A

SOLDER LUG

RECTANGULAR

27 A

2

600 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

COPPER

R-XUFM-D6

2.5 V

Not Qualified

500 V/us

200 mA

UL RECOGNIZED

B514FSE-2T

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

60 mA

325 A

SOLDER LUG

RECTANGULAR

27 A

2

1200 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

COPPER

R-XUFM-D6

2.5 V

Not Qualified

500 V/us

200 mA

UL RECOGNIZED

CS30-12IO1

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

PLASTIC/EPOXY

65 mA

330 A

THROUGH-HOLE

RECTANGULAR

31 A

1

5 mA

1200 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

49 A

R-PSFM-T3

2.5 V

Not Qualified

1200 V

1000 V/us

100 mA

TO-247AD

NOT SPECIFIED

NOT SPECIFIED

CS30-16IO1

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

PLASTIC/EPOXY

65 mA

330 A

THROUGH-HOLE

RECTANGULAR

31 A

1

5 mA

1600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

49 A

R-PSFM-T3

2.5 V

Not Qualified

1600 V

1000 V/us

100 mA

TO-247AD

NOT SPECIFIED

NOT SPECIFIED

EC103D1

NXP Semiconductors

SCR

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

.012 mA

9 A

THROUGH-HOLE

ROUND

.5 A

1

.1 mA

400 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN

.8 A

O-PBCY-T3

.8 V

Not Qualified

400 V

5 mA

100 us

TO-92

e3

30

260

F1857HD1200

Crydom

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

1500 A

UNSPECIFIED

RECTANGULAR

55 A

1

1200 V

5

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN/SILVER

86.35 A

R-XUFM-X5

3 V

Not Qualified

500 V/us

300 mA

e3/e4

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

L514F

Crydom

SCR

FLANGE MOUNT

NO

UPPER

BRIDGE, HALF-CONTROLLED, COMMON CATHODE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

60 mA

225 A

UNSPECIFIED

RECTANGULAR

25 A

2

1200 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

COPPER

R-XUFM-X6

2.5 V

Not Qualified

500 V/us

UL RECOGNIZED

MCC95-16IO1B

Littelfuse

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

2400 A

UNSPECIFIED

RECTANGULAR

116 A

2

15 mA

1600 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

180 A

R-XUFM-X7

1.5 V

Not Qualified

1600 V

200 mA

TO-240AA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

MCD40-12IO6

Littelfuse

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN SERIES DIODE

ISOLATED

PLASTIC/EPOXY

100 mA

500 A

UNSPECIFIED

RECTANGULAR

38 A

1

5 mA

1200 V

4

Silicon Controlled Rectifiers

125 Cel

-40 Cel

NICKEL

60 A

R-PUFM-X4

1.5 V

Not Qualified

1200 V

200 mA

MCO150-16IO1

Littelfuse

SCR

FLANGE MOUNT

NO

UPPER

SINGLE

ISOLATED

PLASTIC/EPOXY

150 mA

UNSPECIFIED

RECTANGULAR

1

1600 V

4

150 Cel

-40 Cel

NICKEL

234 A

R-PUFM-X4

Not Qualified

1600 V

MMO62-16IO6

Littelfuse

SCR

FLANGE MOUNT

NO

UPPER

ANTI-PARALLEL, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

100 mA

450 A

UNSPECIFIED

RECTANGULAR

25 A

2

5 mA

1600 V

4

Silicon Controlled Rectifiers

125 Cel

-40 Cel

Silver (Ag)

39 A

R-PUFM-X4

1 V

Not Qualified

1600 V

100 mA

e4

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

S0308R

Loras Industries

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

8 A

1

.2 mA

10 uA

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN LEAD

8 A

R-PSFM-T3

1.5 V

Not Qualified

30 V

125 V/us

30 mA

TO-220AB

e0

S4065KTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

950 A

THROUGH-HOLE

RECTANGULAR

41 A

1

3 mA

400 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

65 A

R-PSFM-T3

2 V

Not Qualified

400 V

550 V/us

80 mA

TO-218AC

e3

40

260

UL RECOGNIZED

S8010L

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

10 A

1

1 mA

800 V

3

Silicon Controlled Rectifiers

100 Cel

-40 Cel

Matte Tin (Sn)

10 A

R-PSFM-T3

2

1.5 V

Not Qualified

800 V

20 V/us

20 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S8010LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

6.4 A

1

.5 mA

800 V

3

Silicon Controlled Rectifiers

100 Cel

-40 Cel

MATTE TIN

10 A

R-PSFM-T3

1.5 V

Not Qualified

800 V

200 V/us

30 mA

TO-220AB

e3

40

260

UL RECOGNIZED

SKKT106/08E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

1900 A

UNSPECIFIED

RECTANGULAR

106 A

2

20 mA

800 V

7

Silicon Controlled Rectifiers

130 Cel

-40 Cel

TIN SILVER

180 A

R-XUFM-X7

3 V

Not Qualified

800 V

250 mA

HIGH RELIABILITY

e2

UL RECOGNIZED

SKKT27/16E

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

470 A

UNSPECIFIED

RECTANGULAR

25 A

2

10 mA

1600 V

10000 uA

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN SILVER

50 A

R-XUFM-X7

3 V

Not Qualified

1600 V

1000 V/us

200 mA

HIGH RELIABILITY

80 us

TO-240AA

e2

UL RECOGNIZED

STT1900N16P55XPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

ANTI-PARALLEL, 2 ELEMENTS

1.32 V

UNSPECIFIED

200 mA

17000 A

UNSPECIFIED

RECTANGULAR

2

130 mA

1600 V

4

125 Cel

-40 Cel

R-XUFM-X4

2 V

1600 V

1000 V/us

300 mA

250 us

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6

TYN1012TRG

STMicroelectronics

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

PLASTIC/EPOXY

.2 mA

146 A

THROUGH-HOLE

RECTANGULAR

8 A

1

2 mA

1000 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

12 A

R-PSFM-T3

1.3 V

Not Qualified

1000 V

40 V/us

15 mA

TO-220AB

e3

VS-16TTS12-M3

Vishay Intertechnology

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

PLASTIC/EPOXY

60 mA

200 A

THROUGH-HOLE

RECTANGULAR

10 A

1

10 mA

1200 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

16 A

R-PSFM-T3

3 V

1200 V

500 V/us

100 mA

110 us

TO-220AB

e3

VS-30TPS08-M3

Vishay Intertechnology

SCR

NO

60 mA

300 A

20 A

10 mA

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN COPPER

2.5 V

800 V

500 V/us

100 mA

110 us

e2

Silicon Controlled Rectifiers (SCR)

Silicon Controlled Rectifiers (SCRs) are semiconductor devices that are used to control the flow of electrical current in high-power applications. They are also known as thyristors, which are a family of devices that includes SCRs, triacs, and diacs.

SCRs consist of four layers of alternating p-type and n-type semiconductor material, forming three p-n junctions. The device has three terminals: the anode (A), the cathode (K), and the gate (G). The SCR is designed to conduct current only in one direction, from the anode to the cathode.

SCRs work by applying a positive voltage to the anode, which causes current to flow into the device. The gate terminal is used to control the flow of current by applying a small voltage pulse to trigger the device. Once triggered, the SCR conducts current until the voltage across the device drops below a certain level, at which point it turns off.

SCRs are commonly used in high-power applications such as motor control, lighting control, and power supplies. They are often used in conjunction with other components such as capacitors, inductors, and diodes to form complete electronic circuits.

Proper selection and use of SCRs are critical to ensure safe and reliable operation of power control circuits. Factors such as the maximum voltage rating, maximum current rating, and operating temperature range should be considered when selecting an SCR for a particular application.