ISOLATED Silicon Controlled Rectifiers (SCR) 290

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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

S6008LS3TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.5 mA

100 A

THROUGH-HOLE

RECTANGULAR

5.1 A

1

.25 mA

600 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

Matte Tin (Sn)

8 A

R-PSFM-T3

.8 V

600 V

8 mA

TO-220AB

e3

40

260

UL RECOGNIZED

SK008LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

5.1 A

1

3 mA

1000 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

Matte Tin (Sn)

8 A

R-PSFM-T3

1.5 V

1000 V

100 V/us

30 mA

TO-220AB

e3

40

260

UL RECOGNIZED

TTB6C165N16LOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

3 PHASE BRIDGE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

6

1600 V

14

120 A

R-XUFM-X14

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

TTW3C85N16LOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

3 BANKS, ANTI-PARALLEL, 2 ELEMENTS WITH BUILT-IN THERMISTOR

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

6

1600 V

14

75 A

R-XUFM-X14

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

TTW3C115N16LOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

3 BANKS, ANTI-PARALLEL, 2 ELEMENTS WITH BUILT-IN THERMISTOR

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

6

1600 V

14

100 A

R-XUFM-X14

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

TTB6C135N16LOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

3 PHASE BRIDGE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

6

1600 V

14

100 A

R-XUFM-X14

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

TT570N16KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

2

1600 V

7

900 A

R-XXFM-X7

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

VS-VSKT500-16PBF

Vishay Intertechnology

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

200 mA

18700 A

UNSPECIFIED

RECTANGULAR

500 A

2

100 mA

1600 V

100000 uA

7

130 Cel

-40 Cel

785 A

R-PUFM-X7

3 V

1600 V

1000 V/us

500 mA

200 us

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

BTW67-200

STMicroelectronics

SCR

FLANGE MOUNT

NO

UPPER

SINGLE

ISOLATED

METAL

80 mA

350 A

SOLDER LUG

ROUND

25 A

1

6 mA

200 V

20 uA

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

40 A

O-MUFM-D3

1.5 V

Not Qualified

200 V

500 V/us

150 mA

100 us

UL RECOGNIZED

BTW67-600

STMicroelectronics

SCR

FLANGE MOUNT

NO

UPPER

SINGLE

ISOLATED

PLASTIC/EPOXY

80 mA

350 A

SOLDER LUG

ROUND

25 A

1

6 mA

600 V

20 uA

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

NICKEL

50 A

O-PUFM-D3

1.5 V

Not Qualified

600 V

500 V/us

150 mA

100 us

UL RECOGNIZED

BTW68-1000RG

STMicroelectronics

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

420 A

THROUGH-HOLE

RECTANGULAR

16 A

1

3 mA

1000 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

30 A

R-PSFM-T3

1

3 V

Not Qualified

1000 V

500 V/us

75 mA

100 us

UL RECOGNIZED

BTW68-1200RG

STMicroelectronics

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

420 A

THROUGH-HOLE

RECTANGULAR

25 A

1

3 mA

1200 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

30 A

R-PSFM-T3

3 V

Not Qualified

1200 V

500 V/us

75 mA

100 us

e3

UL RECOGNIZED

BTW68-600RG

STMicroelectronics

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

420 A

THROUGH-HOLE

RECTANGULAR

16 A

1

3 mA

600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

30 A

R-PSFM-T3

1

3 V

Not Qualified

600 V

500 V/us

75 mA

100 us

UL RECOGNIZED

VS-VSKT91/14

Vishay Intertechnology

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.73 V

PLASTIC/EPOXY

150 mA

2094 A

UNSPECIFIED

RECTANGULAR

95 A

2

1400 V

15000 uA

7

125 Cel

-40 Cel

210 A

R-PUFM-X7

2.5 V

1400 V

1000 V/us

250 mA

TO-240AA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

MCC250-16IO1

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

9600 A

UNSPECIFIED

RECTANGULAR

450 A

2

40 mA

1600 V

7

Silicon Controlled Rectifiers

140 Cel

-40 Cel

450 A

R-XUFM-X7

3 V

Not Qualified

1600 V

150 mA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

MCC250-18IO1

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

9600 A

UNSPECIFIED

RECTANGULAR

450 A

2

40 mA

1800 V

7

Silicon Controlled Rectifiers

140 Cel

-40 Cel

450 A

R-XUFM-X7

3 V

Not Qualified

1800 V

150 mA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

MMO36-16IO1

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

ANTI-PARALLEL, 2 ELEMENTS

ISOLATED

UNSPECIFIED

65 mA

390 A

THROUGH-HOLE

RECTANGULAR

18 A

2

5 mA

1600 V

4

Silicon Controlled Rectifiers

125 Cel

-40 Cel

SILVER

28 A

R-XUFM-T4

1 V

Not Qualified

1600 V

100 mA

e4

SK120KQ16

Semikron International

SCR

FLANGE MOUNT

NO

UPPER

ANTI-PARALLEL, 2 ELEMENTS

ISOLATED

UNSPECIFIED

100 mA

1800 A

UNSPECIFIED

RECTANGULAR

2

20 mA

1600 V

6

Silicon Controlled Rectifiers

125 Cel

-40 Cel

TIN/SILVER

134 A

R-XUFM-X6

2 V

Not Qualified

1600 V

200 mA

e3/e4

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

VS-VSKT16216PBF

Vishay Intertechnology

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.54 V

PLASTIC/EPOXY

150 mA

5100 A

UNSPECIFIED

RECTANGULAR

.16 A

2

1600 V

50000 uA

7

125 Cel

-40 Cel

355 A

R-PUFM-X7

2.5 V

1600 V

1000 V/us

200 mA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

X00602MN5BA4

STMicroelectronics

SCR

SMALL OUTLINE

YES

DUAL

SINGLE

ISOLATED

PLASTIC/EPOXY

.2 mA

10 A

GULL WING

RECTANGULAR

.5 A

1

.1 mA

600 V

4

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

.8 A

R-PDSO-G4

1

.8 V

Not Qualified

600 V

25 V/us

5 mA

e3

S8015LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

30 mA

225 A

THROUGH-HOLE

RECTANGULAR

1

800 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

15 A

R-PSFM-T3

1.5 V

Not Qualified

800 V

300 V/us

40 mA

TO-220AB

e3

40

260

UL RECOGNIZED

SK020LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

30 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

1000 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

20 A

R-PSFM-T3

1.5 V

Not Qualified

1000 V

200 V/us

40 mA

TO-220AB

e3

40

260

UL RECOGNIZED

VCD105-08IO7

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

1

800 V

10

125 Cel

-40 Cel

180 A

R-XUFM-X10

Not Qualified

800 V

NOT SPECIFIED

NOT SPECIFIED

VCD105-12IO7

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

1

1200 V

10

125 Cel

-40 Cel

180 A

R-XUFM-X10

Not Qualified

1200 V

NOT SPECIFIED

NOT SPECIFIED

VCD105-14IO7

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

1

1400 V

10

125 Cel

-40 Cel

180 A

R-XUFM-X10

Not Qualified

1400 V

NOT SPECIFIED

NOT SPECIFIED

VCD105-16IO7

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

1

1600 V

10

125 Cel

-40 Cel

180 A

R-XUFM-X10

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

VCD105-18IO7

IXYS Corporation

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

1

1800 V

10

125 Cel

-40 Cel

180 A

R-XUFM-X10

Not Qualified

1800 V

NOT SPECIFIED

NOT SPECIFIED

MCR22-6RLRPG

Onsemi

SCR

CYLINDRICAL

NO

BOTTOM

SINGLE

ISOLATED

PLASTIC/EPOXY

.2 mA

15 A

THROUGH-HOLE

ROUND

1.5 A

1

.2 mA

400 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

TIN SILVER COPPER

1.5 A

O-PBCY-T3

.8 V

Not Qualified

400 V

25 V/us

5 mA

40 us

TO-92

e1

260

S4006LS3TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.5 mA

THROUGH-HOLE

RECTANGULAR

6 A

1

.25 mA

400 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

MATTE TIN

6 A

R-PSFM-T3

.8 V

Not Qualified

400 V

8 V/us

8 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S4010LS3TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.5 mA

100 A

THROUGH-HOLE

RECTANGULAR

6.4 A

1

.25 mA

400 V

3

Silicon Controlled Rectifiers

100 Cel

-40 Cel

MATTE TIN

10 A

R-PSFM-T3

.8 V

Not Qualified

400 V

250 V/us

8 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S4035J81TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

SOLDER LUG

RECTANGULAR

1

400 V

3

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-D3

Not Qualified

400 V

TO-218

e3

UL RECOGNIZED

S4035JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

SOLDER LUG

RECTANGULAR

1

400 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-D3

1.5 V

Not Qualified

400 V

350 V/us

50 mA

TO-218

e3

40

260

UL RECOGNIZED

S4035KTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

THROUGH-HOLE

RECTANGULAR

1

400 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-T3

1.5 V

Not Qualified

400 V

350 V/us

50 mA

TO-218AC

e3

40

260

UL RECOGNIZED

S4065JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

950 A

SOLDER LUG

RECTANGULAR

41 A

1

3 mA

400 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

65 A

R-PSFM-D3

2 V

Not Qualified

400 V

550 V/us

80 mA

TO-218

e3

40

260

UL RECOGNIZED

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

S6006LS2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.2 mA

THROUGH-HOLE

RECTANGULAR

6 A

1

.25 mA

600 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

MATTE TIN

6 A

R-PSFM-T3

.8 V

Not Qualified

600 V

8 V/us

6 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S6006LS3TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.5 mA

THROUGH-HOLE

RECTANGULAR

6 A

1

.25 mA

600 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

Matte Tin (Sn)

6 A

R-PSFM-T3

.8 V

Not Qualified

600 V

8 V/us

8 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S6006LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

THROUGH-HOLE

RECTANGULAR

6 A

1

.5 mA

600 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

Matte Tin (Sn)

6 A

R-PSFM-T3

1.5 V

Not Qualified

600 V

225 V/us

30 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S6010LS3TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

.5 mA

100 A

THROUGH-HOLE

RECTANGULAR

6.4 A

1

.25 mA

600 V

3

Silicon Controlled Rectifiers

100 Cel

-40 Cel

MATTE TIN

10 A

R-PSFM-T3

.8 V

Not Qualified

600 V

225 V/us

8 mA

TO-220AB

e3

40

260

UL RECOGNIZED

S6035JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

SOLDER LUG

RECTANGULAR

1

600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-D3

1.5 V

Not Qualified

600 V

325 V/us

50 mA

TO-218

e3

40

260

UL RECOGNIZED

S6065JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

950 A

SOLDER LUG

RECTANGULAR

41 A

1

3 mA

600 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

65 A

R-PSFM-D3

2 V

Not Qualified

600 V

500 V/us

80 mA

TO-218

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

S8035JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

SOLDER LUG

RECTANGULAR

1

800 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-D3

1.5 V

Not Qualified

800 V

300 V/us

50 mA

TO-218

e3

40

260

UL RECOGNIZED

S8035KTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

THROUGH-HOLE

RECTANGULAR

1

800 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-T3

1.5 V

Not Qualified

800 V

300 V/us

50 mA

TO-218AC

e3

40

260

UL RECOGNIZED

S8065JTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

50 mA

950 A

SOLDER LUG

RECTANGULAR

41 A

1

5 mA

800 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

65 A

R-PSFM-D3

2 V

Not Qualified

800 V

475 V/us

80 mA

TO-218

e3

40

260

UL RECOGNIZED

SK006LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

6 A

1

3 mA

1000 V

3

Silicon Controlled Rectifiers

110 Cel

-40 Cel

Matte Tin (Sn)

6 A

R-PSFM-T3

1.5 V

Not Qualified

1000 V

100 V/us

30 mA

TO-220AB

e3

40

260

UL RECOGNIZED

SK010LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

6.4 A

1

3 mA

1000 V

3

Silicon Controlled Rectifiers

100 Cel

-40 Cel

MATTE TIN

10 A

R-PSFM-T3

1.5 V

Not Qualified

1000 V

100 V/us

30 mA

TO-220AB

e3

40

260

UL RECOGNIZED

SK035KTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

PLASTIC/EPOXY

40 mA

500 A

THROUGH-HOLE

RECTANGULAR

1

1000 V

3

Silicon Controlled Rectifiers

125 Cel

-40 Cel

MATTE TIN

35 A

R-PSFM-T3

1.5 V

Not Qualified

1000 V

200 V/us

50 mA

TO-218AC

e3

40

260

UL RECOGNIZED

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.