FLANGE MOUNT Silicon Controlled Rectifiers (SCR) 385

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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

TD240N16SOFHPSA1

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

2

30 mA

1600 V

5

140 Cel

275 A

R-XUFM-X5

2.5 V

1600 V

1000 V/us

200 mA

370 us

NOT SPECIFIED

NOT SPECIFIED

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

TD390N16SOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SINGLE WITH BUILT-IN DIODE

ISOLATED

1.47 V

UNSPECIFIED

150 mA

9500 A

UNSPECIFIED

RECTANGULAR

380 A

2

70 mA

1600 V

5

125 Cel

-40 Cel

520 A

R-XUFM-X5

2 V

1600 V

1000 V/us

150 mA

430 us

NOT SPECIFIED

NOT SPECIFIED

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

TT240N18SOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.52 V

UNSPECIFIED

145 mA

5200 A

UNSPECIFIED

RECTANGULAR

240 A

2

30 mA

1800 V

7

140 Cel

275 A

R-XUFM-X7

2.5 V

1800 V

1000 V/us

200 mA

370 us

NOT SPECIFIED

NOT SPECIFIED

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

TT390N18SOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.47 V

UNSPECIFIED

150 mA

9500 A

UNSPECIFIED

RECTANGULAR

380 A

2

70 mA

1800 V

7

125 Cel

-40 Cel

520 A

R-XUFM-X7

2 V

1800 V

1000 V/us

150 mA

430 us

NOT SPECIFIED

NOT SPECIFIED

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

SJ6032L2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

MATTE TIN

32 A

R-PSFM-T3

1.5 V

600 V

350 V/us

50 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SJ6032R2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

MATTE TIN

32 A

R-PSFM-T3

1.5 V

600 V

350 V/us

50 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SJ6032LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

40 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

MATTE TIN

32 A

R-PSFM-T3

1.5 V

600 V

600 V/us

60 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SJ6032RTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

40 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

MATTE TIN

32 A

R-PSFM-T3

1.5 V

600 V

600 V/us

60 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SRUK208RTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

15 mA

100 A

THROUGH-HOLE

RECTANGULAR

5.1 A

1

1200 V

4000 uA

3

125 Cel

-40 Cel

Matte Tin (Sn)

8 A

R-PSFM-T3

1.5 V

1200 V

100 V/us

30 mA

40 us

TO-220AB

e3

40

260

MIL-STD-750

SJ6040L2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

15 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

Matte Tin (Sn)

40 A

R-PSFM-T3

1

1.5 V

600 V

350 V/us

50 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SJ6040LTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

40 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

Matte Tin (Sn)

40 A

R-PSFM-T3

1

1.5 V

600 V

600 V/us

60 mA

TO-220AB

e3

40

260

MIL-STD-750, UL RECOGNIZED

SV6012L2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

10 mA

120 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012L1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

6 mA

120 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012R1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

6 mA

120 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012R2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

10 mA

120 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6016L2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

10 mA

225 A

THROUGH-HOLE

RECTANGULAR

10.2 A

1

600 V

3000 uA

3

150 Cel

-40 Cel

16 A

R-PSFM-T3

1.5 V

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6016R1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

6 mA

225 A

THROUGH-HOLE

RECTANGULAR

10.2 A

1

600 V

3000 uA

3

150 Cel

-40 Cel

16 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6016L1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

6 mA

225 A

THROUGH-HOLE

RECTANGULAR

10.2 A

1

600 V

3000 uA

3

150 Cel

-40 Cel

16 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025R2QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.7 V

PLASTIC/EPOXY

10 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

800 V/us

40 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025L1QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

6 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

400 V/us

25 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025R1QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.7 V

PLASTIC/EPOXY

6 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

400 V/us

25 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012R2QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.65 V

PLASTIC/EPOXY

10 mA

180 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

1.5 V

600 V

800 V/us

40 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012L2QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.65 V

PLASTIC/EPOXY

10 mA

180 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

1.5 V

600 V

800 V/us

40 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020R2QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.65 V

PLASTIC/EPOXY

10 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

800 V/us

40 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012R1QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.65 V

PLASTIC/EPOXY

6 mA

180 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

1.5 V

600 V

400 V/us

25 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020L2QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.65 V

PLASTIC/EPOXY

10 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

800 V/us

40 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020R1QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.65 V

PLASTIC/EPOXY

6 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

400 V/us

25 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6012L1QTP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.65 V

PLASTIC/EPOXY

6 mA

180 A

THROUGH-HOLE

RECTANGULAR

7.6 A

1

600 V

2000 uA

3

150 Cel

-40 Cel

12 A

R-PSFM-T3

1.5 V

600 V

400 V/us

25 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025R1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

6 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025L1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

6 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6025R2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

10 mA

350 A

THROUGH-HOLE

RECTANGULAR

16 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

25 A

R-PSFM-T3

1.5 V

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020R1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

6 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020L1TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

6 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

400 V/us

22 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020L2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

10 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SV6020R2TP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

10 mA

300 A

THROUGH-HOLE

RECTANGULAR

12.8 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

20 A

R-PSFM-T3

1.5 V

600 V

800 V/us

35 mA

TO-220AB

MIL-STD-750, UL RECOGNIZED

SJ4040RATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.7 V

PLASTIC/EPOXY

40 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

400 V

650 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ6040L2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

15 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

600 V

350 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4040L2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

15 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

400 V

400 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4040LATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

40 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

400 V

650 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4040R2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.7 V

PLASTIC/EPOXY

15 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

400 V

400 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ6040LATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.7 V

PLASTIC/EPOXY

40 mA

520 A

THROUGH-HOLE

RECTANGULAR

25 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

40 A

R-PSFM-T3

1.5 V

600 V

600 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4032R2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

400 V

400 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ6032L2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

600 V

350 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ6032R2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

600 V

350 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4032L2ATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

15 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

400 V

400 V/us

50 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4032LATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

40 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

400 V

650 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ4032RATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ANODE

1.6 V

PLASTIC/EPOXY

40 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

400 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

400 V

650 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, UL RECOGNIZED

SJ6032LATP

Littelfuse

SCR

FLANGE MOUNT

NO

SINGLE

SINGLE

ISOLATED

1.6 V

PLASTIC/EPOXY

40 mA

380 A

THROUGH-HOLE

RECTANGULAR

20 A

1

600 V

4000 uA

3

150 Cel

-40 Cel

32 A

R-PSFM-T3

1.5 V

600 V

600 V/us

60 mA

TO-220AB

AEC-Q101, MIL-STD-750, 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.