SERIES CONNECTED, CENTER TAP, 2 ELEMENTS Silicon Controlled Rectifiers (SCR) 522

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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

TT140N22KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

2

2200 V

7

250 A

R-XUFM-X7

Not Qualified

2200 V

NOT SPECIFIED

NOT SPECIFIED

TT215N24KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

6300 A

UNSPECIFIED

RECTANGULAR

215 A

2

2400 V

7

Silicon Controlled Rectifiers

125 Cel

410 A

R-XUFM-X7

Not Qualified

2400 V

TT425N16KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

12000 A

UNSPECIFIED

RECTANGULAR

425 A

2

1600 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

800 A

R-XUFM-X7

1600 V

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

TT285N16KOFHPSA2

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

200 mA

UNSPECIFIED

RECTANGULAR

2

1600 V

7

130 Cel

-40 Cel

520 A

R-PUFM-X7

1600 V

HIGH RELIABILITY

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT425N14KOFHPSA2

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

800 A

R-XXFM-X7

1400 V

NOT SPECIFIED

NOT SPECIFIED

TT215N18KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

200 mA

UNSPECIFIED

RECTANGULAR

2

1800 V

7

125 Cel

-40 Cel

410 A

R-PUFM-X7

1800 V

HIGH RELIABILITY

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT61N12KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

UNSPECIFIED

RECTANGULAR

2

1200 V

7

125 Cel

-40 Cel

120 A

R-XUFM-X7

1200 V

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6

TT60N16SOFB01HPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

100 mA

UNSPECIFIED

RECTANGULAR

2

1600 V

7

125 Cel

-40 Cel

90 A

R-XUFM-X7

1600 V

NOT SPECIFIED

NOT SPECIFIED

IEC-60747-6; UL RECOGNIZED

TT310N26KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

9000 A

UNSPECIFIED

RECTANGULAR

310 A

2

80 mA

2600 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

700 A

R-XXFM-X7

1.5 V

Not Qualified

2600 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

TT330N16KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

9100 A

UNSPECIFIED

RECTANGULAR

330 A

2

1600 V

7

Silicon Controlled Rectifiers

135 Cel

-40 Cel

520 A

R-XUFM-X7

2 V

Not Qualified

1600 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

TD150N22KOC

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

2.6 V

UNSPECIFIED

200 mA

4500 A

UNSPECIFIED

RECTANGULAR

223 A

2

50 mA

2200 V

5

125 Cel

-40 Cel

350 A

R-XUFM-X5

2 V

2200 V

500 V/us

300 mA

300 us

NOT SPECIFIED

NOT SPECIFIED

TT375N22KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

11600 A

UNSPECIFIED

RECTANGULAR

573 A

2

100 mA

2200 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

900 A

R-XXFM-X7

1.5 V

Not Qualified

2200 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

TT260N18AOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1800 V

7

130 Cel

450 A

R-XUFM-X7

1800 V

TT92N14KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

1400 A

UNSPECIFIED

RECTANGULAR

60 A

2

1400 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

160 A

R-XUFM-X7

Not Qualified

1400 V

NOT SPECIFIED

NOT SPECIFIED

TT240N32KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

2

3200 V

7

125 Cel

-40 Cel

700 A

R-XXFM-X7

3200 V

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT500N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

900 A

R-XXFM-X7

Not Qualified

1400 V

NOT SPECIFIED

NOT SPECIFIED

TT215N24KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

2400 V

7

410 A

R-XUFM-X7

Not Qualified

2400 V

TT280N18SOC

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.77 V

UNSPECIFIED

150 mA

9000 A

UNSPECIFIED

RECTANGULAR

280 A

2

30 mA

1800 V

7

130 Cel

-40 Cel

520 A

R-XUFM-X7

2 V

1800 V

1000 V/us

150 mA

200 us

UL RECOGNIZED

TT142N12KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

4100 A

UNSPECIFIED

RECTANGULAR

142 A

2

1200 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

230 A

R-XUFM-X7

1200 V

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

TT106N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

180 A

R-XUFM-X7

Not Qualified

1400 V

UL RECOGNIZED

TT210N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

410 A

R-XUFM-X7

Not Qualified

1400 V

UL RECOGNIZED

TT500N16KOF_TIM

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.45 V

UNSPECIFIED

250 mA

17000 A

UNSPECIFIED

RECTANGULAR

500 A

2

100 mA

1600 V

7

125 Cel

-40 Cel

900 A

R-PUFM-X7

2.2 V

1600 V

1000 V/us

300 mA

HIGH RELIABILITY

250 us

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

TT240N18SOF

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

TT61N12KOFKHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

UNSPECIFIED

RECTANGULAR

2

1200 V

7

125 Cel

-40 Cel

120 A

R-XUFM-X7

1200 V

IEC-747-6

TT170N14KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

350 A

R-XUFM-X7

1400 V

UL RECOGNIZED

TT140N18KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

4000 A

UNSPECIFIED

RECTANGULAR

159 A

2

30 mA

1800 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

250 A

R-XUFM-X7

2 V

Not Qualified

1800 V

200 mA

NOT SPECIFIED

NOT SPECIFIED

SP000096734

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.41 V

UNSPECIFIED

150 mA

5200 A

UNSPECIFIED

RECTANGULAR

162 A

2

30 mA

1400 V

7

125 Cel

-40 Cel

260 A

R-XUFM-X7

2 V

1400 V

1000 V/us

200 mA

200 us

IEC-747-6, UL RECOGNIZED

TT240N16SOF

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

1600 V

7

140 Cel

275 A

R-XUFM-X7

2.5 V

1600 V

1000 V/us

200 mA

370 us

NOT SPECIFIED

NOT SPECIFIED

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

TT240N28KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

6100 A

UNSPECIFIED

RECTANGULAR

445 A

2

250 mA

2800 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

700 A

R-XXFM-X7

1.5 V

Not Qualified

2800 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

TT142N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

230 A

R-XUFM-X7

Not Qualified

1400 V

UL RECOGNIZED

TT570N14KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

17000 A

UNSPECIFIED

RECTANGULAR

570 A

2

140 mA

1400 V

7

Silicon Controlled Rectifiers

135 Cel

-40 Cel

900 A

R-XXFM-X7

2.2 V

Not Qualified

1400 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

TT210N18KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1800 V

7

410 A

R-XUFM-X7

1800 V

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

TT280N16SOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.77 V

UNSPECIFIED

150 mA

9000 A

UNSPECIFIED

RECTANGULAR

280 A

2

30 mA

1600 V

7

130 Cel

-40 Cel

520 A

R-XUFM-X7

2 V

1600 V

1000 V/us

150 mA

200 us

NOT SPECIFIED

NOT SPECIFIED

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

TT104N12KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

UNSPECIFIED

RECTANGULAR

2

1200 V

7

140 Cel

-40 Cel

160 A

R-XUFM-X7

1200 V

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT142N16KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

150 mA

4100 A

UNSPECIFIED

RECTANGULAR

142 A

2

1600 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

230 A

R-XUFM-X7

Not Qualified

1600 V

NOT SPECIFIED

NOT SPECIFIED

TD150N26KOC

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

2.6 V

UNSPECIFIED

200 mA

4500 A

UNSPECIFIED

RECTANGULAR

223 A

2

50 mA

2600 V

5

125 Cel

-40 Cel

350 A

R-XUFM-X5

2 V

2600 V

500 V/us

300 mA

300 us

NOT SPECIFIED

NOT SPECIFIED

TT210N14KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

5800 A

UNSPECIFIED

RECTANGULAR

210 A

2

50 mA

1400 V

7

Silicon Controlled Rectifiers

125 Cel

-40 Cel

410 A

R-XUFM-X7

2 V

Not Qualified

1400 V

300 mA

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

TT500N16KOFTIMHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

250 mA

UNSPECIFIED

RECTANGULAR

2

1600 V

7

125 Cel

-40 Cel

900 A

R-PUFM-X7

1600 V

HIGH RELIABILITY

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT61N14KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

120 A

R-XUFM-X7

1400 V

NOT SPECIFIED

NOT SPECIFIED

TT61N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

120 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

120 A

R-XUFM-X7

Not Qualified

1400 V

TT820N16KOF_TIM

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.27 V

PLASTIC/EPOXY

250 mA

24800 A

UNSPECIFIED

RECTANGULAR

820 A

2

120 mA

1600 V

7

135 Cel

-40 Cel

1050 A

R-PUFM-X7

2 V

1600 V

1000 V/us

300 mA

HIGH RELIABILITY

250 us

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

TT240N36KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UNSPECIFIED

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

250 mA

UNSPECIFIED

RECTANGULAR

2

3600 V

7

125 Cel

-40 Cel

700 A

R-XXFM-X7

3600 V

NOT SPECIFIED

NOT SPECIFIED

IEC-747-6; UL RECOGNIZED

TT170N16KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

200 mA

UNSPECIFIED

RECTANGULAR

2

1600 V

7

125 Cel

-40 Cel

350 A

R-PUFM-X7

1600 V

HIGH RELIABILITY

IEC-747-6; UL RECOGNIZED

TT330N12KOC

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

9100 A

UNSPECIFIED

RECTANGULAR

330 A

2

70 mA

1200 V

7

Silicon Controlled Rectifiers

135 Cel

-40 Cel

MATTE TIN

520 A

R-XUFM-X7

2 V

Not Qualified

1200 V

300 mA

e3

TT170N12KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

PLASTIC/EPOXY

200 mA

UNSPECIFIED

RECTANGULAR

2

1200 V

7

125 Cel

-40 Cel

350 A

R-PUFM-X7

1200 V

HIGH RELIABILITY

IEC-747-6; UL RECOGNIZED

TT210N14KOFHPSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

410 A

R-XUFM-X7

1400 V

NOT SPECIFIED

NOT SPECIFIED

UL RECOGNIZED

TT330N14KOFHOSA1

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

UNSPECIFIED

200 mA

UNSPECIFIED

RECTANGULAR

2

1400 V

7

MATTE TIN

520 A

R-XUFM-X7

Not Qualified

1400 V

e3

TT780N18KOF

Infineon Technologies

SCR

FLANGE MOUNT

NO

UPPER

SERIES CONNECTED, CENTER TAP, 2 ELEMENTS

ISOLATED

1.35 V

PLASTIC/EPOXY

250 mA

23500 A

UNSPECIFIED

RECTANGULAR

775 A

2

120 mA

1800 V

7

135 Cel

-40 Cel

1050 A

R-PUFM-X7

2 V

1800 V

1000 V/us

300 mA

HIGH RELIABILITY

250 us

IEC-61140, IEC-747-6, 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.