BOTTOM Triode For Alternating Current (TRIAC) 78

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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 Commutation Voltage Minimum Critical Rate of Rise of Off-state Voltage Maximum Holding Current Additional Features JEDEC-95 Code JESD-609 Code Maximum Time At Peak Reflow Temperature (s) Peak Reflow Temperature (C) Reference Standard

Z0103DA1AA2

STMicroelectronics

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

3 mA

THROUGH-HOLE

ROUND

1

.01 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1

1.5 V

Not Qualified

400 V

7 mA

SENSITIVE GATE

TO-92

e3

Z0110NA1AA2

STMicroelectronics

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

25 mA

THROUGH-HOLE

RECTANGULAR

1

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

R-PBCY-T3

1.3 V

Not Qualified

800 V

5 V/us

100 V/us

25 mA

SENSITIVE GATE

TO-92

e3

ACS102-5TA-TR

STMicroelectronics

SNUBBERLESS TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE WITH BUILT-IN TRIGGER ELEMENT IN SERIES WITH GATE

PLASTIC/EPOXY

THROUGH-HOLE

ROUND

1

3

MATTE TIN

.2 A

O-PBCY-T3

Not Qualified

500 V

WITH BUILT IN CLAMPING STRUCTURE AND GATE LEVEL SHIFTER DRIVER

TO-92

e3

ACS102-5TA

STMicroelectronics

SNUBBERLESS TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE WITH BUILT-IN TRIGGER ELEMENT IN SERIES WITH GATE

PLASTIC/EPOXY

5 mA

8 A

THROUGH-HOLE

ROUND

.2 A

1

3

TRIACs

125 Cel

-30 Cel

MATTE TIN

.2 A

O-PBCY-T3

.9 V

Not Qualified

500 V

WITH BUILT IN CLAMPING STRUCTURE AND GATE LEVEL SHIFTER DRIVER

TO-92

e3

BT1306-400D,412

NXP Semiconductors

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

.6 A

O-PBCY-T3

2 V

Not Qualified

400 V

30 V/us

10 mA

TO-92

e3

BT1306-600D,412

NXP Semiconductors

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

.6 A

O-PBCY-T3

2 V

Not Qualified

600 V

30 V/us

10 mA

TO-92

e3

BT1308-400D,412

NXP Semiconductors

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

2 V

Not Qualified

400 V

30 V/us

10 mA

SENSITIVE GATE

TO-92

e3

BT1308-600D,412

NXP Semiconductors

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

2 V

Not Qualified

600 V

30 V/us

10 mA

SENSITIVE GATE

TO-92

e3

Z00607MA,412

NXP Semiconductors

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

150 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-W3

2 V

Not Qualified

600 V

10 V/us

10 mA

SENSITIVE GATE

TO-92

e3

Z0103MAG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

3 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

10 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0103MARL1G

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

3 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

10 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0103MARLRFG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

3 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

10 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0103MARLRPG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

3 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

10 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0107MAG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

20 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0107MARL1G

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

20 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0107MARLRFG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

20 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0109MAG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

50 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0109MARLRFG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

50 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

Z0109MARLRPG

Onsemi

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

WIRE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

TIN SILVER COPPER

1 A

O-PBCY-W3

1.3 V

Not Qualified

600 V

50 V/us

10 mA

SENSITIVE GATE

TO-92

e1

260

L0103DEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103DERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103DE

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103MEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103MERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103NEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103NERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0103NE

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

.5 V/us

10 V/us

7 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107DEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107DERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107DE

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107MEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107MERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107NEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107NERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0107NE

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

7 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

1 V/us

20 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109DEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109DERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109DE

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109MEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109ME

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

MATTE TIN

1 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109NEAP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

L0109NERP

Littelfuse

4 QUADRANT LOGIC LEVEL TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

10 mA

THROUGH-HOLE

ROUND

1

.5 mA

3

TRIACs

125 Cel

-40 Cel

Matte Tin (Sn)

1 A

O-PBCY-T3

1.3 V

Not Qualified

800 V

2 V/us

50 V/us

10 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803DEAP

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803DERP

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803DE

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

400 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803MEAP

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803MERP

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

LX803ME

Littelfuse

TRIAC

CYLINDRICAL

NO

BOTTOM

SINGLE

PLASTIC/EPOXY

5 mA

THROUGH-HOLE

ROUND

1

.1 mA

3

TRIACs

110 Cel

-40 Cel

MATTE TIN

.8 A

O-PBCY-T3

1.3 V

Not Qualified

600 V

1.5 V/us

10 V/us

5 mA

HIGH RELIABILITY

TO-92

e3

40

260

Triode For Alternating Current (TRIAC)

A Triode for Alternating Current (TRIAC) is a semiconductor device that is used to control the flow of electrical current in AC circuits. It is a bidirectional device that can conduct current in both directions, making it useful for AC power control applications.

TRIACs consist of a bidirectional switching element that allows for the control of AC current in both directions. They are typically used in applications where AC voltage needs to be controlled, such as in lighting control, motor speed control, and power supplies.

TRIACs work by applying a small current or voltage to the gate terminal, which allows current to flow through the device. Once the current reaches a certain level, the TRIAC turns on and conducts current in both directions until the current drops below a certain threshold, at which point the TRIAC turns off.

TRIACs are commonly used in conjunction with other components such as capacitors, inductors, and diodes to form complete electronic circuits. They are often used in power control circuits that require precise control of AC voltage or current.