TFA38S datasheet(2/12 Pages) SANKEN

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Reverse Blocking Triode Thyristor

TFA3x

Series

Selection Guide

Part Number

VDRM

(V)

UL-Recognized

Component

Package

Packing

TFA37(I)

700

Yes

3-pin fully molded SIP with

heatsink mount

50 pieces per tube

TFA37S

700

–

TFA38(I)

800

Yes

TFA38S

800

–

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Units

Peak Repetitive Off-State Voltage

VDRM

TFA37x

TJ = –40°C to 150°C, RGREF = 1 kΩ

700

TFA38x

800

Isolation Voltage

VISO

AC RMS applied for 1 minute between lead and case

1800

Average On-State Current

IT(AV)

50 Hz half cycle sine wave, Conduction angle (

α) = 180°,

continuous operation, TC = 127°C

3.0

RMS On-State Current

IT(RMS)

4.7

Surge On-State Current

ITSM

f = 60 Hz

Half cycle sine wave, single, non-repetitive

f = 50 Hz

I2t Value for Fusing

I2t

Value for 50 Hz half cycle sine wave, 1 cycle, ITSM = 60 A

A2• s

Critical Rising Rate of On-State Current

di/dt

IT = IT(RMS) ×

π, VD = VDRM × 0.5, f ≤ 60 Hz, tgw ≥ 10 μs, tgr ≤ 250

ns, igp ≥ 30 mA (refer to Gate Trigger Circuit diagram)

A/μs

Peak Forward Gate Current

IFGM

f ≥ 50 Hz, duty cycle ≤ 10%

2.0

Peak Forward Gate Voltage

VFGM

f ≥ 50 Hz, duty cycle ≤ 10%

Peak Reverse Gate Current

VRGM

f ≥ 50 Hz

5.0

Peak Gate Power Dissipation

PGM

f ≥ 50 Hz, duty cycle ≤ 10%

5.0

Average Gate Power Dissipation

PGM(AV)

TJ < TJ(max)

0.5

Junction Temperature

–40 to 150

ºC

Storage Temperature

Tstg

–40 to 150

ºC

Terminal List Table

Number

Name

Function

Cathode terminal

Anode terminal

Gate control

Pin-out Diagram

Thermal Characteristics May require derating at maximum conditions

Characteristic

Symbol

Test Conditions

Value

Units

Package Thermal Resistance

(Junction to Case)

RθJC

For AC

4.1

ºC/W

All performance characteristics given are typical values for circuit or

system baseline design only and are at the nominal operating voltage and

an ambient temperature, TA, of 25°C, unless otherwise stated.

12 3

Allegro MicroSystems, Inc.

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

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