BRT21/ 22/ 23

Document Number 83690

Rev. 1.4, 10-Jan-05

Vishay Semiconductors

www.vishay.com

1

17223

1

2

3

6

5

4

MT2

MT1

A

C

NC

*Zero Crossing Circuit

ZCC*

NC

Optocoupler, Phototriac Output, Zero Crossing

Features

• High Static dv/dt 10,000 V/

µs

• Electrically Insulated between Input and

Output circuit

• Microcomputer compatible

• Trigger Current

• Available Surface Mount and on on tape and reel

• Zero Voltage Crossing detector

• UL File E52744 System Code "J"

• Lead-free component

• Component in accordance to RoHS 2002/95/EC

and WEEE 2002/96/EC

Applications

• Industrial controls

• Office equipment

• Consumer appliances

Description

The BRT21, BRT22, BRT23 product family consists

of

AC switch optocouplers with zero voltage detec-

tors with two electrically insulated lateral power ICs

which integrate a thyrister system, a photo detector

and noise suppression at the output and an IR GaAs

diode input

High input sensitivity is achieved by using an emitter

follower phototransistor and an SCR predriver result-

ing in an LED trigger current of less than 2 mA or 3 mA

(DC).

Inverse parallel SCRs provide commutating

dv/dt greater than 10 kV/

µs

The zero cross line voltage detection circuit consists

of two MOSFETS and a photodiode.

THe BRT21/ 22/ 23 product family isolates low-volt-

age logic from 120, 230 and 380 VAC lines to control

resistive, inductive or capacitive loads including

motors, solenoids, high current thyristers or TRIAC

and relays.

Order Information

For additional information on the available options refer to

Option Information.

Part

Remarks

BRT21H

BRT21M

BRT22F

BRT22H

BRT22M

BRT23F

BRT23H

BRT23M

BRT21H-X006

BRT21H-X007

BRT21M-X006

BRT22F-X006

BRT22H-X007

BRT22M-X006

BRT23F-X006

BRT23F-X007

BRT23H-X006

BRT23H-X007

BRT23M-X006

BRT23M-X007