PACKAGE DIMENSIONS

9/30/03

Page 1 of 9

© 2002 Fairchild Semiconductor Corporation

HALF PITCH MINI-FLAT PACKAGE

4-PIN OPTOCOUPLERS

HMHAA280

HMHA2801 SERIES

HMHA281

DESCRIPTION

The HMHA281, HMHA2801 Series consists of a gallium arsenide infrared emitting diode driving a silicon

phototransistor in a compact 4-pin mini-flat package. The lead pitch is 1.27 mm.

The HMHAA280 series consists of two gallium arsenide infrared emitting diodes, connected in inverse

parallel, driving a single silicon phototransistor in a compact 4-pin mini-flat package. The lead pitch is 1.27mm.

FEATURES

•

Compact 4-pin package

(2.4 mm maximum standoff height)

•

Half pitch leads for optimum board space savings

•

Current Transfer Ratio in selected groups

HMHA2801: 80-600%

HMHA2801A: 80-160%

HMHA2801B: 50-150%

HMHA2801C: 50-100%

HMHA281: 50-600%

HMHAA280: 50-600%

•Available in tape and reel quantities of 500 and 2500

•

Applicable to Infrared Ray reflow (230°C Max, 30 seconds)

•

BSI (File #8611/8612), CSA (File #1201524), UL (File #E90700)

and VDE (File #136480) certified

APPLICATIONS

HMHAA280

•AC line monitor

•

Unknown polarity DC sensor

•Telephone line receiver

HMHA281, HMHA2801 Series

•

Digital logic inputs

•

Microprocessor inputs

•Power supply monitor

•Twisted pair line receiver

•Telephone line receiver

NOTE

All dimensions are in inches (millimeters)

1

2

4

3 EMITTER

COLLECTOR

1

2

4

3 EMITTER

COLLECTOR

ANODE

CATHODE

Equivalent Circuit

(HMHA281, HMHA2801)

Equivalent Circuit

(HMHAA280)

0.287 (7.29)

0.248 (6.30)

0.020 (0.51)

0.012 (0.30)

0.173 (4.40)

TYP

0.035 (0.89)

0.012 (0.30)

0.008 (0.20)

0.000 (0.0)

PIN 1

0.106 (2.69)

0.091 (2.31)

0.030 (0.75)

0.022 (0.55)

0.050 (1.27)

0.094 (2.39)

0.079 (2.01)