HALF PITCH MINI-FLAT PACKAGE
4-PIN OPTOCOUPLERS
HMHAA280
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.
HMHA2801 SERIES
HMHA281
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
0.094 (2.39)
0.079 (2.01)
PACKAGE DIMENSIONS
PIN 1
0.050 (1.27)
0.020 (0.51)
0.012 (0.30)
0.287 (7.29)
0.248 (6.30)
0.173 (4.40)
TYP
0.106 (2.69)
0.091 (2.31)
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
0.035 (0.89)
0.012 (0.30)
0.008 (0.20)
0.000 (0.0)
0.030 (0.75)
0.022 (0.55)
NOTE
All dimensions are in inches (millimeters)
1
4 COLLECTOR
2
3 EMITTER
Equivalent Circuit
(HMHAA280)
ANODE 1
4 COLLECTOR
CATHODE 2
3 EMITTER
Equivalent Circuit
(HMHA281, HMHA2801)
© 2002 Fairchild Semiconductor Corporation
Page 1 of 9
9/30/03
FAIRCHILD [ FAIRCHILD SEMICONDUCTOR ]
