PACKAGE DIMENSIONS
FULL PITCH MINI-FLAT PACKAGE
4-PIN OPTOCOUPLERS
11/12/03
Page 1 of 10
© 2003 Fairchild Semiconductor Corporation
HMA121 Series HMA124 HMA2701 Series HMAA2705
1
2
4
3 EMITTER
COLLECTOR
1
2
4
3 EMITTER
COLLECTORANODE
CATHODE
Equivalent Circuit
(HMA2701, HMA121, HMA124)
Equivalent Circuit
(HMAA2705)
DESCRIPTION
The HMA124, HMA121 series and HMA2701 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 2.54 mm.
The HMAA2705 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 2.54mm.
FEATURES
• Compact 4-pin package
(2.4 mm maximum standoff height)
• Current Transfer Ratio in selected groups
HMA121: 50–600% HMA2701: 50–300%
HMA121A: 100–300% HMA2701A: 150–300%
HMA121B: 50–150% HMA2701B: 80–160%
HMA121C: 100–200% HMA124: 100% MIN
HMA121D: 50–100% HMAA2705: 50–300%
HMA121E: 150–300%
HMA121F: 100–600%
• 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 #1162301), UL (File #E90700)
and VDE (File #136480) certified
• Creepage
≥
5 mm, typical 5.2 mm
• Clearance
≥
5 mm, typical 5.2 mm
APPLICATIONS
HMAA2705
• AC line monitor
• Unknown polarity DC sensor
• Telephone line receiver
HMA121 series, HMA2701 series, HMA124
• Digital logic inputs
• Microprocessor inputs
• Power supply monitor
• Twisted pair line receiver
• Telephone line receiver
NOTE
All dimensions are in inches (millimeters)
0.287 (7.29)
0.248 (6.30)
0.020 (0.51)
0.012 (0.30)
0.169 (4.29)
0.154 (3.91)
0.173 (4.40)
TYP
0.035 (0.89)
0.012 (0.30)
0.008 (0.20)
0.000 (0.0)
0.100 (2.54) TYP
0.033 (0.85)
0.026 (0.65)
0.094 (2.39)
0.079 (2.01)
PIN 1
