Fairchild HMA121 service manual
FULL PITCH MINI-FLAT PACKAGE
4-PIN OPTOCOUPLERS
HMA121 Series HMA124 HMA2701 Series 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 inv erse 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
PACKAGE DIMENSIONS
PIN 1
0.100 (2.54) TYP
0.020 (0.51)
0.012 (0.30)
0.035 (0.89)
0.012 (0.30)
NOTE
All dimensions are in inches (millimeters)
0.287 (7.29)
0.248 (6.30)
0.173 (4.40)
1
2
Equivalent Circuit
(HMAA2705)
TYP
0.008 (0.20)
0.000 (0.0)
4
COLLECTOR
3 EMITTER
0.169 (4.29)
0.154 (3.91)
0.033 (0.85)
0.026 (0.65)
0.094 (2.39)
0.079 (2.01)
© 2003 Fairchild Semiconductor Corporation
Page 1 of 10
1
CATHODE
2
(HMA2701, HMA121, HMA124)
Equivalent Circuit
4
COLLECTORANODE
3 EMITTER
11/12/03
FULL PITCH MINI-FLAT PACKAGE
4-PIN OPTOCOUPLERS
HMA121 Series HMA124 HMA2701 Series HMAA2705
(T
ABSOLUTE MAXIMUM RATINGS
Parameter Symbol Value Units
TOTAL PACKAGE
Storage Temperature
Operating Temperature
EMITTER
Continuous Forward Current
Peak Forward Current (1 µs pulse, 300 pps.)
Reverse Input Voltage (HMA)
Power Dissipation
Derate linearly (above 25°C) 0.65 mW/°C
DETECTOR
Continuous Collector Current 80 mA
Power Dissipation
Derate linearly (above 25°C) 2.0 mW/°C
Collector-Emitter V oltage
Emitter-Collector V oltage
HMA2701 Series, HMAA2705
= 25°C unless otherwise specified)
A
T
STG
T
OPR
I
F (avg)
I
F (pk)
V
R
P
D
P
D
V
V
CEO
ECO
HMA121 Series, HMA124 80
-40 to +125 °C
-40 to +100 °C
50 mA
70 mW
150 mW
40
1A
6V
V
7V
© 2003 Fairchild Semiconductor Corporation
Page 2 of 10
11/12/03
FULL PITCH MINI-FLAT PACKAGE
4-PIN OPTOCOUPLERS
HMA121 Series HMA124 HMA2701 Series HMAA2705
ELECTRICAL CHARACTERISTICS
(T
= 25°C)
A
INDIVIDUAL COMPONENT CHARACTERISTICS
Parameter Test Conditions Symbol Device Min Typ** Max Unit
EMITTER
Forward Voltage HMA124
Reverse Current
= 10 mA)
(I
F
(I
= 5 mA)
F
(I
= ± 5 mA)
F
(V
R
= 5 V) I
V
F
R
DETECTOR
Breakdown V oltage HMA124
Collector to Emitter HMA2701 Series
Emitter to Collector
Collector Dark Current
Capacitance
(I
= 1 mA, I
C
(I
= 100 µA, I
E
(V
= 40 V, I
CE
(V
= 0 V, f = 1 MHz) C
CE
F
F
F
= 0) BV
= 0) BV
= 0) I
CEO
ECO
CEO
CE
HMA121 Series
1.0 1.3
HMA2701 Series
HMAA2705
HMA2701 Series
HMA124
HMA121 Series
HMAA2705
80
40
All 7
All 100 nA
All 10 pF
V
1.4
5µAHMA121 Series
V
© 2003 Fairchild Semiconductor Corporation
Page 3 of 10
11/12/03
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