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1. Description
The HMHA281 and HMHA2801AR2 series devices consist 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.
2. Features
1. Compact 4−Pin Package
- 2.4 mm Maximum Standoff Height
- Half−Pitch Leads for Optimum Board Space Savings
2. Current Transfer Ratio:
- HMHA281: 50% to 600%
- HMHA2801: 80% to 600%
- HMHA2801A: 80% to 160%
- HMHA2801B: 130% to 260%
- HMHA2801C: 200% to 400%
3. Safety and Regulatory Approvals:
- UL1577, 3.750 VACRMS for 1 Minute
- DIN−EN/IEC60747−5−5, 565 V Peak Working Insulation Voltage
4. These Devices are Pb−Free and are RoHS Compliant
3. Applications
1. Digital Logic Inputs
2. Microprocessor Inputs
3. Power Supply Monitor
4. Twisted Pair Line Receiver
5. Telephone Line Receiver
4. product description
