Vishay Semiconductors LH1502BAC, LH1502BACTR, LH1502BB Dual 1 Form A/B, C Solid State Relay.
The LH1502 series are dual 1‑form A/B/C solid‑state relays built as multi‑chip hybrid devices. Actuation is provided by an infrared LED and the output combines a photodiode array with MOSFET switches. The relays are offered in SMD‑8 and DIP‑8 packages and are RoHS‑compliant. Typical applications include telecom switching, instrumentation and industrial control circuits.
The datasheet lists electrical characteristics such as a 3750 V RMS isolation voltage, 20 Ω typical on‑resistance, 350 V load voltage, 150 mA load current, and a continuous power dissipation of 600 mW. It also provides absolute maximum ratings, typical turn‑on/turn‑off times, and package dimensions, together with ordering information for each part number.
| Isolation test voltage | 3750 V RMS |
|---|---|
| Typical on‑resistance (RON) | 20 Ω |
| Load voltage | 350 V |
| Load current | 150 mA |
| Continuous DC load current (form C) | 150 mA |
| Peak load current (single shot, form B) | 350 mA |
| Output power dissipation (continuous) | 600 mW |
| Ambient operating temperature range | -40 °C to +85 °C |
| Storage temperature range | -40 °C to +125 °C |
The relays are rated for an isolation test voltage of 3750 V RMS.
Typical on‑resistance is 20 Ω.
They can handle a load voltage of 350 V and a load current of 150 mA.
Ambient operating temperature is –40 °C to +85 °C, and storage temperature is –40 °C to +125 °C.