The LH1540 is a robust SPST normally open switch (1 Form A) designed for telecom and ground fault applications. It is an optically coupled solid state relay featuring a GaAlAs LED for actuation control and MOSFET switches. It includes current-limiting circuitry to protect against overvoltage and provides clean, bounce-free switching with isolation up to 5300 VRMS.
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| Contact Form | SPST-NO (1 Form A) |
| Load Voltage Max | 350V |
| Continuous Load Current | 120mA |
| On-State Resistance Max | 25Ohms |
| On-State Resistance Typical | 22Ohms |
| Isolation Voltage | 5300VRMS |
| Forward Voltage | 1.26V |
| Input Forward Current | 50mA |
| Off-State Leakage Current Max | 1µA |
| I/O Capacitance Typ | 0.8pF |
| RoHS | Compliant |
| Ul | File E52744 |
| Vde | DIN EN 60747-5-5 (Option 1) |
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