The 4N37 is a transistor-output photocoupler designed for signal isolation in power supply regulators and digital logic interfaces. It features a 1.5 kVrms isolation voltage, a minimum current transfer ratio of 100% at 10 mA forward current and 10 V collector-emitter voltage, and a typical response time of 3 µs. The device is available in a dual-in-line package with a creepage and clearance distance of at least 7.0 mm. It meets safety standards including UL, CSA, FIMKO, VDE, BSI, and CQC, and is RoHS compliant. The maximum collector-emitter voltage is 30 V, and the operating temperature range is -55 °C to 100 °C.
Transistor Output Optocouplers PTR 100%, 1.5KV Product overview: 4N37 from Lite-On is a Bipolar Transistor for signal amplification, switching, driver stages, discrete power control, and general electronic circuit design. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include 1.5KV. Search-friendly keywords include transistor, BJT, switching, amplification, 1.5KV, Bipolar Transistor, Transistor, Photovoltaic Output Optoisolators. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 903-4N37 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-4N37 |
| Product Name | 1.5KV Bipolar Transistor |
| Package Type | Tube |
