The 4N28 is a transistor-output optocoupler comprising an infrared LED and a phototransistor in a 6-pin DIP package, designed for signal transmission between circuits of different potentials and impedances. It features an isolation voltage of 500 Vrms, a collector-emitter breakdown voltage of 30 V, a maximum collector current of 100 mA, and a current transfer ratio of at least 10% at IF=10 mA and VCE=10 V. The rise and fall times are typically 3 µs under standard test conditions. The device is approved by UL, TUV, CSA, FIMKO, NEMKO, DEMKO, SEMKO, and VDE. Operating temperature ranges from -55 °C to +100 °C.
Transistor Output Optocouplers PTR 10%, 0.5KV Product overview: 4N28 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 0.5KV. Search-friendly keywords include transistor, BJT, switching, amplification, 0.5KV, 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 903-4N28 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-4N28 |
| Product Name | 0.5KV Bipolar Transistor |
| Package Type | Tube |
