The 4N22 is a hermetically sealed optically coupled isolator consisting of an infrared emitting diode and a silicon NPN phototransistor in a TO-78 package. It provides 1 kV electrical isolation between input and output, with a continuous collector current rating of 50 mA and a collector-emitter voltage rating of 35 V. The device is processed to MIL-PRF-19500/486 and operates over a temperature range of -65°C to +125°C. The collector is not electrically isolated from the case. The base contact is provided for conventional transistor biasing.
Optocoupler DC-IN 1-CH Transistor With Base DC-OUT 6-Pin TO-78 Clamshell Product overview: 4N22 from TT Electronics / Optek Technology 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 key electrical ratings, package details, and application requirements. Search-friendly keywords include transistor, BJT, switching, amplification, 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 903-4N22 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-4N22 |
| Product Name | Bipolar Transistor |
| Package Type | Clamshell |
