The 4N28SM is a 6-pin PDIP optocoupler with a gallium arsenide infrared LED and silicon phototransistor, used for isolating digital logic and microprocessor signals. It has an 8.51 mm × 6.35 mm package size with 2.54 mm pin pitch. The current transfer ratio is a minimum of 10% at IF = 10 mA and VCE = 10 V. It supports a 30 V collector-emitter voltage, 4170 VAC RMS isolation for 1 minute, and 850 V peak working insulation voltage. The device meets UL1577 and DIN EN/IEC60747-5-5 safety standards with a 175 V Comparative Tracking Index. Operating temperature ranges from -40°C to +100°C, with a maximum junction temperature of 125°C. It is rated for 270 mW total power dissipation at 25°C and supports lead solder temperatures up to 260°C for 10 seconds.
Transistor Output Optocouplers PHOTO TRANS Product overview: 4N28SM from Fairchild (onsemi) 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 903-4N28SM can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-4N28SM |
| Product Name | Bipolar Transistor |
| Package Type | Bulk |
