The IS121 is an infrared LED optically coupled to an NPN silicon phototransistor in a surface-mount Mini Flat Package, designed for signal transmission between systems of different potentials. It has an isolation voltage of 3750 V RMS, operates from -55°C to +110°C, and meets RoHS and UL 94 V-0 standards. The package is listed as surface-mount with tape and reel packaging of 3000 pieces per reel. Maximum forward current is 50 mA, collector current is 50 mA, and junction temperature is 125°C. The current transfer ratio ranges from 50% to 600% without grade specification, and saturation voltage is 0.2 V at 20 mA forward current and 1 mA collector current.
4PIN TRANSISTOR OUTPUT, SMD OPTO Product overview: IS121 from Isocom Components 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 SMD. Search-friendly keywords include transistor, BJT, switching, amplification, SMD, 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-IS121 can be used for catalog matching and distributor lookup.
| ERSAELECTRONICS PTE. LTD. | |
|---|---|
| Product Category | Bipolar RF Transistors |
| Product Number | 903-IS121 |
| Product Name | SMD Bipolar Transistor |
| Package Type | Tape & Reel (TR) |
| Packing Method | Tape & Reel (TR) |
| IC(max) | 50000 milliamps |
