The devices are manufactured in planar technology with “base island” layout and monolithic Darlington configuration.
| Part Number | Manufacturer | Description |
|---|---|---|
| TIP121F | JCET | NPN Transistor |
| TIP121 | Bourns | NPN SILICON POWER DARLINGTONS |
| TIP121 | Fairchild Semiconductor | NPN Transistor |
| TIP121 | Motorola Semiconductor | DARLINGTON 5 AMPERE COMPLEMENTARY SILICON POWER TRANSISTORS |
| TIP121 | Inchange Semiconductor | NPN Transistor |
| TIP121F | yecheng technology | DARLINGTON TRANSISTOR |
| TIP121 | Diotec Semiconductor | Si-Epitaxial Planar Darlington Power Transistors |
| TIP121 | SEMIHOW | PNP Epitaxial Silicon Darlington Transistor |
| TIP121 | NTE Electronics | Silicon NPN Transistor |
| TIP121 | onsemi | Plastic Medium-Power Complementary Silicon Transistors |
