| Manufacturer | Part Number | Description |
|---|---|---|
Multicomp |
2N4870 | Unijunction Transistor |
Motorola Semiconductor (now NXP Semiconductors) |
2N4870 | PN UNIJUNCTION TRANSISTORS |
| 2N4870 | SILICON PN UNIJUNCTION TRANSISTORS | |
| 2N4870 | SILICON CONTROLLED RECTIFIERS | |
NTE Electronics (defunct) |
2N4870 | Unijunction Transistor |
| Solid State | 2N4870 | PN UNIJUNCTION TRANSISTORS |