The product is a Zetex ZXTN04120HFF NPN medium power Darlington transistor with an operating voltage of 120V and a maximum collector current of 1A and a rated power of 1.5W.
The ZXTN04120HFF is a medium‑power NPN Darlington transistor housed in a small‑outline SOT23 flat package, ideal for space‑constrained applications such as lamp, relay and solenoid drives. It offers a 120 V collector‑emitter breakdown voltage and a continuous collector current of 1 A.
The datasheet provides absolute maximum ratings, detailed electrical characteristics, typical performance curves, and mechanical package dimensions, along with sales contact information for Zetex offices worldwide.
| Collector‑Emitter Voltage (BVCEO) | 120 V |
|---|---|
| Continuous Collector Current (IC) | 1 A |
| Collector‑Emitter Saturation Voltage (VCE(sat)) | < 1.5 V @ 1 A |
| Transition Frequency (fT) | 120 MHz |
| Package Type | SOT23F surface‑mount |
The device is rated for a collector‑emitter breakdown voltage of 120 V.
It can conduct up to 1 A continuously.
The transition frequency is specified as 120 MHz.