STF42 is a small signal NPN transistor with high voltage characteristics and SOT-89 package. It is suitable for applications such as video amplifier circuits and telephone wireline interfaces.
This document provides preliminary technical information for the STF42, a silicon epitaxial planar NPN high voltage transistor designed for surface mounting circuits. It is housed in a miniature SOT-89 plastic package and includes tape and reel packing options.
The datasheet outlines specific applications such as video amplifier circuits (RGB cathode current control) and telephone wireline interfaces (hook switches, dialer circuits). Key specifications include absolute maximum ratings for collector-base voltage (300 V), collector-emitter voltage (300 V), and total dissipation at 25 °C (1.3 W).
| Collector-Emitter Voltage (Ip = 0) | 300 V |
|---|---|
| Emitter-Base Voltage (Ic = 0) | 5 V |
| Collector Current | 0.1 A |
| Collector Peak Current | 0.2 A |
| Total Dissipation at Te = 25 °C | 1.3 W |
| Storage Temperature | -65 to 150 °C |
| DC Current Gain (Ic = 30 mA, Vee=10V) | 75 |
| Transition Frequency (Ic=15 mA, Vce=10V) | 60 MHz |
The PNP complementary type is STF92.
No, STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval.
The device uses a miniature SOT-89 plastic package.