Fairchild ST5771-1 Data Handbook
Summary
The ST5771-1 is a reliable PNP Switching Transistor, optimized for high-speed saturated switching applications requiring stable performance up to 100mA. This technical document provides comprehensive specifications, including absolute maximum ratings, thermal coefficients, and detailed electrical characteristics across both DC and AC domains. It serves electronics engineers designing power management circuits or signal processing systems who require a precise component with defined turn-on/turn-off time parameters for optimal integration into their designs.
Page 1 Text Content
Discrete POWER & Signal Technologies
ST5771-1
TO-92
PNP Switching Transistor This device is designed for high speed saturated switching applications at currents to 100m A. Sourced from Process 65. See PN4258 for characteristics.
Absolute Maximum Ratings* TA = 25°C unless otherwise noted Symbol Parameter Value Units VCEO Collector-Emitter Voltage VCBO Collector-Base Voltage VEBO Emitter-Base Voltage 4.5 IC Collector Current - Continuous m A
TJ, Tstg Operating and Storage Junction Temperature Range -55 to +150 °C
*These ratings are limiting values above which the serviceability of any semiconductor device may be impaired. NOTES: 1) These ratings are based on a maximum junction temperature of 150 degrees C. 2) These are steady state limits. The factory should be consulted on applications involving pulsed or low duty cycle operations.
Thermal Characteristics TA = 25°C unless otherwise noted Symbol Characteristic Max Units
ST5771-1
PD Total Device Dissipation m W
Derate above 25°C 2.8 m W/°C
RθJC Thermal Resistance, Junction to Case °C/W
RθJA Thermal Resistance, Junction to Ambient °C/W
1997 Fairchild Semiconductor Corporation
Page Summary Contents For Fairchild ST5771-1 Data Handbook
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 2 |
| File Size | 26.89 KB |
| Published | May 28, 2026 |
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Frequently Asked Questions
What is the continuous collector current rating?
The continuous collector current rating (IC) is 200 mA.
What temperature range can this transistor handle?
The Operating and Storage Junction Temperature Range is -55 to +150 °C.
How do I calculate the ambient thermal resistance?
Thermal Resistance, Junction to Ambient (RθJA) is 357 °C/W.
What voltage range can I expect for emitter-base saturation voltage?
The Base-Emitter Saturation Voltage (VCE(sat)) ranges from 0.8 V to 0.95 V.