Fairchild MPSA63 MMBTA63 PZTA63 PNP Darlington Transistor User's Manual
Summary
These datasheets provide comprehensive technical specifications for Darlington Transistors, ideal for applications demanding extreme high current gain and reliable power switching up to 800 mA. The manual covers all necessary electrical characteristics, including absolute maximum ratings, thermal management curves, saturation voltages, and DC/PNP parameters. This resource is essential for electrical engineers and circuit designers who require robust components for demanding power electronic and signal transfer systems.
Page 1 Text Content
PSA 63 / M TA 63 / PZTA 63 — PN P D arlington Transistor
August 2010
MPSA63 / MMBTA63 / PZTA63 PNP Darlington Transistor Features This device is designed for applications requiring extremely high current gain at currents to 800 m A. Sourced from Process 61.
MPSA63 MMBTA63 PZTA63
TO-92 SOT-23 SOT-223
Mark:2U
Absolute Maximum Ratings * Ta = 25°C unless otherwise noted Symbol Parameter Value Units VCES Collector-Emitter Voltage -30
VCBO Collector-Base Voltage -30 VEBO Emitter-Base Voltage -10 IC Collector Current - Continuous -1.2 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 Parameter Units
MPSA63 *MMBTA63 **PZTA63
Total Device Dissipation 1,000 m W
Derate above 25°C 5.0 2.8 8.0 m W/°C RθJC Thermal Resistance, Junction to Case 83.3 °C/W RθJA Thermal Resistance, Junction to Ambient °C/W
* Device mounted on FR-4 PCB 1.6” × 1.6” × 0.06”. ** Device mounted on FR-4 PCB 36mm × 18mm × 1.5mm; mounting pad for the collector lead min. 6cm2.
© 2010 Fairchild Semiconductor Corporation www.fairchildsemi.com MPSA63 / MMBTA63 / PZTA63 Rev. A1
Page Summary Contents For Fairchild MPSA63 MMBTA63 PZTA63 PNP Darlington Transistor User's Manual
Manual Details
| Brand | Fairchild |
|---|---|
| Pages | 4 |
| File Size | 179.82 KB |
| Published | July 15, 2026 |
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Frequently Asked Questions
What is the maximum continuous collector current?
The continuous collector current capacity (I_C) is listed in the Absolute Maximum Ratings table, with values of -1.2 A for MPSA63.
How does thermal resistance impact operation efficiency?
Thermal Resistance (Rth) dictates heat management: R junction to case (thetaJC) ranges from 83.3 °C/W to 200 °C/W, which is vital for cooling and dissipation.
Are there limits when operating at high temperatures?
The maximum operating and storage junction temperature range is -55 to +150 °C (J, stg). Factory consultation is needed for pulsed operations.
What are the standard TO-92 package variants?
The device is available in several packages including TO-92, SOT-23, and SOT-223, with different listed thermal resistances depending on the case size.