SIEMENS MPSA 42 MPSA 43 Data Sheet
Summary
These NPN Silicon High-Voltage Transistors are robust switching components engineered for demanding power electronic applications, offering a combination of high breakdown voltage and low saturation loss. This detailed manual serves as a comprehensive technical resource, covering maximum ratings and precise electrical characteristics, including DC/AC performance metrics. It is tailored for electronics designers and engineers who require reliable data to select optimal semiconductors for complex power conversion and switching circuit designs, ensuring efficient operation and thermal management across various conditions.
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NPN Silicon High-Voltage Transistors MPSA 42 MPSA 43
High breakdown voltage Low collector-emitter saturation voltage Complementary types: MPSA 92
MPSA 93 (PNP)
Type Marking Ordering Code Pin Configuration Package
MPSA 42 MPSA 42 Q68000-A413 TO-92 MPSA 43 MPSA 43 Q68000-A4809
Maximum Ratings
Parameter Symbol Values Unit
MPSA 42 MPSA 43
Collector-emitter voltage VCE0 Collector-base voltage VCB0 Emitter-base voltage VEB0 Collector current IC m A Base current IB
Total power dissipation, TC = 66 ˚C Ptot m W
Junction temperature Tj ˚C
Storage temperature range Tstg – 65 … + 150
Thermal Resistance Junction - ambient Rth JA K/W
Junction - case Rth JC
1) For detailed information see chapter Package Outlines. 2) Mounted on AI-heat sink 15 mm × 25 mm × 0.5 mm.
Semiconductor Group 5.91
Page Summary Contents For SIEMENS MPSA 42 MPSA 43 Data Sheet
Manual Details
| Brand | Siemens |
|---|---|
| Pages | 4 |
| File Size | 125.92 KB |
| Published | June 04, 2026 |
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Frequently Asked Questions
What is the maximum collector-emitter voltage for these devices?
MPSA 42 supports 300V, while MPSA 43 has a rating of 200V.
How must this transistor be physically mounted to ensure cooling?
The component requires mounting on an AI-heat sink measuring 15 mm × 25 mm × 0.5 mm.
What is the key difference in saturation voltage between MPSA 42 and MPSA 43?
MPSA 42 has a $V_{CEsat}$ of 0.5V, compared to 0.4V for MPSA 43.
What is the permissible operating temperature range for the junction?
The transistor's junction temperature (Tj) must be maintained within -65 °C and +150 °C.