MPSA44 NPN High Voltage Bipolar Transistor
The MPSA44 NPN High Voltage Bipolar Transistor is a silicon bipolar junction transistor engineered for robust high‑voltage switching and amplification in a wide range of electronic designs. It is specifically designed to handle elevated voltage conditions in circuits where reliable performance under stress is critical. The device is optimized for applications requiring a high collector‑base voltage and substantial breakdown margins while maintaining low leakage and predictable gain characteristics.
Feature:
- High collector-emitter breakdown voltage of 400VDC.
- Supports continuous collector current up to 300mADC.
- Low collector-emitter saturation voltage for improved efficiency.
- Rugged TO-92 plastic package for reliable through-hole mounting.
- Wide operating temperature range from -55°C to +150°C.
- High-speed switching and linear amplification capabilities.
- Low output capacitance for better high-frequency performance.
Specifications:
| Parameter | Value |
|---|---|
| Collector-Emitter Voltage | 400VDC |
| Collector-Base Voltage | 500VDC |
| Emitter-Base Voltage | 6VDC |
| Collector Current – Continuous | 300mADC |
| Total Device Dissipation @ TA=25°C | 625mW |
| Derate above 25°C (Ambient) | 5mW/°C |
| Total Device Dissipation @ TC=25°C | 1.5W |
| Derate above 25°C (Case) | 12mW/°C |
| Operating and Storage Temperature Range | -55°Cto+150°C |
| Thermal Resistance, Junction to Ambient | 200°C/W |
| Thermal Resistance, Junction to Case | 83.3°C/W |
| DC Current Gain (IC=10mADC, VCE=10VDC) | 50(min) |
| Collector-Emitter Saturation Voltage (IC=50mADC, IB=5mADC) | 0.75VDC(max) |
| Base-Emitter Saturation Voltage (IC=50mADC, IB=5mADC) | 1.2VDC(max) |
| Current-Gain Bandwidth Product (IC=10mADC, VCE=20VDC, f=100MHz) | 50MHz(min) |
| Collector-Base Capacitance (VCB=20VDC, f=1MHz) | 7pF(max) |
Pin Configuration:
- Pin 1: Emitter.
- Pin 2: Base.
- Pin 3: Collector.
Applications:
- High‑voltage switching circuits.
- Signal amplification in analog high‑voltage environments.
- Power supply and driver modules.
- Industrial control circuits.
- Educational and prototyping hardware designs.
Package Include:
1x MPSA44 NPN High Voltage Bipolar Transistor


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