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Power Transistor 2SD525 NPN, 5A TO-220
The 2SD525 is a high-current NPN power transistor in a TO-220 package. Designed for motor driving, amplification stages, and power switching applications requiring robust performance at medium voltage and high collector current.
2SD525 Power Transistor - High Current NPN for Motor Driving & Amplifiers
The 2SD525 is a robust NPN power transistor capable of handling up to 5A of collector current at 100V. Its TO-220 package with integrated mounting tab makes it ideal for applications requiring a heatsink, such as motor drivers, audio power amplifiers, and industrial switching circuits.
Functions & Applications
- High Collector Current: Up to 5A capability supports motor driving and power amplification without secondary drivers.
- Medium Voltage Rating: 100V Vceo suitable for 12V/24V/48V industrial and automotive applications.
- TO-220 Mounting: Integrated metal tab allows secure heatsink attachment for thermal management.
- Robust Design: Proven reliability in repetitive switching and linear amplification stages.
Technical Specifications
| Parameter | Value / Specification |
|---|---|
| Transistor Type | BJT (Bipolar Junction Transistor) |
| Polarity / Channel | NPN |
| Package / Case | TO-220 |
| Collector-Emitter Voltage (Vceo) | 100V |
| Max Collector Current (Ic) | 5A |
| Mounting Type | Through-Hole (THT) with heatsink tab |
Frequently Asked Questions
Q: Is a heatsink required for the 2SD525?
A: Yes, a suitable heatsink is strongly recommended when operating at or near 5A collector current to prevent thermal runaway and ensure reliability.
Q: Can the 2SD525 directly drive a 12V motor?
A: Yes, provided the motor's running current does not exceed 5A. Always include a flyback diode across the motor terminals to protect the transistor from inductive spikes.
Notes
Requires heatsink for sustained operation above 2–3A. Check local supplier datasheets for exact thermal resistance (θJA) and safe junction temperature limits.
Note: Price refers to one (1) piece. The component is shipped in bulk without individual packaging.
- Transistor Type
- BJT (Bipolar Junction Transistor)
- Transistor Polarity / Channel
- NPN
- Transistor Case Style
- TO-220