BDW47 – MOTOROLA
Part Number:
BDW47
Manufacturer:
Date Code:
06
RoHS:
Non-RoHS
MSL:
1
COO:
CHINA
Description:
PNP Darlington Transistor, 100 V, 15 A, TO‑220 Package
Datasheet:
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Product Details:
Overview
The onsemi BDW47 is a high-current PNP Darlington transistor designed for robust power switching applications. Its key characteristic is the exceptionally high DC current gain (hFE) of 1000 minimum at 5A, enabling significant current amplification from a minimal base drive. A critical design consideration when utilizing such high-gain devices is managing the Vce(sat) of 3V at 10A, which can lead to substantial power dissipation and thermal stress if not adequately addressed through heatsinking and careful current limiting, especially in continuous operation.
Key Features
- Collector Current (Ic): 15 A
- Collector-Emitter Voltage (Vceo): 100 V
- DC Current Gain (hFE): 1000 (Min) @ 5A, 4V
- Power Dissipation (Pd): 85 W
- Transition Frequency (fT): 4 MHz
- Package: TO-220-3 (Through Hole)
Applications
The component is engineered for deployment in systems requiring high reliability and performance under specific operating conditions. It provides functional stability across the stated design envelope.
- Low-frequency power amplification in audio output stages.
- High-current relay driving and solenoid actuation.
- Linear voltage regulation circuits requiring substantial current sourcing.
- Motor speed control in DC power applications.
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