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The BSP43 is an NPN silicon planar medium power transistor manufactured by Nexperia. It is designed for general-purpose applications and comes in a SOT-223 package.
Key electrical characteristics include a Collector-Emitter Voltage (VCEO) of up to 80V and a Continuous Collector Current (IC) of up to 1A. The device also offers a Peak Pulse Current (ICM) of 2A and a maximum power dissipation of 2W at 25°C ambient temperature. The operating and storage temperature range is from -55°C to +150°C.
Electrical specifications include a Collector-Emitter Saturation Voltage (VCE(sat)) of 0.25V at 150mA/15mA and 0.5V at 500mA/50mA. The Static Forward Current Transfer Ratio (hFE) ranges from 30 to 300 depending on the operating conditions. Capacitance values are 12pF for Collector Capacitance (Cc) and 90pF for Emitter Capacitance (Ce).
This part is marked as obsolete, with recommended replacements being FZT491 or FZT493. It is important to note that this part is no longer recommended for new designs.
| Qty | Low | High |
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| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The maximum Collector-Emitter Voltage (VCEO) for the BSP43 is 80V.
The continuous collector current (IC) rating for the BSP43 is 1A.
The operating and storage temperature range for the BSP43 is -55°C to +150°C.
The BSP43 transistor is supplied in a SOT-223 package.
The recommended replacement parts for the obsolete BSP43 are FZT491 and FZT493.