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BC557BTAR is listed in the Single Bipolar Transistors range at ChipApex. The manufacturer field lists onsemi. Its product description is TRANS PNP 45V 0.1A TO-92-3. Review the specifications below when checking this part for your BOM.
The BC557BTAR is a PNP silicon epitaxial planar transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. It operates within a collector-emitter voltage of 45 V and supports a continuous collector current of 100 mA. The device features a DC current gain (hFE) range of 200 to 450 at specified test conditions, with a transition frequency of 150 MHz. Power dissipation is rated at 500 mW, and the maximum operating junction temperature reaches +150°C. It is housed in a TO-92-3 kinked lead package suitable for through-hole mounting.
Verify the specific suffix 'R' indicates tape and reel packaging when sourcing. Confirm RoHS compliance status via the official datasheet as manufacturing processes evolve. Check for end-of-life notices or production change notifications from onsemi to ensure long-term availability. Validate that the received component matches the BC557BTAR designation exactly to avoid confusion with cut-tape variants.
Select this component when a PNP transistor with moderate gain and low current handling is required for through-hole designs. Compare hFE binning requirements against circuit sensitivity. Ensure thermal management strategies account for the 500 mW power dissipation limit in enclosed environments. Verify voltage ratings align with the specific application's peak transient requirements.
This part belongs to the BC557 series of general-purpose PNP transistors produced by onsemi. It serves as a complement to NPN devices like the BC547. The series is widely used in consumer electronics and industrial control systems requiring reliable small-signal performance. The BTAR variant specifically denotes the reel packaging format for automated assembly processes.
The maximum collector-emitter voltage (VCEO) is 45 V.
No, it is designed for through-hole mounting using a TO-92-3 package with kinked leads.
The DC current gain (hFE) typically ranges from 200 to 450 under standard test conditions.
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