BC557BU

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Part Number	BC557BU
Manufacturer	onsemi
Category	Discrete Semiconductor › Transistors - Bipolar (BJT) - Single
Description	TRANS PNP 45V 0.1A TO92-3
Lifecycle	Active
RoHS	No RoHS Information
EDA/CAD Models	BC557BU PCB Footprint and Symbol
Warehouses	USA, Europe, China, Hong Kong SAR
Estimated Delivery	Dec 12 - Dec 16 2025(Choose Expedited Shipping)
Warranty	Up to 1 year [Limited-Warranty]*
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BC557BU Specifications

Part Number:	BC557BU
Brand:	onsemi
Lifecycle:	Active
RoHS:	Lead free / RoHS Compliant
Category:	Discrete Semiconductor
Subcategory:	Transistors - Bipolar (BJT) - Single
Manufacturer:	onsemi
Product Status:	Obsolete
Transistor Type:	PNP
Current - Collector (Ic) (Max):	100 mA
Voltage - Collector Emitter Breakdown (Max):	45 V
Vce Saturation (Max) @ Ib, Ic:	650mV @ 5mA, 100mA
Current - Collector Cutoff (Max):	15nA (ICBO)
DC Current Gain (hFE) (Min) @ Ic, Vce:	110 @ 2mA, 5V
Power - Max:	500 mW
Frequency - Transition:	150MHz
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA)
Supplier Device Package:	TO-92-3

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