BD681S

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Part Number	BD681S
Manufacturer	Linear Technology
Category	Discrete Semiconductor › Transistors - Bipolar (BJT) - Single
Description	TRANS NPN DARL 100V 4A TO126-3
Lifecycle	Active
RoHS	No RoHS Information
EDA/CAD Models	BD681S PCB Footprint and Symbol
Warehouses	USA, Europe, China, Hong Kong SAR
Estimated Delivery	Dec 15 - Dec 19 2025(Choose Expedited Shipping)
Warranty	Up to 1 year [Limited-Warranty]*
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BD681S Specifications

Part Number:	BD681S
Brand:	Linear Technology
Lifecycle:	Active
RoHS:	Lead free / RoHS Compliant
Category:	Discrete Semiconductor
Subcategory:	Transistors - Bipolar (BJT) - Single
Manufacturer:	Linear Technology
Product Status:	Active
Transistor Type:	NPN - Darlington
Current - Collector (Ic) (Max):	4 A
Voltage - Collector Emitter Breakdown (Max):	100 V
Vce Saturation (Max) @ Ib, Ic:	2.5V @ 30mA, 1.5A
Current - Collector Cutoff (Max):	500µA
DC Current Gain (hFE) (Min) @ Ic, Vce:	750 @ 1.5A, 3V
Power - Max:	40 W
Frequency - Transition:	-
Operating Temperature:	150°C (TJ)
Mounting Type:	Through Hole
Package / Case:	TO-225AA, TO-126-3
Supplier Device Package:	TO-126-3

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