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BD681STU NPN Darlington transistor rated for 100V collector-emitter breakdown voltage and 4A collector current. Offers 40W power dissipation and minimum DC current gain of 750 at 1.5A.
Mfr Part #:

BD681STU

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
NPN Darlington transistor rated for 100V collector-emitter breakdown voltage and 4A collector current. Offers 40W power dissipation and minimum DC current gain of 750 at 1.5A.
✓ Total Stock: 38,400 pcs
$ Price Range: $0.17

BD681STU Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Flip Electronics ✓
Non-Authorised Inventory information
38,400 pcs
On Request
38400 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

BD681STU Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
Mounting Type
Number of Pins
Operating Temperature
Power
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage
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BD681STU Description

Short technical summary and product information.

The BD681STU is an NPN Darlington transistor from On Semiconductor. It features a collector-emitter breakdown voltage (VCEO) of 100V and a collector current (IC) rating of 4A, with a power dissipation of 40W. The DC current gain (hFE) is minimum 750 at a test condition of Ic=1.5A, Vce=3V. The collector-emitter saturation voltage (Vce(sat)) is maximum 2.5V at Ib=30mA, Ic=1.5A. The maximum junction temperature (Tj) is 150°C.

 

This transistor is housed in a TO-225AA / TO-126-3 package and is designed for through-hole mounting with 3 pins. It is suitable for general-purpose switching and amplification applications requiring high current gain. The device is marked as RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified.

BD681STU Quick Information

Product Type: Darlington Transistor
Canonical Name: BD681STU NPN Darlington Transistor
Subcategory: NPN

BD681STU Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

BD681STU Estimated Pricing

Qty Low High
3,840+ $0.17 $0.17

Estimated market price range - modelled values for guidance only, not live distributor offers.

BD681STU Features

  • NPN Darlington transistor configuration.
  • 100V collector-emitter breakdown voltage.
  • 4A collector current rating.
  • 40W power dissipation capability.
  • Minimum DC current gain of 750.

BD681STU Applications

  • Used in power switching circuits.
  • Suitable for motor control circuits.
  • Drives relays and solenoids.
  • Amplifier output stage driver.
  • Voltage regulation circuits.

BD681STU FAQs

6 frequently asked questions generated from this part’s specifications.
What is the collector-emitter breakdown voltage of the BD681STU?

100V

What is the collector current rating?

4A

What is the power dissipation?

40W

What is the package type?

TO-225AA / TO-126-3

What is the maximum junction temperature?

150°C

Is the BD681STU RoHS compliant?

RoHS3 compliant (unverified)

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