BD441 The BD441 is an NPN bipolar junction transistor from On Semiconductor, rated for 80V collector-emitter voltage and 4A collector current. It features a maximum power dissipation of 36W and comes in a TO-126 through-hole package.
Mfr Part #:

BD441

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The BD441 is an NPN bipolar junction transistor from On Semiconductor, rated for 80V collector-emitter voltage and 4A collector current. It features a maximum power dissipation of 36W and comes in a TO-126 through-hole package.
Total Stock: 17 pcs
$ Price Range: $0.18

BD441 Available from 1 distributor

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BD441 Specifications Quick View

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

BD441 Description

Short technical summary and product information.

The BD441 is an NPN bipolar junction transistor manufactured by On Semiconductor. It is designed for general-purpose switching and amplification applications requiring moderate voltage and current handling.

 

Key electrical specifications include a maximum collector-emitter breakdown voltage of 80V, a continuous collector current rating of 4A, and a maximum power dissipation of 36W. The transistor exhibits a minimum DC current gain (hFE) of 40 at 500mA collector current and 1V collector-emitter voltage, and a typical transition frequency of 3MHz. The maximum collector-emitter saturation voltage is 800mV at a base current of 300mA and collector current of 3A.

 

The BD441 is offered in a through-hole TO-126 package (also compatible with TO-225AA and TO-126-3 case styles). It supports an operating junction temperature range of -55°C to 150°C. Environmental compliance is reported as RoHS3 compliant, MSL Level 1, and REACH unaffected, though these statuses are unverified in the available data.

BD441 Quick Information

Product Type: Transistor - Bipolar (BJT) - Single
Canonical Name: BD441 NPN Bipolar Junction Transistor
Subcategory: Single NPN

BD441 Compliance

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

BD441 Estimated Pricing

Qty Low High
6,000+ $0.18 $0.18

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

BD441 Features

  • NPN bipolar junction transistor for switching and amplification.
  • 80V maximum collector-emitter breakdown voltage.
  • 4A continuous collector current rating.
  • 36W maximum power dissipation capability.
  • Through-hole TO-126 package for easy mounting.

BD441 Applications

  • Use in general-purpose switching circuits.
  • Suitable for linear amplification up to 3MHz.
  • Employed in power management and regulator stages.
  • Ideal for motor and relay driver circuits.

BD441 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the BD441?

80 V.

What package does the BD441 come in?

Through-hole TO-225AA, TO-126-3; supplier device package TO-126.

What is the operating temperature range of the BD441?

-55°C to 150°C (junction).

Is the BD441 RoHS compliant?

Listed as RoHS3 compliant, but status is unverified with low confidence.

What is the DC current gain (hFE) of the BD441?

Minimum 40 at Ic=500mA, Vce=1V.

What is the maximum collector current rating?

4 A maximum.

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