BD439 BD439 is an NPN bipolar transistor from On Semiconductor with 60V collector-emitter voltage and 4A collector current. It comes in a TO-126 through-hole package.
Mfr Part #:

BD439

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
BD439 is an NPN bipolar transistor from On Semiconductor with 60V collector-emitter voltage and 4A collector current. It comes in a TO-126 through-hole package.
Total Stock: 10 pcs
$ Price Range: $0.28

BD439 Available from 1 distributor

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BD439 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

BD439 Description

Short technical summary and product information.

The BD439 is an NPN bipolar junction transistor manufactured by On Semiconductor. It features a maximum collector-emitter voltage of 60V, a maximum collector current of 4A, and a power dissipation of 36W. The DC current gain (hFE) is a minimum of 40 at a test condition of Ic=500mA, Vce=1V. The collector-emitter saturation voltage is a maximum of 800mV at Ib=300mA, Ic=3A. The transition frequency is 3 MHz.

 

The transistor is housed in a through-hole TO-225AA/TO-126-3 package, with the supplier device package designated as TO-126. It operates over a junction temperature range of -55°C to 150°C. The BD439 is listed as RoHS3 compliant, REACH unaffected, and has an MSL rating of 1 (unlimited). This device is suitable for general-purpose switching and amplification applications.

BD439 Quick Information

Product Type: Bipolar Transistor - Single
Canonical Name: BD439 - NPN Bipolar Transistor, 60V Vce, 4A Ic, TO-126
Subcategory: NPN

BD439 Compliance

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

BD439 Estimated Pricing

Qty Low High
2,000+ $0.28 $0.28

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

BD439 Features

  • NPN transistor with 60V collector-emitter voltage.
  • Maximum collector current of 4A.
  • Power dissipation up to 36W.
  • Comes in through-hole TO-126 package.
  • Operating temperature range from -55°C to 150°C.

BD439 Applications

  • Suitable for general-purpose switching circuits.
  • Used in audio amplification stages.
  • Ideal for power management applications.

BD439 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BD439?

The maximum collector-emitter voltage is 60V.

What package does the BD439 come in?

The BD439 is available in a TO-225AA/TO-126-3 through-hole package, with a supplier device package of TO-126.

What is the operating temperature range of the BD439?

The operating temperature range is -55°C to 150°C (junction temperature).

Is the BD439 RoHS compliant?

Yes, the BD439 is listed as RoHS3 compliant.

What is the maximum collector current of the BD439?

The maximum collector current is 4A.

What is the power dissipation of the BD439?

The power dissipation is 36W.

What is the DC current gain (hFE) of the BD439?

The minimum DC current gain is 40 at Ic=500mA, Vce=1V.

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