BD442 BD442 is a PNP power transistor rated for 80V collector-emitter voltage and 4A continuous collector current. It is housed in a through-hole TO-126 package.
Mfr Part #:

BD442

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
BD442 is a PNP power transistor rated for 80V collector-emitter voltage and 4A continuous collector current. It is housed in a through-hole TO-126 package.
Total Stock: 2 pcs
$ Price Range: $0.21 - $0.28

BD442 Available from 1 distributor

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BD442 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base Current (IB)
Base-Emitter Voltage (Vbe(on)) (Maximum @ Ic=-2 A, Vce=-1 V)
Base-Emitter Voltage (Vbe(on)) (Typical @ Ic=-10 mA, Vce=-5 V)
Collector Cut-off Current (ICBO)
Collector-Base Voltage (VCBO)
Collector-Emitter Sustaining Voltage (Vce(sus))
Current
DC Current Gain (hFE) (Min) @ Ic, Vce
DC Current Gain (hFE) (Minimum @ Ic=-2 A, Vce=-1 V)
DC Current Gain (hFE) (Minimum/Typical @ Ic=-10 mA, Vce=-5 V)
DC Current Gain (hFE) (Typical @ Ic=-500 mA, Vce=-1 V)
Emitter Cut-off Current (IEBO)
Emitter-Base Voltage (VEBO)
Frequency
Junction Temperature (TJ)
Lead Spacing
Medical Grade
Mounting Type
Operating Temperature
Package / Case (Alternate)
Packaging Type
Peak Collector Current (ICM)
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) (Maximum @ Ib=-0.2 A, Ic=-2 A)
Vce Saturation (Max) @ Ib, Ic
Voltage

BD442 Description

Short technical summary and product information.

The BD442 is a PNP power transistor manufactured by On Semiconductor, designed for linear and switching industrial equipment. It offers a collector-emitter breakdown voltage of 80V, continuous collector current of 4A, and peak collector current of 7A. Power dissipation is 36W at case temperature 25°C. The transistor features a DC current gain (hFE) of 40 minimum at 500mA, 1V, and a typical gain of 140 at the same condition. Vce saturation is 0.8V maximum at 2A collector current and 0.2A base current. The device is available in a TO-126 through-hole package (also referred to as TO-225AA or SOT-32) and is supplied in tube packaging. The operating junction temperature range is -55°C to 150°C. This transistor is suitable for applications requiring medium power amplification and switching.

BD442 Quick Information

Product Type: Bipolar Junction Transistor (BJT) - Single
Canonical Name: BD442 PNP Power Transistor
Subcategory: Bipolar Junction Transistor (BJT)

BD442 Compliance

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

BD442 Estimated Pricing

Qty Low High
1,397+ $0.21 $0.21
2,000+ $0.28 $0.28

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

BD442 Features

  • PNP bipolar junction transistor.
  • Rated for 80V collector-emitter voltage.
  • Supports up to 4A continuous collector current.
  • 36W power dissipation capability.
  • Through-hole TO-126 package.

BD442 Applications

  • Used in linear power supply circuits.
  • Suitable for switching industrial equipment.
  • Ideal for general purpose amplifier stages.
  • Can be used in motor control drivers.

BD442 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter breakdown voltage of the BD442?

The collector-emitter breakdown voltage (Vceo) is 80V.

What is the maximum collector current?

The maximum continuous collector current is 4A, with a peak current of 7A.

What package type is the BD442 available in?

The BD442 is available in a TO-126 through-hole package, also known as TO-225AA or SOT-32.

What is the operating temperature range?

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

Is the BD442 RoHS compliant?

RoHS status is conflicting: Mouser reports RoHS3 compliant, while DigiKey reports non-compliant. Verification with the manufacturer is recommended.

What is the DC current gain (hFE) of the BD442?

The minimum hFE is 40 at Ic=500mA, Vce=1V, with typical gain of 140 at the same condition.

What is the saturation voltage of the BD442?

The collector-emitter saturation voltage (Vce(sat)) is 0.8V maximum at Ic=2A, Ib=0.2A.

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