BD437TG The BD437TG is an NPN bipolar junction transistor from On Semiconductor. It features a 45V collector-emitter voltage, 4A collector current, and 36W power dissipation in a TO126 through-hole package.
Mfr Part #:

BD437TG

Available from 2 distributors
Mfr Name: On Semiconductor
On Semiconductor
The BD437TG is an NPN bipolar junction transistor from On Semiconductor. It features a 45V collector-emitter voltage, 4A collector current, and 36W power dissipation in a TO126 through-hole package.
Total Stock: 9,270 pcs
$ Price Range: $0.73 - $1.54

BD437TG Available from 2 distributors

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
9,220 pcs
9220 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
50 pcs
50 pcs On Request 1 On Request On Request On Request On Request On Request

BD437TG Specifications Quick View

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

BD437TG Description

Short technical summary and product information.

The BD437TG 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. The transistor is rated for a collector-emitter voltage (Vce) of 45V and a continuous collector current (Ic) of 4A, with a maximum power dissipation of 36W.

 

Electrical characteristics include a DC current gain (hFE) of 85 minimum at 500mA collector current and 1V Vce, and a transition frequency (fT) of 3MHz. The collector-emitter saturation voltage (Vce(sat)) is 800mV maximum at a base current of 300mA and collector current of 3A. The device operates over a junction temperature range of -55°C to 150°C.

 

The BD437TG is supplied in a TO-225AA / TO-126-3 through-hole package, with a supplier device package of TO-126. It is suitable for through-hole mounting on printed circuit boards. The part is listed as RoHS3 compliant and REACH unaffected, though these compliance statuses are unverified.

BD437TG Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Series: BD437
Canonical Name: BD437TG NPN Bipolar Transistor
Subcategory: Single BJT

BD437TG Compliance

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

BD437TG Estimated Pricing

Qty Low High
1+ $1.54 $1.54
10+ $0.73 $0.73

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

BD437TG Features

  • NPN bipolar junction transistor design.
  • Rated for 45V collector-emitter voltage.
  • Supports 4A continuous collector current.
  • Dissipates up to 36W of power.
  • Through-hole TO126 package for mounting.

BD437TG Applications

  • Used in general-purpose switching circuits.
  • Suitable for linear amplification stages.
  • Ideal for medium-power driver applications.
  • Applicable in power management modules.
  • Works in industrial control systems.

BD437TG FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the BD437TG?

The BD437TG has a collector-emitter voltage (Vce) rating of 45V.

What is the maximum collector current for the BD437TG?

The maximum continuous collector current (Ic) is 4A.

What is the power dissipation of the BD437TG?

The maximum power dissipation (Pd) is 36W.

What package type does the BD437TG use?

The BD437TG 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 BD437TG?

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

What is the DC current gain (hFE) of the BD437TG?

The minimum DC current gain (hFE) is 85 at a test condition of Ic=500mA and Vce=1V.

What is the transition frequency of the BD437TG?

The transition frequency (fT) is 3 MHz.

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