BD438STU PNP bipolar transistor rated for 45V VCEO and 4A IC. Features 36W power dissipation and 3MHz transition frequency in a through-hole TO-126-3 package.
Mfr Part #:

BD438STU

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP bipolar transistor rated for 45V VCEO and 4A IC. Features 36W power dissipation and 3MHz transition frequency in a through-hole TO-126-3 package.
Total Stock: 1 pcs

BD438STU Available from 1 distributor

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BD438STU 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
Mounting Type
Operating Temperature
Power
Storage Temperature
Supplier Device Package
Tape & Reel
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

BD438STU Description

Short technical summary and product information.

The BD438STU is a PNP bipolar junction transistor manufactured by onsemi. It is designed for general-purpose switching and amplification applications. Key electrical specifications include a collector-emitter breakdown voltage (VCEO) of 45V, a continuous collector current (IC) of 4A, and a DC current gain (hFE) of minimum 30 at 10mA collector current and 5V VCE. The transistor has a maximum VCE saturation voltage of 600mV at 200mA base current and 2A collector current. The transition frequency (fT) is 3MHz. Power dissipation is rated at 36W. The device is housed in a TO-225AA / TO-126-3 through-hole package, with an operating junction temperature up to 150°C. This transistor is suitable for medium-power linear and switching circuits where PNP polarity is required.

BD438STU Quick Information

Product Type: Bipolar (BJT) Transistor
Series: BD438
Canonical Name: BD438STU PNP Bipolar Transistor, 45V VCEO, 4A IC, TO-126-3
Subcategory: Single PNP

BD438STU Compliance

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

BD438STU Features

  • PNP bipolar transistor with 45V VCEO.
  • Continuous collector current rating of 4A.
  • DC current gain of 30 at 10mA, 5V.
  • Maximum power dissipation of 36W.
  • Through-hole TO-126-3 package.

BD438STU Applications

  • Suitable for general-purpose switching circuits.
  • Used in linear voltage regulator designs.
  • Ideal for relay and solenoid drivers.
  • Applicable in power management modules.

BD438STU FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the BD438STU?

45V (VCEO).

What package does the BD438STU come in?

TO-225AA / TO-126-3 through-hole package.

What is the maximum operating junction temperature?

150°C.

Is the BD438STU RoHS compliant?

RoHS3 compliant (unverified).

What is the collector current rating?

4A continuous.

What is the DC current gain (hFE)?

Minimum 30 at 10mA collector current and 5V VCE.

What is the transition frequency?

3MHz.

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