BUL38D The BUL38D is an NPN bipolar junction transistor from STMicroelectronics. It features a 450V collector-emitter breakdown voltage, 5A collector current, and 80W power dissipation in a TO-220 package.
Mfr Part #:

BUL38D

Available from 3 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The BUL38D is an NPN bipolar junction transistor from STMicroelectronics. It features a 450V collector-emitter breakdown voltage, 5A collector current, and 80W power dissipation in a TO-220 package.
✓ Total Stock: 10,670 pcs
$ Price Range: $0.49 - $1.99

BUL38D Available from 3 distributors

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
4,930 pcs
4930 pcs On Request 1 On Request On Request 21+ On Request On Request
Non-Authorised Inventory information
4,400 pcs
4400 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,340 pcs
1340 pcs On Request 1 On Request On Request 924 On Request On Request

BUL38D Specifications Quick View

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

BUL38D Description

Short technical summary and product information.

The BUL38D is an NPN bipolar junction transistor manufactured by STMicroelectronics. It is designed for general-purpose switching and linear amplification applications requiring high voltage and moderate current handling.

 

Key electrical specifications include a collector-emitter breakdown voltage (VCEO) of 450V, a continuous collector current (IC) rating of 5A, and a power dissipation (Pd) of 80W. The DC current gain (hFE) is a minimum of 10 at Ic=10mA and Vce=5V, and the collector-emitter saturation voltage (Vce(sat)) is a maximum of 1.1V at Ib=750mA and Ic=3A.

 

The transistor is housed in a TO-220-3 through-hole package, which provides good thermal performance. The maximum operating junction temperature (Tj) is 150°C. The device is RoHS3 compliant and has an MSL of Level 1 (unlimited).

 

Typical applications include power supply circuits, motor control drivers, and high-voltage inverters where the combination of 450V breakdown and 5A current capability is required.

BUL38D Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: BUL38D NPN Bipolar Transistor
Subcategory: Single BJT

BUL38D Compliance

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

BUL38D Estimated Pricing

Qty Low High
1+ $1.99 $1.99
10+ $0.96 $0.96
100+ $0.85 $0.85
500+ $0.70 $0.70
1,000+ $0.57 $0.57
2,500+ $0.54 $0.54
5,000+ $0.52 $0.52
10,000+ $0.49 $0.49

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

BUL38D Features

  • NPN bipolar junction transistor design.
  • 450V collector-emitter breakdown voltage.
  • 5A continuous collector current rating.
  • 80W power dissipation capability.
  • TO-220 through-hole package.

BUL38D Applications

  • Suitable for switching and linear applications.
  • Used in power supply circuits.
  • Ideal for motor control drivers.
  • Applicable in high-voltage inverters.

BUL38D FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter breakdown voltage of the BUL38D?

The collector-emitter breakdown voltage (VCEO) is 450V.

What is the maximum collector current?

The maximum continuous collector current (IC) is 5A.

What is the power dissipation rating?

The power dissipation (Pd) is 80W.

What is the package type?

The package is TO-220-3 (through-hole).

What is the maximum operating junction temperature?

The maximum operating junction temperature (Tj) is 150°C.

What is the DC current gain (hFE)?

The minimum DC current gain (hFE) is 10 at Ic=10mA and Vce=5V.

Is the BUL38D RoHS compliant?

The RoHS status is listed as RoHS3 Compliant, but this data is unverified.

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