STW3040 The STMicroelectronics STW3040 is an NPN bipolar junction transistor designed for high-power applications. It offers a 400V breakdown voltage and a 30A continuous current capability.
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STW3040

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics STW3040 is an NPN bipolar junction transistor designed for high-power applications. It offers a 400V breakdown voltage and a 30A continuous current capability.
Total Stock: 735 pcs
$ Price Range: $0.51

STW3040 Available from 1 distributor

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735 pcs
735 pcs On Request 1 On Request On Request 11+ On Request On Request

STW3040 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
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

STW3040 Description

Short technical summary and product information.

The STMicroelectronics STW3040 is a high-performance NPN bipolar junction transistor (BJT) suitable for demanding applications. It features a maximum collector-emitter voltage (Vce) of 400V and can handle a continuous collector current (Ic) of up to 30A, with a power dissipation rating of 160W. The transistor operates at junction temperatures up to 150°C.

 

Designed for through-hole mounting, the STW3040 comes in a TO-247-3 package. Its key electrical characteristics include a minimum DC current gain (hFE) of 18 at 6A and 5V, and a Vce saturation voltage of 800mV maximum at 4A and 20A. These specifications make it suitable for power switching and amplification circuits where robust performance is required.

 

This component is RoHS3 compliant and has an MSL rating of 1 Unlimited, indicating its suitability for a wide range of manufacturing environments. The REACH status is unaffected.

STW3040 Quick Information

Product Type: Transistor
Canonical Name: STMicroelectronics STW3040 NPN 400V 30A Transistor
Subcategory: Single

STW3040 Compliance

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

STW3040 Estimated Pricing

Qty Low High
1+ $0.51 $0.51

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

STW3040 Features

  • NPN bipolar junction transistor.
  • 400V collector-emitter voltage rating.
  • 30A continuous collector current.
  • 160W power dissipation.
  • TO-247-3 through-hole package.

STW3040 Applications

  • High-power switching applications.
  • Power supply circuits.
  • Motor control systems.
  • Industrial automation equipment.

STW3040 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum operating voltage for the STW3040 transistor?

The STW3040 transistor has a maximum operating voltage of 400V.

What is the maximum continuous current the STW3040 can handle?

The STW3040 can handle a maximum continuous current of 30A.

What is the power dissipation rating of the STW3040?

The STW3040 has a power dissipation rating of 160W.

What is the operating temperature range for the STW3040?

The STW3040 operates at junction temperatures up to 150°C.

What is the package type for the STW3040 transistor?

The STW3040 is supplied in a TO-247-3 package.

How is the STW3040 transistor mounted?

The STW3040 transistor is designed for through-hole mounting.

What is the minimum DC current gain (hFE) of the STW3040?

The minimum DC current gain (hFE) for the STW3040 is 18 at Ic=6A and Vce=5V.

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