BULD742CT4 NPN bipolar junction transistor from STMicroelectronics rated for 400V collector-emitter voltage and 4A continuous collector current in a DPAK surface mount package.
Mfr Part #:

BULD742CT4

Available from 2 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
NPN bipolar junction transistor from STMicroelectronics rated for 400V collector-emitter voltage and 4A continuous collector current in a DPAK surface mount package.
Total Stock: 7,097 pcs
$ Price Range: $0.37 - $1.64

BULD742CT4 Available from 2 distributors

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
6,020 pcs
6020 pcs On Request 1 On Request On Request On Request On Request On Request
Non-Authorised Inventory information
1,077 pcs
1077 pcs On Request 1 On Request On Request On Request On Request On Request

BULD742CT4 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

BULD742CT4 Description

Short technical summary and product information.

The STMicroelectronics BULD742CT4 is an NPN bipolar junction transistor designed for high voltage switching applications. It features a collector-emitter voltage rating of 400V and a continuous collector current capacity of 4A, making it suitable for power control circuits.

 

Key electrical characteristics include a power dissipation of 45W, a DC current gain of 25 minimum at 800mA collector current and 3V Vce, and a collector-emitter saturation voltage of 1.5V maximum at 1A base current and 3.5A collector current. The junction temperature rating is 150°C.

 

The device is offered in a surface mount DPAK (TO-252) package, which provides a compact footprint for automated assembly. The package is also compatible with the DPak (2 Leads + Tab) and SC-63 industry standards.

BULD742CT4 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: STMicroelectronics BULD742CT4 NPN Bipolar Transistor
Subcategory: High Voltage Switching Transistor

BULD742CT4 Compliance

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

BULD742CT4 Estimated Pricing

Qty Low High
1+ $1.64 $1.64
10+ $1.04 $1.04
100+ $0.69 $0.69
500+ $0.54 $0.54
1,000+ $0.49 $0.49
2,500+ $0.44 $0.44
10,000+ $0.37 $0.37

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

BULD742CT4 Features

  • NPN bipolar transistor for switching applications.
  • Collector-emitter voltage rating of 400V.
  • Continuous collector current capability of 4A.
  • Power dissipation rating of 45W.
  • Surface mount DPAK package for compact designs.

BULD742CT4 Applications

  • High voltage switching power supplies.
  • Motor control and driver circuits.
  • Inverter and converter stages.
  • General purpose power switching.

BULD742CT4 FAQs

5 frequently asked questions generated from this part’s specifications.
What is the collector-emitter voltage rating of the BULD742CT4?

The collector-emitter voltage (Vce) is 400V.

What is the package type for the BULD742CT4?

The device is offered in a surface mount DPAK (TO-252) package, also referred to as DPak (2 Leads + Tab) or SC-63.

What is the maximum junction temperature?

The maximum junction temperature (TJ) is 150°C.

Is the BULD742CT4 RoHS compliant?

The part is reported as RoHS3 Compliant, though this compliance is unverified.

What is the DC current gain (hFE) of this transistor?

Minimum DC current gain (hFE) is 25 at Ic=800mA and Vce=3V.

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