BUL741 BUL741 is an NPN bipolar transistor from STMicroelectronics with maximum ratings of 400V Vce, 2.5A collector current, and 60W power dissipation in a TO-220-3 through-hole package.
Mfr Part #:

BUL741

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
BUL741 is an NPN bipolar transistor from STMicroelectronics with maximum ratings of 400V Vce, 2.5A collector current, and 60W power dissipation in a TO-220-3 through-hole package.
Total Stock: 1,356 pcs
$ Price Range: $0.34 - $1.58

BUL741 Available from 1 distributor

Authorised
Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Non-Authorised Inventory information
1,356 pcs
1356 pcs On Request 1 On Request On Request 10+ On Request On Request

BUL741 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

BUL741 Description

Short technical summary and product information.

The BUL741 is an NPN bipolar junction transistor designed for general-purpose switching and amplification applications. It features a maximum collector-emitter voltage of 400V and a maximum continuous collector current of 2.5A, making it suitable for medium-power circuits.

 

With a maximum power dissipation of 60W and a junction temperature rating up to 150°C, the BUL741 can handle moderately demanding thermal environments. The minimum DC current gain (hFE) is 25 at 450mA and 3V, and the maximum collector-emitter saturation voltage is 1.5V at 600mA base current and 2A collector current.

 

The transistor is housed in a TO-220-3 through-hole package (supplier device package TO-220), which offers straightforward mounting on printed circuit boards and effective heat sinking. This package is common in power electronics and provides good thermal dissipation capabilities when used with an appropriate heatsink.

BUL741 Quick Information

Product Type: NPN Bipolar Transistor
Canonical Name: BUL741 NPN Bipolar Transistor
Subcategory: Single BJT

BUL741 Compliance

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

BUL741 Estimated Pricing

Qty Low High
1+ $1.58 $1.58
10+ $0.70 $0.70
100+ $0.50 $0.50
500+ $0.43 $0.43
1,000+ $0.36 $0.36
2,000+ $0.34 $0.34
5,000+ $0.34 $0.34

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

BUL741 Features

  • NPN bipolar transistor for switching.
  • Maximum 400V collector-emitter voltage.
  • 2.5A continuous collector current rating.
  • 60W maximum power dissipation capability.
  • TO-220-3 through-hole package.

BUL741 Applications

  • Medium-voltage DC-DC converter circuits.
  • Motor and solenoid driver stages.
  • Power supply switching and regulation.
  • General-purpose linear amplifier designs.

BUL741 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage of the BUL741?

The maximum collector-emitter voltage is 400 V.

What is the maximum collector current of the BUL741?

The maximum collector current is 2.5 A.

What package does the BUL741 use?

It uses a TO-220-3 through-hole package (supplier device package TO-220).

What is the maximum power dissipation of the BUL741?

The maximum power dissipation is 60 W.

What is the maximum junction temperature for the BUL741?

The maximum junction temperature is 150 °C.

What is the DC current gain (hFE) of the BUL741?

The minimum DC current gain (hFE) is 25, measured at Ic=450 mA and Vce=3 V.

What is the saturation voltage of the BUL741?

The maximum collector-emitter saturation voltage is 1.5 V at Ib=600 mA and Ic=2 A.

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