FSB749 PNP bipolar transistor by ON Semiconductor, rated for 25V collector-emitter voltage and 3A collector current. Suitable for surface-mount applications in SOT-23-3 package.
Mfr Part #:

FSB749

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
PNP bipolar transistor by ON Semiconductor, rated for 25V collector-emitter voltage and 3A collector current. Suitable for surface-mount applications in SOT-23-3 package.
Total Stock: 4,060 pcs
$ Price Range: $0.10 - $0.65

FSB749 Available from 1 distributor

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FSB749 Specifications Quick View

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

FSB749 Description

Short technical summary and product information.

The FSB749 is a PNP bipolar junction transistor (BJT) manufactured by ON Semiconductor. It is designed for general-purpose switching and amplification applications requiring a surface-mount package.

 

Key electrical specifications include a collector-emitter breakdown voltage of 25 V, a maximum collector current of 3 A, and a transition frequency of 100 MHz. The DC current gain (hFE) is minimum 100 at Ic=1A, Vce=2V, and the saturation voltage is 600 mV maximum at Ib=300mA, Ic=3A.

 

The device is housed in a TO-236-3 / SC-59 / SOT-23-3 surface-mount package, with a supplier device package of SOT-23-3. It can operate over a junction temperature range of -55°C to 150°C and has a maximum power dissipation of 500 mW.

 

This transistor is suitable for use in low-power switching circuits, signal amplification, and driver stages where PNP polarity is required. The surface-mount package enables compact PCB layouts.

FSB749 Quick Information

Product Type: Bipolar Junction Transistor (BJT)
Canonical Name: FSB749 PNP Bipolar Transistor 25V 3A
Subcategory: Single

FSB749 Compliance

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

FSB749 Estimated Pricing

Qty Low High
1+ $0.65 $0.65
10+ $0.40 $0.40
4,060+ $0.10 $0.10

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

FSB749 Features

  • PNP silicon transistor for switching and amplification.
  • Rated for 25V collector-emitter voltage.
  • Maximum collector current of 3A.
  • Transition frequency of 100MHz.
  • Surface-mount SOT-23-3 package.

FSB749 Applications

  • General-purpose low-power switching circuits.
  • Signal amplification in audio stages.
  • Driver for small loads and relays.
  • Used in portable electronics and IoT devices.

FSB749 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the collector-emitter breakdown voltage of the FSB749?

25 V.

What package is the FSB749 available in?

SOT-23-3 (also TO-236-3, SC-59).

What is the operating temperature range of the FSB749?

-55°C to 150°C (junction temperature).

Is the FSB749 RoHS compliant?

RoHS3 Compliant (unverified).

What is the maximum collector current of the FSB749?

3 A.

What is the transition frequency of the FSB749?

100 MHz.

What is the DC current gain (hFE) of the FSB749?

Minimum 100 at Ic=1A, Vce=2V.

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