MMBT4124 The MMBT4124 is an NPN bipolar junction transistor from ON Semiconductor designed for general purpose amplification and switching. It offers a 25V collector-emitter voltage and 200mA continuous collector current.
Mfr Part #:

MMBT4124

Available from 1 distributors
Mfr Name: On Semiconductor
On Semiconductor
The MMBT4124 is an NPN bipolar junction transistor from ON Semiconductor designed for general purpose amplification and switching. It offers a 25V collector-emitter voltage and 200mA continuous collector current.
Total Stock: 110 pcs
$ Price Range: $0.99

MMBT4124 Available from 1 distributor

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MMBT4124 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Base - Emitter Saturation Voltage
Breakdown Voltage (Minimum @ IC = 10 µA, IC = 0)
Breakdown Voltage (Minimum @ IC = 10 µA, IE = 0)
Breakdown Voltage (Minimum @ IC=1.0 mA, IB=0)
Current
Current-Gain - Bandwidth Product
DC Current Gain (Minimum/Maximum @ IC = 50 mA, VCE = 1.0 V)
DC Current Gain (hFE) (Min) @ Ic, Vce
Frequency
Input Capacitance
Leakage Current (Maximum @ V CB = 20 V, IE = 0)
Leakage Current (Maximum @ V EB = 3.0 V, IC = 0)
Mounting Type
Noise Figure
Operating Temperature
Output Capacitance (Maximum @ V CB = 5.0 V, IE = 0, f = 100 kHz)
Power
Small Signal Current Gain (Minimum/Maximum @ V CE = 10 V, IC = 2.0 mA, f = 1.0 kHz)
Supplier Device Package
Supplier Package
Total Device Dissipation
Transistor Type
Vce Saturation (Max) @ Ib, Ic
Voltage

MMBT4124 Description

Short technical summary and product information.

The MMBT4124 is an NPN bipolar junction transistor (BJT) manufactured by ON Semiconductor, suitable for general purpose amplifier and switch applications. It features a collector-emitter voltage of 25V and a continuous collector current of 200mA.

 

This transistor operates with a DC current gain (hFE) of at least 120 at 2mA collector current and 1V VCE. Its saturation voltage (VCE(sat)) is a maximum of 300mV at 5mA base current and 50mA collector current. The gain-bandwidth product (fT) reaches 300MHz at 10mA collector current and 20V VCE.

 

Packaged in a surface-mount SOT-23-3 (TO-236-3, SC-59) case, the MMBT4124 is designed for ease of integration into printed circuit boards. It has a total power dissipation of 350mW at 25°C ambient temperature and an operating temperature range of -55°C to 150°C.

 

Key electrical characteristics include a collector-base breakdown voltage of 30V and an emitter-base breakdown voltage of 5.0V. Leakage currents (ICBO and IEBO) are specified at a maximum of 50nA. The transistor also exhibits small-signal current gain (hfe) between 120 and 480 at 2mA collector current and 10V VCE, with input capacitance (Cibo) at 8pF and output capacitance (Cobo) at 4pF.

MMBT4124 Quick Information

Product Type: NPN Transistor
Series: MMBT4124
Canonical Name: MMBT4124 NPN General Purpose Amplifier
Subcategory: Single

MMBT4124 Compliance

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

MMBT4124 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

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

MMBT4124 Features

  • NPN general purpose amplifier and switch.
  • 25V collector-emitter voltage rating.
  • 200mA continuous collector current.
  • 300MHz gain-bandwidth product.
  • Surface mount SOT-23-3 package.

MMBT4124 Applications

  • Suitable for switching and amplification tasks.
  • Used in low-voltage signal switching circuits.
  • Ideal for general-purpose amplifier applications.
  • Applicable in high-temperature environments up to 150°C.
  • Suitable for small-signal amplification in RF circuits.

MMBT4124 FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum collector-emitter voltage for the MMBT4124?

The maximum collector-emitter voltage (VCEO) for the MMBT4124 is 25V.

What is the continuous collector current rating of the MMBT4124?

The MMBT4124 has a continuous collector current rating of 200mA.

What is the minimum DC current gain (hFE) of the MMBT4124?

The minimum DC current gain (hFE) for the MMBT4124 is 120 at 2mA collector current and 1V VCE.

What is the gain-bandwidth product (fT) of the MMBT4124?

The gain-bandwidth product (fT) of the MMBT4124 is 300MHz at 10mA collector current and 20V VCE.

What is the operating temperature range for the MMBT4124?

The MMBT4124 operates between -55°C and 150°C.

What package type is the MMBT4124 available in?

The MMBT4124 is available in a surface mount SOT-23-3 package.

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