Mfr Part #:

MMBT4124

Mfr Name: YTL

The MMBT4124 is an NPN general purpose amplifier and switch transistor from YTL. It offers a 25V collector-emitter voltage and a 200mA continuous collector current.

✓ Total Stock: 2,700 pcs

$ Price Range: $0.04

MMBT4124 Available from 1 distributor

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✓ Non-Authorised

Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery

Braun Electronic Components ✓

Non-Authorised Inventory information

2,700 pcs

$0.04 ℹ

Qty	Price
0+	0.04

2700 pcs

$0.04

Qty	Price
0+	0.04

On Request

MMBT4124 Specifications Quick View

Most important parameters for selection – full specs in datasheet.

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Category	New Products
Manufacturer Name	YTL
Halogen Free	No
Input Capacitance	8 pF
Mounting Type	Surface Mount
Noise Figure	5 dB
SVHC Present	Not Present
Tape & Reel	Tape & Reel

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MMBT4124 Description

Short technical summary and product information.

The MMBT4124 is an NPN silicon epitaxial planar transistor designed for general-purpose amplification and switching applications. Manufactured by YTL, this component is housed in a compact SOT-23 package, making it suitable for surface-mount designs.

Key electrical characteristics include a collector-emitter voltage (VCEO) of 25V and a continuous collector current (IC) of 200mA. The device boasts a DC current gain (hFE) ranging from 60 to 360 and a current gain-bandwidth product (fT) of 300MHz at 10mA collector current and 20V VCE. Its collector-emitter saturation voltage (VCE(sat)) is a maximum of 0.3V at 50mA IC and 5mA IB, and the base-emitter saturation voltage (VBE(sat)) is a maximum of 0.95V under the same conditions.

With an operating and storage junction temperature range of -55 to +150°C, the MMBT4124 is designed for robust performance. The thermal resistance from junction to ambient (RθJA) is 200°C/W, and from junction to case (RθJC) is 83.3°C/W. The total device dissipation (PD) is rated at 350mW at 25°C ambient temperature, with a derating of 2.8mW/°C above that temperature.

This transistor is well-suited for applications requiring amplification and switching within its specified limits. Its SOT-23 package facilitates automated assembly processes.

MMBT4124 Quick Information

Product Type: NPN Transistor

Series: MMBT

Canonical Name: MMBT4124 NPN General Purpose Amplifier

Subcategory: NPN

MMBT4124 Compliance

RoHS Status: RoHS Compliant

Moisture Sensitivity Level (MSL): 1 Unlimited

REACH Status: REACH Unaffected

Lead Free: Yes

MMBT4124 Estimated Pricing

Qty	Low	High
1+	$0.11	$0.11

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 current gain-bandwidth product.
Compact SOT-23 surface mount package.

MMBT4124 Applications

General-purpose switching and amplification circuits.
Low-noise amplifier stages in audio equipment.
Signal processing in portable electronics.
Driver stages for relays and LEDs.
RF preamplifier stages up to 300 MHz.

MMBT4124 FAQs

7 frequently asked questions generated from this part’s specifications.

What is the maximum collector-emitter voltage of the MMBT4124?

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

What package does the MMBT4124 come in?

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

What is the operating temperature range of the MMBT4124?

The junction temperature range is -55°C to +150°C.

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

The minimum hFE is 120 at IC=2mA, VCE=1V, and 60 at IC=50mA, VCE=1V.

What is the transition frequency of the MMBT4124?

The typical current gain-bandwidth product (fT) is 300 MHz at IC=10mA, VCE=20V.

What is the input capacitance of the MMBT4124?

The typical input capacitance (Cibo) is 8 pF at VBE=0.5V, IC=0, f=1kHz.

What is the maximum power dissipation of the MMBT4124?

The maximum total device dissipation is 350mW at 25°C ambient.