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MMBTA05LT1G

NPN BJT, 60V, 500mA, hFE 100, 100MHz, SOT-23-3

13670

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Manufacturer Part：

MMBTA05LT1G

Package：

SOT-23-3 (TO-236) (2.9 x 1.3 x 1.0 mm)

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Description

Product Overview

The MMBTA05LT1G from onsemi is an NPN bipolar junction transistor in a SOT-23-3 surface-mount package. Rated at 60V VCEO and 500mA collector current with 100MHz transition frequency, it is designed for general-purpose amplification and switching in low-power circuits.

Key Specifications

Transistor Type NPN
VCEO (Max) 60V
IC (Max) 500mA
hFE (Min) 100 @ 100mA, 1V
VCE(sat) Max 250mV @ 10mA, 100mA
fT 100MHz
Power Dissipation 225mW
Package SOT-23-3

Features

  • General-purpose NPN transistor
  • High DC current gain (hFE min 100)
  • Low saturation voltage (250mV max)
  • 100MHz transition frequency
  • AEC-Q101 qualified version available
  • Small SOT-23 footprint

Applications

  • General-purpose amplification
  • Low-power switching circuits
  • LED driver circuits
  • Sensor signal conditioning
  • Logic-level signal driving

The MMBTA05LT1G is a general-purpose NPN bipolar junction transistor from onsemi, optimized for low-power amplification and switching applications. It features a 60V collector-emitter breakdown voltage, 500mA continuous collector current, and a minimum DC current gain of 100 at 100mA. The low saturation voltage of 250mV ensures efficient switching operation. Packaged in a compact SOT-23-3 footprint, it is ideal for space-constrained PCB designs in consumer and industrial electronics.

As an NPN bipolar junction transistor, the MMBTA05LT1G operates by modulating current flow between collector and emitter through a small base current. In the active region, collector current is proportional to base current multiplied by hFE (min 100). In saturation, both junctions are forward-biased, and VCE drops to below 250mV. The 100MHz transition frequency indicates the device’s high-frequency capability, making it suitable for small-signal RF amplification and fast switching up to tens of MHz.

Pin Name Type Function
1 Base Input Base control terminal
2 Emitter Output Emitter terminal
3 Collector Output Collector terminal
  • General-purpose small-signal amplification
  • Low-power relay and LED driver
  • Sensor interface signal conditioning
  • Logic-level transistor-transistor interfacing
  • Audio preamplifier stages
Manufacturer Part Number Package Notes
onsemi MMBTA06LT1G SOT-23 NPN, 80V, 500mA
Infineon BC847B SOT-23 NPN, 45V, 100mA
Nexperia BC817-25 SOT-23 NPN, 45V, 500mA
onsemi MMBT3904LT1G SOT-23 NPN, 40V, 200mA
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All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Shipping & Payment

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

Service & Packaging

All electronic components we source from our partnered supply chains go through strict incoming inspections.Through careful testing, we ensure everything delivered to customers is genuine original parts and meets quality requirements.In addition, we keep complete inspection records to make the entire supply chain process clear and traceable.

Certification
We have obtained a number of professional certifications and built our own professional testing laboratory.This ensures that every product we deliver to our customers meets the highest quality requirements.We conduct tests in strict accordance with procedures to ensure stable product quality and accurate parameters.To guarantee genuine original parts, we also cooperate with reliable third-party testing institutions for strict quality inspection.We always attach great importance to quality and fully comply with industry standards, relevant regulations, and ISO 9001:2015 requirements.

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