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Quick Details

  • Place of Origin: Philippines
  • Brand Name: Fairchild
  • Model Number: MMBT6427
  • Type: Bipolar Junction Transistor
  • Package Type: Surface Mount
  • Transistor Polarity: NPN
  • Package Outline: SOT-23

Packaging & Delivery

Packaging Details Standard Packaging For Export
Delivery Time Stock 5 to 7 days, Regular lead time 6 to 8 weeks

Fairchild Transistors
NPN Darlington Transistor
Darlington Surface Mount Transistor
Darlington NPN Transistor
SMD Silicon Darlington Transistor
Bipolar Transistors

1. Overview
Fairchild's discrete portfolio spans from high voltage to small signal devices addressing system needs from the smallest mobile devices to full scale industrial applications. Our discrete products include field effect (FET) and bipolar (BJT) transistors, IGBTs, and a broad selection of diodes and rectifiers and circuit protection devices

Fairchild offers you an extensive and proven transistor product portfolio. Depending on the application, your design may need a combination of general purpose, Darlington, RF, JFET, built-in bias network or low saturation transistors

Fairchild's transistor products are available in multiple packaging options and configurations

2. Description
The MMBT6427 is a NPN Darlington Transistor, This device is designed for applications requiring extremely high current gain at collector currents to 1.0 A

3. Applications
industrial, commercial and entertainment products

4. Features


Lead-Free Type


RoHS Compliant


5. Pinning information

6. Specifications

Transistor Polarity


Brand Name


Mounting Type

SMD(Surface-Mounted Device)

Package Type


Lead Count



3,000 units / reel

SMD Darlington Transistors Mass Stock

We supply various electronic components and welcome your inquiry

7. Package Dimensions (Unit: mm)

8. Our Advantage

  • We are professional electronic components supplier in Taiwan, Since its inception in 1987, UP TEKS participates in Taitronics annually. Despite the decreasing effectiveness, we insist on exhibiting our items and services on the traditional exhibition, hoping to find out demand of clients, explore potential clients, strengthen customer relationship and create an enterprise image through face-to-face interaction
  • As an independent distributor, we can support you a range of international brand electronic components. including microcontrollers/microprocessors, ic, transistors, rf modules, diodes, tantalum capacitors, trimmer capacitors, varistors, switches, sensors, potentiometers, multilayer ceramic capacitors, aluminum electrolytic capacitors, resistors, inductors, thyristors, connectors, filters and oscillators...etc active and passive components
  • Provide you one-stop service of electronic components, we can save your time&cost and increase the efficiency in your purchasing
  • We promote our sale line worldwide and act as an integrated agent combining component types of Europe, USA, Japan, Korea and Taiwan. We also play a role as an IPO for some foreign companies
  • More than 10,000 electronic components in stock to meet your needs of different products
  • With an abundant inventory and stable goods source, we offer numerous supply projects, including auxiliary service, long-term stable supply and immediate dealing with shortage and urgency. We acquire precious experiences from customer service, solving short-term shortage and offer service of prior material preparation to gain clients’ trust for long-term cooperation
  • Excellent elite team and a good understanding of international market trends
  • Good international reputation and keep a fixed philosophy
  • Worldwide delivery, Flexible payment and amount
  • Quick and accurate delivery and flexible logistics support
  • All the parts are 100% new and original with factory package
  • Customer-oriented return policy
  • In short supply shortage of professional suppliers of electronic components to solve discontinued electronic components experts
  • "Customer first and best quality" is UP TEKS principle always, experienced sourcing team, clear division of labor, provide competitive offer and delivery on time, do an excellent service for customers
  • Pass the ISO 9001-International authentication and The American commercial D&B D-U-N-S enterprise authenticated (DUNS Number: 656056157)
  • We sincerely hope to cooperate with our suppliers, distributors and manufacturers, to develop the electronic market with more contribution


9. Business Philosophy

  1. Integrity – take credits and honesty as core values and behavior principles
  2. Customer priority – meet demand of clients in time, and create business opportunity together
  3. Globalization – internationalize and offer global service
  4. Sustainable operation – follow trend of technology progression and run the business continuously


10. Organization Chart



11. Others Series Products

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