IC Phoenix logo

Home ›  M  › M151 > MMST5551

MMST5551 from DIODES

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

MMST5551

Manufacturer: DIODES, CJ

Conductor Holdings Limited - NPN General Purpose Transistor

Partnumber Manufacturer Quantity Availability
MMST5551 DIODES, CJ 82980 In Stock

Description and Introduction

Conductor Holdings Limited - NPN General Purpose Transistor **Introduction to the MMST5551 Electronic Component**  

The MMST5551 is a widely used NPN bipolar junction transistor (BJT) designed for general-purpose amplification and switching applications. Known for its reliability and performance, this small-signal transistor is commonly employed in low-power circuits, signal processing, and driver stages.  

With a compact SOT-23 surface-mount package, the MMST5551 is ideal for space-constrained designs while maintaining efficient thermal and electrical characteristics. It features a collector-emitter voltage (VCE) rating of 160V and a collector current (IC) of 600mA, making it suitable for a variety of electronic applications. Additionally, its high current gain (hFE) ensures stable amplification in analog circuits.  

Engineers often select the MMST5551 for its fast switching speeds and low saturation voltage, which enhance efficiency in digital and power management systems. Its robust construction and consistent performance under varying conditions contribute to its popularity in consumer electronics, industrial controls, and communication devices.  

When integrating the MMST5551 into a circuit, proper biasing and heat dissipation considerations are essential to maximize performance and longevity. Datasheet specifications should be carefully reviewed to ensure compatibility with design requirements.  

In summary, the MMST5551 is a versatile and dependable transistor that balances power handling, speed, and compactness, making it a preferred choice for modern electronic designs.

Application Scenarios & Design Considerations

Conductor Holdings Limited - NPN General Purpose Transistor

Alternative Part Number

  • 2N5551 --: Through-hole TO-92 version of the same NPN high-voltage transistor with nearly identical electrical characteristics; widely available and often used as a drop-in replacement when package change is acceptable.
  • BCX70 --: SOT-23 NPN transistor with comparable voltage and current ratings, suitable for general-purpose switching and amplification where the higher VCEO of the MMST5551 is not critical.
  • FMMT5551 --: Alternative SOT-23 NPN high-voltage transistor from a different product family with similar 160V rating, offering a distinct part number while keeping the same package footprint.
  • PMBT5551 --: SOT-23 NPN transistor with similar voltage and current specifications, a common cross-reference for the 5551 series in surface-mount designs.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips