IC Phoenix logo

Home ›  M  › M158 > MPSH81

MPSH81 from FAIRCHILD,Fairchild Semiconductor

Fast Delivery, Competitive Price @IC-phoenix

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

MPSH81

Manufacturer: FAIRCHILD, FSC

PNP RF Transistor

Partnumber Manufacturer Quantity Availability
MPSH81 FAIRCHILD, FSC 49000 In Stock

Description and Introduction

PNP RF Transistor # Introduction to the MPSH81 Transistor  

The **MPSH81** is a high-frequency, low-noise NPN bipolar junction transistor (BJT) designed for applications requiring excellent RF performance. With its high transition frequency (*fₜ*) and low noise figure, it is well-suited for use in amplification and signal processing circuits, particularly in radio frequency (RF) and intermediate frequency (IF) stages.  

## Key Features  

- **High Transition Frequency (*fₜ*):** Typically around **600 MHz**, making it suitable for VHF and UHF applications.  
- **Low Noise Figure:** Optimized for minimal signal degradation in sensitive RF circuits.  
- **Low Collector-Emitter Saturation Voltage:** Enhances efficiency in switching applications.  
- **Compact Package:** Available in **SOT-23** surface-mount packaging, ideal for space-constrained designs.  

## Applications  

The MPSH81 is commonly used in:  
- **RF amplifiers** (e.g., in communication receivers).  
- **Oscillators and mixers** for frequency conversion.  
- **Signal processing circuits** requiring low-noise amplification.  
- **High-speed switching applications.**  

## Electrical Characteristics  

With a maximum collector current (*I_C*) of **50 mA** and a collector-emitter voltage (*V_CE*) rating of **15 V**, the MPSH81 balances performance and reliability. Its low capacitance and high gain make it a preferred choice in RF design.  

## Conclusion  

The MPSH81 is a versatile RF transistor that delivers high-speed operation with minimal noise, making it a valuable component in communication and signal processing systems. Engineers favor it for its compact size and consistent performance in demanding applications.

Application Scenarios & Design Considerations

PNP RF Transistor

Alternative Part Number

  • 2N3906 --: Widely available PNP general-purpose transistor with similar voltage and current ratings, suitable replacement for low-power switching and amplification.
  • BC557 --: Common PNP transistor with comparable Vceo and current capability, pin-compatible in most through-hole applications.
  • 2SA1015 --: PNP transistor with similar small-signal characteristics and ratings, usable as a functional substitute in general-purpose circuits.

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