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STN3906 from AUK

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STN3906

Manufacturer: AUK

PNP Silicon Transistor

Partnumber Manufacturer Quantity Availability
STN3906 AUK 30100 In Stock

Description and Introduction

PNP Silicon Transistor The **STN3906** is a PNP bipolar junction transistor (BJT) manufactured by **STMicroelectronics**. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Transistor Type:** PNP  
- **Maximum Collector-Emitter Voltage (VCEO):** -40V  
- **Maximum Collector-Base Voltage (VCBO):** -40V  
- **Maximum Emitter-Base Voltage (VEBO):** -5V  
- **Continuous Collector Current (IC):** -200mA  
- **Total Power Dissipation (Ptot):** 625mW  
- **DC Current Gain (hFE):** 100 to 300 (at IC = -10mA, VCE = -1V)  
- **Transition Frequency (fT):** 250MHz (typical)  
- **Operating Temperature Range:** -55°C to +150°C  

### **Package Type:**
- **TO-92** (through-hole package)  

### **Descriptions & Features:**
- Designed for general-purpose amplification and switching applications.  
- High current gain (hFE) for improved signal amplification.  
- Low noise performance, making it suitable for audio applications.  
- Complementary NPN pair: **2N3904** (commonly used together in circuits).  
- RoHS compliant (lead-free).  

This transistor is commonly used in low-power amplification, signal processing, and switching circuits.  

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Application Scenarios & Design Considerations

PNP Silicon Transistor

Alternative Part Number

  • MMBT3906 --: Very common PNP general-purpose transistor with the same 3906 die type and similar electrical ratings, widely available and pin-compatible in SOT-23.
  • 2N3906 --: Classic PNP switching transistor with comparable voltage and current ratings; through-hole TO-92 package but electrically a close match.
  • BC857 --: SOT-23 PNP transistor with similar small-signal switching characteristics and current rating, suitable as a functional substitute.

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