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KST3904MTF

Manufacturer: 仙童

NPN Epitaxial Silicon Transistor

Partnumber Manufacturer Quantity Availability
KST3904MTF 仙童 4730 In Stock

Description and Introduction

NPN Epitaxial Silicon Transistor The KST3904MTF is a general-purpose NPN bipolar junction transistor (BJT) manufactured by ON Semiconductor. Here are its key specifications, descriptions, and features:

### **Specifications:**  
- **Transistor Type:** NPN  
- **Collector-Emitter Voltage (VCE):** 40V  
- **Collector-Base Voltage (VCB):** 60V  
- **Emitter-Base Voltage (VEB):** 6V  
- **Collector Current (IC):** 200mA  
- **Power Dissipation (PD):** 350mW  
- **DC Current Gain (hFE):** 100-300 (at IC = 10mA, VCE = 1V)  
- **Transition Frequency (fT):** 300MHz  
- **Operating Temperature Range:** -55°C to +150°C  
- **Package Type:** SOT-23 (3-pin surface mount)  

### **Descriptions:**  
- Designed for general-purpose amplification and switching applications.  
- Suitable for low-power circuits in consumer electronics, signal processing, and RF applications.  
- RoHS compliant and lead-free.  

### **Features:**  
- High current gain (hFE) for improved amplification.  
- Low saturation voltage for efficient switching.  
- Compact SOT-23 package for space-constrained designs.  
- High transition frequency (fT) for RF and high-speed applications.  

This information is based on the manufacturer's datasheet. For detailed performance curves and application notes, refer to ON Semiconductor's official documentation.

Application Scenarios & Design Considerations

NPN Epitaxial Silicon Transistor

Alternative Part Number

  • MMBT3904 --: Industry-standard NPN small-signal transistor in SOT-23 with nearly identical Vceo, Ic, and hFE specs, widely available and pin-compatible.
  • 2N3904S --: SOT-23 surface-mount version of the classic 2N3904 NPN transistor, matching the original's electrical characteristics and package footprint.
  • BC847B --: General-purpose NPN transistor in SOT-23 with comparable current gain and voltage ratings, suitable as a functional substitute in most switching and amplification circuits.
  • PMBT3904 --: SOT-23 NPN switching transistor with equivalent 40V/200mA ratings and pinout, suitable drop-in alternative.

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