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ZTX555 from ZETEX

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ZTX555

Manufacturer: ZETEX

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS

Partnumber Manufacturer Quantity Availability
ZTX555 ZETEX 200 In Stock

Description and Introduction

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS **Manufacturer:** ZETEX (now part of Diodes Incorporated)  

**Part Number:** ZTX555  

### **Specifications:**  
- **Type:** NPN Bipolar Junction Transistor (BJT)  
- **Maximum Collector-Base Voltage (VCB):** 160V  
- **Maximum Collector-Emitter Voltage (VCE):** 140V  
- **Maximum Emitter-Base Voltage (VEB):** 6V  
- **Continuous Collector Current (IC):** 1A  
- **Total Power Dissipation (Ptot):** 1W (at 25°C)  
- **DC Current Gain (hFE):** 50 to 250 (depending on operating conditions)  
- **Transition Frequency (fT):** 100MHz (typical)  
- **Operating Temperature Range:** -65°C to +150°C  

### **Descriptions and Features:**  
- High-voltage NPN transistor suitable for switching and amplification applications.  
- Low saturation voltage for efficient switching.  
- Designed for medium-power applications.  
- Available in TO-92 package for easy PCB mounting.  
- Suitable for use in power supplies, motor control, and general-purpose circuits.  

(Note: Always refer to the latest datasheet for updated specifications.)

Application Scenarios & Design Considerations

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS

Alternative Part Number

  • 2N5551 --: NPN high-voltage transistor with similar 160V rating and low current, commonly used as a general replacement for ZTX555 in many circuits.
  • MPSA42 --: High-voltage NPN transistor rated 300V, suitable where higher voltage margin is acceptable, widely available and pin-compatible in TO-92.
  • BC547 --: General-purpose NPN transistor for low-voltage, low-current applications; usable if the circuit does not require the higher voltage rating of the ZTX555.

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