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ZTX553 from ZETEX

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ZTX553

Manufacturer: ZETEX

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS

Partnumber Manufacturer Quantity Availability
ZTX553 ZETEX 542 In Stock

Description and Introduction

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS The ZTX553 is a high-voltage NPN transistor manufactured by ZETEX (now part of Diodes Incorporated). Below are its key specifications, descriptions, and features based on factual information:

### **Specifications:**
- **Type:** NPN Bipolar Junction Transistor (BJT)  
- **Collector-Emitter Voltage (VCE):** 150V  
- **Collector-Base Voltage (VCB):** 150V  
- **Emitter-Base Voltage (VEB):** 5V  
- **Continuous Collector Current (IC):** 500mA  
- **Power Dissipation (Ptot):** 1W  
- **DC Current Gain (hFE):** 100 (min) to 400 (max) at IC = 10mA  
- **Transition Frequency (fT):** 100MHz (typical)  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions:**
- The ZTX553 is designed for high-voltage switching and amplification applications.  
- It is housed in a TO-92 package, making it suitable for through-hole PCB mounting.  
- The transistor offers high current gain and fast switching speeds.  

### **Features:**
- High breakdown voltage (150V)  
- High current gain (hFE)  
- Low saturation voltage  
- Suitable for high-voltage and general-purpose applications  

For exact performance characteristics, refer to the official datasheet from ZETEX/Diodes Incorporated.

Application Scenarios & Design Considerations

PNP SILICON PLANAR MEDIUM POWER TRANSISTORS

Alternative Part Number

  • 2N3906 --: Widely available PNP general-purpose transistor with similar small-signal switching characteristics, good low-cost substitute for many ZTX553 applications.
  • BC557 --: Popular PNP transistor with comparable current and voltage ratings, commonly used as a drop-in replacement in low-power switching and amplifier circuits.
  • MMBT3906 --: SMD PNP transistor with similar electrical characteristics, suitable when a surface-mount alternative to the through-hole ZTX553 is acceptable.
  • BC337 --: NPN general-purpose transistor with similar current gain and voltage ratings; widely available and often used as a substitute in low-power switching and amplification.
  • 2N3904 --: Popular NPN small-signal transistor with comparable Vceo and current capability; suitable for general switching and amplifier circuits.
  • PN2222A --: NPN transistor with higher current rating and similar voltage characteristics; commonly used as a robust alternative in switching applications.

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