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ZTX705 from ZETEX

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ZTX705

Manufacturer: ZETEX, ZETEZ

PNP SILICON PLANAR MEDIUM POWER DARLINGTON TRANSISTORS
Partnumber Manufacturer Quantity Availability
ZTX705 ZETEX, ZETEZ 2336 In Stock

Description and Introduction

PNP SILICON PLANAR MEDIUM POWER DARLINGTON TRANSISTORS The ZTX705 is a PNP bipolar junction transistor (BJT) manufactured by ZETEX (now part of Diodes Incorporated). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Specifications:**
- **Transistor Type:** PNP  
- **Maximum Collector-Base Voltage (VCB):** -60V  
- **Maximum Collector-Emitter Voltage (VCE):** -60V  
- **Maximum Emitter-Base Voltage (VEB):** -5V  
- **Continuous Collector Current (IC):** -1A  
- **Total Power Dissipation (Ptot):** 1W  
- **DC Current Gain (hFE):** 100 (minimum) at IC = -100mA, VCE = -5V  
- **Transition Frequency (fT):** 150MHz (typical)  
- **Operating Temperature Range:** -55°C to +150°C  

### **Descriptions and Features:**
- Designed for general-purpose amplification and switching applications.  
- High current gain (hFE) with low saturation voltage.  
- Suitable for low-voltage and high-speed switching circuits.  
- Encapsulated in a TO-92 package for easy mounting.  
- Low noise performance, making it useful for audio applications.  
- Matched pair options available for differential amplifier circuits.  

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

Application Scenarios & Design Considerations

PNP SILICON PLANAR MEDIUM POWER DARLINGTON TRANSISTORS

Alternative Part Number

  • BC337 --: Widely available NPN general-purpose transistor with similar small-signal switching characteristics and low cost, suitable for many circuits where the ZTX705 is used.
  • 2N3904 --: Very common NPN transistor with comparable current and voltage ratings, easy to source and often used as a general replacement in low-power switching and amplification.
  • MPSA42 --: Higher voltage NPN transistor that can serve as a robust alternative when the ZTX705 is used in medium-voltage switching applications, with similar package style.
  • 2N7052 --: PNP Darlington transistor with similar high current gain and voltage ratings, widely available and commonly used as a functional substitute.
  • MPSA64 --: PNP Darlington transistor offering comparable gain and current capability, suitable for general switching and amplification replacement.
  • BC517 --: High-gain PNP Darlington transistor with similar characteristics, useful as an alternative when exact ZTX705 specs are not critical.

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