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FZT491 from ZETEX

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FZT491

Manufacturer: ZETEX

Power Dissipation: PC=2W, Continuous Collector Current: IC=1A

Partnumber Manufacturer Quantity Availability
FZT491 ZETEX 600 In Stock

Description and Introduction

Power Dissipation: PC=2W, Continuous Collector Current: IC=1A The ZETEX FZT491 is a PNP bipolar junction transistor (BJT) manufactured by ZETEX (now part of Diodes Incorporated). Key specifications include:

- **Type**: PNP transistor  
- **Package**: SOT-23 (surface-mount)  
- **Collector-Base Voltage (VCBO)**: -30V  
- **Collector-Emitter Voltage (VCEO)**: -25V  
- **Emitter-Base Voltage (VEBO)**: -5V  
- **Collector Current (IC)**: -500mA (continuous)  
- **Power Dissipation (Pd)**: 350mW  
- **DC Current Gain (hFE)**: 100–250 (at IC = -10mA, VCE = -5V)  
- **Transition Frequency (fT)**: 200MHz (typical)  
- **Operating Temperature Range**: -55°C to +150°C  

The FZT491 is designed for high-speed switching and amplification applications.

Partnumber Manufacturer Quantity Availability
FZT491 636 In Stock

Description and Introduction

Power Dissipation: PC=2W, Continuous Collector Current: IC=1A The FZT491 is a PNP silicon transistor manufactured by Diodes Incorporated. Here are its key specifications:

- **Type**: PNP Silicon Transistor
- **Package**: SOT-223
- **Collector-Emitter Voltage (VCEO)**: -60V
- **Collector-Base Voltage (VCBO)**: -60V
- **Emitter-Base Voltage (VEBO)**: -5V
- **Collector Current (IC)**: -1A
- **Power Dissipation (PD)**: 1.5W (at TA = 25°C)
- **DC Current Gain (hFE)**: 100 (min) to 400 (max) at IC = -150mA, VCE = -5V
- **Transition Frequency (fT)**: 50MHz (typical)
- **Operating Temperature Range**: -55°C to +150°C

These specifications are based on the manufacturer's datasheet. For detailed performance curves and application notes, refer to the official documentation from Diodes Incorporated.

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