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BCY79 from ST,ST Microelectronics

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BCY79

Manufacturer: ST

Leaded Small Signal Transistor General Purpose

Partnumber Manufacturer Quantity Availability
BCY79 ST 5000 In Stock

Description and Introduction

Leaded Small Signal Transistor General Purpose The BCY79 is a PNP silicon planar epitaxial transistor manufactured by STMicroelectronics.  

**Key Specifications:**  
- **Collector-Emitter Voltage (VCEO):** -25 V  
- **Collector-Base Voltage (VCBO):** -40 V  
- **Emitter-Base Voltage (VEBO):** -5 V  
- **Collector Current (IC):** -1 A  
- **Total Power Dissipation (Ptot):** 830 mW  
- **Junction Temperature (Tj):** 150 °C  
- **DC Current Gain (hFE):** 40 to 250 (depending on variant)  
- **Transition Frequency (fT):** 50 MHz  

**Package:** TO-18 metal can  

**Variants:**  
- BCY79 (standard)  
- BCY79A (higher gain range)  
- BCY79B (lower gain range)  

**Applications:** General-purpose amplification and switching.  

For exact datasheet details, refer to STMicroelectronics' official documentation.

Partnumber Manufacturer Quantity Availability
BCY79 MOT/ST 1000 In Stock

Description and Introduction

Leaded Small Signal Transistor General Purpose The BCY79 is a PNP silicon planar epitaxial transistor manufactured by Motorola (MOT) and STMicroelectronics (ST).  

### **Manufacturer Specifications (MOT/ST):**  
- **Type:** PNP silicon transistor  
- **Package:** TO-18 metal can  
- **Maximum Ratings:**  
  - Collector-Base Voltage (VCB): -30V  
  - Collector-Emitter Voltage (VCE): -25V  
  - Emitter-Base Voltage (VEB): -5V  
  - Collector Current (IC): -200mA  
  - Total Power Dissipation (Ptot): 300mW (at 25°C)  
  - Operating Temperature Range (Tj): -65°C to +200°C  

- **Electrical Characteristics (Typical @ 25°C):**  
  - DC Current Gain (hFE): 100–250 (at IC = -2mA, VCE = -5V)  
  - Collector-Emitter Saturation Voltage (VCE(sat)): -0.25V (at IC = -10mA, IB = -1mA)  
  - Transition Frequency (fT): 150MHz (at IC = -10mA, VCE = -5V)  

- **Applications:**  
  - General-purpose amplification  
  - Switching circuits  

The specifications are based on datasheets from Motorola (MOT) and STMicroelectronics (ST).

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