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TCET1109G from VISHAY

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TCET1109G

Manufacturer: VISHAY

Optocouplers

Partnumber Manufacturer Quantity Availability
TCET1109G VISHAY 180000 In Stock

Description and Introduction

Optocouplers **Manufacturer:** VISHAY  
**Part Number:** TCET1109G  

### **Specifications:**  
- **Type:** Optocoupler (Optoisolator)  
- **Input Type:** LED  
- **Output Type:** Phototransistor  
- **Isolation Voltage:** 5000 Vrms  
- **Current Transfer Ratio (CTR):** 50% (min)  
- **Forward Current (If):** 60 mA (max)  
- **Collector-Emitter Voltage (Vce):** 70 V (max)  
- **Operating Temperature Range:** -55°C to +110°C  
- **Package Type:** DIP-4 (Dual In-line Package, 4-pin)  
- **Mounting Type:** Through Hole  

### **Descriptions:**  
The TCET1109G is an optocoupler designed to provide electrical isolation between input and output circuits. It consists of an infrared LED optically coupled to a phototransistor, ensuring signal transmission while maintaining high voltage isolation.  

### **Features:**  
- High isolation voltage (5000 Vrms)  
- Compact DIP-4 package  
- Reliable signal transmission  
- Wide operating temperature range  
- Suitable for industrial and automotive applications  

This device is commonly used in power supply feedback, signal isolation, and noise suppression applications.

Application Scenarios & Design Considerations

Optocouplers

Alternative Part Number

  • SFH618A-3 --: Standard phototransistor optocoupler with similar CTR and isolation ratings, widely available and pin-compatible in many designs.
  • PC817X3NSZ0F --: Common 4-pin DIP phototransistor optocoupler with comparable CTR binning and isolation voltage, a well-established cross-reference.
  • LTV-817S-TA1 --: Low-cost 4-pin optocoupler with similar current transfer ratio and isolation performance, suitable as a drop-in alternative.

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