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LH1550 from SIEMENS

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LH1550

Manufacturer: SIEMENS

HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER

Partnumber Manufacturer Quantity Availability
LH1550 SIEMENS 20 In Stock

Description and Introduction

HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER The part **LH1550** is manufactured by **SIEMENS**. Below are the factual specifications, descriptions, and features based on available knowledge:  

### **Specifications:**  
- **Type:** Optocoupler / Optoisolator  
- **Input Type:** LED (Infrared)  
- **Output Type:** Phototransistor  
- **Isolation Voltage:** Typically 5300Vrms  
- **Collector-Emitter Voltage (VCEO):** 70V  
- **Current Transfer Ratio (CTR):** Typically 50% (min. 20%)  
- **Forward Current (IF):** 60mA (max)  
- **Operating Temperature Range:** -55°C to +100°C  
- **Package Type:** DIP-6 (Dual Inline Package)  

### **Descriptions:**  
- The **LH1550** is an optocoupler designed for signal isolation in electronic circuits.  
- It provides electrical isolation between input and output using an infrared LED and a phototransistor.  
- Commonly used in industrial, automotive, and communication applications for noise immunity and safety.  

### **Features:**  
- High isolation voltage for enhanced safety.  
- Fast switching response time.  
- Compact DIP-6 package for easy PCB mounting.  
- Reliable performance in harsh environments.  

For exact datasheet details, refer to the official **SIEMENS** documentation.

Application Scenarios & Design Considerations

HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER
Partnumber Manufacturer Quantity Availability
LH1550 infineon 29 In Stock

Description and Introduction

HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER The part **LH1550** is manufactured by **Infineon Technologies**. Below are the specifications, descriptions, and features based on available knowledge:

### **Specifications:**
- **Type:** Optocoupler / Solid-State Relay (SSR)  
- **Input Type:** LED (Infrared)  
- **Output Type:** Phototransistor  
- **Isolation Voltage:** 5300 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 70 V  
- **Current Transfer Ratio (CTR):** 50% (min) at 10 mA input  
- **Switching Speed (Turn-On / Turn-Off):** 3 μs / 4 μs (typical)  
- **Operating Temperature Range:** -55°C to +110°C  

### **Description:**  
The **LH1550** is a high-speed optocoupler designed for signal isolation in industrial and automotive applications. It provides galvanic isolation between input and output circuits, ensuring noise immunity and safety in high-voltage environments.  

### **Features:**  
- High-speed switching for digital signal transmission  
- High isolation voltage (5300 Vrms)  
- Compact DIP-6 package  
- Low power consumption  
- AEC-Q100 qualified for automotive applications  

For detailed datasheets, refer to **Infineon’s official documentation**.

Application Scenarios & Design Considerations

HIGH VOLTAGE, SOLID STATE RELAY OPTOCOUPLER

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