IC Phoenix logo

Home ›  S  › S20 > SFH617A-1

SFH617A-1 from VISHAY

Fast Delivery, Competitive Price @IC-phoenix

If you need more electronic components or better pricing, we welcome any inquiry.

SFH617A-1

Manufacturer: VISHAY, SIEMENS

6V; 50mA low input phototransistor optically coupled isolator

Partnumber Manufacturer Quantity Availability
SFH617A-1,SFH617A1 VISHAY, SIEMENS 402 In Stock

Description and Introduction

6V; 50mA low input phototransistor optically coupled isolator The **SFH617A-1** is an optocoupler manufactured by **SIEMENS** (now part of **Infineon Technologies**). Below are its key specifications, descriptions, and features based on factual data:  

### **Specifications:**  
- **Type:** Phototransistor Optocoupler  
- **Isolation Voltage:** 5300 Vrms (min)  
- **Collector-Emitter Voltage (VCEO):** 70 V  
- **Emitter-Collector Voltage (VECO):** 7 V  
- **Collector Current (IC):** 50 mA (max)  
- **Current Transfer Ratio (CTR):** 20% to 40% (at IF = 5 mA, VCE = 5 V)  
- **Input Forward Current (IF):** 60 mA (max)  
- **Forward Voltage (VF):** 1.25 V (typ) at IF = 10 mA  
- **Response Time (tON / tOFF):** 3 μs / 4 μs (typ)  
- **Operating Temperature Range:** -55°C to +100°C  

### **Description:**  
- The **SFH617A-1** is a **single-channel optocoupler** with a **GaAs infrared LED** optically coupled to a **silicon NPN phototransistor**.  
- It provides **electrical isolation** between input and output circuits, making it suitable for noise suppression and signal transmission in industrial and automotive applications.  
- The device is housed in a **6-pin DIP (Dual In-line Package)** with a **creepage distance** compliant with safety standards.  

### **Features:**  
- **High isolation voltage (5300 Vrms)**  
- **Compact DIP-6 package**  
- **Fast switching speed** (microsecond response time)  
- **Wide operating temperature range** (-55°C to +100°C)  
- **Low power consumption**  
- **Compliant with safety standards** (UL, CSA, VDE)  

This optocoupler is commonly used in **power supply feedback circuits, industrial controls, and signal isolation applications**.  

(Note: SIEMENS' optoelectronics division was later acquired by **Infineon Technologies**, but the original datasheet references SIEMENS as the manufacturer.)

Application Scenarios & Design Considerations

6V; 50mA low input phototransistor optically coupled isolator

Alternative Part Number

  • PC817X1NSZ0F --: Industry-standard general-purpose optocoupler with CTR bin comparable to the SFH617A-1, widely available and pin-compatible in DIP-4 packages.
  • EL817 --: Low-cost DIP-4 phototransistor optocoupler with similar CTR range and isolation ratings, commonly used as a drop-in replacement.
  • LTV-817 --: Well-established DIP-4 optocoupler offering equivalent CTR and isolation performance, suitable for direct substitution in most circuits.
  • LTV-817S --: Low-cost DIP-4 phototransistor optocoupler with similar CTR range and isolation ratings, suitable as a direct functional replacement.

Request Quotation

For immediate assistance, call us at +86 533 2716050 or email [email protected]

Part Number Quantity Target Price($USD) Email Contact Person
We offer highly competitive channel pricing. Get in touch for details.

Specializes in hard-to-find components chips