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Vishay SFH628A3 Optocoupler

The SFH628A-3 is a single-channel, 4-pin optocoupler featuring an infrared GaAs LED emitter and silicon planar phototransistor detector, suitable for electrical isolation in industrial systems and control circuits. It provides high current transfer ratio, low coupling capacitance, and high isolation voltage up to 5300 V. Designed for signal transmission with reinforced insulation up to 400V RMS/DC, it ensures reliable operation in battery-powered devices, office machinery, and telecom equipment. The device is end-stackable, has a high collector-emitter voltage of 55V, and operates from -55°C to +100°C.

Authorized Distributors
Source:Newark
Part No:SFH628A-3
Stock:13614
Inv Date:06-09-2026
Price: Unit price: $0.979
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Source:DigiKey
Part No:SFH628A-3
Stock:2989
Inv Date:06-09-2026
Price: Unit price: $0.65
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Source:DigiKey
Part No:SFH628A-3
Stock:343
Inv Date:06-09-2026
Price: Unit price: $1.3
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Part No:SFH628A-3
Stock:8810
Inv Date:06-10-2026
Price: Unit price: $1.02
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Part No:SFH628A-3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.87
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Part No:SFH628A-3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.4021
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Part No:SFH628A-3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.4021
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Part No:SFH628A-3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.173
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Part No:SFH628A-3
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.405
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Authorized Distributors
Source:Arrow EU
Part No:SFH628A-3
Stock:1600
Inv Date:06-10-2026
Price: N/A
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Part No:SFH628A-3
Stock:630
Inv Date:06-10-2026
Price: N/A
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Vishay SFH628A3 Optocoupler Specifications:

  • Isolation test voltage: 5300 Vams
  • Collector emitter voltage: 55 V
  • Emitter collector voltage: 7 V
  • Collector current: 50 mA
  • Input forward current: +50 mA
  • Surge forward current: 25 A
  • Power dissipation (input): 76 mW
  • Power dissipation (output): 150 mW
  • Creepage and clearance distances: > 8 mm
  • Insulation thickness: 0.4 mm
  • Operating temperature range: -55°C to +100°C
  • Soldering temperature (max): 260°C for 10 s
  • Switching time: ton approx. 6 ps, toff approx. 5.5 us
  • CTR range: 100–320 %
  • Transistor saturation voltage: 0.25 V
  • Capacitance: 45 pF
  • Thermal resistance (input): 1070 KW
  • Thermal resistance (output): 500 KW

Buy the VISHAY SFH628A-3 Reliable Optocoupler for Industrial Applications

Purchase the VISHAY SFH628A-3 optocoupler online today to ensure high-quality electrical isolation in your industrial, telecom, or control systems. This single-channel 4-pin device offers high current transfer ratio, excellent immunity to interference, and reinforced insulation up to 400V RMS or DC. Its compact design with 2.54mm spacing allows easy stacking in tight spaces, making it ideal for battery-powered equipment, office machinery, and industrial automation. Enjoy fast delivery and exceptional reliability when you buy this trusted optocoupler online now.

Buy VISHAY SFH628A-3 now and experience unmatched reliability and performance in signal isolation for industrial and telecom control systems.

Frequently Asked Questions

Where can I buy Vishay SFH628A3?

You can click on the BUY or RFQ button to purchase SFH628A3 from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part SFH628A3?

You can download the SFH628A3 datasheet or visit the Vishay website for support.

Who is the manufacturer of SFH628A3?

Vishay

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