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Vishay 4N25 Optocoupler

The 4N25 is an industry-standard single-channel optocoupler with base connection. It features a gallium arsenide infrared LED and a silicon NPN phototransistor, providing electrical isolation and signal transfer between different parts of a system. The device offers a high isolation test voltage of 5000 VRMS, compatibility with common logic families, low input-output coupling capacitance, and faster switching speeds compared to standard optocouplers. It is suitable for applications in power management, communications and networking, and motor drive and control systems.

Authorized Distributors
Source:Newark
Part No:4N25
Stock:5604
Inv Date:06-09-2026
Price: Unit price: $0.713
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Source:DigiKey
Part No:4N25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.33621
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Source:DigiKey
Part No:4N25
Stock:1075
Inv Date:06-09-2026
Price: Unit price: $0.61
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Source:DigiKey
Part No:4N25
Stock:8928
Inv Date:06-09-2026
Price: Unit price: $1.15
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Source:DigiKey
Part No:4N25
Stock:13215
Inv Date:06-09-2026
Price: Unit price: $1.04
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Source:DigiKey
Part No:4N25
Stock:619
Inv Date:06-09-2026
Price: Unit price: $1.3
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Part No:4N25
Stock:14826
Inv Date:06-10-2026
Price: Unit price: $0.73
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Part No:4N25
Stock:17548
Inv Date:06-10-2026
Price: Unit price: $0.41
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Part No:4N25
Stock:0
Inv Date:06-10-2026
Price: N/A
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Authorized Distributors
Part No:4N25
Stock:0
Inv Date:06-10-2026
Price: N/A
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Part No:4N25
Stock:1168
Inv Date:06-09-2026
Price: Unit price: $0.72
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Part No:4N25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.2285
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Part No:4N25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.2285
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Part No:4N25
Stock:23398
Inv Date:06-10-2026
Price: N/A
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Part No:4N25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.215
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Source:Arrow EU
Part No:4N25
Stock:7031
Inv Date:06-10-2026
Price: N/A
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Part No:4N25
Stock:5985
Inv Date:06-10-2026
Price: N/A
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Part No:4N25
Stock:0
Inv Date:06-09-2026
Price: Unit price: $0.191
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Authorized Distributors
Part No:4N25
Stock:5689
Inv Date:06-09-2026
Price: Unit price: $0.109
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Vishay 4N25 Optocoupler Specifications:

  • Isolation test voltage: 5000 VRMS
  • Input Reverse Voltage: 5 V
  • Forward Current: 60 mA
  • Power Dissipation (Input): 100 mW
  • Collector Emitter Breakdown Voltage: 70 V
  • Emitter Base Breakdown Voltage: 7 V
  • Collector Current: 50 mA
  • Collector Power Dissipation: 150 mW
  • Isolation Resistance: 10^12 Ohms at 500 V
  • Junction Temperature: 125°C
  • Operating Temperature: -55°C to +100°C
  • Soldering Temperature: 260°C for 10 seconds
  • Capacitance (Input-Output): 0.6 pF
  • Rise/Fall Time: 2 μs
  • CTR (Current Transfer Ratio): 20-50%

Buy the Vishay Series 4N25 Optocoupler: 4N25

Experience reliable and high-speed signal transfer with the Vishay 4N25 optocoupler. This single-channel device provides 5000 VRMS isolation, low input-output capacitance, and compatibility with various logic systems. It’s ideal for power supply feedback, communication interfaces, motor control, and ground isolation applications. Designed for durability and efficiency, the 4N25 ensures safe electrical separation while offering faster switching times and robustness suitable for industrial environments. Purchase online today for confident, high-performance system integration.

Get Vishay 4N25 today—built for precision, fast switching, and reliable electrical isolation in power and communication systems.

Frequently Asked Questions

Where can I buy Vishay 4N25?

You can click on the BUY or RFQ button to purchase 4N25 from an authorized Vishay distributor.

How do I troubleshoot issues or seek technical support for part 4N25?

You can download the 4N25 datasheet or visit the Vishay website for support.

Who is the manufacturer of 4N25?

Vishay

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