Introduction to EL814S(A)(TU) Transistor Output Optocouplers
The Transistor Output Optocouplers EL814S(A)(TU) by Everlight are compact, high-isolation components designed to provide safe electrical separation between input and output circuits. As part of the Optoelectronics family, these optocouplers ensure noise immunity, signal integrity, and reliable switching performance.
Widely used in industrial and consumer electronics, they stand out within the Optocouplers / Photocouplers category and specifically within Transistor Output Optocouplers. You can purchase this device globally from www.xonelec.com, trusted by engineers through x-on electronics.
Technical Specifications of EL814S(A)(TU)
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Manufacturer: Everlight
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Part Number: EL814S(A)(TU)
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Category: Optoelectronics, Optocouplers / Photocouplers, Transistor Output Optocouplers
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Input Type: Infrared LED
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Output Type: NPN transistor
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Isolation Voltage: 5000 Vrms
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CTR (Current Transfer Ratio): Various ranges depending on model
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Package: 4-pin DIP
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Operating Temperature: –55°C to +110°C
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Applications: Power supply feedback, signal isolation, industrial interfaces
This device is engineered to provide long-term electrical isolation and dependable switching.
Key Features of EL814S(A)(TU) Optocouplers
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High isolation voltage for safety-critical designs
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Stable CTR across temperature variations
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Low power LED input
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Industry-standard DIP-4 package
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Excellent noise immunity for industrial environments
These qualities make it a reliable choice across the Optoelectronics and Transistor Output Optocouplers categories.
Applications of EL814S(A)(TU) by Everlight
These optocouplers are commonly used in:
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Switched-mode power supplies (SMPS)
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PLC and industrial control inputs
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Microcontroller signal isolation
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AC/DC converters
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Communication interfaces
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Home appliance control boards
As versatile members of the Optocouplers / Photocouplers family, they support high-performance electrical insulation.
Wiring and Connection Overview
To ensure optimal performance of the EL814S(A)(TU) Optocoupler, follow these guidelines:
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Connect the LED input with proper forward current limiting
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Ensure the transistor output is biased correctly
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Maintain safe clearance distances on PCB for high isolation
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Avoid reversing LED polarity during installation
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Use noise-filtering capacitors when required
These practices ensure reliable and consistent operation in isolated circuits.
Use Case Scenario: Feedback in a Switched-Mode Power Supply
Scenario: A power supply designer required a compact, reliable isolation component for primary-to-secondary feedback.
Problem: Noise fluctuations were causing unstable feedback signals.
Solution: The EL814S(A)(TU) Transistor Output Optocoupler provided stable CTR and excellent noise immunity.
Result: Enhanced performance, steady voltage regulation, and long-term system reliability.
This highlights the importance of high-quality Transistor Output Optocouplers in power systems.
Download Datasheet for EL814S(A)(TU)
Access electrical characteristics, CTR curves, and mechanical drawings:
Download EL814S(A)(TU) Datasheet
Why Buy from XON Electronics?
Choose xon electronics for genuine Optoelectronics components by Everlight:
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100% original parts
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Shipping to USA, India, Australia, Europe & worldwide
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Bulk and OEM order support
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Competitive pricing with fast delivery
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Reliable sourcing through www.xonelec.com
Order today and enjoy dependable service.
FAQ – EL814S(A)(TU) Optocouplers
Q1. What isolation voltage does it provide?
5000 Vrms.
Q2. What type of output transistor does it use?
An NPN transistor.
Q3. Is it suitable for power supply feedback?
Yes, widely used in SMPS designs.
Q4. What package is used?
Standard DIP-4.
Q5. Can I buy it globally?
Yes, through www.xonelec.com.
Conclusion
The EL814S(A)(TU) Transistor Output Optocouplers by Everlight deliver stable, safe, and noise-resistant signal isolation for industrial and commercial systems. As part of the Optoelectronics, Optocouplers / Photocouplers, and Transistor Output Optocouplers categories, they offer exceptional reliability and value.
Purchase them at www.xonelec.com with international delivery to USA, India, Australia, Europe, and more.