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EL817 DIP-4 Transistor Output Optocoupler
₹16.00 Original price was: ₹16.00.₹12.00Current price is: ₹12.00.
STOCK: 4 (WooHoo!) Available
Quick Review:
- Package Type: DIP-4
- Isolation Voltage: 5000V (peak)
- Input Type: Infrared LED
- Output Type: NPN phototransistor
- Forward Current: 50mA (max)
- Collector-Emitter Voltage: 80V (max)
- Response Time: Fast response suitable for most switching applications
Shipping: Usually delivered in 3-7 days.
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Availability:
4 in stock

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The EL817 is a reliable and versatile optocoupler, featuring a phototransistor output encased in a compact DIP-4 package. It is designed for isolating electrical signals and protecting sensitive components from high-voltage transients, making it an essential component in switching power supplies, signal isolation, and data transmission systems. The EL817 offers high isolation voltage and fast response times, ideal for a variety of industrial and consumer applications.
Key Features:
- High Isolation Voltage: Provides isolation up to 5000V (peak), ensuring safety and signal integrity between circuits.
- Phototransistor Output: Facilitates efficient signal transfer while maintaining electrical isolation.
- Compact DIP-4 Package: Easy integration into PCBs and compatible with standard through-hole mounting.
- Wide Operating Range: Supports a broad input and output voltage range, suitable for diverse applications.
- High Transfer Efficiency: Reliable signal transfer with minimal distortion.
Technical Specifications:
- Package Type: DIP-4
- Isolation Voltage: 5000V (peak)
- Input Type: Infrared LED
- Output Type: NPN phototransistor
- Forward Current: 50mA (max)
- Collector-Emitter Voltage: 80V (max)
- Response Time: Fast response suitable for most switching applications
Applications:
- Switching power supplies
- Microcontroller signal isolation
- Data communication interfaces
- AC and DC power control
- Industrial automation
- Protection circuits
- Motor drive circuits
Why Choose the EL817 Optocoupler? The EL817 is an excellent choice for protecting your circuits while ensuring efficient and reliable signal transmission. It’s perfect for projects that require electrical isolation between components, preventing damage from high voltages or electrical noise. Whether you’re working on industrial automation systems or consumer electronics, the EL817 offers the performance and dependability you need.
Package Includes:
- 1 Piece- EL817 DIP-4 Transistor Output Optocoupler
Shipping
We strive to ensure that your orders reach every corner of India efficiently and reliably. To achieve this, we partner with some of the most trusted courier services in the country, including E-Kart, Amazon Surface, Delhivery, DTDC, Blue Dart, XpressBees, Ecom Express, and India Speed Post—especially for rural areas, based on the most suitable courier partner for each customer’s location.
For interior or remote regions not serviced by private couriers, we rely on India Post to ensure complete coverage.
We make every effort to dispatch orders on the same day they are placed or within 24 hours of receiving the order. Orders placed before 1 PM (IST) are typically shipped the same day, while those placed after 1 PM are scheduled for shipment the next working day.
This level of commitment applies throughout the week, including weekdays, and often extends to weekends and public holidays to serve our customers better.
We also offer local self-pickup options for customers in nearby areas—available on weekdays and partially available on weekends.
Warranty
This item is covered by a 7-day limited warranty from the date of delivery, applicable only to manufacturing defects. This warranty is provided solely to protect customers against any such defects. In the unlikely event of an issue, replacement or reimbursement will be offered after a complete inspection and confirmation of the defect.
What voids the warranty?
If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.
Note: For your peace of mind, all electronic items are imported and, as such, do not come with a manufacturer’s warranty or guarantee. However, we take great care to ensure product quality—each item is thoroughly inspected before dispatch.
Other Info
- Country of origin: China
- Packer/ Importer: Ercoms Robotics Lab
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