EL817(C)-G Equivalent & Substitute Parts

Part Overview

The EL817(C)-G is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides galvanic isolation up to 5000Vrms with a single channel configuration in a 4-DIP package. The device is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

EL817(C)-G

Everlight Electronics Co LtdIn Stock: 1224EL817(C)-G Datasheet

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VO618A-2

Vishay Semiconductor Opto DivisionIn Stock: 4441VO618A-2 Datasheet

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VO618A-4

Vishay Semiconductor Opto DivisionIn Stock: 12873VO618A-4 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute optoisolators for the EL817(C)-G are qualified based on the following criteria:

Electrical Compatibility Requirements:

• Isolation voltage rating equal to or greater than 5000Vrms
• Single channel configuration
• Transistor output type
• Maximum output voltage of 80V or greater
• Maximum output current of 50mA or greater
• Operating temperature range encompassing -55°C to 110°C
• Input type: DC

Mechanical Compatibility Requirements:

• Package type: 4-DIP (0.300", 7.62mm)
• Mounting type: Through Hole
• Supplier device package: 4-DIP

Compliance Requirements:

• RoHS3 compliant
• Active product status

The Vishay Semiconductor Opto Division VO618A series meets these criteria with isolation voltage ratings of 5300Vrms, exceeding the minimum requirement. Both VO618A-2 and VO618A-4 variants maintain identical mechanical packaging and thermal operating ranges.

Parameter Comparison

Engineering Selection Recommendations

VO618A-4 Substitution: The VO618A-4 is the primary substitute for the EL817(C)-G. Both components share identical mechanical packaging, thermal operating ranges, and compliance certifications. The VO618A-4 provides higher isolation voltage (5300Vrms versus 5000Vrms) and current transfer ratio specifications (160% to 320% @ 1mA) that align with the EL817(C)-G performance envelope. All components are Active status with RoHS3 compliance and MSL Level 1 rating.

VO618A-2 Substitution: The VO618A-2 is a secondary substitute option. This variant maintains identical mechanical and thermal specifications but features lower current transfer ratio performance (63% to 125% @ 1mA). Selection of VO618A-2 is appropriate only when circuit design accommodates reduced current transfer ratio specifications.

Compliance and Availability: All substitute parts maintain RoHS3 compliance and Unlimited moisture sensitivity level (MSL 1). The VO618A series components are manufactured by Vishay Semiconductor Opto Division with Active product status, ensuring long-term availability and supply chain stability.

Frequently Asked Questions (FAQ)

Q: Can VO618A-4 directly replace EL817(C)-G in existing circuit designs?

A: Yes. Both components share identical 4-DIP package dimensions (0.300", 7.62mm), through-hole mounting type, maximum output voltage (80V), maximum output current (50mA), and operating temperature range (-55°C to 110°C). Pin-to-pin compatibility is maintained for standard optoisolator applications.

Q: What is the difference between VO618A-2 and VO618A-4?

A: The primary difference is current transfer ratio performance. VO618A-4 provides 160% to 320% @ 1mA, while VO618A-2 provides 63% to 125% @ 1mA. Both share identical isolation voltage (5300Vrms), package type, and thermal specifications. Selection depends on circuit current transfer ratio requirements.

Q: Does the higher isolation voltage of VO618A series (5300Vrms) affect circuit compatibility?

A: No. Higher isolation voltage rating is a superset specification. Circuits designed for 5000Vrms isolation operate without modification at 5300Vrms isolation. This represents improved performance margin.

Q: Are there differences in switching speed between EL817(C)-G and VO618A substitutes?

A: Yes. VO618A series components feature faster switching characteristics: rise/fall times of 2µs each compared to EL817(C)-G specifications of 6µs rise and 8µs fall. Circuits sensitive to switching speed must account for this difference during design validation.

Q: What is the significance of Vce Saturation differences?

A: EL817(C)-G specifies maximum Vce saturation of 200mV, while VO618A series specifies 400mV maximum. This represents a 200mV difference in transistor saturation voltage. Circuits with tight output voltage specifications must account for this parameter variation.

Q: Are all three components RoHS3 compliant?

A: Yes. EL817(C)-G, VO618A-2, and VO618A-4 are all RoHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating, suitable for standard PCB assembly processes.

Q: What packaging format is supplied for substitute parts?

A: VO618A-2 and VO618A-4 are supplied in Tube packaging. EL817(C)-G packaging format is not specified in available data. Confirm packaging requirements with procurement specifications.