EL816-V Optoisolator Equivalent & Substitute Parts

Part Overview

The EL816-V is a 5000Vrms isolation optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This through-hole 4-DIP component provides single-channel isolation for DC input applications with 50mA output current capability. The part is active in production status with RoHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified for applications requiring equivalent isolation voltage, output characteristics, and package compatibility, or where alternative mounting technologies or performance specifications better suit specific design requirements.

Substiute Parts

EL816-V

Everlight Electronics Co LtdIn Stock: 977EL816-V Datasheet

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TLP785(F)

Toshiba Semiconductor and StorageIn Stock: 2426TLP785(F) Datasheet

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TLP785(GR-TP6,F)

Toshiba Semiconductor and StorageIn Stock: 13910TLP785(GR-TP6,F) Datasheet

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TLP785(Y,F)

Toshiba Semiconductor and StorageIn Stock: 1021TLP785(Y,F) Datasheet

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VO618A-3

Vishay Semiconductor Opto DivisionIn Stock: 5464VO618A-3 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL816-V is determined by the following criteria:

Primary Compatibility Requirements:

• Isolation voltage rating of 5000Vrms or higher
• Single-channel transistor output configuration
• Maximum output voltage of 80V or greater
• Output current capability of 50mA or greater
• Operating temperature range encompassing -55°C to 110°C
• 4-DIP package footprint (0.300", 7.62mm)

Mounting Technology Variants: Substitutes are grouped by mounting type. Through-hole 4-DIP variants (TLP785(F), TLP785(Y,F), VO618A-3) maintain identical PCB footprints. Surface-mount variants (TLP785(GR-TP6,F)) require different assembly processes and board layouts.

Performance Specification Ranges: Current transfer ratio specifications vary across substitutes. The EL816-V accepts ratios from 50% to 600% @ 5mA. Substitute parts with narrower or different CTR ranges remain compatible if their minimum specifications meet or exceed circuit requirements at the specified input current.

Parameter Comparison

Engineering Selection Recommendations

Through-Hole 4-DIP Substitutes (Direct PCB Footprint Compatibility):

TLP785(F) and TLP785(Y,F) from Toshiba Semiconductor and Storage are through-hole 4-DIP variants with identical package dimensions to the EL816-V. Both maintain 5000Vrms isolation, 50mA output current, and -55°C to 110°C operating range. TLP785(F) offers CTR specifications matching the EL816-V range (50% to 600% @ 5mA), while TLP785(Y,F) provides narrower CTR range (50% to 150% @ 5mA). Both are RoHS compliant with unlimited MSL rating.

VO618A-3 from Vishay Semiconductor Opto Division provides 5300Vrms isolation with through-hole 4-DIP mounting. This part specifies CTR at 1mA input current (100% to 200%) rather than 5mA, requiring circuit evaluation for compatibility. Vce saturation is 400mV compared to EL816-V's 200mV specification.

Surface-Mount Substitute (Assembly Process Change):

TLP785(GR-TP6,F) is a surface-mount 4-SMD variant in tape and reel packaging. This part requires SMD assembly capability and different PCB layout. It maintains 5000Vrms isolation and 50mA output current with CTR range of 100% to 300% @ 5mA. Rise and fall times are 2µs and 3µs respectively.

Compliance Status:

All substitute parts maintain RoHS compliance and unlimited moisture sensitivity rating. EL816-V, TLP785(F), and VO618A-3 carry RoHS3 designation. TLP785(Y,F) and TLP785(GR-TP6,F) carry RoHS Compliant status. All parts are classified as EAR99 for export control purposes.

Frequently Asked Questions (FAQ)

Q: Can TLP785(F) directly replace EL816-V in existing PCB designs?

A: Yes. TLP785(F) maintains identical 4-DIP through-hole package dimensions (0.300", 7.62mm), isolation voltage (5000Vrms), output current (50mA), and operating temperature range (-55°C to 110°C). Pin-to-pin compatibility exists for standard optoisolator applications. CTR specifications (50% to 600% @ 5mA) match the EL816-V range.

Q: What is the difference between TLP785(Y,F) and TLP785(F)?

A: Both are Toshiba through-hole 4-DIP optoisolators with 5000Vrms isolation. The primary difference is current transfer ratio specification. TLP785(F) specifies 50% to 600% CTR @ 5mA, while TLP785(Y,F) specifies 50% to 150% CTR @ 5mA. TLP785(Y,F) has narrower CTR tolerance, which may affect circuit performance in applications requiring higher CTR values.

Q: Why does VO618A-3 specify CTR at 1mA instead of 5mA?

A: VO618A-3 is characterized with 1mA input current, resulting in CTR specification of 100% to 200% @ 1mA. This differs from EL816-V's 5mA characterization point. Circuit designers must evaluate whether the VO618A-3 CTR performance at actual circuit operating currents meets application requirements.

Q: Can TLP785(GR-TP6,F) be used as a substitute in through-hole PCB designs?

A: No. TLP785(GR-TP6,F) is a surface-mount 4-SMD component with gull-wing leads, requiring SMD assembly processes and different PCB layout. It cannot be installed in through-hole mounting holes designed for 4-DIP packages. This variant is suitable only for new designs incorporating surface-mount assembly.

Q: What is the significance of Vce saturation differences between EL816-V and substitute parts?

A: EL816-V specifies maximum Vce saturation of 200mV, while TLP785(F), TLP785(Y,F), TLP785(GR-TP6,F), and VO618A-3 specify 400mV. Lower saturation voltage reduces power dissipation in the output transistor. Applications with tight power budgets or high-frequency switching may require evaluation of this parameter difference.

Q: Are all substitute parts available in equivalent packaging quantities?

A: Packaging formats differ. EL816-V is supplied in standard tube packaging. TLP785(F) and TLP785(Y,F) are supplied in tube packaging. TLP785(GR-TP6,F) is supplied in tape and reel format for automated SMD assembly. VO618A-3 is supplied in tube packaging. Procurement requirements should align with available packaging options.

Q: Do all substitute parts meet the same compliance standards as EL816-V?

A: All substitute parts are RoHS compliant with unlimited moisture sensitivity rating (MSL 1). EL816-V, TLP785(F), and VO618A-3 carry RoHS3 designation. TLP785(Y,F) and TLP785(GR-TP6,F) carry RoHS Compliant status. All parts are classified EAR99 for export control. Specific compliance requirements should be verified against application standards.