EL816(Y)-V Equivalent & Substitute Parts

Part Overview

The EL816(Y)-V is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation in a 4-DIP through-hole package, designed for DC input applications requiring galvanic isolation with transistor switching capability. The part is currently active in production with 775 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across isolation voltage, output current capacity, switching characteristics, and package form factor.

Substiute Parts

EL816(Y)-V

Everlight Electronics Co LtdIn Stock: 802EL816(Y)-V Datasheet

Current PartRFQ

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(Y)-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
• Maximum output current of 50mA or greater
• Operating temperature range encompassing -55°C to 110°C
• 4-DIP package form factor (through-hole or surface-mount variants)
• Active product status with RoHS compliance

Secondary Evaluation Parameters:

• Current transfer ratio range (minimum 50% @ specified test current)
• Rise and fall time characteristics
• Vce saturation voltage
• Forward voltage of input LED

All identified substitutes meet or exceed the primary compatibility requirements. Variations in current transfer ratio ranges, switching times, and saturation voltages are acceptable within the scope of optoisolator transistor output devices in this isolation class.

Parameter Comparison

Engineering Selection Recommendations

Through-Hole DIP Package Substitutes (Direct PCB Replacement):

The TLP785(F), TLP785(Y,F), and VO618A-3 are direct mechanical and electrical substitutes for through-hole applications. All three maintain the 4-DIP form factor with 0.300" (7.62mm) pin spacing, enabling direct insertion into existing PCB footprints designed for the EL816(Y)-V.

TLP785(F) offers the widest current transfer ratio range (50% to 600% @ 5mA) and is manufactured by Toshiba Semiconductor and Storage with ROHS3 compliance. This variant provides maximum design flexibility for applications with varying input current conditions.

TLP785(Y,F) is also manufactured by Toshiba with a narrower CTR range (50% to 150% @ 5mA), suitable for applications requiring tighter performance specifications. Both Toshiba variants feature 2µs rise time compared to the EL816(Y)-V's 4µs rise time.

VO618A-3 from Vishay Semiconductor Opto Division provides the highest isolation voltage rating at 5300Vrms and features the fastest fall time at 2.3µs. This variant is specified at 1mA test current rather than 5mA, resulting in different CTR characterization (100% to 200% @ 1mA).

Surface-Mount SMD Substitute (Assembly Process Change):

The TLP785(GR-TP6,F) is a surface-mount variant in 4-SMD gull-wing package, supplied on tape and reel. This part maintains electrical equivalence but requires reflow soldering assembly processes instead of through-hole insertion. Selection of this variant necessitates PCB redesign and manufacturing process modification.

Compliance and Availability:

All substitute parts are active products with current production status. TLP785(GR-TP6,F) has the highest inventory availability at 13,874 units. All parts carry appropriate RoHS compliance certifications. Selection should account for supply chain requirements, assembly process capabilities, and specific performance parameter needs within the ranges provided.

Frequently Asked Questions (FAQ)

Q: Can TLP785(F) replace EL816(Y)-V in existing designs without PCB modification?

A: Yes. Both parts use the 4-DIP through-hole package with identical 0.300" (7.62mm) pin spacing. Direct insertion into existing PCB footprints is mechanically and electrically compatible. The TLP785(F) meets all primary electrical requirements: 5000Vrms isolation, 80V maximum output voltage, 50mA maximum output current, and -55°C to 110°C operating range.

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

A: Both are Toshiba through-hole 4-DIP optoisolators with 5000Vrms isolation. The primary difference is current transfer ratio specification. TLP785(F) ranges from 50% to 600% @ 5mA, while TLP785(Y,F) ranges from 50% to 150% @ 5mA. TLP785(Y,F) provides tighter CTR control for applications requiring more consistent gain characteristics. Both have identical switching times (2µs rise, 3µs fall) and saturation voltage (400mV max).

Q: Why does VO618A-3 have different current transfer ratio test conditions?

A: VO618A-3 is specified at 1mA input current rather than 5mA. This is a manufacturer characterization choice and does not affect substitution eligibility. The part still meets the minimum 50% CTR requirement and provides 100% to 200% CTR at its specified test condition. Applications must verify that the 1mA test condition aligns with circuit design requirements.

Q: Can TLP785(GR-TP6,F) be used as a direct substitute?

A: TLP785(GR-TP6,F) is electrically equivalent but mechanically different. It uses a 4-SMD surface-mount package instead of through-hole DIP. Direct PCB substitution is not possible without footprint redesign. This variant requires reflow soldering assembly instead of through-hole insertion. Selection is appropriate only when manufacturing process supports surface-mount assembly.

Q: What is the significance of Vce saturation voltage differences?

A: EL816(Y)-V specifies 200mV maximum Vce saturation, while all Toshiba and Vishay substitutes specify 400mV maximum. Lower saturation voltage indicates better transistor saturation characteristics and lower power dissipation in the output stage. The EL816(Y)-V provides superior saturation performance. Applications sensitive to output voltage drop should account for this 200mV difference when selecting substitutes.

Q: Are all substitute parts RoHS compliant?

A: Yes. EL816(Y)-V, TLP785(F), TLP785(Y,F), and VO618A-3 are ROHS3 compliant. TLP785(GR-TP6,F) carries RoHS compliance certification. All parts meet environmental and hazardous substance restrictions for commercial and industrial applications.

Q: Which substitute has the fastest switching response?

A: VO618A-3 has the fastest fall time at 2.3µs and 2µs rise time. TLP785(F), TLP785(GR-TP6,F), and TLP785(Y,F) all have 2µs rise time and 3µs fall time. EL816(Y)-V has 4µs rise time and 3µs fall time. For high-speed switching applications, Toshiba TLP785 variants and Vishay VO618A-3 provide faster response than the original EL816(Y)-V.

Q: What inventory considerations apply to substitute selection?

A: TLP785(GR-TP6,F) has the highest stock level at 13,874 units. VO618A-3 has 5,365 units available. TLP785(F) has 2,332 units. TLP785(Y,F) has 966 units. EL816(Y)-V has 775 units in stock. Long-term supply chain planning should consider these availability levels when selecting substitutes for production volumes.