EL816(S)(TU)-V Equivalent & Substitute Parts

Part Overview

The EL816(S)(TU)-V is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 5000Vrms isolation in a 4-SMD surface mount package, designed for single-channel DC input applications with 50mA output current capability. The part is currently active in production with 674 units in stock. Equivalent and substitute parts are identified to support procurement flexibility, design redundancy, and supply chain continuity for applications requiring optoisolation functionality within specified electrical and mechanical parameters.

Substiute Parts

EL816(S)(TU)-V

Everlight Electronics Co LtdIn Stock: 778EL816(S)(TU)-V Datasheet

Current PartRFQ

EL8171S1(TU)-G

Everlight Electronics Co LtdIn Stock: 5131EL8171S1(TU)-G Datasheet

Parametric EquivalentRFQ

VO618A-3X017T

Vishay Semiconductor Opto DivisionIn Stock: 41971VO618A-3X017T Datasheet

SimilarRFQ

VO618A-4X017T

Vishay Semiconductor Opto DivisionIn Stock: 12536VO618A-4X017T Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL816(S)(TU)-V are identified based on strict parameter matching within the optoisolator transistor output category. The substitution logic is based on the following critical parameters:

Isolation Voltage: Minimum 5000Vrms (substitute parts with 5300Vrms or higher meet or exceed this requirement)

Output Type: Transistor configuration required

Number of Channels: Single channel (1 channel)

Output Voltage Rating: Maximum 80V

Output Current: 50mA per channel

Input Type: DC

Package Configuration: 4-SMD, Gull Wing surface mount

Operating Temperature Range: -55°C to 110°C

Compliance: ROHS3 Compliant, Active product status

Parts are grouped into two categories: parametric equivalents (identical isolation voltage and core specifications) and similar alternatives (higher isolation voltage with compatible electrical characteristics).

Parameter Comparison

Engineering Selection Recommendations

EL8171S1(TU)-G (Parametric Equivalent): This Everlight part maintains identical isolation voltage (5000Vrms), channel count, output type, and electrical ratings as the EL816(S)(TU)-V. Both parts are ROHS3 compliant and active in production. The EL8171S1(TU)-G is available in higher quantity (5099 units) and is packaged in Tape & Reel format. Selection of this part is appropriate when supply of the primary part is constrained and packaging format compatibility is confirmed.

VO618A-3X017T and VO618A-4X017T (Similar Alternatives): Both Vishay parts provide higher isolation voltage (5300Vrms) compared to the EL816(S)(TU)-V specification of 5000Vrms. All other critical parameters—output type, channel count, voltage and current ratings, operating temperature range, package configuration, and compliance status—are compatible. These parts are suitable for applications where higher isolation margin is acceptable. The VO618A-4X017T offers higher current transfer ratio (160-320% @ 1mA) compared to the EL816(S)(TU)-V (50-600% @ 5mA), and both Vishay parts feature faster switching times. Inventory availability for Vishay parts is significantly higher (41943 and 12520 units respectively).

All substitute parts maintain ROHS3 compliance and active product status, supporting long-term design reliability and supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the EL8171S1(TU)-G directly replace the EL816(S)(TU)-V in existing designs?

A: Yes. The EL8171S1(TU)-G maintains identical isolation voltage (5000Vrms), single-channel transistor output configuration, 80V maximum output voltage, 50mA output current, and operating temperature range. Both parts use 4-SMD Gull Wing surface mount packaging. Verification of tape & reel packaging compatibility with assembly equipment is required.

Q: What is the primary difference between the Everlight EL816(S)(TU)-V and the Vishay VO618A series?

A: The Vishay VO618A-3X017T and VO618A-4X017T provide 5300Vrms isolation voltage compared to 5000Vrms for the EL816(S)(TU)-V. All other critical electrical parameters—output type, channel count, voltage and current ratings, and operating temperature—are identical. The Vishay parts feature faster rise and fall times (2µs each) compared to the EL816(S)(TU)-V (4µs and 3µs respectively).

Q: Are there packaging format differences between substitute parts?

A: Yes. The EL816(S)(TU)-V packaging format is not specified in available data. The EL8171S1(TU)-G is supplied in Tape & Reel (TR) format. The VO618A-3X017T is available in Cut Tape (CT) & Digi-Reel® format, while the VO618A-4X017T is supplied in Tape & Reel (TR) format. Confirm packaging compatibility with your assembly process before part selection.

Q: Do all substitute parts meet the same compliance requirements?

A: Yes. All listed substitute parts—EL8171S1(TU)-G, VO618A-3X017T, and VO618A-4X017T—are ROHS3 compliant and maintain active product status. ECCN classification (EAR99) and HTSUS code (8541.49.8000) are identical across all parts.

Q: What is the significance of higher isolation voltage in the Vishay VO618A parts?

A: The VO618A series provides 5300Vrms isolation compared to 5000Vrms for the EL816(S)(TU)-V. This represents a 6% increase in isolation margin. Applications requiring the minimum 5000Vrms specification can use either part. Applications with higher isolation requirements or design margin preferences may benefit from the Vishay alternative.

Q: How do current transfer ratios differ between parts?

A: The EL816(S)(TU)-V specifies 50-600% current transfer ratio at 5mA input. The EL8171S1(TU)-G maintains identical specifications (50-600% @ 5mA). The VO618A-3X017T specifies 100-200% @ 1mA, and the VO618A-4X017T specifies 160-320% @ 1mA. These differences reflect different measurement conditions and part design characteristics. Verify current transfer ratio requirements for your specific application before selection.