EL816(S)(C)(TD) Optoisolator Equivalent & Substitute Parts

Part Overview

The EL816(S)(C)(TD) is a 5000Vrms isolation optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This single-channel device operates in the 4-SMD surface mount package and is classified as Active product status. The component provides galvanic isolation suitable for applications requiring high voltage isolation with DC input control and transistor output switching capability. Equivalent and substitute parts are identified based on matching electrical isolation ratings, output characteristics, and mechanical compatibility within the optoisolator category.

Substiute Parts

EL816(S)(C)(TD)

Everlight Electronics Co LtdIn Stock: 854EL816(S)(C)(TD) Datasheet

Current PartRFQ

LTV-816S

Lite-On Inc.In Stock: 1997LTV-816S Datasheet

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LTV-816S-TA1

Lite-On Inc.In Stock: 6388LTV-816S-TA1 Datasheet

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VO618A-4X017T

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

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL816(S)(C)(TD) are qualified based on the following criteria:

Primary Matching Parameters:

• Voltage - Isolation: 5000Vrms or higher
• Number of Channels: 1
• Output Type: Transistor
• Voltage - Output (Max): 80V
• Current - Output / Channel: 50mA
• Package / Case: 4-SMD, Gull Wing
• Mounting Type: Surface Mount
• Input Type: DC

Secondary Compatibility Parameters:

• Current Transfer Ratio range overlap
• Rise / Fall Time specifications
• Vce Saturation characteristics
• Operating Temperature range coverage
• RoHS3 Compliance

All identified substitute parts meet the primary matching parameters and maintain functional equivalence within the specified electrical and mechanical constraints.

Parameter Comparison

Engineering Selection Recommendations

LTV-816S and LTV-816S-TA1 (Lite-On Inc.)

The LTV-816S series from Lite-On Inc. provides direct functional equivalence to the EL816(S)(C)(TD). Both part numbers share identical isolation voltage (5000Vrms), output characteristics (80V max, 50mA), rise/fall times (4µs, 3µs), and Vce saturation (200mV). The LTV-816S-TA1 variant offers higher inventory availability (6300 pcs) in Tape & Reel packaging, suitable for automated assembly processes. The LTV-816S in Tube packaging (1900 pcs) accommodates manual or lower-volume assembly requirements. Both variants maintain ROHS3 compliance and operate across -50°C to 110°C, covering the EL816 operating range with a 5°C minimum temperature offset. Current Transfer Ratio specifications differ (50-600% vs. 200-400%), with the LTV-816S series providing broader CTR tolerance.

VO618A-4X017T (Vishay Semiconductor Opto Division)

The VO618A-4X017T represents a higher-performance alternative with enhanced isolation voltage (5300Vrms) and faster switching characteristics (2µs rise/fall time vs. 4µs/3µs). This part maintains 80V output voltage and 50mA current capacity. The Vce saturation specification (400mV) is higher than the EL816 (200mV), requiring circuit-level evaluation for saturation-sensitive applications. Operating temperature range (-55°C to 110°C) matches the EL816 specification. Current Transfer Ratio is specified at 1mA test condition (160-320%) rather than 5mA, indicating different characterization methodology. Tape & Reel packaging (12520 pcs inventory) supports high-volume production. ROHS3 compliance is confirmed.

Product Status and Compliance

All substitute parts maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment with the EL816(S)(C)(TD).

Frequently Asked Questions (FAQ)

Q: Can LTV-816S and LTV-816S-TA1 be used interchangeably with EL816(S)(C)(TD)?

A: Yes. Both Lite-On parts meet the primary electrical and mechanical specifications: 5000Vrms isolation, 1 channel, transistor output, 80V max output, 50mA output current, 4-SMD gull wing package, and surface mount configuration. The packaging format differs (Tube vs. Tape & Reel), which affects assembly process compatibility but not electrical function.

Q: What is the difference between LTV-816S and LTV-816S-TA1?

A: Both parts are electrically identical. The difference is packaging format: LTV-816S is supplied in Tube packaging (1900 pcs available), while LTV-816S-TA1 is supplied in Tape & Reel format (6300 pcs available). Tape & Reel packaging is standard for automated pick-and-place assembly; Tube packaging is used for manual assembly or lower-volume applications.

Q: Why does VO618A-4X017T have different Current Transfer Ratio specifications?

A: The VO618A-4X017T specifies CTR at 1mA input current (160-320%), while EL816 specifies CTR at 5mA (200-400%). These represent different characterization test points. The VO618A-4X017T demonstrates faster switching (2µs rise/fall vs. 4µs/3µs) and higher isolation voltage (5300Vrms vs. 5000Vrms).

Q: Is the higher Vce saturation (400mV) of VO618A-4X017T a limitation?

A: The VO618A-4X017T Vce saturation of 400mV is twice that of EL816 (200mV). Applications with tight saturation voltage budgets or requiring minimal collector-emitter voltage drop should evaluate circuit performance. Applications with relaxed saturation requirements are unaffected.

Q: What is the minimum operating temperature difference between EL816 and LTV-816S?

A: EL816 operates from -55°C; LTV-816S operates from -50°C. The 5°C difference represents a minor constraint. Applications requiring operation below -50°C must use EL816 or VO618A-4X017T.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. EL816(S)(C)(TD), LTV-816S, LTV-816S-TA1, and VO618A-4X017T are all ROHS3 compliant, meeting regulatory requirements for hazardous substance restrictions.

Q: Which substitute part has the highest inventory availability?

A: VO618A-4X017T has the highest inventory (12520 pcs), followed by LTV-816S-TA1 (6300 pcs) and LTV-816S (1900 pcs). EL816(S)(C)(TD) has 807 pcs available.