EL814S(A)(TA)-V Equivalent & Substitute Parts

Part Overview

The EL814S(A)(TA)-V is a 5000Vrms optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides galvanic isolation for AC and DC input signals with a single-channel transistor output configuration in a 4-SMD surface mount package. The part is discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from active product lines that maintain electrical and mechanical compatibility.

Substiute Parts

EL814S(A)(TA)-V

Everlight Electronics Co LtdIn Stock: 771EL814S(A)(TA)-V Datasheet

Current PartRFQ

LTV-814HS

Lite-On Inc.In Stock: 17026LTV-814HS Datasheet

SimilarRFQ

LTV-814HS-TA1

Lite-On Inc.In Stock: 2229LTV-814HS-TA1 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL814S(A)(TA)-V is determined by the following critical parameters that must be maintained or exceeded:

Mandatory Matching Parameters:

• Voltage - Isolation: 5000Vrms (exact match required)
• Number of Channels: 1 (exact match required)
• Output Type: Transistor (exact match required)
• Input Type: AC, DC (exact match required)
• Package / Case: 4-SMD, Gull Wing (exact match required)
• Mounting Type: Surface Mount (exact match required)

Allowable Variation Parameters:

• Voltage - Output (Max): Substitute must support minimum 35V (EL814S(A)(TA)-V rated 80V; substitutes rated 35V are acceptable for applications not requiring full 80V capability)
• Vce Saturation (Max): 200mV (exact match)
• Operating Temperature: Substitute range -30°C ~ 100°C is narrower than original -55°C ~ 110°C; selection depends on application requirements
• Current Transfer Ratio: Varies between main part and substitutes; selection based on application current requirements
• RoHS Status: ROHS3 Compliant (maintained across all parts)

The identified substitutes LTV-814HS and LTV-814HS-TA1 from Lite-On Inc. meet all mandatory matching parameters and maintain electrical isolation and output characteristics within acceptable ranges for standard applications.

Parameter Comparison

Engineering Selection Recommendations

LTV-814HS and LTV-814HS-TA1 Substitution Criteria:

Both LTV-814HS (Tube packaging) and LTV-814HS-TA1 (Tape & Reel packaging) are active products from Lite-On Inc. that provide direct functional substitution for the discontinued EL814S(A)(TA)-V. Selection between these two variants depends on procurement and assembly requirements:

LTV-814HS (Tube Packaging): Suitable for lower-volume applications, prototype development, and manual assembly processes. Inventory availability is 16,958 pieces.

LTV-814HS-TA1 (Tape & Reel Packaging): Suitable for high-volume production runs and automated pick-and-place assembly. Inventory availability is 2,200 pieces.

Critical Design Considerations:

The substitute parts operate within a narrower temperature range (-30°C ~ 100°C versus -55°C ~ 110°C). Applications requiring operation below -30°C or above 100°C must retain the original EL814S(A)(TA)-V or identify alternative solutions.

The substitute parts have a maximum output voltage rating of 35V compared to the original 80V rating. Applications requiring output voltages exceeding 35V must retain the original part or identify alternative solutions.

Both substitute parts maintain 5000Vrms isolation voltage, 200mV Vce saturation, ROHS3 compliance, MSL Level 1, and identical ECCN/HTSUS classifications as the original part.

Frequently Asked Questions (FAQ)

Q: Can LTV-814HS or LTV-814HS-TA1 be used as direct replacements for EL814S(A)(TA)-V in all applications?

A: Direct substitution is valid only for applications operating within -30°C to 100°C temperature range and requiring maximum output voltage of 35V or less. Applications exceeding these parameters require design review and alternative component selection.

Q: What is the difference between LTV-814HS and LTV-814HS-TA1?

A: Both parts are electrically and mechanically identical. The difference is packaging format: LTV-814HS is supplied in Tube packaging for lower-volume applications, while LTV-814HS-TA1 is supplied in Tape & Reel format for automated assembly and high-volume production.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both LTV-814HS and LTV-814HS-TA1 are ROHS3 compliant, matching the compliance status of the original EL814S(A)(TA)-V.

Q: What are the key electrical differences between the original and substitute parts?

A: The original EL814S(A)(TA)-V has higher maximum output voltage (80V versus 35V) and wider operating temperature range (-55°C ~ 110°C versus -30°C ~ 100°C). Current transfer ratios differ due to different measurement conditions (50-150% @ 1mA for original versus 20-80% @ 100mA for substitutes). Rise and fall times are faster in the substitute parts (4µs/3µs versus 7µs/11µs).

Q: What is the isolation voltage rating for the substitute parts?

A: Both LTV-814HS and LTV-814HS-TA1 maintain the same 5000Vrms isolation voltage as the original EL814S(A)(TA)-V.

Q: Are moisture sensitivity levels the same across all three parts?

A: Yes. All three parts have MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which substitute part should be selected for new designs?

A: For new designs, either LTV-814HS or LTV-814HS-TA1 is acceptable based on manufacturing requirements. LTV-814HS-TA1 is preferred for production volumes supporting automated assembly. Verify that application temperature and voltage requirements fall within the substitute part specifications before final selection.