EL3H7(C)(TA)-G Optoisolator Equivalent & Substitute Parts

Part Overview

The EL3H7(C)(TA)-G is an active optoisolator manufactured by Everlight Electronics Co Ltd, classified as a transistor output optoisolator with 3750Vrms isolation voltage. This component is designed for applications requiring galvanic isolation between input and output circuits in surface mount configurations. The part maintains Active product status with substantial inventory availability (185200 pcs). Substitute parts are identified when equivalent electrical and mechanical parameters are required due to supply constraints, procurement optimization, or design flexibility needs.

Substiute Parts

EL3H7(C)(TA)-G

Everlight Electronics Co LtdIn Stock: 185304EL3H7(C)(TA)-G Datasheet

Current PartRFQ

EL3H7(C)(TA)-VG

Everlight Electronics Co LtdIn Stock: 2174EL3H7(C)(TA)-VG Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL3H7(C)(TA)-G is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Isolation voltage: 3750Vrms (exact match required)
• Number of channels: 1 (exact match required)
• Current transfer ratio range: 200% to 400% @ 5mA (exact match required)
• Output type: Transistor (exact match required)
• Maximum output voltage: 80V (exact match required)
• Maximum output current: 50mA per channel (exact match required)
• Vce saturation: 200mV maximum (exact match required)
• Operating temperature range: -55°C to 110°C (exact match required)

Mechanical Equivalence Criteria:

• Package type: 4-SOIC with 0.173" width, 4.40mm width (exact match required)
• Mounting type: Surface Mount (exact match required)

Compliance Equivalence Criteria:

• RoHS3 Compliance (required)
• Moisture Sensitivity Level 1 (required)

The substitute part EL3H7(C)(TA)-VG meets all electrical, mechanical, and compliance requirements and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: EL3H7(C)(TA)-G

The EL3H7(C)(TA)-G is the recommended primary selection based on superior inventory availability (185200 pcs) and Active product status. This part carries ROHS3 compliance and Moisture Sensitivity Level 1 certification, meeting environmental and handling requirements for industrial applications.

Substitute Selection: EL3H7(C)(TA)-VG

The EL3H7(C)(TA)-VG is a direct parametric equivalent suitable for use when the primary part is unavailable. This substitute maintains identical electrical specifications, mechanical compatibility, and compliance certifications. The part is Active status with ROHS3 compliance and REACH Unaffected designation. Current inventory is 2100 pcs. Selection of this substitute does not require design modification or circuit re-evaluation, as all critical parameters remain unchanged.

Interchangeability Statement

Both parts are pin-compatible, functionally equivalent, and suitable for direct substitution in existing designs without PCB layout modification or firmware changes.

Frequently Asked Questions (FAQ)

Q: Can EL3H7(C)(TA)-VG be used as a direct replacement for EL3H7(C)(TA)-G?

A: Yes. The EL3H7(C)(TA)-VG is a direct parametric equivalent with identical isolation voltage (3750Vrms), current transfer ratio (200-400% @ 5mA), output specifications (80V max, 50mA max), and package configuration (4-SOIC surface mount). No circuit modifications are required.

Q: Are there any differences in compliance or environmental certifications between these parts?

A: Both parts are ROHS3 compliant with Moisture Sensitivity Level 1. The EL3H7(C)(TA)-VG carries additional REACH Unaffected designation. Both meet the same environmental and handling standards.

Q: What is the significance of the different inventory levels?

A: The EL3H7(C)(TA)-G has substantially higher inventory (185200 pcs vs 2100 pcs). For high-volume production, the primary part is preferred. The substitute should be considered when primary part availability is constrained.

Q: Are the rise and fall times identical between both parts?

A: Yes. Both parts specify 5µs rise time and 3µs fall time, ensuring identical switching performance in timing-critical applications.

Q: Can these parts be used interchangeably in new designs?

A: Yes. Both parts meet identical electrical and mechanical specifications. Design engineers may select either part based on availability and supply chain considerations without design modification.

Q: What is the package compatibility between these parts?

A: Both parts use 4-SOIC surface mount packages with 0.173" width and 4.40mm width dimensions. PCB footprints and reflow profiles are identical.

Q: Are there any temperature range limitations that differ between the parts?

A: No. Both parts operate across the identical temperature range of -55°C to 110°C with no derating differences.