EL3H7(A)-VG Optoisolator Equivalent & Substitute Parts

Part Overview

The EL3H7(A)-VG is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd, designed for high-voltage isolation applications. This component provides 3750Vrms isolation voltage in a compact 4-SSOP surface mount package. The part is currently in active production status with 747 units available in inventory.

Substitute parts are identified when design requirements permit component interchange due to identical or compatible electrical and mechanical specifications. Alternative part numbers may be necessary due to inventory availability, supply chain considerations, or packaging format preferences while maintaining full functional equivalence.

Substiute Parts

EL3H7(A)-VG

Everlight Electronics Co LtdIn Stock: 805EL3H7(A)-VG Datasheet

Current PartRFQ

EL3H7(A)-G

Everlight Electronics Co LtdIn Stock: 2115EL3H7(A)-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the EL3H7(A)-VG is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Isolation voltage: 3750Vrms
• Number of channels: 1
• Current transfer ratio range: 80% to 160% @ 5mA
• Output type: Transistor
• Maximum output voltage: 80V
• Maximum output current per channel: 50mA
• Vce saturation: 200mV maximum
• Rise and fall times: 5µs and 3µs respectively
• Input type: DC
• Operating temperature range: -55°C to 110°C

Mechanical Specifications:

• Package type: 4-SOIC (0.173", 4.40mm Width)
• Mounting type: Surface Mount
• Supplier device package: 4-SSOP

Compliance Requirements:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

The substitute part EL3H7(A)-G meets all electrical and mechanical requirements for direct substitution. The primary difference is packaging format (Tube versus standard packaging), which does not affect component functionality or performance.

Parameter Comparison

Engineering Selection Recommendations

Both EL3H7(A)-VG and EL3H7(A)-G are active production components from Everlight Electronics Co Ltd with identical electrical and mechanical specifications. Selection between these parts is based on the following factors:

EL3H7(A)-VG: Primary part number with 747 units in current inventory. Suitable for applications where standard packaging is specified or preferred.

EL3H7(A)-G: Parametric equivalent supplied in Tube packaging format with 2028 units in current inventory. Functionally identical to EL3H7(A)-VG with higher stock availability. Suitable for high-volume production runs or applications where tube packaging is acceptable.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Selection should be based on packaging requirements, inventory availability, and supply chain logistics rather than electrical performance considerations.

Frequently Asked Questions (FAQ)

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

A: Yes. The EL3H7(A)-G is a parametric equivalent with identical electrical specifications, isolation voltage, output characteristics, and operating temperature range. The only difference is the packaging format (Tube versus standard packaging). Both components are pin-compatible and functionally interchangeable in circuit applications.

Q: What is the difference between the two part numbers?

A: The EL3H7(A)-VG and EL3H7(A)-G differ only in packaging format. Both are manufactured by Everlight Electronics Co Ltd and share the same base product number EL3H7. The suffix designates the packaging type. All electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when substituting between these parts?

A: No compatibility concerns exist. Both parts use the same 4-SOIC (0.173", 4.40mm Width) package with surface mount configuration. PCB footprints, solder pad layouts, and component placement are identical. Substitution requires no circuit board redesign or layout modifications.

Q: Which part should be selected for new designs?

A: Either part is suitable for new designs. Selection should be based on packaging preference and supply chain availability. The EL3H7(A)-G offers higher inventory levels (2028 units versus 747 units), which may provide supply chain advantages for production quantities.

Q: Do both parts meet the same compliance standards?

A: Yes. Both EL3H7(A)-VG and EL3H7(A)-G are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Compliance certifications are identical across both part numbers.

Q: What is the isolation voltage specification?

A: Both parts provide 3750Vrms isolation voltage, suitable for high-voltage isolation applications requiring galvanic separation between input and output circuits.