EL3H7(A)(TB)-VG Equivalent & Substitute Parts

Part Overview

The EL3H7(A)(TB)-VG is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides galvanic isolation up to 3750Vrms with a single channel configuration in a 4-SSOP surface mount package. The part is classified as Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained across isolation voltage, current transfer ratio, output characteristics, and package specifications. Alternative part numbers may be required due to inventory availability, supply chain considerations, or specific packaging requirements while maintaining identical functional performance.

Substiute Parts

EL3H7(A)(TB)-VG

Everlight Electronics Co LtdIn Stock: 813EL3H7(A)(TB)-VG Datasheet

Current PartRFQ

EL3H7(A)(EA)-G

Everlight Electronics Co LtdIn Stock: 2858EL3H7(A)(EA)-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL3H7(A)(TB)-VG are identified based on strict equivalence across the following critical parameters:

Isolation Performance: Isolation voltage must equal 3750Vrms. This parameter defines the galvanic separation capability and cannot be reduced.

Channel Configuration: Single channel (1 channel) configuration is required. Multi-channel variants are not substitutes.

Current Transfer Ratio: Minimum 80% and maximum 160% at 5mA input current. This range defines the optical coupling efficiency and must be maintained.

Output Characteristics: Transistor output type with maximum output voltage of 80V and maximum output current of 50mA per channel are mandatory specifications.

Saturation Performance: Vce saturation maximum of 200mV defines the on-state voltage drop and must be preserved.

Switching Speed: Rise and fall times of 5µs and 3µs respectively define the switching performance envelope.

Package Specification: 4-SOIC package with 0.173" width (4.40mm) and surface mount configuration ensures mechanical and electrical compatibility with existing PCB layouts.

Compliance Requirements: RoHS3 compliance and MSL 1 rating must be maintained for supply chain and manufacturing process compatibility.

The substitute part EL3H7(A)(EA)-G meets all these criteria with identical electrical specifications and packaging requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the EL3H7(A)(TB)-VG and EL3H7(A)(EA)-G are Active status products from Everlight Electronics Co Ltd with full RoHS3 compliance and MSL 1 rating. The parts are electrically and mechanically identical across all specified parameters.

Selection between these part numbers is based on packaging format and supply availability. The EL3H7(A)(TB)-VG is supplied in Tape & Reel (TR) format with 750 pieces in current inventory. The EL3H7(A)(EA)-G is supplied in Tape & Reel (TR) format with 2845 pieces in current inventory.

Both parts maintain identical electrical performance, thermal operating range, and compliance certifications. Direct substitution is supported without circuit redesign or performance degradation when switching between these part numbers.

Frequently Asked Questions (FAQ)

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

A: Yes. Both parts are electrically and mechanically identical. All electrical parameters including isolation voltage (3750Vrms), current transfer ratio (80-160% @ 5mA), output voltage (80V max), output current (50mA max), and switching characteristics (5µs rise / 3µs fall time) are identical. Package configuration (4-SOIC, 0.173" width) and mounting type (surface mount) are identical. Direct substitution is supported without circuit modification.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by equivalence across: isolation voltage (3750Vrms), number of channels (1), current transfer ratio range (80-160% @ 5mA), output type (transistor), maximum output voltage (80V), maximum output current (50mA), Vce saturation (200mV max), switching speed (5µs rise / 3µs fall), operating temperature range (-55°C to 110°C), package type (4-SOIC 0.173" width), and compliance status (RoHS3, MSL 1).

Q: Are there differences in packaging format between these parts?

A: Both parts are supplied in Tape & Reel (TR) format. The difference between EL3H7(A)(TB)-VG and EL3H7(A)(EA)-G is the packaging designation suffix, not the physical package or tape configuration. Both are suitable for automated assembly processes.

Q: What is the operating temperature range for both parts?

A: Both EL3H7(A)(TB)-VG and EL3H7(A)(EA)-G operate across -55°C to 110°C. This range is identical for both parts and defines the thermal envelope for circuit design.

Q: Are both parts RoHS3 compliant?

A: Yes. Both EL3H7(A)(TB)-VG and EL3H7(A)(EA)-G are RoHS3 compliant with MSL 1 (unlimited moisture sensitivity level). Compliance certifications are identical.

Q: What is the isolation voltage specification?

A: Both parts provide 3750Vrms galvanic isolation. This isolation voltage is the maximum continuous voltage that can be applied between input and output circuits without breakdown.

Q: What are the current transfer ratio specifications?

A: Both parts maintain a current transfer ratio of 80% minimum to 160% maximum at 5mA input current. This range defines the optical coupling efficiency between the LED input and phototransistor output.