EL3H7(B)-VG Optoisolator Equivalent & Substitute Parts

Part Overview

The EL3H7(B)-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 device is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, packaging preferences, or supply chain considerations.

Substiute Parts

EL3H7(B)-VG

Everlight Electronics Co LtdIn Stock: 775EL3H7(B)-VG Datasheet

Current PartRFQ

EL3H7(B)-G

Everlight Electronics Co LtdIn Stock: 1683EL3H7(B)-G Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the EL3H7(B)-VG with equivalent parts is determined by strict alignment of the following critical parameters:

Electrical Parameters:

• Voltage isolation rating: 3750Vrms
• Current transfer ratio range: 130% to 260% @ 5mA
• Output type: Transistor
• Maximum output voltage: 80V
• Maximum output current per channel: 50mA
• Vce saturation: 200mV maximum
• Input type: DC
• Rise/fall time: 5µs / 3µs

Mechanical Parameters:

• Mounting type: Surface Mount
• Package configuration: 4-SOIC (0.173", 4.40mm Width)
• Supplier device package: 4-SSOP
• Number of channels: 1

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)
• Product Status: Active

The EL3H7(B)-G is identified as a parametric equivalent based on identical electrical specifications and mechanical form factor. The primary distinction is packaging format (Tube versus standard packaging).

Parameter Comparison

Engineering Selection Recommendations

The EL3H7(B)-G serves as a direct parametric equivalent to the EL3H7(B)-VG. Both components share identical electrical characteristics, thermal operating range, and mechanical form factor. Selection between these parts is based on packaging and supply considerations rather than functional differences.

Both parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment for current applications. The Moisture Sensitivity Level of 1 (Unlimited) indicates no special moisture handling requirements during storage or assembly.

The 4-SSOP package configuration in both variants ensures compatibility with standard surface mount assembly processes and PCB layouts designed for this form factor.

Frequently Asked Questions (FAQ)

Q: Can the EL3H7(B)-G replace the EL3H7(B)-VG in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, isolation voltage, current transfer ratios, output characteristics, and operating temperature range. The 4-SOIC package dimensions are identical, ensuring PCB footprint compatibility.

Q: What is the difference between EL3H7(B)-VG and EL3H7(B)-G?

A: The primary difference is packaging format. The EL3H7(B)-VG uses standard packaging, while the EL3H7(B)-G is supplied in Tube packaging. All electrical and mechanical parameters are identical.

Q: Are both parts ROHS3 compliant?

A: Yes. Both the EL3H7(B)-VG and EL3H7(B)-G are ROHS3 compliant with Moisture Sensitivity Level 1 (Unlimited).

Q: What is the isolation voltage rating for these optoisolators?

A: Both parts provide 3750Vrms galvanic isolation, suitable for high-voltage isolation applications.

Q: What is the maximum output current per channel?

A: The maximum output current per channel is 50mA for both parts.

Q: Are these parts suitable for high-temperature applications?

A: Both parts operate across the temperature range of -55°C to 110°C, supporting extended industrial temperature requirements.

Q: What is the current transfer ratio specification?

A: Both parts specify a current transfer ratio of 130% minimum to 260% maximum at 5mA input current.

Q: Can these parts be used interchangeably in automated assembly?

A: Yes, provided the assembly process accommodates the specific packaging format (standard versus Tube). The 4-SOIC package dimensions are identical for both variants.