EL3H7(TA)-G Optoisolator Equivalent & Substitute Parts

Part Overview

The EL3H7(TA)-G is an optoisolator with transistor output manufactured by Everlight Electronics Co Ltd. This component provides 3750Vrms isolation voltage in a 4-SSOP surface mount package, designed for DC input applications requiring galvanic isolation with transistor output switching capability. The part is currently in active production status with 38,300 units in stock. Equivalent and substitute parts are identified based on matching electrical specifications, isolation ratings, output characteristics, and mechanical compatibility within the optoisolator category.

Substiute Parts

EL3H7(TA)-G

Everlight Electronics Co LtdIn Stock: 38399EL3H7(TA)-G Datasheet

Current PartRFQ

EL3H7(EA)-VG

Everlight Electronics Co LtdIn Stock: 3901EL3H7(EA)-VG Datasheet

Parametric EquivalentRFQ

EL3H7(TA)-VG

Everlight Electronics Co LtdIn Stock: 29924EL3H7(TA)-VG Datasheet

Parametric EquivalentRFQ

IS3H7

Isocom Components 2004 LTDIn Stock: 45499IS3H7 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the EL3H7(TA)-G are identified based on strict parametric equivalence across the following critical specifications:

Electrical Equivalence Criteria:

• Isolation voltage: 3750Vrms (exact match required)
• Number of channels: 1 (single channel configuration)
• Current transfer ratio range: 50% to 600% @ 5mA (identical performance window)
• Output type: Transistor (same switching mechanism)
• Maximum output voltage: 80V (identical rating)
• Maximum output current: 50mA per channel (identical capacity)
• Vce saturation: 200mV maximum (identical saturation characteristic)
• Input type: DC (same input signal requirement)
• Forward voltage: 1.2V typical (identical LED forward drop)
• Maximum forward current: 50mA (identical LED current rating)

Mechanical & Environmental Equivalence Criteria:

• Mounting type: Surface mount (same assembly process compatibility)
• Package footprint: 4-SOIC with 0.173" width, 4.40mm width (identical PCB layout compatibility)
• Operating temperature: -55°C to 110°C (identical thermal operating range)
• RoHS3 compliance: All substitutes maintain regulatory compliance
• MSL rating: Level 1 (unlimited moisture sensitivity protection)

All identified substitutes maintain identical electrical performance and mechanical compatibility with the main part number EL3H7(TA)-G.

Parameter Comparison

Engineering Selection Recommendations

EL3H7(EA)-VG (Everlight Electronics Co Ltd)

This part is a parametric equivalent to EL3H7(TA)-G with identical electrical specifications and mechanical compatibility. The primary difference is packaging format (Tape & Reel). Both parts maintain ROHS3 compliance and MSL Level 1 rating. Current inventory is 3,852 units. This substitute is suitable for applications where packaging format does not impose constraints.

EL3H7(TA)-VG (Everlight Electronics Co Ltd)

This part is a parametric equivalent to EL3H7(TA)-G with identical electrical specifications and mechanical compatibility. The packaging option differs (Cut Tape & Digi-Reel® versus Tape & Reel), accommodating different supply chain and assembly requirements. ROHS3 compliance and MSL Level 1 rating are maintained. Current inventory is 29,910 units. This substitute is suitable for applications requiring alternative packaging formats and offers higher inventory availability.

IS3H7 (Isocom Components 2004 LTD)

This part is a parametric equivalent from an alternative manufacturer with matching isolation voltage, channel count, current transfer ratio range, output type, voltage and current ratings, and saturation characteristics. Rise and fall times are 6µs and 6µs respectively, compared to 5µs and 3µs for the EL3H7(TA)-G. All other electrical parameters remain identical. ROHS3 compliance and MSL Level 1 rating are maintained. Current inventory is 45,400 units. This substitute provides cross-manufacturer compatibility with the highest inventory availability.

Frequently Asked Questions (FAQ)

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

A: Yes. EL3H7(EA)-VG is a parametric equivalent with identical electrical specifications, isolation voltage, current transfer ratio, output characteristics, operating temperature range, and package footprint. The difference is packaging format (Tape & Reel). Direct substitution is supported for applications where packaging format does not impose assembly constraints.

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

A: Both parts are manufactured by Everlight Electronics Co Ltd with identical electrical specifications and mechanical compatibility. The primary difference is packaging option: EL3H7(TA)-VG is supplied in Cut Tape & Digi-Reel® format, while EL3H7(TA)-G is supplied in Tape & Reel format. Electrical performance and PCB footprint compatibility are identical.

Q: Is IS3H7 from Isocom Components a suitable substitute?

A: Yes. IS3H7 is a parametric equivalent with matching isolation voltage (3750Vrms), channel count (1), current transfer ratio (50% to 600% @ 5mA), output type (transistor), maximum output voltage (80V), maximum output current (50mA), Vce saturation (200mV), operating temperature range (-55°C to 110°C), and package footprint (4-SOIC). Rise and fall times are 6µs and 6µs respectively, compared to 5µs and 3µs for the EL3H7(TA)-G. This represents a cross-manufacturer substitute with full electrical compatibility.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All identified substitute parts (EL3H7(EA)-VG, EL3H7(TA)-VG, and IS3H7) maintain ROHS3 compliance status, matching the regulatory compliance of the main part number EL3H7(TA)-G.

Q: What is the moisture sensitivity level for these optoisolators?

A: All parts including the main number EL3H7(TA)-G and all substitutes carry MSL Level 1 (Unlimited) rating, indicating no moisture sensitivity restrictions during storage and handling.

Q: Can these parts be used interchangeably in high-speed switching applications?

A: Rise and fall time specifications differ slightly between manufacturers. EL3H7(TA)-G, EL3H7(EA)-VG, and EL3H7(TA)-VG specify 5µs rise time and 3µs fall time. IS3H7 specifies 6µs rise time and 6µs fall time. For applications with strict timing requirements, these differences must be evaluated against circuit design specifications.

Q: What packaging options are available for these substitutes?

A: EL3H7(TA)-G and EL3H7(EA)-VG are supplied in Tape & Reel (TR) format. EL3H7(TA)-VG is supplied in Cut Tape (CT) & Digi-Reel® format. IS3H7 is supplied in Tape & Reel (TR) format. Packaging selection depends on assembly equipment compatibility and supply chain requirements.

Q: Are there inventory differences between the main part and substitutes?

A: Yes. EL3H7(TA)-G has 38,300 units in stock. EL3H7(EA)-VG has 3,852 units. EL3H7(TA)-VG has 29,910 units. IS3H7 has 45,400 units. Inventory levels should be considered for supply chain planning and lead time requirements.