VOS615A-X001T Optoisolator Equivalent & Substitute Parts

Part Overview

The VOS615A-X001T is a 3.75kV isolation optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This single-channel device operates across -55°C to 110°C and is packaged in a 4-SSOP surface mount configuration. The part is currently active in production with 1310 units in stock. Equivalent substitute parts from Everlight Electronics Co Ltd are available to support design flexibility, supply chain continuity, and application-specific parameter requirements.

Substiute Parts

VOS615A-X001T

Vishay Semiconductor Opto DivisionIn Stock: 1323VOS615A-X001T Datasheet

Current PartRFQ

EL3H7(A)(EA)-G

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

MFR RecommendedRFQ

EL3H7(A)-G

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

MFR RecommendedRFQ

EL3H7(B)(TA)-VG

Everlight Electronics Co LtdIn Stock: 1519EL3H7(B)(TA)-VG Datasheet

MFR RecommendedRFQ

EL3H7(B)-G

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

MFR RecommendedRFQ

EL3H7(EA)-VG

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the VOS615A-X001T is determined by strict equivalence across the following critical parameters:

• Isolation Voltage: 3750Vrms (all substitutes match)
• Number of Channels: 1 (all substitutes match)
• Output Type: Transistor (all substitutes match)
• Maximum Output Voltage: 80V (all substitutes match)
• Maximum Output Current: 50mA (all substitutes match)
• Package Type: 4-SOIC / 4-SSOP (all substitutes match)
• Operating Temperature Range: -55°C ~ 110°C (all substitutes match)
• Mounting Type: Surface Mount (all substitutes match)
• RoHS Compliance: ROHS3 Compliant (all substitutes match)
• MSL Rating: 1 (Unlimited) (all substitutes match)

All five Everlight EL3H7 variants meet these core substitution criteria. Differences in Current Transfer Ratio (CTR) specifications and Vce Saturation values represent performance variations within acceptable design margins for this optoisolator category.

Parameter Comparison

Engineering Selection Recommendations

All five Everlight EL3H7 variants are functionally equivalent to the VOS615A-X001T for applications requiring 3.75kV isolation, single-channel transistor output, and 4-SSOP surface mount packaging. All substitute parts maintain active product status and ROHS3 compliance.

EL3H7(EA)-VG offers the highest inventory availability (3852 units) and matches the VOS615A-X001T Current Transfer Ratio maximum specification (600% @ 5mA), making it the primary substitute for direct replacement in existing designs.

EL3H7(B)(TA)-VG and EL3H7(B)-G provide elevated Current Transfer Ratio performance (130–260% @ 5mA) with improved Vce Saturation characteristics (200mV vs. 400mV), suitable for applications requiring enhanced switching efficiency.

EL3H7(A)(EA)-G and EL3H7(A)-G deliver moderate Current Transfer Ratio performance (80–160% @ 5mA) with equivalent Vce Saturation improvement, available in Tape & Reel and Tube packaging formats respectively.

Packaging format selection depends on assembly process requirements: Tape & Reel for automated pick-and-place operations, Tube for manual assembly, and Cut Tape & Digi-Reel® for mixed-volume production.

Frequently Asked Questions (FAQ)

Q: Can EL3H7 variants be used as direct pin-for-pin replacements for VOS615A-X001T?

A: Yes. All EL3H7 variants share identical pinout, package dimensions (4-SOIC, 0.173" width), and electrical interface specifications (3750Vrms isolation, 80V maximum output, 50mA output current). No circuit modifications are required.

Q: What is the significance of the different Current Transfer Ratio specifications?

A: Current Transfer Ratio (CTR) defines the ratio of output collector current to input LED current. The VOS615A-X001T specifies 40–600% @ 10mA. EL3H7 variants specify CTR @ 5mA, a different test condition. EL3H7(EA)-VG matches the 600% maximum, while EL3H7(B) variants provide higher minimum CTR (130%), indicating tighter performance binning. Selection depends on circuit design margins and input current availability.

Q: Are there compliance or certification differences between the main part and substitutes?

A: All parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. EL3H7(A)-G, EL3H7(B)(TA)-VG, and EL3H7(EA)-VG carry REACH Unaffected status where specified. No compliance barriers exist for substitution.

Q: How do packaging format options affect component selection?

A: Tape & Reel (TR) packaging is standard for automated surface mount assembly. Tube packaging accommodates manual or semi-automated processes. Cut Tape & Digi-Reel® provides flexibility for mixed-volume production. All formats contain identical die and electrical performance; selection is process-dependent only.

Q: What is the impact of Vce Saturation differences (400mV vs. 200mV)?

A: Vce Saturation represents the collector-emitter voltage when the transistor output is fully saturated. The VOS615A-X001T specifies 400mV maximum; all EL3H7 variants specify 200mV maximum. Lower saturation voltage reduces power dissipation in the output stage, improving efficiency. This is a performance advantage with no compatibility concerns.

Q: Which substitute part offers the best inventory availability?

A: EL3H7(EA)-VG provides the highest stock level at 3852 units, followed by EL3H7(A)(EA)-G at 2845 units. Both are available in Tape & Reel format suitable for production assembly.