VOS618A-2T Equivalent & Substitute Parts

Part Overview

The VOS618A-2T is an optoisolator with transistor output manufactured by Vishay Semiconductor Opto Division. This component provides galvanic isolation up to 3750Vrms with a single channel configuration in a 4-SSOP surface mount package. The part is currently active in production with extensive inventory availability. Substitute parts are identified when they maintain identical electrical specifications and mechanical compatibility, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

VOS618A-2T

Vishay Semiconductor Opto DivisionIn Stock: 26558VOS618A-2T Datasheet

Current PartRFQ

VOS618A-2X001T

Vishay Semiconductor Opto DivisionIn Stock: 60438VOS618A-2X001T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the VOS618A-2T are identified based on strict equivalence across the following critical parameters:

• Isolation voltage: 3750Vrms
• Number of channels: 1
• Output type: Transistor
• Current transfer ratio range: 63% to 125% @ 1mA
• Maximum output voltage: 80V
• Maximum output current per channel: 50mA
• Vce saturation: 400mV maximum
• Operating temperature range: -55°C to 110°C
• Package type: 4-SOIC (0.173", 4.40mm Width)
• Mounting type: Surface Mount
• Product status: Active

The VOS618A-2X001T meets all these criteria and is classified as a parametric equivalent. Both parts share identical electrical performance specifications and mechanical compatibility, permitting direct substitution in applications requiring single-channel optoisolation at 3750Vrms with transistor output configuration.

Parameter Comparison

Engineering Selection Recommendations

Both VOS618A-2T and VOS618A-2X001T are active production parts with ROHS3 compliance and MSL Level 1 rating. Selection between these parts may be based on inventory availability and supply chain considerations. The VOS618A-2T currently maintains 26,475 pieces in stock, while VOS618A-2X001T maintains 60,400 pieces. Both parts carry identical electrical and mechanical specifications, supporting direct substitution without circuit redesign or performance impact. REACH status differs between the two parts; VOS618A-2T is REACH Unaffected while VOS618A-2X001T is Vendor Undefined. For applications subject to REACH compliance requirements, VOS618A-2T is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Can VOS618A-2X001T replace VOS618A-2T in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical specifications, isolation voltage, output characteristics, and 4-SOIC package dimensions. Direct substitution is supported without circuit modification.

Q: Are there differences in isolation voltage between these parts?

A: No. Both parts provide 3750Vrms isolation voltage with identical current transfer ratio specifications of 63% to 125% @ 1mA.

Q: Do these parts have the same package footprint?

A: Yes. Both use the 4-SOIC package with 0.173" width (4.40mm). PCB layout and component placement remain unchanged during substitution.

Q: What is the difference in REACH compliance status?

A: VOS618A-2T is REACH Unaffected, while VOS618A-2X001T is Vendor Undefined. For applications requiring confirmed REACH compliance documentation, VOS618A-2T is the specified choice.

Q: Are both parts suitable for the full operating temperature range?

A: Yes. Both parts operate across -55°C to 110°C with identical thermal specifications.

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

A: Both parts carry MSL Level 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.