V27MA1S Equivalent & Substitute Parts

Part Overview

The V27MA1S is a 27V 40A Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse in SOD-83A axial through-hole packaging. This component is designed for transient voltage protection in electronic circuits and is currently in active production status. Finding equivalent substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles.

Substiute Parts

V27MA1S

LittelfuseIn Stock: 804V27MA1S Datasheet

Current PartRFQ

V27MA1B

Littelfuse Inc.In Stock: 2668V27MA1B Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V27MA1S are identified based on strict parametric equivalence within the Littelfuse MA series varistor family. The substitution criteria are:

• Identical varistor voltage rating (27 V typical)
• Identical surge current rating (40 A)
• Identical package and mounting type (SOD-83A Axial, Through Hole)
• Identical number of circuits (1 Circuit)
• Matching voltage range specifications (24 V minimum, 31 V maximum)
• Identical operating temperature range (-40°C ~ 85°C)
• Equivalent compliance certifications (ROHS3, REACH Unaffected)

The V27MA1B meets all these criteria and is classified as a parametric equivalent within the same product series.

Parameter Comparison

Engineering Selection Recommendations

Both the V27MA1S and V27MA1B are active production components from Littelfuse with identical electrical and mechanical specifications. Selection between these parts should be based on:

• Availability and inventory status: V27MA1B currently has higher stock availability (2568 Pcs vs. 694 Pcs)
• Energy rating variance: V27MA1B provides marginally higher energy dissipation (0.11 J vs. 0.1 J), which may offer additional margin in transient protection applications
• Compliance requirements: Both parts meet ROHS3 and REACH requirements, suitable for regulated markets
• Supply chain continuity: Either part can be selected as a direct substitute without circuit redesign

Frequently Asked Questions (FAQ)

Q: Can V27MA1B be used as a direct replacement for V27MA1S in existing designs?

A: Yes. Both parts share identical electrical ratings (27 V typical, 40 A surge), identical package geometry (SOD-83A Axial), and identical mounting type (Through Hole). No circuit modifications are required.

Q: What is the difference between V27MA1S and V27MA1B?

A: The primary difference is energy rating: V27MA1B is rated at 0.11 J compared to V27MA1S at 0.1 J. All other electrical and mechanical parameters are identical.

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

A: Yes. Both V27MA1S and V27MA1B operate across the same temperature range of -40°C to 85°C and are suitable for equivalent thermal environments.

Q: Do these parts require any special handling or storage considerations?

A: Both parts have Moisture Sensitivity Level (MSL) rating of 1 (Unlimited), indicating no special moisture control requirements during storage or handling.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under the same ECCN (EAR99) and HTSUS (8533.40.4000) codes.