V275LC4 Equivalent & Substitute Parts

Part Overview

The V275LC4 is a 430 V, 1.2 kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This component features a through-hole disc package (7mm) and is rated for single-circuit protection with an operating temperature range of -55°C to 85°C.

The V275LC4 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Substiute Parts

V275LC4

Littelfuse Inc.In Stock: 965V275LC4 Datasheet

Current PartRFQ

V275LC4P

Littelfuse Inc.In Stock: 1056V275LC4P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V275LC4 is determined by strict equivalence across electrical and mechanical parameters. The following criteria define valid substitutes:

• Varistor voltage rating within the specified range (387 V – 473 V typical)
• Surge current capacity of 1.2 kA or greater
• Energy absorption rating of 23 J or greater
• Single-circuit configuration
• Through-hole mounting with disc 7mm package geometry
• Operating temperature range of -55°C to 85°C or broader
• RoHS3 compliance and MSL 1 rating

The V275LC4P meets all substitution criteria and is classified as a direct equivalent. This part maintains identical electrical specifications and mechanical form factor while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

The V275LC4P is the primary substitute for the obsolete V275LC4. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications across all critical parameters. The V275LC4P carries active product status, ensuring ongoing availability and supply chain support.

Selection of the V275LC4P is appropriate for new designs, production continuity, and field replacements. Both parts satisfy ROHS3 compliance requirements and carry MSL 1 rating, indicating compatibility with standard handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the V275LC4P be used as a direct replacement for the V275LC4?

A: Yes. The V275LC4P is electrically and mechanically equivalent to the V275LC4. All voltage ratings, surge current capacity, energy absorption, and package dimensions are identical. The primary difference is product status: V275LC4P is active, while V275LC4 is obsolete.

Q: What is the difference between the V275LC4 and V275LC4P packaging?

A: The V275LC4 is supplied in standard packaging, while the V275LC4P is supplied in bulk packaging. Both maintain the same disc 7mm through-hole form factor and are suitable for identical PCB mounting applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the V275LC4 and V275LC4P are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating.

Q: What parameters must match for a valid substitute?

A: Valid substitutes must maintain the varistor voltage range (387 V – 473 V), surge current rating (1.2 kA), energy absorption (23 J), single-circuit configuration, through-hole disc 7mm package, and operating temperature range (-55°C to 85°C).

Q: Why is the V275LC4 obsolete?

A: Product obsolescence is determined by the manufacturer. The V275LC4P provides an active alternative with identical specifications and improved supply availability.