V385LC7 Equivalent & Substitute Parts

Part Overview

The V385LC7 is a 620 V, 1.2 kA varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This component is classified as obsolete, which necessitates identification of equivalent substitute parts for ongoing procurement and system maintenance. The V385LC7P serves as the direct active equivalent, offering identical electrical and mechanical specifications with improved product availability.

Substiute Parts

V385LC7

Littelfuse Inc.In Stock: 1244V385LC7 Datasheet

Current PartRFQ

V385LC7P

LittelfuseIn Stock: 1268V385LC7P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The V385LC7P qualifies as a direct substitute based on the following criteria:

• Identical varistor voltage range: 558 V (Min) to 682 V (Max), with 620 V typical
• Matching surge current rating: 1.2 kA
• Identical energy dissipation: 27 J
• Matching AC and DC voltage ratings: 385 V AC / 505 V DC
• Identical physical package: Disc 7mm through-hole configuration
• Matching capacitance specification: 60 pF @ 1 MHz
• Identical operating temperature range: -55°C to 85°C
• Equivalent RoHS3 compliance and MSL rating

The primary distinction is product status: V385LC7 is obsolete, while V385LC7P is active production, making V385LC7P the recommended procurement choice.

Parameter Comparison

Engineering Selection Recommendations

The V385LC7P is the appropriate selection for new designs and component replacement applications. As an active production part from the same manufacturer and series, it provides continuity of supply and maintains full electrical and mechanical compatibility. Both parts carry identical RoHS3 compliance and regulatory classifications (ECCN: EAR99, HTSUS: 8533.40.4000), ensuring no changes to supply chain documentation or compliance requirements.

The obsolete status of V385LC7 makes V385LC7P the only viable long-term procurement option for this varistor specification.

Frequently Asked Questions (FAQ)

Q: Can V385LC7P be used as a direct replacement for V385LC7 in existing assemblies?

A: Yes. The V385LC7P is electrically and mechanically identical to V385LC7. All electrical parameters, including varistor voltage, surge current, energy dissipation, and operating temperature range are matched. The through-hole Disc 7mm package is identical, allowing direct PCB substitution without layout modifications.

Q: What is the primary reason to transition from V385LC7 to V385LC7P?

A: V385LC7 is classified as obsolete, meaning Littelfuse has discontinued production. V385LC7P is the active equivalent part, ensuring continued availability for procurement and future production runs.

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

A: No. Both parts carry identical RoHS3 compliance, MSL rating of 1 (Unlimited), and regulatory classifications. No changes to compliance documentation are required when substituting V385LC7P for V385LC7.

Q: Does the packaging format differ between V385LC7 and V385LC7P?

A: The electrical component packaging (Disc 7mm through-hole) is identical. V385LC7P is supplied in bulk packaging format, which is standard for active production parts.

Q: Are the electrical specifications guaranteed to be identical across the full operating temperature range?

A: Yes. Both parts specify identical operating temperature range (-55°C to 85°C) and identical varistor voltage characteristics across this range. The 27 J energy rating and 1.2 kA surge current are constant specifications for both parts.