V385LA7 Equivalent & Substitute Parts

Part Overview

The V385LA7 is a 620 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 V385LA7 is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for maintenance, repair, and new production applications where this component specification remains required.

Substiute Parts

V385LA7

Littelfuse Inc.In Stock: 873V385LA7 Datasheet

Current PartRFQ

V385LA7P

Littelfuse Inc.In Stock: 3205V385LA7P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V385LA7 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria define valid substitutes:

• Varistor voltage range: 558 V – 682 V (minimum, typical, and maximum values must align)
• Surge current rating: 1.2 kA
• Energy absorption: 27 J
• Capacitance: 60 pF @ 1 MHz
• Operating temperature range: -55°C to 85°C
• Mounting configuration: Through hole
• Package form factor: Disc 7mm
• Circuit count: Single circuit (1)
• Compliance: ROHS3 Compliant

The V385LA7P is identified as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status and packaging format.

Parameter Comparison

Engineering Selection Recommendations

The V385LA7P is the direct substitute for the obsolete V385LA7. Both components are manufactured by Littelfuse Inc. and share identical electrical and mechanical specifications across all rated parameters.

The V385LA7P carries active product status, ensuring ongoing availability and supply chain continuity. Both parts maintain ROHS3 compliance and identical moisture sensitivity classification (MSL 1).

Selection of the V385LA7P is appropriate for applications requiring the V385LA7 specification. No electrical or mechanical redesign is necessary. Packaging format differs (bulk versus standard), but this does not affect component performance or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can the V385LA7P directly replace the V385LA7 in existing designs?

A: Yes. The V385LA7P is electrically and mechanically identical to the V385LA7. All rated parameters, including varistor voltage, surge current, energy absorption, and operating temperature range, are equivalent. Through-hole mounting and disc 7mm package form factor are identical.

Q: What is the primary difference between V385LA7 and V385LA7P?

A: The V385LA7 is obsolete; the V385LA7P is active. Both components are manufactured by Littelfuse Inc. and meet identical electrical specifications. The V385LA7P is the recommended source for new procurement and replacement applications.

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

A: No. Both the V385LA7 and V385LA7P are ROHS3 compliant with identical moisture sensitivity level (MSL 1). Regulatory classification (ECCN: EAR99; HTSUS: 8533.40.4000) is the same for both parts.

Q: Does packaging format affect substitution compatibility?

A: Packaging format (bulk versus standard) does not affect electrical performance or board-level integration. The component specifications and through-hole mounting configuration remain unchanged. Packaging format is a supply and logistics consideration only.

Q: What parameters must remain constant for valid substitution?

A: Valid substitution requires equivalence across varistor voltage range (558 V – 682 V), surge current (1.2 kA), energy absorption (27 J), capacitance (60 pF @ 1 MHz), operating temperature (-55°C to 85°C), mounting type (through hole), and package form factor (disc 7mm).