V625LA40AP Equivalent & Substitute Parts

Part Overview

The V625LA40AP is a 1 kV, 4.5 kA transient voltage suppressor varistor manufactured by Littelfuse in a through-hole disc configuration (14mm). This component is designed for overvoltage protection in electronic circuits and is currently in active production status. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits selection from qualified alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

V625LA40AP

LittelfuseIn Stock: 1483V625LA40AP Datasheet

Current PartRFQ

B72214S0621K101

EPCOS - TDK ElectronicsIn Stock: 4829B72214S0621K101 Datasheet

MFR RecommendedRFQ

ERZ-V14D102

Panasonic Electronic ComponentsIn Stock: 911ERZ-V14D102 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V625LA40AP are qualified based on the following electrical and mechanical parameters:

• Maximum AC Volts: 625 V
• Maximum DC Volts: 825 V
• Varistor Voltage (Typ): 1 kV
• Current - Surge: 4.5 kA minimum
• Mounting Type: Through Hole
• Package / Case: Disc configuration (14mm or 15.5mm)
• RoHS Status: ROHS3 Compliant

Parts meeting these criteria are considered functionally equivalent for direct substitution in circuit designs where the V625LA40AP is specified.

Parameter Comparison

Engineering Selection Recommendations

All three parts listed—V625LA40AP (Littelfuse), B72214S0621K101 (EPCOS - TDK Electronics), and ERZ-V14D102 (Panasonic)—are active production components with ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

The B72214S0621K101 maintains identical electrical specifications and 14mm disc package geometry, providing direct mechanical and electrical compatibility with the V625LA40AP.

The ERZ-V14D102 offers higher surge current capability (5 kA versus 4.5 kA) and significantly higher energy absorption (280 J versus 125 J), with a slightly larger 15.5mm disc package. This part is suitable for applications requiring enhanced transient protection, provided PCB layout accommodates the larger package footprint.

Selection should be based on component availability, supply chain lead times, and specific application requirements regarding surge current and energy absorption capacity.

Frequently Asked Questions (FAQ)

Q: Can B72214S0621K101 be used as a direct replacement for V625LA40AP?

A: Yes. The B72214S0621K101 matches all critical electrical parameters (625 V AC, 825 V DC, 1 kV varistor voltage, 4.5 kA surge current) and maintains the same 14mm disc package geometry, enabling direct substitution without PCB modification.

Q: What are the differences between ERZ-V14D102 and V625LA40AP?

A: The ERZ-V14D102 provides higher surge current (5 kA versus 4.5 kA) and greater energy absorption (280 J versus 125 J). The package is slightly larger at 15.5mm disc versus 14mm disc. All voltage ratings remain identical. PCB layout verification is required before substitution.

Q: Are all substitute parts RoHS and REACH compliant?

A: Yes. All three parts—V625LA40AP, B72214S0621K101, and ERZ-V14D102—are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for EU and international markets.

Q: What is the operating temperature range difference between these parts?

A: The V625LA40AP operates from -55°C to 85°C. Both B72214S0621K101 and ERZ-V14D102 operate from -40°C to 85°C (or 105°C for EPCOS). Applications requiring operation below -40°C must use the V625LA40AP.

Q: Can ERZ-V14D102 be used in a circuit designed for V625LA40AP?

A: Electrical compatibility is confirmed across all voltage and current parameters. Mechanical compatibility requires verification that the 15.5mm disc package fits the PCB footprint designed for 14mm components. Higher energy absorption provides enhanced protection margin.