V480LC40A Equivalent & Substitute Parts

Part Overview

The V480LC40A is a 750 V, 4.5 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc package (14mm). This component is designed for transient overvoltage protection in electronic circuits with a maximum AC rating of 480 V and maximum DC rating of 640 V. The part is currently obsolete, making identification of equivalent and substitute parts essential for ongoing maintenance, repair, and redesign applications.

Substiute Parts

V480LC40A

Littelfuse Inc.In Stock: 746V480LC40A Datasheet

Current PartRFQ

V480LC40AP

Littelfuse Inc.In Stock: 1078V480LC40AP Datasheet

DirectRFQ

V480LC40APX2855

Littelfuse Inc.In Stock: 1110V480LC40APX2855 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V480LC40A is based on strict electrical and mechanical parameter matching within the Littelfuse LC series varistor family. The following criteria determine valid substitutes:

• Varistor voltage range: 675 V (Min) to 825 V (Max), with 750 V typical
• Surge current rating: 4.5 kA
• Maximum AC voltage: 480 V
• Maximum DC voltage: 640 V
• Energy dissipation: 105 J
• Mounting configuration: Through hole, disc 14mm package
• Operating temperature: -55°C to 85°C
• Single circuit configuration

The substitute parts V480LC40AP and V480LC40APX2855 meet all these electrical and mechanical requirements and are classified as direct manufacturer equivalents and parametric equivalents respectively.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the obsolete V480LC40A, both V480LC40AP and V480LC40APX2855 provide full electrical and mechanical compatibility. Both substitute parts are active products from Littelfuse Inc. with identical electrical specifications and package configurations.

V480LC40AP is available in bulk packaging and represents the direct manufacturer equivalent with active product status and REACH unaffected certification.

V480LC40APX2855 is also available in bulk packaging as a parametric equivalent with active product status and REACH unaffected certification.

Both parts maintain ROHS3 compliance, MSL Level 1 rating, and identical regulatory classifications (ECCN EAR99, HTSUS 8533.40.4000), ensuring compliance with existing design requirements and supply chain specifications.

Frequently Asked Questions (FAQ)

Q: Can V480LC40AP and V480LC40APX2855 be used interchangeably with V480LC40A?

A: Yes. Both substitute parts meet all electrical and mechanical parameters of the obsolete V480LC40A, including varistor voltage range (675 V to 825 V typical 750 V), surge current (4.5 kA), maximum AC/DC ratings (480 V / 640 V), energy dissipation (105 J), and through-hole disc 14mm package configuration.

Q: What is the difference between V480LC40AP and V480LC40APX2855?

A: Both parts are Littelfuse LC series varistors with identical electrical specifications and package configurations. V480LC40AP is classified as a direct manufacturer equivalent, while V480LC40APX2855 is classified as a parametric equivalent. Both are active products with equivalent availability and compliance certifications.

Q: Are there any compliance or certification differences between the substitute parts and the original V480LC40A?

A: The substitute parts V480LC40AP and V480LC40APX2855 maintain the same compliance profile as V480LC40A: ROHS3 compliant, MSL Level 1, ECCN EAR99, and HTSUS 8533.40.4000. Both substitute parts include REACH unaffected certification, which was not specified for the obsolete original part.

Q: Does the through-hole disc 14mm package remain the same across all three parts?

A: Yes. All three parts use identical through-hole mounting with disc 14mm package configuration, ensuring direct mechanical compatibility in existing PCB layouts and assembly processes.

Q: What is the operating temperature range for these varistors?

A: All three parts operate across the same temperature range: -55°C to 85°C (TA), maintaining consistent thermal performance across the full product family.