V320LC10 Equivalent & Substitute Parts

Part Overview

The V320LC10 is a 510 V, 2.5 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse in a through-hole disc 10mm package. This component is designed for single-circuit transient voltage protection applications. The V320LC10 is classified as obsolete, making identification of equivalent substitute parts essential for ongoing system maintenance, repairs, and new designs requiring compatible protection devices.

Substiute Parts

V320LC10

LittelfuseIn Stock: 1143V320LC10 Datasheet

Current PartRFQ

V320LC10P

Littelfuse Inc.In Stock: 1050V320LC10P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V320LC10 is determined by strict equivalence across the following critical electrical and mechanical parameters:

• Maximum AC Volts: 320 V
• Maximum DC Volts: 420 V
• Varistor Voltage (Typical): 510 V
• Current - Surge: 2.5 kA
• Energy: 48 J
• Number of Circuits: 1
• Operating Temperature Range: -55°C to 85°C
• Mounting Type: Through Hole
• Package / Case: Disc 10mm

The direct substitute V320LC10P maintains identical electrical specifications and mechanical form factor. Additional cross-reference parts (V320LA10, V320LA10P, B72210S0321K101) are listed as extended substitutes within the Littelfuse and Siemens product families, subject to verification of identical parameter compliance.

Parameter Comparison

Engineering Selection Recommendations

The V320LC10P is the primary direct substitute for the obsolete V320LC10. Both parts are manufactured by Littelfuse and maintain identical electrical and mechanical specifications across all critical parameters. The V320LC10P carries Active product status, ensuring continued availability and supply chain support.

Both the main part and substitute are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity classification, indicating no special moisture handling requirements during storage or assembly.

The V320LC10P is available in Bulk packaging, whereas the original V320LC10 packaging specification was not provided. Confirm packaging requirements for your application before final component selection.

Frequently Asked Questions (FAQ)

Q: Can V320LC10P be used as a direct replacement for V320LC10?

A: Yes. The V320LC10P maintains identical electrical specifications (320 V AC, 420 V DC, 510 V typical varistor voltage, 2.5 kA surge current, 48 J energy) and mechanical form factor (through-hole, disc 10mm package). The primary difference is product status: V320LC10P is Active, while V320LC10 is Obsolete.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in maximum AC/DC voltage ratings, varistor voltage range, surge current capacity, energy rating, circuit count, operating temperature range, mounting type, and package form factor. All these parameters must match between the original and substitute part.

Q: Are there differences in RoHS or environmental compliance between V320LC10 and V320LC10P?

A: No. Both parts are ROHS3 compliant and carry identical MSL Level 1 (Unlimited) moisture sensitivity ratings. Both are suitable for equivalent environmental and regulatory applications.

Q: What packaging options are available for the substitute?

A: The V320LC10P is supplied in Bulk packaging. Confirm your assembly and procurement requirements for tape-and-reel or alternative packaging formats before ordering.

Q: Are there other Littelfuse varistors that can substitute for V320LC10?

A: The V320LC10P is the direct equivalent. Additional cross-reference parts within the Littelfuse and Siemens product families (V320LA10, V320LA10P, B72210S0321K101) are listed as extended substitutes. Verify that all electrical and mechanical parameters match your application requirements before selection.