V275LS40C Equivalent & Substitute Parts

Part Overview

The V275LS40C is a 430 V, 10 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse in the C-III series. This through-hole disc component (20mm) is designed for transient voltage protection in electronic circuits. The part is currently listed as obsolete, making identification of compatible substitutes essential for ongoing maintenance, repair, and legacy system support. The substitute part maintains identical electrical and mechanical specifications while offering improved availability through active product status.

Substiute Parts

V275LS40C

LittelfuseIn Stock: 898V275LS40C Datasheet

Current PartRFQ

V275LS40CP

Littelfuse Inc.In Stock: 870V275LS40CP Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The V275LS40CP qualifies as a direct substitute for the V275LS40C based on the following substitution criteria:

Electrical Parameters (Identical):

• Varistor voltage range: 387 V (Min) to 473 V (Max), with 430 V typical
• Surge current rating: 10 kA
• Maximum AC voltage: 275 V
• Energy dissipation: 320 J
• Capacitance: 7000 pF @ 1 MHz
• Operating temperature: -55°C to 85°C

Mechanical Parameters (Identical):

• Mounting type: Through Hole
• Package form: Disc 20mm
• Number of circuits: 1

Compliance & Certification (Equivalent or Superior):

• RoHS3 Compliant (both parts)
• Moisture Sensitivity Level: 1 (Unlimited)
• ECCN: EAR99 (both parts)
• HTSUS: 8533.40.4000 (both parts)

The only difference is packaging format: V275LS40C is supplied in standard packaging, while V275LS40CP is supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical or mechanical performance.

Parameter Comparison

Engineering Selection Recommendations

The V275LS40CP is the appropriate substitute for the obsolete V275LS40C based on the following engineering criteria:

Product Status: The V275LS40C is obsolete, while V275LS40CP maintains active product status with Littelfuse, ensuring continued availability and manufacturer support.

Electrical & Mechanical Equivalence: All critical electrical parameters (varistor voltage, surge current, energy dissipation, capacitance) and mechanical specifications (through-hole mounting, disc 20mm package, single circuit) are identical between the two parts.

Compliance & Certification: Both parts meet ROHS3 compliance and carry identical ECCN and HTSUS classifications, ensuring regulatory and trade compliance equivalence.

Packaging Consideration: The V275LS40CP is supplied in Tape & Reel (TR) format, which is standard for high-volume manufacturing and automated assembly. If manual or small-quantity assembly is required, confirm that your assembly process accommodates tape-and-reel packaging, or consult with Littelfuse regarding alternative packaging availability.

Frequently Asked Questions (FAQ)

Q: Can V275LS40CP be used as a direct replacement for V275LS40C in existing designs?

A: Yes. The V275LS40CP is electrically and mechanically identical to the V275LS40C. All varistor voltage specifications, surge current ratings, energy dissipation, capacitance, and operating temperature ranges match exactly. The only difference is packaging format (Tape & Reel vs. standard packaging), which does not affect component performance.

Q: What is the difference between V275LS40C and V275LS40CP?

A: The parts are functionally identical. The primary difference is packaging: V275LS40C uses standard packaging, while V275LS40CP uses Tape & Reel (TR) format. Both are manufactured by Littelfuse in the C-III series with identical electrical and mechanical specifications.

Q: Why is V275LS40C listed as obsolete?

A: The V275LS40C has been discontinued by Littelfuse. The V275LS40CP, with identical specifications and active product status, is the current production equivalent and recommended substitute for new designs and replacements.

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

A: No. Both parts are ROHS3 compliant, carry MSL rating of 1 (Unlimited), and share identical ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

Q: Will Tape & Reel packaging affect my assembly process?

A: Tape & Reel packaging is standard for automated assembly equipment. If your assembly process uses manual placement or non-standard equipment, confirm compatibility with your assembly provider. Littelfuse may offer alternative packaging upon request for specific applications.

Q: Are the varistor voltage tolerances the same for both parts?

A: Yes. Both parts have identical varistor voltage specifications: minimum 387 V, typical 430 V, and maximum 473 V. The tolerance range is the same for both V275LS40C and V275LS40CP.