V150LA20CX360 Equivalent & Substitute Parts

Part Overview

The V150LA20CX360 is a 240 V, 10 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in the C-III series. This through-hole disc component (20mm) is designed for transient voltage protection applications with a rated energy capacity of 215J and operating temperature range of -55°C to 85°C. The part is currently obsolete, making identification of suitable substitutes necessary for ongoing system support and new designs requiring equivalent protection characteristics.

Substiute Parts

V150LA20CX360

Littelfuse Inc.In Stock: 1016V150LA20CX360 Datasheet

Current PartRFQ

V150LA20CPX360

Littelfuse Inc.In Stock: 1025V150LA20CPX360 Datasheet

DirectRFQ

V150LS20BP

Littelfuse Inc.In Stock: 916V150LS20BP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V150LA20CX360 is determined by the following critical parameters:

• Varistor Voltage Range: Nominal voltage must fall within the acceptable operating window (216 V minimum to 264 V maximum for the main part)
• Current - Surge Rating: Minimum 10 kA required to maintain equivalent transient protection capability
• Energy Rating: Minimum 215J to handle equivalent energy dissipation
• Mounting Type & Package: Through-hole disc 20mm form factor for mechanical compatibility
• Operating Temperature: -55°C to 85°C range for thermal compatibility
• RoHS Compliance: ROHS3 compliance required for regulatory alignment

Two substitute parts are identified based on these criteria:

V150LA20CPX360 (Direct Substitute - Same Series): Maintains identical surge current (10 kA), energy (215J), and mechanical specifications. Varistor voltage (229.5 V typical) falls within the acceptable range. Active product status ensures availability.

V150LS20BP (Manufacturer Recommended Alternative - Different Series): Operates at equivalent varistor voltage (229.5 V typical) with through-hole disc 20mm packaging. Differs in surge current (6.5 kA) and energy rating (80J), representing a lower-energy alternative suitable for applications with reduced transient stress requirements.

Parameter Comparison

Engineering Selection Recommendations

V150LA20CPX360 is the primary substitute for the obsolete V150LA20CX360. Both parts belong to the C-III series and maintain identical electrical performance specifications (10 kA surge current, 215J energy rating, 7000 pF capacitance). The V150LA20CPX360 is currently in active production status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory compliance and supply chain continuity. The varistor voltage (229.5 V typical) remains within the acceptable operating range and provides equivalent transient protection performance.

V150LS20BP is a manufacturer-recommended alternative for applications where reduced transient energy handling is acceptable. This part operates at the same varistor voltage (229.5 V typical) and maintains the same through-hole disc 20mm form factor. However, the reduced surge current rating (6.5 kA versus 10 kA) and lower energy capacity (80J versus 215J) indicate this substitute is suitable only for systems with lower transient stress levels. The LS series offers lower capacitance (1600 pF @ 1 MHz) and is supplied in Tape & Reel packaging. This part is active and ROHS3 compliant.

Selection between these substitutes depends on application transient stress requirements. For equivalent protection, use V150LA20CPX360. For reduced-stress applications, V150LS20BP provides an alternative with lower energy dissipation requirements.

Frequently Asked Questions (FAQ)

Q: Can V150LA20CPX360 be used as a direct replacement for V150LA20CX360?

A: Yes. Both parts are from the Littelfuse C-III series with identical surge current (10 kA), energy rating (215J), capacitance (7000 pF @ 1 MHz), and mechanical specifications (through-hole disc 20mm). The varistor voltage (229.5 V typical) falls within the acceptable operating range. V150LA20CPX360 is currently in active production.

Q: What is the difference between V150LA20CPX360 and V150LS20BP?

A: Both parts operate at 229.5 V typical varistor voltage and use the same 20mm disc form factor. The primary differences are: V150LA20CPX360 maintains the original 10 kA surge current and 215J energy rating (C-III series), while V150LS20BP has reduced surge current (6.5 kA) and energy (80J) in the LS series. V150LA20CPX360 is supplied in bulk packaging; V150LS20BP is supplied in Tape & Reel.

Q: Should I use V150LS20BP if the application requires 10 kA surge protection?

A: No. V150LS20BP is rated for 6.5 kA surge current and 80J energy, which is insufficient for applications requiring 10 kA protection. Use V150LA20CPX360 for equivalent 10 kA surge protection.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both V150LA20CPX360 and V150LS20BP are ROHS3 compliant. V150LA20CPX360 also carries REACH unaffected certification.

Q: What is the packaging difference between the substitutes?

A: V150LA20CPX360 is supplied in bulk packaging. V150LS20BP is supplied in Tape & Reel (TR) format, which may affect procurement and assembly processes depending on production requirements.

Q: Can the varistor voltage difference (240 V original versus 229.5 V substitutes) affect circuit performance?

A: The varistor voltage specifications are provided as minimum, typical, and maximum ranges. The original part specifies 240 V typical (216-264 V range), while substitutes specify 229.5 V typical (216-243 V range). Both fall within acceptable operating windows for transient suppression. The substitutes operate at a lower typical voltage within their specified range, which is within normal manufacturing tolerance and does not indicate incompatibility.