V20P14AUTOL2 Equivalent & Substitute Parts

Part Overview

The V20P14AUTOL2 is a 22 V radial varistor manufactured by Littelfuse Inc. in the AUMOV™ series, designed for transient voltage suppression applications. This through-hole disc component (20mm) is rated for 5 kA surge current and 100 J energy dissipation. The part maintains Active product status and carries automotive-grade qualification (AEC-Q200) with ROHS3 compliance. Substitute parts are identified when electrical and mechanical parameters align within the specified tolerances for this product category.

Substiute Parts

V20P14AUTOL2

Littelfuse Inc.In Stock: 815V20P14AUTOL2 Datasheet

Current PartRFQ

V20P14AUTO

Littelfuse Inc.In Stock: 4029V20P14AUTO Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the V20P14AUTOL2 is determined by strict equivalence across the following critical parameters:

• Varistor voltage rating (typical value and tolerance range)
• Maximum AC and DC voltage ratings
• Surge current capacity (5 kA)
• Number of circuits (1)
• Mounting type (Through Hole)
• Package form factor (Disc 20mm)
• Operating temperature range (-40°C to 125°C)
• Automotive qualification status (AEC-Q200)

The V20P14AUTO meets all these criteria and is classified as a parametric equivalent. Both parts share identical electrical specifications for voltage suppression function, circuit configuration, and thermal operating range. Both maintain Active product status and automotive-grade certification.

Parameter Comparison

Engineering Selection Recommendations

Both V20P14AUTOL2 and V20P14AUTO are Active products with identical electrical performance specifications for transient voltage suppression. Both carry AEC-Q200 automotive qualification and ROHS3 compliance, confirming suitability for regulated applications.

The primary distinction is energy dissipation capacity: V20P14AUTOL2 is rated for 100 J while V20P14AUTO is rated for 28 J. Selection between these parts depends on the specific energy absorption requirement of the application circuit. For applications requiring 100 J energy handling, V20P14AUTOL2 is the appropriate choice. For applications with lower energy transient profiles, V20P14AUTO provides equivalent voltage suppression with reduced energy rating.

Both parts are mechanically and electrically interchangeable within their respective energy specifications, sharing identical mounting footprint (Through Hole, Disc 20mm), voltage ratings, surge current capacity, and operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can V20P14AUTO replace V20P14AUTOL2 in all applications?

A: V20P14AUTO provides identical voltage suppression performance and surge current handling. However, it is rated for 28 J energy dissipation versus 100 J for V20P14AUTOL2. Substitution is valid only when the application's transient energy profile does not exceed 28 J.

Q: Are the physical packages identical?

A: Yes. Both parts use Through Hole mounting with Disc 20mm package form factor. PCB footprint and lead spacing are identical.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both V20P14AUTOL2 and V20P14AUTO carry AEC-Q200 qualification and ROHS3 compliance, meeting automotive-grade standards.

Q: What is the voltage tolerance for these varistors?

A: Both parts have a varistor voltage tolerance of 19.8 V (minimum) to 24.2 V (maximum), with a typical rating of 22 V.

Q: Are there differences in capacitance between these parts?

A: No. Both parts measure 22200 pF at 1 MHz operating frequency.

Q: What is the operating temperature range for both parts?

A: Both parts operate across -40°C to 125°C ambient temperature range.