V27ZC1 Equivalent & Substitute Parts

Part Overview

The V27ZC1 is a 27 V varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This component is classified as obsolete, which necessitates identification of active equivalent parts for continued system support and new designs. The V27ZC1 operates as a single-circuit through-hole disc varistor with a 7mm package footprint, suitable for applications requiring surge current protection up to 250 A.

Substiute Parts

V27ZC1

Littelfuse Inc.In Stock: 1098V27ZC1 Datasheet

Current PartRFQ

V27ZC1P

Littelfuse Inc.In Stock: 1043V27ZC1P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V27ZC1 is determined by electrical and mechanical parameter equivalence within the Littelfuse ZC series varistor family. The primary substitute, V27ZC1P, maintains identical electrical specifications including varistor voltage range (24.3 V – 29.7 V typical 27 V), surge current capacity (250 A), energy rating (1 J), and capacitance characteristics (1875 pF @ 1 MHz). Both components share the same through-hole disc 7mm package configuration, operating temperature range (-55°C to +85°C), and RoHS3 compliance status.

The key substitution criteria are:

• Varistor voltage specification (27 V nominal)
• Surge current rating (250 A minimum)
• Package form factor (Disc 7mm through-hole)
• Operating temperature compatibility (-55°C to +85°C)
• Regulatory compliance (RoHS3)

Parameter Comparison

Engineering Selection Recommendations

The V27ZC1P is the direct functional equivalent for the obsolete V27ZC1. Both components are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications across all critical parameters. The V27ZC1P carries active product status, ensuring continued availability and supply chain support. Both parts meet ROHS3 compliance requirements and share equivalent regulatory classifications (EAR99, HTSUS 8533.40.4000).

For applications currently using the V27ZC1, direct substitution with V27ZC1P is supported without circuit redesign or performance degradation. The packaging difference (bulk versus standard) does not affect electrical or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can V27ZC1P directly replace V27ZC1 in existing designs? A: Yes. The V27ZC1P maintains identical electrical specifications, including varistor voltage (27 V nominal), surge current rating (250 A), energy absorption (1 J), and operating temperature range (-55°C to +85°C). The through-hole disc 7mm package is mechanically identical.

Q: What is the difference between V27ZC1 and V27ZC1P? A: The primary difference is product status. V27ZC1 is obsolete, while V27ZC1P is active. The packaging designation differs (standard versus bulk), but electrical and mechanical parameters are equivalent.

Q: Are there any compliance or certification differences? A: No. Both components are ROHS3 compliant, carry MSL rating 1 (Unlimited), and share identical ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

Q: What parameters determine substitution eligibility for 27 V varistors? A: Substitution is determined by varistor voltage specification (27 V nominal with 24.3 V – 29.7 V tolerance), surge current capacity (250 A), package form factor (Disc 7mm through-hole), and operating temperature range (-55°C to +85°C).

Q: Is the capacitance specification critical for substitution? A: Capacitance (1875 pF @ 1 MHz) is a specified parameter that must match for electrical equivalence. Both V27ZC1 and V27ZC1P maintain this specification.