Littelfuse V33ZC1P Equivalent & Substitute Parts

Part Overview

The Littelfuse V33ZC1P is a 33V 250A disc varistor designed for transient voltage suppression in through-hole applications. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

V33ZC1P

LittelfuseIn Stock: 1088V33ZC1P Datasheet

Current PartRFQ

V33ZA1P

Littelfuse Inc.In Stock: 4942V33ZA1P Datasheet

Parametric EquivalentRFQ

B72207S0200K101

EPCOS - TDK ElectronicsIn Stock: 10172B72207S0200K101 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V33ZC1P are qualified based on the following electrical and mechanical parameters:

• Varistor voltage range: 29.7 V (Min) to 36.3 V (Max)
• Surge current rating: 250 A minimum
• Mounting configuration: Through Hole
• Package form factor: Disc 7mm
• Number of circuits: 1
• RoHS3 compliance status
• REACH unaffected status

Parts meeting these criteria are functionally interchangeable within the specified electrical operating window and physical constraints of the application.

Parameter Comparison

Engineering Selection Recommendations

All three parts—V33ZC1P, V33ZA1P, and B72207S0200K101—are Active product status and meet RoHS3 and REACH compliance requirements. Selection between these parts is based on availability and supply chain requirements rather than electrical performance differences.

The V33ZA1P (Littelfuse) is a parametric equivalent within the same manufacturer family, differing only in series designation (ZA vs. ZC). The B72207S0200K101 (EPCOS - TDK Electronics) provides an alternative from a different manufacturer with identical electrical specifications and extended operating temperature range (-40°C ~ 105°C vs. -55°C ~ 85°C). The energy rating of B72207S0200K101 is 1.3 J compared to 1.2 J for the Littelfuse variants, representing a minor performance advantage.

Frequently Asked Questions (FAQ)

Q: Can V33ZA1P be used as a direct replacement for V33ZC1P?

A: Yes. Both parts are manufactured by Littelfuse with identical electrical parameters, varistor voltage range (29.7 V to 36.3 V), surge current rating (250 A), and physical package (Disc 7mm through-hole). The series designation difference (ZA vs. ZC) does not affect functional compatibility.

Q: What are the key differences between the Littelfuse and EPCOS variants?

A: The B72207S0200K101 (EPCOS - TDK) maintains all critical electrical specifications but offers an extended operating temperature range (-40°C ~ 105°C vs. -55°C ~ 85°C) and slightly higher energy rating (1.3 J vs. 1.2 J). Capacitance measurement frequency differs (1 kHz vs. 1 MHz), but both values are within acceptable tolerance for this component class.

Q: Are all three parts RoHS3 and REACH compliant?

A: Yes. V33ZC1P, V33ZA1P, and B72207S0200K101 are all RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Does the 7mm disc package ensure mechanical compatibility across all three parts?

A: Yes. All three parts use identical through-hole Disc 7mm packaging, ensuring direct mechanical compatibility in PCB layouts and mechanical assemblies without modification.

Q: When should the extended temperature range of B72207S0200K101 be considered?

A: The EPCOS variant's extended operating range (-40°C ~ 105°C) is relevant only if the application requires operation beyond the Littelfuse range (-55°C ~ 85°C). For standard industrial applications within -55°C ~ 85°C, all three parts are functionally equivalent.