Littelfuse V33ZC2P Equivalent & Substitute Parts

Part Overview

The Littelfuse V33ZC2P is a 33V 500A disc varistor designed for transient voltage suppression applications. This through-hole component operates across a temperature range of -55°C to 85°C and is ROHS3 compliant. The part is currently in active production status with 866 units available in inventory. Equivalent and substitute parts are identified when identical electrical performance and mechanical compatibility are maintained across the specified parameter set.

Substiute Parts

V33ZC2P

Littelfuse Inc.In Stock: 921V33ZC2P Datasheet

Current PartRFQ

V33ZA2P

LittelfuseIn Stock: 3471V33ZA2P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the V33ZC2P are qualified based on matching the following critical parameters: varistor voltage rating (29.7V minimum to 36.3V maximum), surge current capacity (500A), maximum DC voltage (26V), maximum AC voltage (20V), energy rating (3J), capacitance at 1 MHz (3495 pF), operating temperature range (-55°C to 85°C), and through-hole disc 10mm package configuration. The V33ZA2P meets all these electrical and mechanical specifications and is therefore a direct parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The V33ZA2P is a direct parametric equivalent to the V33ZC2P. Both parts are manufactured by Littelfuse, maintain identical electrical specifications across all voltage, current, and energy parameters, and share the same through-hole disc 10mm package configuration. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 rating. Selection between these parts may be based on inventory availability, supply chain considerations, or series preference (ZC versus ZA). The V33ZA2P currently has higher inventory availability at 3400 units compared to 866 units for the V33ZC2P.

Frequently Asked Questions (FAQ)

Q: What makes V33ZA2P a valid substitute for V33ZC2P? A: The V33ZA2P matches all critical electrical parameters including 33V typical varistor voltage, 500A surge current, 26V maximum DC voltage, 20V maximum AC voltage, 3J energy rating, and 3495 pF capacitance at 1 MHz. Both parts use identical through-hole disc 10mm packaging and operate across the same temperature range (-55°C to 85°C).

Q: Are there any differences between the ZC and ZA series designations? A: The series designation (ZC versus ZA) reflects internal Littelfuse product line organization. Both series maintain identical electrical and mechanical specifications for this 33V 500A varistor rating and are functionally interchangeable in circuit applications.

Q: Can I use V33ZA2P as a direct replacement in existing PCB designs? A: Yes. The V33ZA2P maintains identical through-hole disc 10mm package dimensions and pinout configuration, allowing direct substitution in existing board layouts without modification.

Q: What compliance certifications apply to both parts? A: Both the V33ZC2P and V33ZA2P are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited moisture sensitivity level) ratings.

Q: How do I determine which substitute part to order? A: Selection should be based on availability, lead time, and supply chain requirements. Both parts deliver identical performance. The V33ZA2P currently has higher inventory availability.