Equivalent & Substitute Parts for V33ZC5P

Part Overview

The V33ZC5P is a 33 V, 1 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in the ZC series. This through-hole disc component (14mm) is designed for transient voltage protection in electronic circuits. The part is currently active in production with 875 pieces available in new original stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same product category, enabling component interchangeability for procurement flexibility and supply chain continuity.

Substiute Parts

V33ZC5P

Littelfuse Inc.In Stock: 944V33ZC5P Datasheet

Current PartRFQ

V33ZA5P

Littelfuse Inc.In Stock: 3241V33ZA5P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V33ZA5P is identified as a parametric equivalent to the V33ZC5P based on strict electrical and mechanical compatibility criteria. Both parts maintain identical specifications across all critical parameters that determine substitution eligibility:

• Varistor voltage range (Min: 29.7 V, Typ: 33 V, Max: 36.3 V)
• Surge current rating (1 kA)
• Energy absorption capacity (6 J)
• AC and DC voltage limits (20 V AC, 26 V DC)
• Physical form factor (Through Hole, Disc 14mm)
• Thermal operating range (-55°C to 85°C)
• Capacitance characteristics (9290 pF @ 1 MHz)
• Compliance certifications (ROHS3, REACH Unaffected)

The primary distinction between these parts is the series designation (ZC versus ZA), which reflects different manufacturing series within Littelfuse's varistor product line while maintaining full electrical and mechanical interchangeability.

Parameter Comparison

Engineering Selection Recommendations

Both the V33ZC5P and V33ZA5P are active production components from Littelfuse Inc. with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability and supply chain requirements. The V33ZA5P offers higher inventory availability (3200 pieces versus 875 pieces), making it suitable for applications where supply continuity is a priority. Both parts meet identical electrical specifications and physical form factors, ensuring direct substitution without circuit redesign or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can V33ZA5P replace V33ZC5P in existing designs? A: Yes. Both parts are electrically and mechanically identical across all specified parameters, including varistor voltage, surge current rating, energy absorption, and physical dimensions. Direct substitution is possible without circuit modification.

Q: What is the difference between the ZC and ZA series designations? A: The series designation reflects different manufacturing series within Littelfuse's varistor product line. Both series maintain identical electrical and mechanical specifications for the 33 V, 1 kA rating.

Q: Are there any compliance or certification differences? A: No. Both parts carry identical certifications: ROHS3 Compliant, REACH Unaffected, and the same ECCN and HTSUS classifications.

Q: Which part should be selected for new procurement? A: Selection should be based on availability and supply chain strategy. The V33ZA5P has higher inventory availability (3200 pieces), while the V33ZC5P has 875 pieces in stock. Both are active production components.

Q: Are the through-hole mounting and disc 14mm package identical? A: Yes. Both parts use identical through-hole mounting and disc 14mm package specifications, ensuring mechanical compatibility in PCB layouts.

Q: What is the operating temperature range for both parts? A: Both parts operate across the same temperature range: -55°C to 85°C (TA).