V33ZC5 Equivalent & Substitute Parts

Part Overview

The V33ZC5 is a 33 V, 1 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc package (14mm). This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The V33ZC5 series provides transient voltage suppression across a single circuit with energy absorption capability of 6 J, suitable for applications requiring overvoltage protection in the 33 V nominal range.

Substiute Parts

V33ZC5

Littelfuse Inc.In Stock: 966V33ZC5 Datasheet

Current PartRFQ

V33ZC5P

Littelfuse Inc.In Stock: 944V33ZC5P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V33ZC5 is determined by strict equivalence across the following critical parameters:

• Varistor voltage rating: 33 V nominal (29.7 V – 36.3 V range)
• Surge current capacity: 1 kA minimum
• Energy absorption: 6 J
• Mounting configuration: Through-hole disc package, 14mm diameter
• Number of circuits: Single circuit
• Operating temperature range: -55°C to 85°C
• Electrical characteristics: Maximum AC volts (20 V), maximum DC volts (26 V), capacitance (9290 pF @ 1 MHz)

The V33ZC5P qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction is product status: V33ZC5 is obsolete, while V33ZC5P is active production.

Parameter Comparison

Engineering Selection Recommendations

The V33ZC5P is the direct equivalent substitute for the V33ZC5. Both components share identical electrical and mechanical specifications, including varistor voltage rating, surge current capacity, energy absorption, and package configuration. The V33ZC5P is preferred for new designs and production applications due to its active product status, ensuring long-term availability and supply chain continuity.

Both parts maintain ROHS3 compliance and carry identical export classification (EAR99) and tariff codes (HTSUS 8533.40.4000). The packaging difference (V33ZC5 in tape/reel versus V33ZC5P in bulk) does not affect electrical or mechanical compatibility; selection depends on procurement and assembly requirements.

Frequently Asked Questions (FAQ)

Q: Can V33ZC5P be used as a direct replacement for V33ZC5?

A: Yes. The V33ZC5P is electrically and mechanically identical to the V33ZC5. All critical parameters—varistor voltage, surge current, energy absorption, operating temperature range, and package dimensions—are equivalent. The V33ZC5P is recommended for new applications due to its active production status.

Q: What is the difference between V33ZC5 and V33ZC5P?

A: The primary difference is product status: V33ZC5 is obsolete, while V33ZC5P is in active production. Packaging may differ (tape/reel versus bulk), but electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences between these parts?

A: No. Both V33ZC5 and V33ZC5P are ROHS3 compliant, carry MSL rating 1 (unlimited moisture sensitivity), and share identical ECCN and HTSUS classifications.

Q: What applications are these varistors suitable for?

A: These 33 V, 1 kA varistors are designed for transient voltage suppression in single-circuit applications requiring overvoltage protection. The 6 J energy absorption capacity and 1 kA surge current rating determine suitability for specific circuit protection requirements.

Q: Can these parts be used in surface-mount applications?

A: No. Both V33ZC5 and V33ZC5P are through-hole components with disc package configuration (14mm diameter). They are not suitable for surface-mount assembly.

Q: What is the operating temperature range for these components?

A: Both parts operate across -55°C to 85°C ambient temperature range, suitable for industrial and commercial applications.