V39ZC3 Equivalent & Substitute Parts

Part Overview

The V39ZC3 is a 39 V, 500 A Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse Inc. in a through-hole disc package (10mm). This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The V39ZC3P serves as the direct active equivalent, offering identical electrical and mechanical specifications with improved product status and availability.

Substiute Parts

V39ZC3

Littelfuse Inc.In Stock: 1175V39ZC3 Datasheet

Current PartRFQ

V39ZC3P

Littelfuse Inc.In Stock: 952V39ZC3P Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V39ZC3 is determined by strict equivalence across all critical electrical and mechanical parameters:

Key Substitution Criteria:

• Varistor voltage range: 35.1 V (minimum) to 42.9 V (maximum)
• Surge current rating: 500 A
• Energy absorption: 3 J
• Capacitance: 3100 pF @ 1 MHz
• Operating temperature: -55°C to +85°C
• Package type: Through-hole disc 10mm
• Single circuit configuration
• RoHS3 compliance

The V39ZC3P is a direct substitute that maintains all electrical specifications while differing only in product status (active vs. obsolete) and packaging format (bulk vs. standard).

Parameter Comparison

Engineering Selection Recommendations

The V39ZC3P is the appropriate substitute for the obsolete V39ZC3. Both parts are manufactured by Littelfuse Inc. and maintain identical electrical and mechanical specifications across all critical parameters. The V39ZC3P carries active product status, ensuring ongoing availability and support. Both parts meet ROHS3 compliance requirements and carry MSL 1 (unlimited) moisture sensitivity classification, indicating no special handling requirements during storage or assembly.

Selection between these parts is determined by availability and supply chain requirements rather than technical performance differences. The V39ZC3P is recommended for new designs and production applications due to its active status.

Frequently Asked Questions (FAQ)

Q: Can V39ZC3P be used as a direct replacement for V39ZC3?

A: Yes. The V39ZC3P is a direct electrical and mechanical equivalent. All varistor voltage specifications, surge current ratings, energy absorption, capacitance, operating temperature range, and package dimensions are identical. The parts are interchangeable in circuit applications.

Q: What is the difference between V39ZC3 and V39ZC3P?

A: The primary differences are product status and packaging format. V39ZC3 is obsolete; V39ZC3P is active. V39ZC3 uses standard packaging; V39ZC3P uses bulk packaging. Electrical and mechanical specifications are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant and carry identical moisture sensitivity levels (MSL 1 - Unlimited). Both are classified under ECCN EAR99 and HTSUS 8533.40.4000.

Q: What mounting considerations apply to these parts?

A: Both parts are through-hole mounted components in a 10mm disc package. PCB design and assembly procedures remain unchanged when substituting between these parts.

Q: Is the V39ZC3P suitable for new product designs?

A: Yes. The V39ZC3P is the recommended choice for new designs, as it carries active product status and ensures long-term availability and supply chain continuity.