V10E320PL4 Equivalent & Substitute Parts

Part Overview

The V10E320PL4 is a radial varistor manufactured by Littelfuse Inc., classified as a Transient Voltage Suppressor (TVS) device. This 10mm disc varistor is designed for through-hole mounting applications requiring transient voltage protection. The part operates with a nominal varistor voltage of 510 V and handles surge currents up to 3.5 kA, making it suitable for industrial and commercial power protection circuits. The V10E320PL4 maintains Active product status and is RoHS3 compliant. Identifying equivalent substitute parts becomes necessary when managing inventory constraints, ensuring supply chain continuity, or matching specific packaging or certification requirements across production batches.

Substiute Parts

V10E320PL4

Littelfuse Inc.In Stock: 979V10E320PL4 Datasheet

Current PartRFQ

V10E320P

Littelfuse Inc.In Stock: 9814V10E320P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the V10E320PL4 is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Maximum AC Volts: 320 V
• Maximum DC Volts: 420 V
• Varistor Voltage (Typical): 510 V
• Current - Surge: 3.5 kA
• Energy: 67 J
• Capacitance @ 1 MHz: 170 pF

Mechanical Parameters (Must Match):

• Mounting Type: Through Hole
• Package / Case: Disc 10mm
• Number of Circuits: 1

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Product Status: Active

The substitute part V10E320P meets all electrical, mechanical, and compliance requirements specified above, establishing it as a parametric equivalent within the Littelfuse UltraMOV™ series.

Parameter Comparison

Engineering Selection Recommendations

Both the V10E320PL4 and V10E320P are Active products manufactured by Littelfuse Inc. and maintain full RoHS3 compliance. The electrical specifications, mechanical form factor, and thermal operating range are identical across both parts. Selection between these two equivalent parts should be based on:

Inventory Availability: The V10E320P currently maintains higher inventory levels (9,749 pcs) compared to the V10E320PL4 (917 pcs), making it suitable for applications where supply continuity is a priority.

Packaging Designation: The V10E320PL4 includes an "L" designation in its part number, which may indicate a specific packaging or lead configuration variant. The V10E320P represents the standard packaging variant within the same electrical specification class.

Compliance Certifications: Both parts carry identical REACH and ECCN classifications (REACH Unaffected, EAR99), ensuring equivalent regulatory standing for export and domestic applications.

Either part is electrically and mechanically interchangeable for through-hole PCB assembly applications requiring 510 V nominal varistor protection with 3.5 kA surge current handling capacity.

Frequently Asked Questions (FAQ)

Q: Can V10E320P be used as a direct replacement for V10E320PL4 in existing designs?

A: Yes. Both parts are parametric equivalents with identical electrical ratings (510 V nominal varistor voltage, 3.5 kA surge current), identical mechanical packaging (Disc 10mm through-hole), and identical compliance status (RoHS3). No circuit redesign or PCB layout modification is required.

Q: What is the difference between V10E320PL4 and V10E320P?

A: The primary difference is the packaging designation indicated by the "L" suffix in V10E320PL4. Both parts share identical electrical specifications and mechanical form factors. The designation may reflect different packaging configurations or lead treatments, but electrical performance and PCB footprint compatibility remain unchanged.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both V10E320PL4 and V10E320P operate across the identical temperature range of -55°C to 85°C (TA), ensuring equivalent thermal performance in the same application environment.

Q: Do both parts have the same surge current handling capacity?

A: Yes. Both parts are rated for 3.5 kA surge current and 67 J energy absorption, making them functionally equivalent for transient voltage suppression applications.

Q: Which part should be selected for new production designs?

A: Selection should be based on current inventory availability and supply chain requirements. The V10E320P offers higher stock levels and represents the standard packaging variant. Both parts carry Active product status and full RoHS3 compliance, ensuring long-term availability and regulatory compliance.

Q: Are there any mechanical differences in the 10mm disc package between these parts?

A: No. Both parts use identical Disc 10mm through-hole packaging, ensuring compatibility with existing PCB designs, assembly equipment, and mounting procedures.