V320LS20APX1347 Equivalent & Substitute Parts

Part Overview

The V320LS20APX1347 is a 510 V, 4.5 kA disc varistor manufactured by Littelfuse Inc. in the LS series. This transient voltage suppressor is designed for through-hole mounting applications requiring single-circuit overvoltage protection. The part is currently active in production with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when packaging format differs while maintaining identical electrical and mechanical specifications.

Substiute Parts

V320LS20APX1347

Littelfuse Inc.In Stock: 966V320LS20APX1347 Datasheet

Current PartRFQ

V320LS20AP

Littelfuse Inc.In Stock: 3695V320LS20AP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the V320LS20APX1347 is determined by equivalence across the following critical parameters:

• Varistor voltage rating (typical, minimum, and maximum values)
• Surge current capacity (4.5 kA)
• Energy absorption (80 J)
• Operating temperature range (-55°C to 85°C)
• Package form factor (Disc 14mm through-hole)
• Number of circuits (1)
• Capacitance specification (380 pF @ 1 MHz)
• Compliance certifications (RoHS3, REACH Unaffected)

The V320LS20AP qualifies as a parametric equivalent because it maintains identical electrical performance and mechanical dimensions. The only difference is packaging format: the main part is supplied in Tape & Reel (TR) configuration, while the substitute is available in Cut Tape (CT) format. Both formats contain the same component with identical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both the V320LS20APX1347 and V320LS20AP are active production components from Littelfuse Inc. with full RoHS3 compliance and REACH Unaffected status. Selection between these parts should be based on procurement and assembly requirements:

The V320LS20APX1347 in Tape & Reel format is suitable for high-volume automated assembly operations. The V320LS20AP in Cut Tape format accommodates lower-volume applications, manual assembly processes, or situations where component-level flexibility is required. Both parts deliver identical electrical performance and thermal characteristics across the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can V320LS20AP be used as a direct replacement for V320LS20APX1347?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging format (Cut Tape versus Tape & Reel). Component performance, voltage rating, surge capacity, and thermal specifications are identical.

Q: What is the difference between Tape & Reel and Cut Tape packaging?

A: Tape & Reel (TR) packaging supplies components on continuous carrier tape wound on a reel, optimized for automated pick-and-place assembly. Cut Tape (CT) packaging provides the same components on tape segments, suitable for manual handling or lower-volume assembly. The component itself is unchanged.

Q: Are there any compliance differences between these parts?

A: No. Both parts carry identical RoHS3 compliance, REACH Unaffected status, and Moisture Sensitivity Level 1 (Unlimited) ratings.

Q: What determines if a varistor can substitute for the V320LS20APX1347?

A: A substitute varistor must match all of the following: 510 V typical varistor voltage (459–561 V range), 4.5 kA surge current, 80 J energy rating, 1 circuit configuration, Disc 14mm package, through-hole mounting, and -55°C to 85°C operating temperature range.

Q: Can these parts be used interchangeably in production?

A: Yes, provided your assembly process can accommodate the packaging format. Automated lines typically use Tape & Reel; manual or flexible assembly may prefer Cut Tape. Electrical performance is identical.