V420LU10P Equivalent & Substitute Parts

Part Overview

The V420LU10P is a 680 V varistor manufactured by Littelfuse Inc., designed for transient voltage suppression applications. This through-hole disc component (10mm) provides 2.5 kA surge current protection with 55 J energy absorption capability. The part is actively produced and ROHS3 compliant, making it suitable for industrial and commercial voltage protection circuits. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across alternative packaging formats or series variants from the same manufacturer.

Substiute Parts

V420LU10P

Littelfuse Inc.In Stock: 965V420LU10P Datasheet

Current PartRFQ

V420LS10P

Littelfuse Inc.In Stock: 5748V420LS10P Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The V420LS10P qualifies as a parametric equivalent to the V420LU10P based on the following criteria:

Electrical Parameters Match:

• Varistor voltage range: 612 V (Min) to 748 V (Max), with 680 V typical
• Surge current rating: 2.5 kA
• Energy absorption: 55 J
• Maximum AC/DC voltage ratings: 420 V / 560 V
• Capacitance: 140 pF @ 1 MHz
• Operating temperature: -55°C to 85°C

Mechanical Compatibility:

• Mounting type: Through Hole
• Package / Case: Disc 10mm
• Number of circuits: 1

Regulatory Compliance:

• RoHS3 compliant
• REACH unaffected
• ECCN: EAR99
• HTSUS: 8533.40.4000

The only difference between these parts is the packaging format: V420LU10P is supplied in Tape & Reel (TR), while V420LS10P is supplied in Cut Tape (CT). Both are manufactured by Littelfuse Inc. within the same series family (LU and LS variants) and maintain identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

Both V420LU10P and V420LS10P are active products from Littelfuse Inc. with identical electrical and mechanical specifications. Selection between these parts depends on procurement and assembly requirements:

V420LU10P (Tape & Reel): Suitable for high-volume automated assembly operations where reel-fed component handling is standard.

V420LS10P (Cut Tape): Suitable for lower-volume applications, manual assembly, or when cut tape packaging is preferred for inventory management.

Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility in target applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage or handling.

Frequently Asked Questions (FAQ)

Q: Can V420LS10P replace V420LU10P in my circuit?

A: Yes. Both parts have identical electrical specifications (680 V typical varistor voltage, 2.5 kA surge current, 55 J energy) and mechanical compatibility (through-hole, 10mm disc package). The only difference is packaging format (Cut Tape vs. Tape & Reel).

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

A: Tape & Reel (TR) packaging supplies components on continuous reels for automated pick-and-place assembly. Cut Tape (CT) packaging supplies components on tape segments, typically used for manual assembly or lower-volume applications. Both formats contain the same component.

Q: Are there any compliance differences between these parts?

A: No. Both V420LU10P and V420LS10P are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.40.4000) classifications.

Q: What determines if a varistor can substitute for another?

A: Substitution requires matching varistor voltage range (Min/Typ/Max), surge current rating, energy absorption, maximum AC/DC voltage ratings, operating temperature range, and mechanical compatibility (mounting type and package dimensions). All these parameters are identical between V420LU10P and V420LS10P.

Q: Does packaging format affect electrical performance?

A: No. The component itself is identical; only the delivery format differs. Electrical performance, thermal characteristics, and reliability are unaffected by whether the part arrives on a reel or cut tape.