V575LU80B Equivalent & Substitute Parts

Part Overview

The V575LU80B is a 889.5 V varistor manufactured by Littelfuse Inc., rated for 6.5 kA surge current with 220 J energy absorption capacity. This component is classified as a Transient Voltage Suppressor (TVS) in disc form factor (20mm) and is designed for through-hole mounting applications. The part is currently obsolete, making equivalent substitutes necessary for ongoing system support and new designs requiring this voltage and surge rating specification.

Substiute Parts

V575LU80B

Littelfuse Inc.In Stock: 916V575LU80B Datasheet

Current PartRFQ

V575LU80BP

Littelfuse Inc.In Stock: 1148V575LU80BP Datasheet

DirectRFQ

V575LS80BP

Littelfuse Inc.In Stock: 783V575LS80BP Datasheet

Parametric EquivalentRFQ

V575LS80BPX10

Littelfuse Inc.In Stock: 1033V575LS80BPX10 Datasheet

Parametric EquivalentRFQ

V575LS80BPX2855

Littelfuse Inc.In Stock: 1017V575LS80BPX2855 Datasheet

Parametric EquivalentRFQ

V575LT80BP

Littelfuse Inc.In Stock: 926V575LT80BP Datasheet

Parametric EquivalentRFQ

V575LT80BPX10

Littelfuse Inc.In Stock: 678V575LT80BPX10 Datasheet

Parametric EquivalentRFQ

V575LT80BPX2855

Littelfuse Inc.In Stock: 883V575LT80BPX2855 Datasheet

Parametric EquivalentRFQ

V575LU80BPX10

Littelfuse Inc.In Stock: 966V575LU80BPX10 Datasheet

Parametric EquivalentRFQ

V575LU80BPX2855

Littelfuse Inc.In Stock: 1221V575LU80BPX2855 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the V575LU80B is determined by strict equivalence across all critical electrical and mechanical parameters. The following parameters must remain identical for direct substitution:

• Varistor Voltage (Typical): 889.5 V
• Varistor Voltage Range: 819 V (Min) – 960 V (Max)
• Maximum AC Voltage: 575 V
• Maximum DC Voltage: 730 V
• Current - Surge: 6.5 kA
• Energy Absorption: 220 J
• Number of Circuits: 1
• Capacitance @ 1 MHz: 450 pF
• Operating Temperature Range: -55°C to 85°C
• Mounting Type: Through Hole
• Package / Case: Disc 20mm
• RoHS Status: ROHS3 Compliant

All substitute parts listed maintain these specifications. Differences exist only in series designation (LU, LS, LT), packaging format (bulk vs. tape & reel), and product status (obsolete vs. active). The V575LU80B is available only in bulk packaging; all active equivalents are supplied in tape & reel format.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain full electrical and mechanical equivalence to the V575LU80B. Selection among active alternatives is based on product availability and packaging requirements:

LU Series (V575LU80BP, V575LU80BPX10, V575LU80BPX2855): Direct series match to the original part. These maintain the LU designation and are available in active status with tape & reel packaging. Highest inventory availability at 1072 and 1136 units.

LS Series (V575LS80BP, V575LS80BPX10, V575LS80BPX2855): Parametric equivalent with LS series designation. All electrical and mechanical specifications are identical. Available in active status with tape & reel packaging.

LT Series (V575LT80BP, V575LT80BPX10, V575LT80BPX2855): Parametric equivalent with LT series designation. All electrical and mechanical specifications are identical. Available in active status with tape & reel packaging.

All substitute parts are ROHS3 compliant with MSL rating of 1 (Unlimited). The primary distinction among substitutes is packaging quantity designation (standard vs. X10 vs. X2855 reel configurations), which does not affect electrical performance or mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can I use any of these substitute parts in place of the V575LU80B?

A: Yes. All listed parts maintain identical electrical specifications (889.5 V typical varistor voltage, 6.5 kA surge current, 220 J energy absorption) and mechanical form factor (20mm disc, through-hole mounting). The only differences are series designation and packaging format.

Q: What do the suffixes X10 and X2855 indicate?

A: These suffixes denote different tape & reel packaging quantities. X10 and X2855 represent different reel configurations for automated assembly. The electrical and mechanical specifications of the component itself remain unchanged.

Q: Why is the original V575LU80B listed as obsolete?

A: The V575LU80B is no longer in active production. All active equivalents (LU, LS, and LT series variants) are available as direct replacements with identical performance characteristics.

Q: Are there any compliance differences between the substitute parts?

A: No. All substitute parts carry identical RoHS3 compliance status and MSL rating of 1 (Unlimited). REACH status is listed as "REACH Unaffected" for all active variants.

Q: Does the series designation (LU, LS, LT) affect performance?

A: No. The series designation reflects internal Littelfuse manufacturing classification but does not alter electrical performance, voltage rating, surge current capacity, or energy absorption specifications. All three series are parametrically equivalent for this voltage and current rating.

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

A: All parts operate across -55°C to 85°C ambient temperature range, maintaining full specification compliance throughout this range.

Q: Can I mix different series in the same design?

A: Yes. Since all series (LU, LS, LT) maintain identical electrical and mechanical specifications, they are interchangeable within the same circuit application.