TMOV20R575E Equivalent & Substitute Parts

Part Overview

The TMOV20R575E is a 952 V, 10 kA Transient Voltage Suppressor (TVS) varistor manufactured by Littelfuse in a through-hole disc 20mm package. This component is designed for transient voltage protection in electronic circuits with a rated surge current capacity of 10 kA and energy dissipation of 375 J. The part is currently classified as obsolete, making identification of active equivalent substitutes essential for ongoing design support and procurement.

Substiute Parts

TMOV20R575E

LittelfuseIn Stock: 1192TMOV20R575E Datasheet

Current PartRFQ

TMOV20RP575E

Littelfuse Inc.In Stock: 3158TMOV20RP575E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TMOV20R575E is determined by strict equivalence across electrical and mechanical parameters. The substitute part must maintain identical specifications for:

• Varistor voltage rating (952 V typical, 857 V - 1.047 kV range)
• Surge current capacity (10 kA)
• Energy dissipation (375 J)
• Capacitance at 1 MHz (275 pF)
• Operating temperature range (-55°C to 85°C)
• Mounting configuration (through-hole)
• Package form factor (disc 20mm)
• Number of circuits (1)
• Thermal protection feature

The TMOV20RP575E meets all these criteria and is classified as an active product, providing a direct functional and mechanical replacement for the obsolete TMOV20R575E.

Parameter Comparison

Engineering Selection Recommendations

The TMOV20RP575E is the direct equivalent substitute for the obsolete TMOV20R575E. Both parts are manufactured by Littelfuse and share identical electrical and mechanical specifications across all critical parameters including varistor voltage, surge current rating, energy dissipation, and package form factor.

The primary distinction between these parts is product status and regulatory compliance. The TMOV20R575E is obsolete and RoHS non-compliant, while the TMOV20RP575E is an active product with ROHS3 compliance. For new designs or ongoing procurement, the TMOV20RP575E is the appropriate selection. Both parts maintain identical moisture sensitivity levels and export classifications.

Frequently Asked Questions (FAQ)

Q: Can TMOV20RP575E be used as a direct replacement for TMOV20R575E in existing designs?

A: Yes. The TMOV20RP575E is electrically and mechanically identical to the TMOV20R575E across all specified parameters. No circuit modifications or re-qualification are required for substitution based on the provided electrical and mechanical specifications.

Q: What is the difference between TMOV20R575E and TMOV20RP575E?

A: The parts are functionally equivalent. The primary differences are product status (obsolete vs. active) and RoHS compliance (non-compliant vs. ROHS3 compliant). All electrical ratings, surge capacity, energy dissipation, and package dimensions are identical.

Q: Are there any packaging differences between these parts?

A: Both parts use identical through-hole disc 20mm packaging. The TMOV20R575E is supplied in standard packaging, while the TMOV20RP575E is supplied in bulk packaging. The component form factor and mounting interface remain unchanged.

Q: What parameters determine substitution eligibility for TMOV20R575E?

A: Substitution is based on matching varistor voltage rating (952 V typical), surge current capacity (10 kA), energy dissipation (375 J), capacitance (275 pF @ 1 MHz), operating temperature range (-55°C to 85°C), mounting type (through-hole), and package form (disc 20mm). All these parameters must be identical for a valid substitute.

Q: Is TMOV20RP575E suitable for new product designs?

A: Yes. The TMOV20RP575E is an active product with ROHS3 compliance, making it appropriate for new designs. It provides the same electrical performance and protection characteristics as the obsolete TMOV20R575E.