SCHURTER 0071.2721.T2 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0071.2721.T2 is a 424 V, 1.75 kA disc varistor designed for transient voltage suppression in through-hole applications. This component belongs to the AVTP series and is classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repair, and new design implementations where this specification remains applicable.

Substiute Parts

0071.2721.T2

SCHURTER Inc.In Stock: 10630071.2721.T2 Datasheet

Current PartRFQ

ERZ-V07D431

Panasonic Electronic ComponentsIn Stock: 10837ERZ-V07D431 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0071.2721.T2 is determined by the following critical parameters:

• Varistor voltage range (minimum 382 V to maximum 466 V nominal specification)
• Surge current capacity (1.75 kA)
• Energy absorption (40 J)
• Maximum AC and DC voltage ratings
• Through-hole mounting configuration
• Single-circuit design
• Operating temperature compatibility (-40°C to 85°C)

The Panasonic ERZ-V07D431 meets these substitution criteria. Both components share identical surge current ratings, energy absorption, operating temperature range, and single-circuit configuration. Varistor voltage specifications overlap within acceptable tolerance bands, and both maintain ROHS3 compliance and REACH unaffected status.

Parameter Comparison

Engineering Selection Recommendations

The Panasonic ERZ-V07D431 is a direct functional substitute for the obsolete SCHURTER 0071.2721.T2. Both components maintain identical surge current capacity, energy absorption, and operating temperature specifications. The varistor voltage ranges overlap within standard tolerance bands, with the Panasonic part rated 6 V higher at typical specification (430 V vs. 424 V).

The primary consideration is physical package size: the ERZ-V07D431 uses a Disc 8.5mm package compared to the 7mm package of the original part. This difference requires verification of available board space and mounting hole dimensions in the target application.

Both parts carry ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment. The Panasonic ERZ-V07D431 maintains active product status, providing long-term availability and supply chain stability compared to the obsolete SCHURTER component.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic ERZ-V07D431 directly replace the SCHURTER 0071.2721.T2 in existing designs?

A: Functional substitution is supported based on matching surge current (1.75 kA), energy absorption (40 J), and operating temperature range (-40°C to 85°C). Physical package size differs (8.5mm vs. 7mm disc), requiring board layout verification.

Q: What is the significance of the varistor voltage difference between the two parts?

A: The SCHURTER part specifies 424 V typical with a range of 382–466 V. The Panasonic part specifies 430 V typical with a range of 387–473 V. Both ranges overlap and are within standard varistor tolerance specifications for this voltage class.

Q: Are there compliance or regulatory differences between these parts?

A: Both components are ROHS3 compliant and REACH unaffected. Both carry EAR99 ECCN classification. No regulatory barriers exist for substitution.

Q: What is the impact of the 11 pF capacitance difference?

A: The SCHURTER part measures 131 pF at 1 kHz, while the Panasonic part measures 120 pF. This 8% difference is within typical varistor manufacturing tolerance and does not affect transient suppression performance in standard applications.

Q: Why is the maximum DC voltage rating lower on the Panasonic part?

A: The SCHURTER part is rated 360 V maximum DC, while the Panasonic part is rated 350 V maximum DC. Both ratings exceed the typical varistor voltage specifications and remain suitable for the same circuit protection applications. Application-specific DC voltage requirements must be confirmed.