SCHURTER 0070.1181.T2 Equivalent & Substitute Parts

Part Overview

The SCHURTER 0070.1181.T2 is an 18 V, 3 kA Transient Voltage Suppressor (TVS) varistor in a 20mm disc form factor, designed for single-circuit through-hole applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The part operates across a temperature range of -40°C to 125°C and is ROHS3 compliant.

Substiute Parts

0070.1181.T2

SCHURTER Inc.In Stock: 9340070.1181.T2 Datasheet

Current PartRFQ

ERZ-V20D180

Panasonic Electronic ComponentsIn Stock: 725ERZ-V20D180 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCHURTER 0070.1181.T2 is determined by the following critical parameters:

• Varistor voltage rating (16 V – 20 V nominal range)
• Surge current capacity (3 kA minimum)
• Energy absorption capability (13 J)
• Single-circuit configuration
• Through-hole mounting compatibility
• Disc form factor (mechanical fit within 20mm – 21.5mm tolerance)
• Operating temperature range support
• RoHS3 compliance

The Panasonic ERZ-V20D180 meets all electrical specifications and maintains functional equivalence despite minor package dimension variation (21.5mm vs. 20mm disc).

Parameter Comparison

Engineering Selection Recommendations

The Panasonic ERZ-V20D180 is an active-status substitute for the obsolete SCHURTER 0070.1181.T2. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

The primary consideration is operating temperature range: the SCHURTER part supports -40°C to 125°C, while the Panasonic part supports -40°C to 85°C. Selection should be based on the specific thermal environment of the application. For applications operating above 85°C ambient temperature, the SCHURTER specification cannot be matched by the Panasonic substitute.

The disc package dimension difference (20mm vs. 21.5mm) requires mechanical fit verification within the PCB layout and enclosure constraints. Both parts maintain identical electrical performance across all critical parameters: varistor voltage, surge current, energy absorption, and circuit configuration.

Frequently Asked Questions (FAQ)

Q: Can the Panasonic ERZ-V20D180 directly replace the SCHURTER 0070.1181.T2 in all applications?

A: Electrical substitution is valid for applications operating within -40°C to 85°C ambient temperature. Applications requiring operation above 85°C require the original SCHURTER part or alternative components rated to 125°C. Mechanical fit must be verified due to the 1.5mm disc diameter increase.

Q: What is the significance of the capacitance difference (37000 pF vs. 40000 pF)?

A: Both values are measured at 1 kHz and fall within normal manufacturing tolerance for varistor components. The 3000 pF difference does not affect functional equivalence for transient voltage suppression applications.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are ROHS3 compliant, REACH unaffected, and classified under the same HTSUS code (8533.40.4000). No compliance barriers exist for substitution.

Q: How should the package dimension difference be handled in PCB design?

A: The 21.5mm disc (Panasonic) versus 20mm disc (SCHURTER) requires verification of pad spacing and clearance to adjacent components. Through-hole mounting compatibility remains unchanged; only radial clearance must be confirmed.