ZB3270 Equivalent & Substitute Parts

Part Overview

The ZB3270 is a cartridge fuse holder manufactured by MPD (Memory Protection Devices) designed for 10 A, 250V applications with panel mount configuration. This component accommodates 3AG/1/4" x 1-1/4" cartridge fuses and features a single circuit with vertical orientation and solder lug termination.

The ZB3270 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this fuse holder.

Substiute Parts

ZB3270

MPD (Memory Protection Devices)In Stock: 772ZB3270 Datasheet

Current PartRFQ

0031.1758

SCHURTER Inc.In Stock: 12450031.1758 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ZB3270 are identified based on mechanical and electrical compatibility within the cartridge fuse holder category. The critical parameters determining substitution eligibility are:

• Fuse size accommodation: 0.25" Dia x 1.26" L (6.35mm x 32mm) — 3AG/1/4" x 1-1/4" standard
• Mounting configuration: Panel mount with vertical orientation
• Termination method: Solder lug connection
• Voltage rating: 250V minimum
• Number of circuits: Single circuit design
• Fuseholder type: Cartridge holder

The substitute part 0031.1758 (SCHURTER Inc.) meets these mechanical and electrical compatibility criteria. While the current rating differs (20 A versus 10 A), the fuse holder itself is current-agnostic; the actual current protection is determined by the cartridge fuse installed, not the holder. The holder's 20 A rating indicates its maximum safe operating capacity and does not prevent use with lower-rated fuses.

Parameter Comparison

Engineering Selection Recommendations

The 0031.1758 (SCHURTER Inc.) is a direct mechanical and electrical substitute for the obsolete ZB3270. Both components share identical fuse accommodation specifications, mounting configuration, termination method, and voltage rating.

The substitute part offers the advantage of active product status, ensuring ongoing availability and supply chain support. Both parts maintain equivalent regulatory compliance: RoHS compliance (ZB3270 is RoHS Compliant; 0031.1758 is ROHS3 Compliant) and REACH Unaffected status. Both are classified under EAR99 export control.

The higher current rating of the 0031.1758 (20 A versus 10 A) does not create incompatibility. The fuse holder rating represents its maximum safe operating capacity. Actual circuit protection is determined by the cartridge fuse selected for installation. A 10 A fuse can be installed in a 20 A rated holder without functional or safety issues.

Frequently Asked Questions (FAQ)

Q: Can the 0031.1758 directly replace the ZB3270 in existing designs?

A: Yes. Both components accommodate identical fuse sizes (0.25" Dia x 1.26" L), feature panel mount configuration with vertical orientation, and utilize solder lug termination. Mechanical and electrical compatibility is confirmed.

Q: Why does the substitute part have a higher current rating (20 A vs. 10 A)?

A: The fuse holder's current rating indicates its maximum safe operating capacity. It does not restrict the use of lower-rated fuses. A 10 A cartridge fuse installed in a 20 A rated holder provides the same 10 A circuit protection as the original design.

Q: Are there compliance or regulatory differences between the two parts?

A: Both parts are RoHS compliant, REACH Unaffected, and classified as EAR99. The ZB3270 carries RoHS Compliant status, while the 0031.1758 carries ROHS3 Compliant status. Both meet current regulatory requirements for electronic component use.

Q: What is the advantage of selecting the 0031.1758 over the ZB3270?

A: The 0031.1758 is classified as Active product status, ensuring continued manufacturing, availability, and supply chain support. The ZB3270 is obsolete and subject to discontinuation and inventory depletion.

Q: Are there packaging differences between these parts?

A: The ZB3270 is packaged as individual units (packaging designation: -). The 0031.1758 is supplied in Bulk packaging. Confirm packaging requirements with your procurement specifications.