SCHURTER 3-136-752 Equivalent & Substitute Parts Reference

Part Overview

The SCHURTER 3-136-752 is an anti-vandal pushbutton switch with SPDT (Single Pole Double Throw) circuit configuration, rated for 5A at 125V AC. This component features panel mount front installation with a round silver button actuator and quick connect termination. The part is classified as obsolete, necessitating identification of active equivalent alternatives that maintain functional and electrical compatibility for new designs and replacement applications.

Substiute Parts

3-136-752

SCHURTER Inc.In Stock: 8693-136-752 Datasheet

Current PartRFQ

3-145-556

SCHURTER Inc.In Stock: 8133-145-556 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCHURTER 3-136-752 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: SCHURTER Inc.
• Series: MSM
• Circuit Configuration: SPDT
• Switch Function: On-Mom
• Current Rating: 5A (AC)
• Voltage Rating: 125V AC
• Mounting Type: Panel Mount, Front
• Type: Anti-Vandal
• Termination Style: Quick Connect - 0.110" (2.8mm)
• Ingress Protection: IP40

Allowable Variations:

• Panel cutout diameter: ±0.10mm tolerance acceptable
• Operating temperature range: May extend beyond original specification
• Mechanical life: May differ from original specification
• Product status: Active alternatives preferred for new applications
• Actuator style: Minor variations (flush vs. standard button) permitted within same functional category

The SCHURTER 3-145-556 qualifies as a direct substitute based on full compliance with all mandatory matching parameters.

Parameter Comparison

Engineering Selection Recommendations

For New Designs: The SCHURTER 3-145-556 is the primary selection for new applications. This part maintains active product status with SCHURTER Inc., ensuring continued availability, technical support, and supply chain reliability. The part satisfies all functional and electrical requirements equivalent to the obsolete 3-136-752.

For Replacement Applications: The SCHURTER 3-145-556 provides direct functional substitution for existing installations using the 3-136-752. The 0.10mm increase in panel cutout diameter (19.10mm vs. 19.00mm) falls within standard mechanical tolerances for circular panel openings and does not require panel modification.

Compliance Considerations: Both parts maintain ROHS3 compliance status. The 3-145-556 is REACH Unaffected, consistent with the original part's regulatory classification. Selection between these parts does not introduce compliance risk.

Operational Differences: The 3-145-556 features a flush button actuator variant compared to the standard button on the 3-136-752. This design variation maintains identical electrical performance and anti-vandal protection characteristics. The extended operating temperature range (-30°C vs. -25°C minimum) on the 3-145-556 provides enhanced thermal performance for demanding environments.

Frequently Asked Questions (FAQ)

Q: Can the SCHURTER 3-145-556 directly replace the 3-136-752 in existing panel installations?

A: Yes. The 3-145-556 provides direct electrical and functional substitution. The panel cutout diameter increases by 0.10mm (19.10mm vs. 19.00mm), which is within standard mechanical tolerances for circular openings and does not require panel modification.

Q: What is the primary difference between these two parts?

A: The 3-136-752 is obsolete; the 3-145-556 is active. Both parts share identical electrical ratings (5A, 125V AC, SPDT), mounting configuration, and termination style. The 3-145-556 features a flush button actuator and extended lower operating temperature limit (-30°C vs. -25°C).

Q: Are there electrical compatibility concerns when substituting the 3-145-556 for the 3-136-752?

A: No. Both parts are rated identically for current (5A AC), voltage (125V AC), circuit configuration (SPDT), and switch function (On-Mom). Electrical compatibility is complete.

Q: Does the flush button actuator on the 3-145-556 affect anti-vandal protection?

A: No. Both parts are classified as anti-vandal type switches. The flush button variant maintains the same protection characteristics as the standard button design.

Q: What is the significance of the panel cutout diameter difference?

A: The 3-145-556 panel cutout is 19.10mm diameter compared to 19.00mm on the 3-136-752. This 0.10mm difference is within standard manufacturing tolerances for circular panel openings and does not require panel rework for replacement applications.

Q: Is the SCHURTER 3-145-556 available in the same packaging as the 3-136-752?

A: Both parts are supplied by SCHURTER Inc. in the MSM series. The 3-136-752 was packaged in boxes; packaging specification for the 3-145-556 is not detailed in the available data.

Q: Can I use the 3-145-556 in applications requiring the full -25°C to 85°C temperature range of the original part?

A: Yes. The 3-145-556 operating temperature range (-30°C to 85°C) encompasses the original specification (-25°C to 85°C), providing equivalent or superior thermal performance.