BZ-2R-P5 Equivalent & Substitute Parts Reference

Part Overview

The BZ-2R-P5 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with screw terminal connections. This component features a 15A AC / 500mA DC current rating at 125V AC and DC, with round pin plunger actuation. The product is classified as obsolete, necessitating identification of equivalent alternatives for ongoing system support and new designs requiring similar electrical and mechanical characteristics.

Substiute Parts

BZ-2R-P5

Honeywell Sensing and Productivity SolutionsIn Stock: 1165BZ-2R-P5 Datasheet

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GPTCNC11

ZF ElectronicsIn Stock: 740GPTCNC11 Datasheet

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TZ-1G

Omron Automation and SafetyIn Stock: 1058TZ-1G Datasheet

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Z-01HD55-B

Omron Automation and SafetyIn Stock: 1035Z-01HD55-B Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BZ-2R-P5 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Circuit configuration: SPDT
• Switch function: On-Momentary
• Actuator type: Round pin plunger
• Termination style: Screw terminal
• Voltage rating: Minimum 125V AC

Secondary Compatibility Criteria:

• Current rating: Equal to or greater than application requirement
• Mounting type: Chassis mount preferred for direct replacement
• Operating temperature range: Must encompass application environment
• Mechanical life: Minimum 20,000,000 cycles

The substitute parts identified (GPTCNC11, TZ-1G, Z-01HD55-B) share the core SPDT circuit topology and on-momentary function with round pin plunger actuation and screw terminal connections. However, each substitute exhibits variations in current rating, voltage specifications, mounting configuration, and operating parameters that determine suitability for specific applications.

Parameter Comparison

Engineering Selection Recommendations

GPTCNC11 (ZF Electronics)

The GPTCNC11 provides electrical equivalence to the BZ-2R-P5 with matching 15A AC and 125V AC ratings. Both components share identical mechanical life specifications (20,000,000 cycles) and SPDT on-momentary functionality. The primary distinction is mounting configuration: GPTCNC11 is panel mount versus BZ-2R-P5 chassis mount. This substitute is suitable for applications where panel mounting is acceptable and operating temperature range of 0°C to 55°C is sufficient. GPTCNC11 holds active product status with ROHS3 compliance.

TZ-1G (Omron Automation and Safety)

The TZ-1G is a chassis mount SPDT switch with on-momentary function and identical operating position (0.625" / 15.9mm) to the BZ-2R-P5. However, current rating is significantly reduced to 1A AC/DC, making this substitute suitable only for low-current applications. The TZ-1G offers extended operating temperature range (-65°C to 400°C) and active product status with ROHS3 compliance. Mechanical life is reduced to 100,000 cycles. This component is not suitable for applications requiring the full 15A AC current capacity of the original BZ-2R-P5.

Z-01HD55-B (Omron Automation and Safety)

The Z-01HD55-B is a chassis mount SPDT switch with on-momentary function and 20,000,000 cycle mechanical life matching the BZ-2R-P5. Current rating is limited to 100mA AC/DC, restricting this substitute to very low-current applications. The Z-01HD55-B provides enhanced ingress protection (IP62) and superior electrical life (500,000 cycles). Operating temperature range is -15°C to 80°C. This component is not suitable for applications requiring the full 15A AC current capacity of the original BZ-2R-P5.

Selection Criteria Summary:

• For direct electrical replacement with 15A AC capability: GPTCNC11 (with panel mount accommodation)
• For low-current applications with extended temperature range: TZ-1G
• For low-current applications with enhanced environmental protection: Z-01HD55-B
• All substitutes maintain SPDT circuit topology, on-momentary function, round pin plunger actuation, and screw terminal connections

Frequently Asked Questions (FAQ)

Q: Can GPTCNC11 directly replace BZ-2R-P5 in existing designs?

A: GPTCNC11 provides electrical equivalence with matching 15A AC and 125V AC ratings. The primary consideration is mounting type: GPTCNC11 is panel mount while BZ-2R-P5 is chassis mount. Physical installation modifications may be required. Operating temperature range differs (0°C to 55°C for GPTCNC11 versus -55°C to 85°C for BZ-2R-P5), which must be evaluated against application requirements.

Q: Why are TZ-1G and Z-01HD55-B listed as substitutes if current ratings are significantly lower?

A: These components are listed as substitutes based on the provided input data. However, they are suitable only for applications with current requirements of 1A or less (TZ-1G) and 100mA or less (Z-01HD55-B). Applications requiring the full 15A AC capacity of BZ-2R-P5 cannot use these substitutes.

Q: What is the impact of different operating positions among substitute parts?

A: Operating position affects mechanical actuation characteristics. BZ-2R-P5 and TZ-1G share identical operating position (0.625" / 15.9mm), while GPTCNC11 (0.825" / 21.0mm) and Z-01HD55-B (0.846" / 21.5mm) have greater travel distances. This parameter must align with mechanical design constraints and actuator specifications in the application.

Q: Are all substitute parts RoHS compliant?

A: Yes. BZ-2R-P5 and Z-01HD55-B are RoHS Compliant. GPTCNC11 and TZ-1G are ROHS3 Compliant. All substitutes meet RoHS requirements.

Q: What is the significance of product status (Obsolete vs. Active)?

A: BZ-2R-P5 is classified as obsolete, indicating discontinued manufacturing and limited availability. All substitute parts (GPTCNC11, TZ-1G, Z-01HD55-B) maintain active product status, ensuring ongoing availability and manufacturing support.

Q: How do packaging differences affect component selection?

A: BZ-2R-P5 is supplied in standard packaging (not specified). GPTCNC11 is supplied in bulk packaging, TZ-1G in tray packaging, and Z-01HD55-B in bulk packaging. Packaging affects handling, storage, and integration into assembly processes but does not impact electrical or mechanical performance.