BZ-2RW82 Equivalent & Substitute Parts

Part Overview

The BZ-2RW82 is a snap action SPDT switch manufactured by Honeywell Sensing and Productivity Solutions, designed for chassis mount applications with solder lug termination. This switch is rated for 15A AC at 125V and features a lever roller actuator with on-momentary switching function. The product is currently obsolete, making identification of compatible substitute components essential for design continuity and procurement planning.

Substiute Parts

BZ-2RW82

Honeywell Sensing and Productivity SolutionsIn Stock: 837BZ-2RW82 Datasheet

Current PartRFQ

HBS2KGB4SA011C

C&KIn Stock: 1010HBS2KGB4SA011C Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BZ-2RW82 is determined by strict equivalence across the following critical parameters:

Circuit and Function Compatibility: The substitute must maintain SPDT configuration with on-momentary switching function to preserve circuit behavior in the original application.

Electrical Ratings: The substitute must support the required voltage ratings (125V AC/DC). Current rating of the substitute may equal or exceed the original 15A AC specification, as higher ratings provide backward compatibility without functional degradation.

Mechanical Interface: Chassis mount configuration with solder lug termination is mandatory for direct replacement without redesign of mounting and connection points.

Actuator Characteristics: Lever roller actuator type with operating and release forces of 99gf and 21gf respectively ensures consistent user interaction and system response.

Environmental Compliance: RoHS compliance status and MSL rating must be maintained or improved to meet regulatory and manufacturing requirements.

The HBS2KGB4SA011C from C&K meets these substitution criteria with the following allowances: higher AC current rating (20A versus 15A), extended operating temperature range (-55°C to 150°C versus -55°C to 85°C), and improved ingress protection (IP65).

Parameter Comparison

Engineering Selection Recommendations

The HBS2KGB4SA011C is a qualified substitute for the obsolete BZ-2RW82 based on the following engineering criteria:

Functional Equivalence: Both switches provide identical SPDT on-momentary switching with matching actuator force characteristics (99gf operating, 21gf release), ensuring equivalent user interface and circuit response.

Electrical Compatibility: The HBS2KGB4SA011C supports all required voltage and current specifications. The increased AC current rating (20A versus 15A) provides margin above the original 15A requirement without introducing compatibility issues.

Regulatory Compliance: The HBS2KGB4SA011C holds ROHS3 compliance, which supersedes the RoHS compliance of the original part, meeting current regulatory standards. Both parts maintain MSL 1 rating for unlimited moisture sensitivity protection.

Environmental Performance: The extended operating temperature range of the HBS2KGB4SA011C (-55°C to 150°C) encompasses the original specification (-55°C to 85°C), providing enhanced thermal performance for demanding applications.

Mechanical Interface: Identical chassis mount configuration with solder lug termination enables direct physical and electrical replacement without modification to existing designs.

Product Status: The HBS2KGB4SA011C is active production status, ensuring long-term availability and supply chain stability compared to the obsolete BZ-2RW82.

Frequently Asked Questions (FAQ)

Q: Can the HBS2KGB4SA011C directly replace the BZ-2RW82 without circuit modification?

A: Yes. Both switches share identical SPDT circuit configuration, on-momentary function, voltage ratings (125V AC/DC), and mechanical interface (chassis mount, solder lug termination). Direct substitution is supported without circuit redesign.

Q: Why is the current rating higher on the substitute part?

A: The HBS2KGB4SA011C is rated for 20A AC compared to the original 15A AC. Higher current ratings indicate improved electrical capacity and do not create compatibility issues in applications requiring 15A or less. The switch will operate safely within the original design parameters.

Q: Are the actuator forces identical between the two parts?

A: Yes. Both the BZ-2RW82 and HBS2KGB4SA011C specify 99gf operating force and 21gf release force, ensuring identical tactile response and switching behavior in the application.

Q: What is the significance of the IP65 rating on the substitute?

A: The HBS2KGB4SA011C includes IP65 ingress protection (dust tight, water resistant), which the original BZ-2RW82 does not specify. This enhancement provides additional environmental protection without affecting core switching function.

Q: Does the extended temperature range of the substitute affect compatibility?

A: No. The HBS2KGB4SA011C operating range (-55°C to 150°C) fully encompasses the original specification (-55°C to 85°C). Applications operating within the original temperature limits will function identically on both parts.

Q: Are both parts RoHS compliant?

A: Yes. The BZ-2RW82 is RoHS compliant, and the HBS2KGB4SA011C is ROHS3 compliant. ROHS3 represents current regulatory standards and is fully compatible with RoHS requirements.

Q: What is the packaging format for both parts?

A: Both the BZ-2RW82 and HBS2KGB4SA011C are supplied in bulk packaging, suitable for manufacturing assembly and component procurement workflows.