BA-2RV303 Equivalent & Substitute Parts Reference

Part Overview

The BA-2RV303 is a snap action SPDT (Single Pole Double Throw) switch manufactured by Honeywell Sensing and Productivity Solutions. This chassis-mounted switch is rated for 20A AC at 125V and features a straight lever actuator with solder lug termination. The product is classified as obsolete, making identification of equivalent substitute parts essential for ongoing maintenance, repair, and system continuity in applications requiring SPDT switching functionality at specified electrical ratings.

Substiute Parts

BA-2RV303

Honeywell Sensing and Productivity SolutionsIn Stock: 1075BA-2RV303 Datasheet

Current PartRFQ

HBS2KGB4ST011C

C&KIn Stock: 992HBS2KGB4ST011C Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BA-2RV303 is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Circuit configuration must be SPDT
• Current rating must support minimum 20A AC
• Voltage rating must support minimum 125V AC and DC
• Switch function must be On-Momentary

Mechanical Equivalence Requirements:

• Actuator type must be lever with straight configuration
• Mounting type must be chassis mount
• Termination style must be solder lug
• Operating force and release force must be within the specified range (71gf operating, 14gf release)

Environmental & Compliance Requirements:

• Operating temperature range must encompass or exceed -55°C to 85°C
• RoHS compliance status must be verified
• Moisture sensitivity level must be MSL 1 or equivalent

The substitute part HBS2KGB4ST011C from C&K meets these core substitution criteria while maintaining functional and mechanical compatibility with the BA-2RV303.

Parameter Comparison

Engineering Selection Recommendations

The HBS2KGB4ST011C from C&K is a functional equivalent to the obsolete BA-2RV303 based on the following engineering criteria:

Electrical Compatibility: Both parts maintain identical current and voltage ratings (20A AC, 500mA DC, 125V AC/DC), ensuring direct electrical substitution in circuits designed for the BA-2RV303.

Mechanical Compatibility: Identical actuator type (straight lever), mounting configuration (chassis mount), and termination method (solder lug) enable direct mechanical replacement without circuit board or enclosure modifications.

Operational Parameters: Operating force (71gf) and release force (14gf) are identical, ensuring consistent user interface behavior and system response characteristics.

Product Status Advantage: The HBS2KGB4ST011C is classified as active production, providing supply chain continuity and long-term availability compared to the obsolete BA-2RV303.

Compliance Status: Both parts meet RoHS requirements. The HBS2KGB4ST011C carries ROHS3 compliance, representing current regulatory standards. Both parts maintain MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling.

Enhanced Environmental Performance: The HBS2KGB4ST011C operates across an extended temperature range (-55°C to 150°C) compared to the BA-2RV303 (-55°C to 85°C), providing additional thermal margin in applications subject to temperature variation. The substitute also provides IP65 ingress protection, offering enhanced environmental sealing not specified for the original part.

Minor Parameter Variations: Operating position, differential travel, and overtravel parameters show minor variations within acceptable mechanical tolerances. These variations do not affect functional compatibility in standard switching applications.

Frequently Asked Questions (FAQ)

Q: Can the HBS2KGB4ST011C directly replace the BA-2RV303 without circuit modifications?

A: Yes. Both parts share identical electrical ratings (20A AC, 125V AC/DC), circuit configuration (SPDT), switch function (On-Momentary), actuator type (straight lever), mounting type (chassis mount), and termination style (solder lug). Direct substitution is supported without circuit redesign.

Q: What are the key differences between these two parts?

A: The primary differences are product status (BA-2RV303 is obsolete; HBS2KGB4ST011C is active production), operating temperature range (BA-2RV303: -55°C to 85°C; HBS2KGB4ST011C: -55°C to 150°C), and ingress protection (HBS2KGB4ST011C provides IP65 rating). Minor variations exist in operating position, differential travel, and overtravel, all within acceptable mechanical tolerances.

Q: Are there packaging differences between these parts?

A: The BA-2RV303 is supplied in standard packaging. The HBS2KGB4ST011C is supplied in bulk packaging. Both maintain MSL 1 rating with unlimited moisture sensitivity protection.

Q: Does the extended temperature range of the HBS2KGB4ST011C affect compatibility?

A: No. The extended operating range (-55°C to 150°C) of the HBS2KGB4ST011C encompasses the original specification (-55°C to 85°C), ensuring full compatibility across all temperature conditions specified for the BA-2RV303.

Q: What is the significance of the IP65 rating on the HBS2KGB4ST011C?

A: The IP65 rating indicates dust-tight and water-resistant construction. This provides enhanced environmental protection compared to the BA-2RV303, which does not specify ingress protection. This enhancement does not affect electrical or mechanical compatibility.

Q: Are both parts RoHS compliant?

A: Yes. The BA-2RV303 is RoHS Compliant. The HBS2KGB4ST011C is ROHS3 Compliant, representing current regulatory standards. Both meet RoHS requirements for hazardous substance restrictions.

Q: What is the mechanical life expectancy of each part?

A: The BA-2RV303 specifies 20,000,000 mechanical cycles. The HBS2KGB4ST011C specifies 150,000 electrical cycles. These represent different measurement criteria and do not indicate reduced durability of the substitute part.

Q: Can the HBS2KGB4ST011C be used in applications requiring the full 20,000,000 cycle mechanical life specification?

A: The HBS2KGB4ST011C provides 150,000 electrical cycles. Applications requiring the full 20,000,000 mechanical cycle specification of the BA-2RV303 must evaluate the substitute part's cycle rating against specific application requirements.