Equivalent & Substitute Parts for Eaton A307306R35 Barrier Block Connector

Part Overview

The Eaton A307306R35 is a 6-circuit barrier block connector with 0.437" (11.10mm) pitch, rated for 30A at 600V, featuring screw termination on top and PC pin termination on bottom. This component is classified as obsolete, necessitating identification of equivalent substitute parts for ongoing applications requiring barrier block connectivity with comparable electrical and mechanical specifications.

Substiute Parts

A307306R35

Eaton - Electronics DivisionIn Stock: 1057A307306R35 Datasheet

Current PartRFQ

430700-06-0

Curtis IndustriesIn Stock: 1144430700-06-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Eaton A307306R35 is determined by the following critical parameters that must align between the main part and substitute candidates:

Primary Compatibility Criteria:

• Terminal block type classification as barrier block
• Circuit count of 6 circuits
• Pitch specification within acceptable tolerance (0.437" ± 0.001")
• Screw-based top termination method
• Dual-wall barrier configuration
• UL94 V-0 flammability rating
• Wire gauge acceptance range of 12-22 AWG
• Voltage rating minimum of 600V

Secondary Consideration:

• Current rating of substitute must not fall below application requirements
• Operating temperature range must encompass -40°C to 105°C minimum

The Curtis Industries 430700-06-0 meets the primary compatibility criteria with a pitch of 0.438" (11.12mm), which represents a 0.02mm variance from the main part specification. However, the current rating of 20A is lower than the Eaton part's 30A rating, requiring evaluation against specific application current demands.

Parameter Comparison

Engineering Selection Recommendations

Curtis Industries 430700-06-0 Substitution Assessment:

The Curtis Industries 430700-06-0 demonstrates functional equivalence in core barrier block architecture, circuit configuration, and electrical safety ratings. The part is currently in active production status, ensuring supply chain availability compared to the obsolete Eaton A307306R35.

Compliance Advantages:

• ROHS3 compliant status aligns with current regulatory requirements
• UL94 V-0 flammability rating maintained
• Active product status provides long-term availability

Parameter Deviations Requiring Application Evaluation:

• Current rating reduced from 30A to 20A: Substitution is valid only for applications operating at 20A or below
• Pitch tolerance variance of 0.02mm (0.438" vs 0.437"): Within typical mechanical tolerance for barrier block connectors
• Operating temperature specification lists 105°C maximum without explicit lower bound: Verify application requirements for -40°C operation
• Insulation material change from thermoplastic to polypropylene: Both materials maintain UL94 V-0 rating

Mounting Configuration Note: The Curtis part supports both chassis/panel and through-hole right-angle mounting, providing additional installation flexibility compared to the Eaton part's through-hole right-angle specification.

Frequently Asked Questions (FAQ)

Q: Can the Curtis Industries 430700-06-0 directly replace the Eaton A307306R35 in all applications?

A: Direct replacement is valid only for applications requiring 20A or less. The Eaton part's 30A rating exceeds the Curtis substitute's 20A rating. Applications operating above 20A require alternative solutions.

Q: What is the significance of the 0.02mm pitch difference between the two parts?

A: The pitch variance from 0.437" to 0.438" represents a 0.02mm difference. For barrier block connectors, this tolerance is within standard mechanical specifications and does not affect PCB footprint compatibility or circuit spacing integrity.

Q: Does the insulation material change from thermoplastic to polypropylene affect performance?

A: Both materials achieve UL94 V-0 flammability classification. The polypropylene insulation in the Curtis part maintains equivalent electrical and thermal performance within the specified operating temperature range.

Q: Is the Curtis Industries 430700-06-0 suitable for applications requiring -40°C operation?

A: The Curtis part specification lists 105°C as the operating temperature maximum without explicit lower temperature boundary. Applications requiring -40°C minimum operation require confirmation of the lower temperature limit with Curtis Industries technical documentation.

Q: What are the advantages of substituting to the Curtis Industries part?

A: The Curtis part offers ROHS3 compliance and active production status, ensuring regulatory alignment and supply chain continuity. The expanded mounting options (chassis/panel in addition to through-hole) provide installation flexibility.

Q: Are there any packaging or inventory considerations for the Curtis Industries substitute?

A: The Curtis Industries 430700-06-0 is available in bulk packaging with 1100 pieces in stock, compared to the Eaton part's 984 pieces. Packaging format should be verified against procurement requirements.