Equivalent & Substitute Parts: A21941007RC

Part Overview

The Eaton A21941007RC is a 10-circuit barrier block connector with 0.375" (9.53mm) pitch, designed for chassis and panel mounting applications. This component features screw termination with captive plate on the top and quick connect insulated termination on the bottom, rated for 30A at 300V with wire gauge compatibility of 12-22 AWG. The product is classified as obsolete, necessitating identification of active equivalent components to maintain system functionality and ensure continued availability for new designs and field replacements.

Substiute Parts

A21941007RC

Eaton - Electronics DivisionIn Stock: 1220A21941007RC Datasheet

Current PartRFQ

4-1546700-8

TE Connectivity AMP ConnectorsIn Stock: 10224-1546700-8 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the A21941007RC is determined by strict alignment with the following critical parameters:

Mandatory Matching Parameters:

• Terminal block type: Barrier block configuration
• Number of circuits: 10 circuits
• Pitch specification: 0.375" (9.53mm)
• Number of rows: Single row
• Top termination method: Screws with captive plate
• Bottom termination method: Quick connect (0.250"), insulated
• Barrier type: 2 wall (dual) construction
• Wire gauge compatibility: 12-22 AWG
• Mounting configuration: Chassis and panel mounting
• Insulation material: Thermoplastic
• Flammability rating: UL94 V-0

Allowable Variation Parameters:

• Current rating: Substitute parts may have lower current ratings than the original 30A specification, provided the application does not exceed the substitute's rating
• Voltage rating: Must meet or exceed 300V
• Operating temperature range: Substitute parts must support the application's operating conditions
• RoHS compliance status: May differ from original
• Terminal screw finish: May vary
• Product status: Active status preferred for long-term availability

The TE Connectivity AMP Connectors part 4-1546700-8 qualifies as a substitute based on matching all mandatory parameters. The reduced current rating of 20A versus the original 30A represents a functional limitation that must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Substitution Feasibility:

The TE Connectivity 4-1546700-8 is functionally equivalent to the Eaton A21941007RC for applications where the 20A current rating is sufficient. Both components share identical mechanical and electrical specifications for circuit count, pitch, termination methods, barrier configuration, and wire gauge compatibility.

Product Status Consideration:

The A21941007RC is classified as obsolete, while the 4-1546700-8 maintains active status. Active product status ensures continued manufacturing, availability, and technical support from the supplier. For new designs and long-term field replacement strategies, the active substitute part provides superior supply chain reliability.

Compliance and Certification:

Both parts meet UL94 V-0 flammability requirements and share identical ECCN and HTSUS classifications. The TE Connectivity substitute achieves RoHS compliance, whereas the original Eaton part does not. Applications subject to RoHS regulatory requirements benefit from substitution to the compliant alternative.

Current Rating Differential:

The primary technical distinction is the current rating reduction from 30A to 20A. Circuit designs operating at or below 20A continuous current experience no functional impact. Designs requiring current capacity exceeding 20A cannot use this substitute without circuit redesign or parallel connection strategies.

Temperature Range:

The original part specifies -40°C to 105°C operation, while the substitute specifies 105°C maximum. Applications requiring operation below 0°C require evaluation of the substitute's low-temperature performance limits.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 4-1546700-8 directly replace the Eaton A21941007RC in existing assemblies?

A: Direct mechanical and electrical replacement is possible when the application current requirement does not exceed 20A. The identical pitch, circuit count, termination methods, and mounting configuration ensure physical and functional compatibility. Applications drawing more than 20A require circuit modification or alternative solutions.

Q: What is the significance of the current rating difference between 30A and 20A?

A: Current rating defines the maximum continuous current the terminal block safely conducts without exceeding temperature limits. The 20A rating of the substitute is 33% lower than the original 30A specification. Applications must operate within the substitute's 20A limit to maintain thermal stability and component reliability.

Q: Are the termination methods identical between the two parts?

A: Yes. Both parts feature screw termination with captive plate on the top connection and quick connect (0.250") insulated termination on the bottom. Wire gauge compatibility remains 12-22 AWG for both components.

Q: Does the RoHS compliance difference affect substitution decisions?

A: RoHS compliance becomes relevant only when regulatory requirements mandate lead-free and restricted substance compliance. The TE Connectivity substitute meets RoHS requirements, while the original Eaton part does not. Applications subject to RoHS regulations benefit from substitution to the compliant alternative.

Q: What is the impact of the operating temperature range difference?

A: The original part operates from -40°C to 105°C, while the substitute specifies 105°C maximum. Applications requiring operation below 0°C must evaluate whether the substitute's lower temperature limit accommodates the intended environment. Applications within 0°C to 105°C experience no temperature-related limitations.

Q: Are both parts suitable for chassis and panel mounting?

A: Yes. Both the Eaton A21941007RC and TE Connectivity 4-1546700-8 support chassis and panel mounting configurations. Mounting hardware and installation procedures remain compatible.

Q: What is the barrier type, and does it differ between the two parts?

A: Both parts feature 2 wall (dual) barrier construction, which provides electrical isolation between adjacent circuits. This specification is identical across both components.

Q: How does the obsolete status of the original part affect long-term availability?

A: Obsolete products typically enter end-of-life phases with declining inventory and eventual discontinuation. The active status of the TE Connectivity substitute ensures continued manufacturing and availability for future procurement needs, making it the preferred choice for new designs and long-term field support strategies.