TE Connectivity AMP Connectors 1546963-4 Equivalent & Substitute Parts

Part Overview

The TE Connectivity AMP Connectors 1546963-4 is a 4-circuit barrier block terminal connector with 0.438" (11.12mm) pitch spacing, designed for chassis and panel mounting applications. This component operates at 600V with a 20A current rating and accommodates wire gauges from 12-22 AWG. The part is currently active in production and maintains full RoHS compliance with UL94 V-2 flammability rating. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when alternative sourcing is required.

Substiute Parts

1546963-4

TE Connectivity AMP ConnectorsIn Stock: 8381546963-4 Datasheet

Current PartRFQ

430000-04-0

Curtis IndustriesIn Stock: 960430000-04-0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TE Connectivity 1546963-4 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Terminal Block Type: Barrier Block
• Number of Circuits: 4
• Pitch: 0.438" (11.12mm)
• Current Rating: 20A
• Voltage Rating: 600V
• Wire Gauge: 12-22 AWG
• Top Termination: Screws
• Bottom Termination: Closed
• Barrier Type: 2 Wall (Dual)
• Mounting Type: Chassis, Panel

The Curtis Industries 430000-04-0 meets all mandatory matching parameters and qualifies as a direct substitute. Both parts share identical electrical specifications, mechanical dimensions, and functional characteristics required for interchangeable installation in terminal block applications.

Parameter Comparison

Engineering Selection Recommendations

TE Connectivity 1546963-4 is the primary specification when:

• Operating temperature range of -60°C to 105°C is required
• UL94 V-2 flammability rating is specified in design documentation
• Thermoplastic insulation material is mandated by application requirements
• RoHS compliance with vendor-defined REACH status is acceptable

Curtis Industries 430000-04-0 is an acceptable substitute when:

• Operating temperature does not require the -60°C lower limit
• UL94 V-0 flammability rating meets or exceeds application requirements
• Polypropylene (PP) insulation material is compatible with the application
• ROHS3 compliance and REACH Unaffected status satisfy regulatory requirements
• Bulk packaging is acceptable for procurement and inventory management

Both parts maintain identical electrical performance, mechanical compatibility, and functional characteristics. Selection between these parts depends on specific application constraints related to temperature range, flammability rating, and insulation material properties.

Frequently Asked Questions (FAQ)

Q: Can the Curtis Industries 430000-04-0 be used as a direct replacement for the TE Connectivity 1546963-4?

A: The Curtis Industries 430000-04-0 is functionally equivalent for applications where the operating temperature does not require the -60°C lower limit and where UL94 V-0 flammability rating is acceptable. All electrical specifications, mechanical dimensions, and circuit configurations are identical. Verify application temperature requirements and flammability specifications before substitution.

Q: What are the key differences between these two barrier block connectors?

A: The primary differences are: (1) insulation material—TE Connectivity uses Thermoplastic while Curtis Industries uses Polypropylene (PP); (2) flammability rating—TE Connectivity is UL94 V-2 while Curtis Industries is UL94 V-0; (3) operating temperature range—TE Connectivity specifies -60°C to 105°C while Curtis Industries specifies only 105°C upper limit; (4) REACH status—TE Connectivity is Vendor Undefined while Curtis Industries is REACH Unaffected.

Q: Are the pitch and circuit configurations identical?

A: Yes. Both parts feature 4 circuits with 0.438" (11.12mm) pitch spacing, single-row configuration, and identical mechanical mounting interfaces for chassis and panel applications.

Q: What wire gauges are supported by both parts?

A: Both the TE Connectivity 1546963-4 and Curtis Industries 430000-04-0 accommodate wire gauges from 12-22 AWG with identical screw termination mechanisms.

Q: Do both parts have the same electrical ratings?

A: Yes. Both parts are rated for 20A current and 600V voltage with identical dual-wall barrier construction and closed bottom termination.

Q: What is the significance of the different flammability ratings?

A: The TE Connectivity 1546963-4 carries UL94 V-2 rating while the Curtis Industries 430000-04-0 carries UL94 V-0 rating. UL94 V-0 represents a higher flammability performance standard. Applications with specific flammability requirements must reference design specifications to determine acceptability of either rating.

Q: How do the insulation materials differ in performance?

A: TE Connectivity uses Thermoplastic insulation while Curtis Industries uses Polypropylene (PP). Both materials provide electrical insulation and mechanical support. Material selection depends on application-specific requirements for chemical resistance, temperature stability, and mechanical properties.

Q: What is the difference in packaging between these parts?

A: The TE Connectivity 1546963-4 packaging is not specified in available data. The Curtis Industries 430000-04-0 is supplied in Bulk packaging. Confirm packaging requirements with procurement specifications.

Q: Are both parts RoHS compliant?

A: Yes. The TE Connectivity 1546963-4 is RoHS Compliant. The Curtis Industries 430000-04-0 is ROHS3 Compliant. Both meet RoHS requirements for hazardous substance restrictions.