Phoenix Contact 1770960 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1770960 is a 4-position terminal block header with male pins, shrouded design, and 90° right-angle through-hole mounting. It operates at 12A (IEC) / 15A (UL) and 400V (IEC) / 300V (UL), designed for industrial control and power distribution applications. The part is currently obsolete, making identification of active equivalent components essential for ongoing system maintenance and new designs requiring compatible interconnection solutions.

Substiute Parts

1770960

Phoenix ContactIn Stock: 7131770960 Datasheet

Current PartRFQ

1757491

Phoenix ContactIn Stock: 30061757491 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1770960 is determined by strict equivalence across the following critical parameters:

• Electrical Compatibility: Current and voltage ratings must match or exceed the original specification (12A IEC / 15A UL; 400V IEC / 300V UL)
• Physical Compatibility: Number of positions (4), pitch (5.00mm), header orientation (90° right angle), and connector type (male pins, shrouded) must be identical
• Mounting and Termination: Through-hole solder termination is required
• Safety Compliance: UL94 V-0 flammability rating and RoHS compliance status

The Phoenix Contact 1757491 meets all substitution criteria as an active-status equivalent within the COMBICON MSTBA series.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1757491 is the direct active-status substitute for the obsolete 1770960. Both components are identical in electrical performance, mechanical dimensions, and safety certifications. The 1757491 is currently in active production with higher inventory availability (2956 pcs vs. 685 pcs for the original part).

The housing material differs (PBT vs. PA/Nylon); both materials meet UL94 V-0 flammability requirements and are suitable for industrial terminal block applications. The insulation height variance (0.327" vs. 0.339") is within acceptable mechanical tolerance for standard through-hole PCB mounting.

The 1757491 carries ROHS3 compliance, representing current regulatory alignment, while the 1770960 carries legacy RoHS compliance status. For new designs and ongoing procurement, the 1757491 is the recommended selection.

Frequently Asked Questions (FAQ)

Q: Can the 1757491 be used as a direct replacement for the 1770960 in existing assemblies?

A: Yes. Both components share identical electrical ratings (12A IEC / 15A UL; 400V IEC / 300V UL), connector configuration (4-position, 5.00mm pitch, 90° right angle), and through-hole solder termination. The minor insulation height difference (0.012") does not affect PCB mounting compatibility.

Q: What is the difference in housing material between these parts?

A: The 1770960 uses Polybutylene Terephthalate (PBT); the 1757491 uses Polyamide (PA/Nylon). Both materials meet UL94 V-0 flammability classification and are standard for industrial terminal block applications. Material selection does not affect electrical or mechanical performance in this application.

Q: Why is the 1770960 listed as obsolete?

A: The 1770960 has been superseded by the 1757491 within the COMBICON MSTBA series. Phoenix Contact has transitioned production to the newer part number, which maintains full electrical and mechanical compatibility while offering improved regulatory compliance (ROHS3).

Q: Are there packaging differences between these parts?

A: The 1770960 was supplied with unspecified packaging; the 1757491 is supplied in bulk packaging. Both are suitable for component-level procurement and assembly operations.

Q: What compliance certifications apply to both parts?

A: Both components are UL94 V-0 rated for flammability, RoHS compliant, MSL 1 (unlimited moisture sensitivity), and classified under ECCN EAR99 for export purposes. The 1757491 carries current ROHS3 certification.