Phoenix Contact 1770973 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1770973 is a 5-position terminal block header with male pins, shrouded design, and 90° right-angle orientation for through-hole mounting. This component is classified as obsolete, making identification of equivalent and substitute parts essential for ongoing system maintenance and new design implementations. The part operates at IEC ratings of 12A/400V and UL ratings of 15A/300V, with solder termination and 5.00mm pitch spacing.

Substiute Parts

1770973

Phoenix ContactIn Stock: 9531770973 Datasheet

Current PartRFQ

1757271

Phoenix ContactIn Stock: 8561757271 Datasheet

DirectRFQ

796638-5

TE Connectivity AMP ConnectorsIn Stock: 1042796638-5 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1770973 is determined by the following critical parameters:

• Position Count & Pitch Compatibility: All substitute parts must maintain 5 positions with pitch spacing of 5.00mm or 5.08mm (industry-standard tolerance for 0.197" to 0.200" spacing)
• Electrical Ratings: Minimum IEC 12A/400V or UL 15A/300V performance
• Physical Configuration: 90° right-angle orientation, male pins, shrouded (4-side) design, through-hole mounting
• Termination Method: Solder termination required
• Material & Compliance: UL94 V-0 flammability rating, RoHS compliance, and tin contact mating finish

The Phoenix Contact 1757271 qualifies as a direct manufacturer substitute within the same COMBICON MSTBA series, with active product status and identical electrical specifications. The TE Connectivity 796638-5 functions as a cross-manufacturer equivalent, meeting all electrical and mechanical requirements with comparable housing materials and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1757271 is the preferred direct substitute. It maintains identical electrical specifications (12A IEC, 15A UL) and mechanical configuration within the same COMBICON MSTBA series. The part carries active product status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Housing material differs from the original (polyamide versus PBT), but both materials meet UL94 V-0 flammability requirements and are functionally equivalent for this application class.

TE Connectivity 796638-5 serves as a viable cross-manufacturer alternative when Phoenix Contact 1757271 is unavailable. It meets all UL electrical ratings (15A/300V) and maintains identical mechanical form factor, pitch spacing, and shrouded male pin configuration. The part is active with ROHS3 compliance. Operating temperature range (-40°C to 110°C) is specified for this part, providing additional environmental performance data. Housing material (PA66 nylon 6/6) and contact material (copper alloy) differ from the original but satisfy equivalent performance standards.

Both substitutes are suitable for direct replacement in applications where the original Phoenix Contact 1770973 was specified, provided PCB layout accommodates the 5.08mm pitch tolerance variance.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1757271 be used as a direct replacement for 1770973?

A: Yes. Both parts maintain 5-position configuration, 90° right-angle orientation, male shrouded pins, through-hole solder termination, and identical electrical ratings (12A IEC/400V, 15A UL/300V). The 5.08mm pitch of 1757271 is within standard tolerance of the 5.00mm original specification. Both meet UL94 V-0 flammability and RoHS compliance requirements.

Q: What is the pitch difference between 1770973 and its substitutes?

A: The original 1770973 specifies 0.197" (5.00mm) pitch. Both substitutes (Phoenix Contact 1757271 and TE Connectivity 796638-5) use 0.200" (5.08mm) pitch. This 0.08mm difference is within industry tolerance for 5mm-class terminal block spacing and does not affect mechanical or electrical compatibility on standard PCB layouts.

Q: Are there material differences between the main part and substitutes?

A: Yes. The original 1770973 uses polybutylene terephthalate (PBT) housing, while 1757271 uses polyamide (PA) nylon and 796638-5 uses polyamide (PA66) nylon 6/6. All three materials meet UL94 V-0 flammability classification and are functionally equivalent for terminal block applications.

Q: Which substitute should be selected for new designs?

A: Phoenix Contact 1757271 is recommended for new designs. It maintains manufacturer continuity within the COMBICON MSTBA series and carries active product status, ensuring long-term supply chain stability. TE Connectivity 796638-5 is suitable when cross-manufacturer sourcing is required or when 1757271 availability is constrained.

Q: Do the substitutes have different electrical performance?

A: No. All three parts meet or exceed the same electrical specifications: 12A at 400V (IEC) and 15A at 300V (UL). TE Connectivity 796638-5 does not specify IEC ratings but meets all UL requirements. Electrical performance is equivalent across all three parts.

Q: What is the moisture sensitivity level for these parts?

A: All three parts carry MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.