Phoenix Contact 1796571 Terminal Block Header – Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1796571 is a 4-position terminal block header with male pins, shrouded on all four sides, designed for 0.200" (5.08mm) pitch vertical through-hole mounting. This component belongs to the COMBICON MSTBVA series and is rated for 12A at 250V IEC, with solder termination and UL94 V-0 flammability compliance.

The 1796571 is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance requirements for systems utilizing this connector type.

Substiute Parts

1796571

Phoenix ContactIn Stock: 8171796571 Datasheet

Current PartRFQ

1796348

Phoenix ContactIn Stock: 10171796348 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1796571 is determined by strict alignment of the following critical parameters:

• Electrical Ratings: Current (12A IEC) and voltage (250V IEC) must match or exceed the original specification
• Physical Configuration: 4-position count, 0.200" (5.08mm) pitch, vertical orientation, and through-hole mounting must be identical
• Connector Type: Male pins with 4-side shrouding are mandatory for mechanical and electrical compatibility
• Termination Method: Solder termination is required for PCB integration
• Material and Safety Compliance: Polyamide housing with UL94 V-0 flammability rating ensures regulatory and performance equivalence
• Contact Specifications: Tin mating finish and 0.154" (3.90mm) contact tail length must be preserved for mating interface compatibility

The Phoenix Contact 1796348 meets all these criteria and is classified as an active product, making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1796348 is the direct substitute for the obsolete 1796571. Both components share identical electrical ratings (12A, 250V), physical dimensions, connector configuration, and safety certifications (UL94 V-0). The 1796348 is currently in active production status with higher inventory availability (1004 units in stock versus 716 for the 1796571).

The 1796348 carries ROHS3 compliance, which supersedes the RoHS compliance of the 1796571, ensuring alignment with current regulatory requirements. Both parts are classified under ECCN EAR99 and share the same HTSUS code (8536.69.4040), confirming their equivalence for trade and compliance purposes.

For new designs or production transitions, the 1796348 is the recommended selection due to its active product status and enhanced compliance posture.

Frequently Asked Questions (FAQ)

Q: Can the 1796348 be used as a direct replacement for the 1796571 in existing designs?

A: Yes. The 1796348 is electrically and mechanically equivalent to the 1796571. All critical parameters—position count, pitch, voltage/current ratings, shrouding configuration, and contact specifications—are identical. The components are pin-compatible and footprint-compatible for through-hole PCB assembly.

Q: What is the difference between the COMBICON MSTBVA and COMBICON MSTBV series designations?

A: The series designation reflects internal Phoenix Contact product line organization. The functional and electrical specifications of both series are equivalent for this 4-position, 5.08mm pitch configuration. The difference does not affect substitution eligibility.

Q: Are there packaging differences between the 1796571 and 1796348?

A: The 1796571 is supplied in standard packaging, while the 1796348 is supplied in bulk packaging. This distinction affects logistics and inventory management but does not alter component performance or compatibility.

Q: Does the ROHS3 compliance of the 1796348 affect compatibility with designs originally specified for RoHS-compliant parts?

A: No. ROHS3 compliance is a superset of RoHS compliance. The 1796348 meets all RoHS requirements and exceeds them with additional regulatory alignment. It is fully compatible with designs specified for RoHS-compliant components.

Q: What are the key parameters that must match for terminal block header substitution?

A: Position count, pitch spacing, header orientation, shrouding type, mounting method, electrical ratings (current and voltage), contact finish, housing material, and flammability rating must all match. Deviations in any of these parameters disqualify a part as a direct substitute.