Phoenix Contact 1796458 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1796458 is a 4-position terminal block header with male pins, shrouded design, and 90° right-angle orientation. It features 0.200" (5.08mm) pitch spacing, solder termination, and through-hole mounting. This component is part of the COMBICON MSTBA series and is currently classified as obsolete. Due to its obsolete status, identifying equivalent substitute parts is essential for ongoing system maintenance, repairs, and new designs requiring compatible connectivity solutions.

Substiute Parts

1796458

Phoenix ContactIn Stock: 7971796458 Datasheet

Current PartRFQ

1795682

Phoenix ContactIn Stock: 10191795682 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1796458 is determined by strict alignment of the following critical parameters:

• Electrical Specifications: Current rating (12A IEC), voltage rating (250V IEC), and contact mating finish (tin)
• Mechanical Configuration: 4-position count, 0.200" (5.08mm) pitch, 90° right-angle orientation, male pins with 4-side shrouding
• Termination and Mounting: Solder termination and through-hole mounting type
• Physical Dimensions: Contact tail length (0.138" / 4.60mm) and insulation height (0.339" / 8.61mm)
• Material and Compliance: Polyamide (PA) nylon housing, UL94 V-0 flammability rating, and RoHS compliance

The Phoenix Contact 1795682 meets all these critical parameters and qualifies as a direct substitute. Differences in series designation (MSTBA vs. MSTB), product status (obsolete vs. active), and feature variations (locking ramp vs. mating and mounting flange) do not affect functional interchangeability in applications requiring the specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1795682 is the qualified substitute for the obsolete 1796458 based on complete alignment of all critical electrical and mechanical parameters. The 1795682 maintains active product status, ensuring ongoing availability and supply chain continuity. Both components carry identical IEC electrical ratings (12A, 250V), identical physical dimensions, and equivalent material compliance (UL94 V-0, RoHS). The 1795682 provides enhanced ROHS3 compliance status compared to the base RoHS compliance of the original part. Series designation differences (MSTB vs. MSTBA) and feature variations (mating and mounting flange vs. locking ramp) do not impact functional compatibility in applications requiring the specified 4-position, 5.08mm pitch, 90° right-angle terminal block header configuration.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1795682 be used as a direct replacement for the 1796458 in existing designs?

A: Yes. Both components share identical electrical ratings (12A, 250V IEC), mechanical configuration (4-position, 5.08mm pitch, 90° right angle), termination method (solder), and mounting type (through hole). Physical dimensions, including contact tail length and insulation height, are identical. The components are functionally interchangeable.

Q: What is the difference between the MSTBA and MSTB series designations?

A: Series designation reflects internal Phoenix Contact product line organization. The MSTBA (1796458) is obsolete, while the MSTB (1795682) is active. Both series employ identical electrical and mechanical specifications for this 4-position, 5.08mm pitch configuration.

Q: Are there packaging differences between these parts?

A: The 1796458 is listed with no specified packaging, while the 1795682 is supplied in bulk packaging. This distinction affects procurement and handling but does not alter component functionality or electrical performance.

Q: Does the 1795682 meet the same compliance standards as the 1796458?

A: Both components meet UL94 V-0 flammability requirements and carry RoHS compliance. The 1795682 provides ROHS3 compliance, representing an enhanced compliance status. Both are classified as EAR99 for export control purposes and share identical HTSUS tariff codes.

Q: What feature differences exist between the locking ramp (1796458) and mating and mounting flange (1795682)?

A: The 1796458 includes a locking ramp feature, while the 1795682 includes a mating and mounting flange. These are design variations within the same functional category. Selection between them depends on specific application requirements for mechanical retention or alignment, not on electrical or core mechanical compatibility.

Q: Is the 1795682 suitable for applications requiring 12A at 250V?

A: Yes. The 1795682 carries identical IEC electrical ratings: 12A current and 250V voltage. It is suitable for all applications within these electrical parameters.