Phoenix Contact 1727870 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1727870 is a 9-position terminal block header from the COMBICON DFK-PC series, designed for front panel wire connections with male pins and rear panel PCB connections via right-angle pins. This component is classified as obsolete, making identification of functionally equivalent active alternatives essential for ongoing production and maintenance applications.

The primary reason for identifying substitute parts is the obsolete status of the 1727870. Active equivalent models ensure continued availability, supply chain reliability, and access to current manufacturing batches with full traceability and compliance documentation.

Substiute Parts

1727870

Phoenix ContactIn Stock: 11941727870 Datasheet

Current PartRFQ

1727650

Phoenix ContactIn Stock: 10651727650 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1727870 is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Voltage rating (300 V UL) and current rating (41 A UL) must match exactly
• Mechanical Configuration: 9 positions per level, 0.300" pitch, and right-angle PCB pin orientation are non-negotiable
• Physical Dimensions: Width of 3.704" and panel thickness accommodation of 0.039 ~ 0.118" must be maintained
• Connection Type: Front panel male pin header with rear panel right-angle PCB pins
• Compliance: RoHS compliance and MSL rating must be equivalent or superior
• Series Compatibility: COMBICON DFK-PC series designation ensures design continuity

The substitute part 1727650 meets all these criteria while offering the advantage of active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1727650 is the direct functional equivalent for the obsolete 1727870 model. Both components share identical electrical ratings, mechanical dimensions, and connection configurations within the COMBICON DFK-PC series. The 1727650 offers the strategic advantage of active product status, ensuring current manufacturing support, full traceability, and compliance documentation.

The minor mechanical difference—the addition of a front flange to the snap lock mechanism on the 1727650—represents an enhancement that maintains full backward compatibility while providing improved panel mounting stability. Both components carry equivalent RoHS compliance and MSL ratings, confirming suitability for identical application environments.

For new designs and ongoing production requiring 9-position terminal block headers with 0.300" pitch, 300 V / 41 A ratings, and right-angle PCB mounting, the 1727650 is the recommended selection. For legacy systems currently using the 1727870, direct substitution with the 1727650 is supported without circuit redesign or mechanical rework.

Frequently Asked Questions (FAQ)

Q: Can the 1727650 be used as a direct replacement for the 1727870 in existing assemblies?

A: Yes. The 1727650 maintains identical electrical specifications (300 V / 41 A), mechanical pitch (0.300"), position count (9), and PCB connection orientation. The front flange enhancement on the snap lock mechanism is compatible with standard panel mounting practices and does not require design modification.

Q: What is the significance of the "Front Flange" addition on the 1727650?

A: The front flange provides additional mechanical support and alignment during panel installation. This is a design enhancement that improves mounting reliability without affecting electrical performance or dimensional compatibility with the 1727870.

Q: Are there any compliance or certification differences between the two parts?

A: No. Both the 1727870 and 1727650 carry identical RoHS compliance status and MSL rating of 1 (Unlimited). Both are rated for 300 V UL and 41 A UL operation.

Q: Why is the 1727870 listed as obsolete?

A: The 1727870 has been superseded by the 1727650 within Phoenix Contact's product portfolio. The 1727650 represents the current active equivalent with ongoing manufacturing support and supply availability.

Q: What packaging differences exist between these parts?

A: The 1727870 is supplied in standard packaging, while the 1727650 is available in bulk packaging. This distinction affects order quantities and logistics but does not impact component functionality or performance.

Q: Are the pitch and position specifications identical?

A: Yes. Both components feature 9 positions per level with a 0.300" (7.62mm) pitch, resulting in identical 3.704" (94.08mm) overall width. Panel thickness accommodation is identical at 0.039 ~ 0.118" (1.0 ~ 3.0mm).