Phoenix Contact 1937376 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1937376 is an 8-position terminal block header with male pins, shrouded design, and 90° right-angle orientation. This component features 4.60mm pitch spacing, through-hole solder termination, and is rated for 8A per position at 320V (IEC) or 300V (UL). The part is classified as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Substiute Parts

1937376

Phoenix ContactIn Stock: 11101937376 Datasheet

Current PartRFQ

1789287

Phoenix ContactIn Stock: 11491789287 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1937376 is determined by the following critical parameters:

• Electrical Compatibility: Matching current rating (8A minimum), voltage rating (320V IEC or 300V UL minimum), and contact mating finish (Tin)
• Mechanical Compatibility: Identical number of positions (8), pitch spacing (4.60mm), header orientation (90° right angle), and through-hole solder termination
• Physical Compatibility: Shrouded (4 side) design, male pin configuration, and black color
• Regulatory Compliance: RoHS compliance and UL94 V-0 flammability rating

The Phoenix Contact 1937376 has one identified substitute within the COMBICON MC series that meets these criteria: part number 1789287. This substitute maintains functional and mechanical equivalence while offering active product status and improved availability.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1789287 is the active equivalent for the obsolete 1937376 terminal block header. Both components maintain identical electrical and mechanical specifications for the primary application parameters: 8-position configuration, 4.60mm pitch, 90° right-angle orientation, 8A current rating, and through-hole solder termination.

Key differences exist in secondary specifications:

• Voltage Rating (IEC): The 1789287 operates at 250V IEC compared to 320V for the 1937376. Applications requiring 320V IEC operation must evaluate whether 250V IEC rating is acceptable for the specific circuit design.
• Housing Material: The 1789287 uses Liquid Crystal Polymer (LCP) versus glass-filled polyamide in the 1937376. Both materials meet UL94 V-0 flammability requirements.
• Physical Dimensions: Minor variations exist in contact tail length (0.102" vs 0.134") and insulation height (0.272" vs 0.285"), which may affect PCB layout compatibility.
• Moisture Sensitivity: The 1789287 has MSL 1 (unlimited) versus MSL 3 (168 hours) for the 1937376, providing superior moisture handling characteristics.

The 1789287 is recommended for new designs and ongoing procurement due to active product status and improved moisture sensitivity rating. Existing designs using the 1937376 may transition to the 1789287 provided the 250V IEC rating and dimensional variations are compatible with the application requirements.

Frequently Asked Questions (FAQ)

Q: Can the Phoenix Contact 1789287 directly replace the 1937376 in existing designs?

A: The 1789287 provides functional and mechanical equivalence for most applications. However, verify that the 250V IEC voltage rating (versus 320V for the 1937376) meets your circuit requirements. Additionally, confirm that the reduced contact tail length (0.102" vs 0.134") and insulation height (0.272" vs 0.285") are compatible with your PCB layout and mating connector specifications.

Q: What is the significance of the different housing materials?

A: The 1937376 uses glass-filled polyamide while the 1789287 uses Liquid Crystal Polymer (LCP). Both materials satisfy UL94 V-0 flammability requirements. LCP offers superior dimensional stability and moisture resistance, as reflected in the 1789287's MSL 1 rating compared to MSL 3 for the 1937376.

Q: Why is the 1937376 classified as obsolete?

A: The 1937376 has been discontinued by Phoenix Contact. The 1789287 represents the active product line continuation within the COMBICON MC series, offering equivalent functionality with improved specifications and ongoing manufacturer support.

Q: Are there any electrical performance differences between these parts?

A: Both components maintain 8A current rating and identical contact mating finish (Tin). The primary electrical difference is the IEC voltage rating: 320V for the 1937376 versus 250V for the 1789287. UL voltage ratings are identical at 300V. Confirm your application voltage requirements before substitution.

Q: What packaging options are available?

A: The 1937376 is available in standard packaging (not specified). The 1789287 is supplied in Bulk packaging. Verify packaging requirements for your procurement and assembly processes.