Phoenix Contact 1937538 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1937538 is a 6-position terminal block header with male pins, shrouded design, and 4.6mm pitch for 90° right-angle through-hole mounting. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates at 8A per position (IEC) and 250V (IEC), with UL ratings of 8A at 300V. Substitutes must maintain electrical performance, mechanical compatibility, and mounting characteristics while meeting current RoHS and compliance requirements.

Substiute Parts

1937538

Phoenix ContactIn Stock: 11281937538 Datasheet

Current PartRFQ

1788589

Phoenix ContactIn Stock: 10991788589 Datasheet

SimilarRFQ

1776134-6

TE Connectivity AMP ConnectorsIn Stock: 9651776134-6 Datasheet

SimilarRFQ

691322110006

Würth ElektronikIn Stock: 2309691322110006 Datasheet

SimilarRFQ

OQ0612510000G

Amphenol AnytekIn Stock: 1003OQ0612510000G Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1937538 is determined by strict adherence to the following parameters:

Critical Matching Parameters:

• Number of Positions: 6
• Pitch: 0.138" (4.60mm)
• Header Orientation: 90°, Right Angle
• Type: Header, Male Pins, Shrouded (4 Side)
• Termination Style: Solder
• Mounting Type: Through Hole
• Material Flammability Rating: UL94 V-0
• Contact Mating Finish: Tin

Electrical Compatibility Parameters:

• Current Rating (UL): Minimum 8A
• Voltage Rating (UL): Minimum 300V

All four substitute parts meet these critical parameters. Variations in housing material, contact tail length, insulation height, and operating temperature ranges do not preclude substitution when electrical and mechanical specifications align with the original part's functional requirements.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: Phoenix Contact 1788589

Phoenix Contact 1788589 is the direct equivalent from the original manufacturer. It maintains identical electrical specifications (8A at 300V UL), mechanical configuration, and pitch. The part is currently active in production with improved MSL rating (1 vs. 3) and ROHS3 compliance. Housing material differs (Liquid Crystal Polymer vs. Polyamide), but this does not affect functional compatibility. Contact tail length variation (0.102" vs. 0.134") requires PCB layout verification for through-hole mounting clearance.

Secondary Recommendations: TE Connectivity 1776134-6, Würth Elektronik 691322110006, Amphenol Anytek OQ0612510000G

All three alternatives meet electrical and mechanical requirements with active product status and ROHS3 compliance. TE Connectivity 1776134-6 provides higher current capacity (11A) and defined operating temperature range (-40°C to 110°C). Würth Elektronik 691322110006 offers the highest inventory availability (2201 pcs) and extended operating temperature range (-40°C to 105°C). Amphenol Anytek OQ0612510000G provides the widest operating temperature range (-40°C to 115°C) and highest current rating (10A). All three use Polyamide or equivalent housing materials compatible with the original design.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1788589 be used as a direct drop-in replacement for 1937538?

A: Phoenix Contact 1788589 is electrically and mechanically compatible. The primary consideration is contact tail length: 1788589 measures 0.102" versus 1937538's 0.134". Verify PCB hole depth and solder pad layout to confirm through-hole mounting compatibility before implementation.

Q: What is the significance of the MSL rating difference between 1937538 (MSL 3) and the substitute parts (MSL 1)?

A: MSL 3 requires storage at controlled humidity for 168 hours maximum; MSL 1 has unlimited shelf life under standard conditions. Substitute parts with MSL 1 offer superior storage flexibility and reduced handling constraints during manufacturing.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. Phoenix Contact 1937538 is RoHS Compliant; all four substitute parts are ROHS3 Compliant, meeting current regulatory requirements.

Q: Do the substitute parts maintain the same current rating as the original?

A: Phoenix Contact 1788589 maintains the identical 8A UL rating. TE Connectivity 1776134-6, Würth Elektronik 691322110006, and Amphenol Anytek OQ0612510000G all exceed the original specification with 11A, 10A, and 10A ratings respectively. Higher current capacity does not compromise compatibility.

Q: What is the impact of housing material variation among substitute parts?

A: The original 1937538 uses Polyamide (PA) with glass fill. Phoenix Contact 1788589 uses Liquid Crystal Polymer (LCP); TE Connectivity uses Polyamide (PA); Würth Elektronik uses Polyamide (PA66); Amphenol Anytek uses Thermoplastic Resin. All materials meet UL94 V-0 flammability requirements. Material selection does not affect electrical or mechanical compatibility for this application.

Q: Which substitute part offers the best long-term availability?

A: Würth Elektronik 691322110006 currently has the highest inventory (2201 pcs). All four substitute parts are active products with established supply chains, providing superior long-term availability compared to the obsolete 1937538.

Q: Are operating temperature ranges critical for substitution?

A: The original 1937538 does not specify an operating temperature range. All substitute parts define operating ranges (-40°C to 110°C, -40°C to 105°C, or -40°C to 115°C). Select based on your application's thermal requirements; all specified ranges accommodate standard industrial environments.