Phoenix Contact 1940907 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1940907 is a 3-position terminal block header with male pins, shrouded on 4 sides, designed for 0.200" (5.08mm) pitch vertical through-hole mounting. This component belongs to the COMBICON MSTBV series and is rated for 12A at 400V (IEC) and 12A at 300V (UL). The product is currently obsolete, making identification of compatible substitute parts essential for ongoing system maintenance and new design implementations.

Substiute Parts

1940907

Phoenix ContactIn Stock: 8371940907 Datasheet

Current PartRFQ

1955646

Phoenix ContactIn Stock: 11631955646 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1940907 is determined by the following critical parameters:

• Number of Positions and Pitch: Must be 3 positions at 0.200" (5.08mm) spacing
• Header Type and Orientation: Must be male pins, shrouded (4 side), vertical orientation
• Mounting Method: Must be through-hole solder termination
• Electrical Ratings: Must meet or exceed 12A current and 400V (IEC) / 300V (UL) voltage specifications
• Compliance: Must maintain RoHS compliance and UL94 V-0 flammability rating

The substitute part Phoenix Contact 1955646 satisfies these core substitution criteria. Both components share identical positional configuration, pitch, header type, orientation, and mounting method. Both maintain RoHS compliance and UL94 V-0 flammability ratings. The 1955646 is an active product from the COMBICON CCV series, providing a direct functional replacement for the obsolete 1940907.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1955646 is the primary substitute for the obsolete 1940907. Both components are RoHS compliant and carry UL94 V-0 flammability certification, meeting regulatory requirements for equivalent applications.

Key considerations for selection:

Electrical Compatibility: The 1955646 maintains the 12A IEC current rating and 400V IEC voltage rating of the original part. The UL current rating is 10A (versus 12A on the 1940907), which may require verification in applications operating at maximum UL specifications.

Physical Compatibility: Both components feature identical 3-position, 5.08mm pitch configuration with vertical through-hole mounting. The insulation height difference (0.480" versus 0.472") is within typical manufacturing tolerances and does not affect PCB layout compatibility.

Material Difference: The 1955646 uses Liquid Crystal Polymer (LCP) housing versus polyamide (PA) nylon on the 1940907. Both materials meet UL94 V-0 requirements. LCP provides enhanced thermal and chemical resistance characteristics.

Product Status: The 1955646 is an active product with confirmed inventory availability, ensuring long-term supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the 1955646 directly replace the 1940907 in existing designs?

A: Yes, for applications operating within the 1955646 electrical specifications. The 3-position, 5.08mm pitch vertical through-hole configuration is identical. Verify that your application does not require the full 12A UL rating, as the 1955646 is rated for 10A under UL specifications.

Q: What is the significance of the housing material change from polyamide to LCP?

A: Both materials meet UL94 V-0 flammability requirements. Liquid Crystal Polymer (LCP) offers superior thermal stability and chemical resistance compared to polyamide. This change does not affect electrical performance or mechanical compatibility.

Q: Are there dimensional differences that affect PCB layout?

A: The insulation height differs by 0.008" (0.20mm), which is negligible for standard PCB design. Both components use identical pitch and mounting footprints. No layout modifications are required.

Q: Is the 1955646 RoHS compliant?

A: Yes, the 1955646 is RoHS compliant and carries UL94 V-0 certification, matching the compliance profile of the original 1940907.

Q: What is the current rating difference between the two parts?

A: Under IEC specifications, both parts are rated for 12A. Under UL specifications, the 1940907 is rated for 12A while the 1955646 is rated for 10A. Applications requiring 12A UL rating should be evaluated for compatibility with the lower UL rating of the substitute.