Phoenix Contact 1899731 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1899731 is a 14-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch and 90° right-angle through-hole mounting. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part operates at 12A (IEC) / 15A (UL) and 400V (IEC) / 300V (UL), with press-fit termination and UL94 V-0 flammability rating.

Substiute Parts

1899731

Phoenix ContactIn Stock: 7411899731 Datasheet

Current PartRFQ

1776621

Phoenix ContactIn Stock: 9441776621 Datasheet

SimilarRFQ

1827537

Phoenix ContactIn Stock: 7851827537 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1899731 is determined by the following critical parameters:

• Position Count & Pitch: All substitutes must maintain 14 positions at 0.200" (5.08mm) pitch to ensure mechanical and electrical compatibility with mating connectors and PCB layouts.
• Header Type & Orientation: Shrouded (4-side) male pin headers with 90° right-angle through-hole mounting are required to match the original form factor and installation method.
• Electrical Ratings: Minimum current capacity of 12A (IEC) and voltage rating of 400V (IEC) must be maintained. UL ratings of 15A and 300V represent the baseline for North American applications.
• Flammability & Material Compliance: UL94 V-0 rating and RoHS compliance are mandatory for safety and regulatory adherence.
• Termination Method Variance: While the original part uses press-fit termination, solder termination alternatives are acceptable provided all other parameters align, as this represents a manufacturing process difference rather than a functional limitation.

Two substitute parts meet these criteria: Phoenix Contact 1776621 and Phoenix Contact 1827537.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1776621 is the primary substitute for the 1899731. This part maintains identical electrical ratings (12A IEC, 400V IEC, 15A UL, 300V UL), matching pitch, position count, and shrouded header configuration. The transition from press-fit to solder termination represents a manufacturing process change without functional impact. The part is active in production status with ROHS3 compliance, ensuring long-term availability and regulatory alignment. Contact tail length reduction (0.138" vs. 0.165") requires PCB layout verification but does not affect electrical performance.

Phoenix Contact 1827537 serves as a secondary substitute when 1776621 is unavailable. This part meets all critical substitution criteria with equivalent position count, pitch, and header type. The IEC voltage rating is reduced to 320V (versus 400V in the original), which remains suitable for applications operating at or below 320V. The UL current rating increases to 16A, providing additional margin. The housing material differs (LCP versus PBT), and contact tail length is significantly shorter (0.102"), requiring comprehensive PCB layout and mechanical clearance verification. Product status is active with RoHS compliance.

Both substitutes are certified to UL94 V-0 flammability standards and maintain MSL 1 moisture sensitivity ratings, ensuring compatibility with standard handling and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the 1776621 be used as a direct replacement for the 1899731 in existing designs?

A: The 1776621 is mechanically and electrically compatible with the 1899731 for applications operating within the specified electrical parameters. The primary design consideration is the contact tail length reduction from 0.165" to 0.138", which may affect PCB hole depth and solder joint geometry. PCB layout verification is necessary to confirm adequate solder fillet formation and mechanical support.

Q: What is the difference between press-fit and solder termination in these headers?

A: Press-fit termination (1899731) uses mechanical insertion into plated through-holes, while solder termination (1776621, 1827537) requires thermal bonding to PCB pads. Both methods provide equivalent electrical connectivity when properly executed. Solder termination is more common in current production and offers improved long-term reliability in vibration-prone environments.

Q: Is the 1827537 suitable for applications requiring 400V IEC operation?

A: The 1827537 is rated for 320V IEC maximum. Applications requiring 400V IEC operation must use the 1776621 or source the original 1899731 from inventory. The 1827537 is suitable for applications operating at 320V IEC or lower.

Q: How do the housing material differences affect performance?

A: The 1899731 and 1776621 use Polybutylene Terephthalate (PBT), while the 1827537 uses Liquid Crystal Polymer (LCP). Both materials meet UL94 V-0 flammability requirements and provide equivalent electrical insulation properties. LCP offers superior dimensional stability and lower moisture absorption, which may benefit high-precision applications or humid environments.

Q: Are all three parts RoHS compliant?

A: Yes. The 1899731 and 1827537 are RoHS Compliant. The 1776621 is ROHS3 Compliant, representing an updated regulatory certification. All three parts meet current RoHS requirements for new designs.

Q: What inventory status should influence part selection?

A: The 1899731 is obsolete with 666 units in stock. The 1776621 (880 units) and 1827537 (773 units) are active production parts with established supply chains. For new designs or long-term production requirements, selection of 1776621 or 1827537 is recommended to ensure sustained availability.