Phoenix Contact 1911253 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1911253 is an 11-position terminal block header with male pins, shrouded on four sides, designed for 0.138" (4.60mm) pitch vertical through-hole mounting. This component belongs to the COMBICON EMC series and is classified as obsolete. The part features press-fit termination, tin-plated mating contacts, and UL94 V-0 rated polybutylene terephthalate housing.

Due to its obsolete product status, identifying equivalent substitute parts is necessary for ongoing system maintenance, repair, and new design implementations where this connector type is required.

Substiute Parts

1911253

Phoenix ContactIn Stock: 12531911253 Datasheet

Current PartRFQ

1843318

Phoenix ContactIn Stock: 11681843318 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1911253 is determined by the following critical parameters:

• Position Count & Pitch: 11 positions at 0.138" (4.60mm) spacing
• Connector Type: Male pin header with four-side shrouding
• Mounting Configuration: Vertical through-hole orientation
• Electrical Ratings: Minimum 8A current capacity and 160V IEC voltage rating
• Housing Material & Flammability: PBT with UL94 V-0 compliance
• Contact Finish: Tin plating for mating surfaces

The substitute part 1843318 meets all these critical parameters. The primary difference lies in the termination style (solder versus press-fit) and the higher IEC voltage rating (250V versus 160V), which represents an enhancement rather than a limitation for substitution purposes.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1843318 is the active production equivalent for the obsolete 1911253. Both components share identical mechanical and electrical specifications across all critical parameters, including position count, pitch, shrouding configuration, voltage and current ratings, and housing material compliance.

The 1843318 offers the advantage of active product status with current manufacturing support and availability. The transition from press-fit to solder termination requires PCB design adjustment but does not compromise electrical or mechanical compatibility. The enhanced IEC voltage rating (250V versus 160V) provides additional safety margin in applications operating at or near the original 160V specification.

For new designs or system replacements, the 1843318 is the recommended selection. For existing assemblies using the 1911253, the 1843318 serves as a direct functional substitute provided that PCB footprint modifications accommodate the solder termination method.

Frequently Asked Questions (FAQ)

Q: Can the 1843318 directly replace the 1911253 without PCB modifications?

A: The 1843318 shares identical mechanical dimensions and electrical ratings with the 1911253. However, the termination method differs: the 1911253 uses press-fit termination while the 1843318 uses solder termination. PCB footprint adjustment is required to accommodate the solder tail configuration.

Q: What is the significance of the different IEC voltage ratings (160V versus 250V)?

A: Both parts meet the same UL voltage rating of 300V. The higher IEC rating of the 1843318 (250V versus 160V) indicates enhanced performance margin and does not restrict substitution in applications designed for the original 160V specification.

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

A: Both parts carry identical compliance certifications: UL94 V-0 flammability rating, EAR99 export classification, and HTSUS code 8536.69.4040. The 1843318 includes additional RoHS3 and REACH compliance documentation.

Q: What is the impact of the contact tail length difference (0.134" versus 0.138")?

A: The contact tail length difference of 0.004" (0.10mm) reflects the design variation between press-fit and solder termination methods. This difference is accommodated within standard PCB through-hole tolerances and does not affect electrical performance.

Q: Is the 1843318 available in the same packaging as the 1911253?

A: The 1911253 packaging information is not specified in the original documentation. The 1843318 is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.