Phoenix Contact 1859522 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1859522 is a 3-position terminal block header with male pins, shrouded design, and 0.200" (5.08mm) pitch for vertical through-hole mounting. This component is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and procurement continuity. The part operates at 12A (IEC) / 12A (UL) and 320V (IEC) / 300V (UL), with press-fit termination and UL94 V-0 flammability rating.

Substiute Parts

1859522

Phoenix ContactIn Stock: 10551859522 Datasheet

Current PartRFQ

1755749

Phoenix ContactIn Stock: 22431755749 Datasheet

SimilarRFQ

1955866

Phoenix ContactIn Stock: 11251955866 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Phoenix Contact 1859522 are identified based on the following critical parameters that determine functional equivalence:

Core Matching Criteria:

• Number of positions: 3
• Pitch: 0.200" (5.08mm)
• Header orientation: Vertical
• Type: Male pins, shrouded (4 side)
• Mounting type: Through hole
• Current rating (IEC): 12A minimum
• Voltage rating (IEC): 320V minimum
• Material flammability: UL94 V-0
• RoHS compliance status

Identified Substitutes:

1. Phoenix Contact 1755749 (COMBICON MSTBVA series) - Active product status with solder termination
2. Phoenix Contact 1955866 (COMBICON CCVA series) - Active product status with solder termination

Both substitutes maintain the core electrical and mechanical specifications required for direct functional replacement while offering active product availability.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: Phoenix Contact 1755749

The 1755749 is the preferred substitute for the obsolete 1859522. Both parts maintain identical mechanical dimensions (pitch, orientation, insulation height, contact tail length) and core electrical ratings (12A IEC, 300V UL). The 1755749 offers superior voltage rating (630V IEC vs. 320V IEC) and active product status with established supply chain availability. The transition from press-fit to solder termination requires PCB design modification but provides equivalent electrical performance. RoHS3 compliance exceeds the original RoHS requirement.

Secondary Substitute: Phoenix Contact 1955866

The 1955866 serves as an alternative substitute with active product status and higher voltage rating (400V IEC). This part maintains the same mechanical footprint and flammability rating. The UL current rating is reduced to 10A (versus 12A on the main part), which may limit applicability in designs requiring full 12A capacity. The shorter contact tail length (0.102" vs. 0.154") requires verification for PCB hole depth compatibility. Housing material differs (LCP vs. PBT), and color is black rather than green.

Compliance Considerations:

All parts maintain UL94 V-0 flammability certification and MSL 1 moisture sensitivity rating. The substitutes provide ROHS3 compliance, which is compatible with RoHS Compliant requirements. ECCN and HTSUS classifications remain consistent across all three parts.

Frequently Asked Questions (FAQ)

Q: Can the 1755749 directly replace the 1859522 without PCB modification?

A: No. The primary difference is termination style: the 1859522 uses press-fit termination while the 1755749 uses solder termination. PCB design must be modified to accommodate solder pads instead of press-fit holes. Mechanical dimensions and electrical ratings are compatible.

Q: What is the voltage rating difference between the substitutes?

A: The 1755749 provides 630V IEC rating, the 1955866 provides 400V IEC rating, and the original 1859522 provides 320V IEC rating. All exceed 300V UL requirement. Selection depends on circuit voltage requirements.

Q: Does the 1955866 contact tail length affect compatibility?

A: The 1955866 has a shorter contact tail (0.102" vs. 0.154"). PCB hole depth must be verified to ensure adequate solder joint formation. This may require design review before implementation.

Q: Are all three parts RoHS compliant?

A: Yes. The 1859522 is RoHS Compliant. Both substitutes are ROHS3 Compliant, which satisfies RoHS requirements and provides enhanced compliance status.

Q: What is the impact of housing material differences?

A: The 1859522 uses PBT, the 1755749 uses PA/Nylon, and the 1955866 uses LCP. All maintain UL94 V-0 flammability rating. Material selection affects thermal and mechanical properties but does not impact electrical performance for this application.

Q: Can the 1955866 be used in applications requiring 12A current?

A: The 1955866 is rated for 10A UL current, which is below the 12A requirement of the original part. Use is limited to applications with maximum 10A current draw.