Phoenix Contact 1961261 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1961261 is an 8-position terminal block header with male pins, featuring a shrouded 4-side design and 2.50mm pitch for vertical through-hole mounting. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement planning. The part operates at 4A (IEC) and 160V (IEC), with solder termination and UL94 V-0 flammability rating.

Substiute Parts

1961261

Phoenix ContactIn Stock: 8001961261 Datasheet

Current PartRFQ

1844895

Phoenix ContactIn Stock: 8591844895 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1961261 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Number of Positions: 8
• Positions Per Level: 4
• Number of Levels: 2
• Header Orientation: Vertical
• Termination Style: Solder
• Mounting Type: Through Hole
• Type: Header, Male Pins, Shrouded (4 Side)

Allowable Variation Parameters:

• Pitch: 0.098" (2.50mm) to 0.100" (2.54mm) — minor pitch variation acceptable within standard connector spacing tolerances
• Current Rating: 4A minimum (higher ratings acceptable)
• Voltage Rating: 160V minimum (equal or higher acceptable)
• Contact Mating Finish: Tin or Gold (both acceptable)
• Housing Material: Polyamide (PA) or Liquid Crystal Polymer (LCP) (both acceptable)
• Contact Tail Length: Variation acceptable if PCB footprint accommodates
• Insulation Height: Variation acceptable if board clearance permits

The substitute part 1844895 meets all mandatory criteria with allowable variations in pitch (2.54mm vs. 2.50mm), current rating (6A vs. 4A), contact finish (Gold vs. Tin), housing material (LCP vs. PA), and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1844895 is a suitable substitute for the obsolete 1961261 based on the following engineering factors:

Product Status: The 1844895 is classified as Active, providing long-term availability and supply chain stability compared to the obsolete 1961261.

Compliance & Certifications: Both parts maintain UL94 V-0 flammability rating. The 1844895 carries ROHS3 Compliant status and REACH Unaffected designation, meeting current regulatory requirements. The 1961261 is RoHS Compliant (earlier standard).

Electrical Performance: The 1844895 exceeds the electrical specifications of the 1961261, with 6A current capacity versus 4A, and maintains 160V IEC rating. UL ratings for the 1844895 are 6A at 150V, providing adequate margin for applications designed for the original part.

Physical Compatibility: The pitch variation from 2.50mm to 2.54mm represents a 0.04mm difference per position. PCB footprint redesign is required. The contact tail length reduction (4.60mm to 2.00mm) and insulation height reduction (17.50mm to 7.10mm) necessitate board layout verification.

Material & Contact Finish: The LCP housing material of the 1844895 provides superior thermal and chemical resistance compared to polyamide. Gold contact finish offers enhanced corrosion resistance and contact reliability compared to tin.

Frequently Asked Questions (FAQ)

Q: Can the 1844895 be used as a direct drop-in replacement for the 1961261?

A: No. While functionally equivalent, the 1844895 requires PCB footprint modification due to pitch difference (2.50mm vs. 2.54mm), reduced contact tail length (2.00mm vs. 4.60mm), and reduced insulation height (7.10mm vs. 17.50mm). Board layout redesign is necessary.

Q: What is the significance of the pitch difference between 2.50mm and 2.54mm?

A: The 0.04mm per-position cumulative difference results in approximately 0.32mm total spacing variation across the 8-position header. This requires PCB pad repositioning and cannot be accommodated by existing footprints designed for 2.50mm pitch.

Q: Are the electrical ratings of the 1844895 sufficient for applications designed for the 1961261?

A: Yes. The 1844895 provides 6A capacity versus the 1961261's 4A, and maintains 160V IEC rating. Applications operating within the original 4A specification will operate safely with the 1844895.

Q: What is the difference between RoHS and ROHS3 compliance?

A: RoHS Compliant (1961261) refers to the original Restriction of Hazardous Substances directive. ROHS3 Compliant (1844895) refers to the recast directive with expanded substance restrictions. ROHS3 is the current regulatory standard and provides broader environmental compliance.

Q: Does the gold contact finish of the 1844895 affect compatibility with existing mating connectors?

A: No. Gold contact finish is compatible with standard connector systems. Gold provides superior contact reliability and corrosion resistance compared to tin, making it suitable for the same mating applications.

Q: What packaging format is the 1844895 supplied in?

A: The 1844895 is supplied in Cut Tape (CT) packaging, suitable for automated assembly processes.