Phoenix Contact 1894985 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1894985 is an 18-position terminal block header with male pins, featuring a shrouded 4-side design and 2.50mm (0.098") pitch for vertical through-hole mounting. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The part operates at 4A (IEC) / 4A (UL) with voltage ratings of 320V (IEC) / 125V (UL), utilizing solder termination and polyamide housing with UL94 V-0 flammability rating.

Substiute Parts

1894985

Phoenix ContactIn Stock: 11591894985 Datasheet

Current PartRFQ

1844947

Phoenix ContactIn Stock: 10221844947 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of terminal block headers is determined by compatibility across mechanical and electrical parameters. The primary criteria for evaluating Phoenix Contact 1894985 substitutes include:

Mechanical Compatibility:

• Identical position count (18 positions)
• Identical level configuration (2 levels, 9 positions per level)
• Matching header orientation (vertical)
• Compatible mounting type (through hole, solder termination)
• Physical dimensions permitting PCB footprint alignment

Electrical Compatibility:

• Current rating equal to or exceeding the original specification
• Voltage rating equal to or exceeding the original specification
• Matching contact configuration (male pins, shrouded design)

Manufacturing & Compliance:

• Same manufacturer (Phoenix Contact) for series consistency
• RoHS compliance status
• Moisture sensitivity level compatibility

The substitute part Phoenix Contact 1844947 shares the same position count, level configuration, header orientation, and termination method. However, it operates at a different pitch (2.54mm vs. 2.50mm), which represents a mechanical deviation requiring PCB footprint verification before implementation.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The Phoenix Contact 1894985 is classified as obsolete, while the substitute part 1844947 maintains active product status. Active status ensures continued availability, technical support, and manufacturing consistency for new procurements.

Compliance & Certification: Both parts meet UL94 V-0 flammability requirements and maintain MSL 1 (Unlimited) moisture sensitivity ratings. The 1844947 carries ROHS3 compliance, representing current regulatory alignment compared to the RoHS Compliant designation of the 1894985.

Electrical Performance: The 1844947 provides higher current capacity (6A vs. 4A) across both IEC and UL standards. Voltage ratings differ: the 1894985 operates at 320V (IEC) / 125V (UL), while the 1844947 operates at 160V (IEC) / 150V (UL). Selection depends on circuit voltage requirements.

Mechanical Considerations: The pitch difference (2.50mm vs. 2.54mm) represents a 0.04mm deviation per position. For an 18-position header, cumulative spacing variation requires PCB footprint verification to ensure mounting hole alignment and mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1844947 directly replace 1894985 on existing PCBs?

A: Direct replacement requires PCB footprint verification. The pitch difference of 0.04mm (2.50mm vs. 2.54mm) creates cumulative spacing variation across 18 positions. Mounting hole alignment must be confirmed before implementation.

Q: What are the key electrical differences between these parts?

A: The 1894985 operates at 4A / 320V (IEC) and 4A / 125V (UL). The 1844947 operates at 6A / 160V (IEC) and 6A / 150V (UL). Applications requiring the original 320V IEC rating cannot use the 1844947 substitute.

Q: Why does the 1844947 have a gold contact finish instead of tin?

A: Contact mating finish is specified in the provided parameters. Gold finish on the 1844947 is a manufacturing characteristic of that part number and does not affect substitution eligibility based on the allowed parameters.

Q: Is the 1844947 suitable for new designs?

A: The 1844947 carries active product status and current ROHS3 compliance, making it suitable for new designs. However, circuit voltage and current requirements must align with its electrical specifications.

Q: What is the significance of the series difference (MICRO-COMBICON MCDV vs. COMBICON DMCV)?

A: Series designation indicates product line classification within Phoenix Contact's terminal block portfolio. Both series share compatible mechanical and electrical characteristics for the specified position count and configuration.

Q: Are there any packaging differences between these parts?

A: The 1894985 packaging is listed as unspecified, while the 1844947 is supplied in bulk packaging. Packaging format may affect procurement quantities and handling procedures.