Phoenix Contact 1859564 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1859564 is a 7-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch vertical through-hole mounting. This component is part of the COMBICON EMSTBVA series and carries an obsolete product status. Due to its obsolescence, equivalent substitute parts from the active COMBICON product lines are available to maintain design continuity and ensure supply chain reliability.

Substiute Parts

1859564

Phoenix ContactIn Stock: 10681859564 Datasheet

Current PartRFQ

1755781

Phoenix ContactIn Stock: 24601755781 Datasheet

SimilarRFQ

1955905

Phoenix ContactIn Stock: 7011955905 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1859564 is determined by the following critical parameters:

• Number of Positions and Pitch: All substitute parts maintain 7 positions at 0.200" (5.08mm) pitch, ensuring mechanical and electrical compatibility with mating connectors and PCB layouts.
• Type and Orientation: All candidates are male pin headers with 4-side shrouding in vertical orientation, preserving form factor and mounting compatibility.
• Mounting Type: All substitutes use through-hole mounting, maintaining PCB assembly compatibility.
• Electrical Ratings: Substitute parts must meet or exceed the IEC and UL voltage and current specifications of the original part.
• Compliance: All substitutes maintain ROHS3 compliance and UL94 V-0 flammability rating.

The primary differentiators among substitutes are termination style (press-fit versus solder), housing material composition, and active product status.

Parameter Comparison

Engineering Selection Recommendations

Phoenix Contact 1755781 is the primary substitute for the 1859564. Both parts maintain identical electrical specifications under IEC standards (12A at 320V minimum), identical contact tail length (3.90mm), and identical insulation height. The 1755781 operates at higher IEC voltage (630V) and uses polyamide housing instead of PBT, providing enhanced thermal stability. The transition from press-fit to solder termination requires PCB design modification but is a standard engineering practice. The 1755781 carries active product status, ensuring long-term availability and supply chain continuity.

Phoenix Contact 1955905 is a secondary substitute suitable for applications where the reduced UL current rating (10A versus 12A) is acceptable. The 1955905 features liquid crystal polymer housing, offering superior dimensional stability and chemical resistance. The shorter contact tail length (2.60mm) requires verification against PCB through-hole depth specifications. The 1955905 maintains active product status and meets all compliance requirements.

Selection between 1755781 and 1955905 depends on termination process capability (solder versus press-fit infrastructure), PCB design constraints (contact tail length), and application current requirements (12A versus 10A UL rating).

Frequently Asked Questions (FAQ)

Q: Can the 1859564 be directly replaced with the 1755781 without PCB modification?

A: Direct mechanical replacement is possible due to identical pitch, position count, and contact tail length. However, the termination style change from press-fit to solder requires PCB design modification. Press-fit pads cannot accommodate solder termination without redesign.

Q: What is the impact of the housing material difference between 1859564 (PBT) and 1755781 (Polyamide)?

A: Polyamide housing in the 1755781 provides superior thermal stability and chemical resistance compared to PBT. Both materials meet UL94 V-0 flammability requirements. Material selection does not affect electrical performance or mating compatibility.

Q: Is the 1955905 suitable for applications requiring 12A current?

A: The 1955905 is rated for 10A under UL standards, which is below the original 1859564 specification of 12A UL. Applications requiring 12A current should use the 1755781. The 1955905 is suitable for applications with maximum 10A current requirements.

Q: Does the shorter contact tail length of the 1955905 (2.60mm versus 3.90mm) affect compatibility?

A: Contact tail length affects PCB through-hole depth requirements. The 1955905 requires verification that PCB through-hole depth accommodates the 2.60mm tail. If the PCB is designed for 3.90mm tails, the 1955905 may not provide sufficient solder joint depth. The 1755781 maintains the original 3.90mm tail length and is recommended for existing PCB designs.

Q: Are all substitute parts ROHS3 compliant?

A: The 1755781 is ROHS3 compliant. The 1955905 is RoHS compliant but does not specify ROHS3 certification. For applications requiring ROHS3 compliance, the 1755781 is the recommended substitute.

Q: What is the inventory status of substitute parts?

A: The 1755781 has 2395 pieces in stock. The 1955905 has 630 pieces in stock. Both parts are available as new original components from Phoenix Contact.