Phoenix Contact 1859658 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1859658 is a 16-position terminal block header with male pins, shrouded on four sides, featuring 0.200" (5.08mm) pitch 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 12A IEC current rating and 320V IEC voltage rating with press-fit termination technology.

Substiute Parts

1859658

Phoenix ContactIn Stock: 11831859658 Datasheet

Current PartRFQ

1755875

Phoenix ContactIn Stock: 14861755875 Datasheet

SimilarRFQ

1827919

Phoenix ContactIn Stock: 11311827919 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1859658 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Positions: 16
• Pitch: 0.200" (5.08mm)
• Type: Header, Male Pins, Shrouded (4 Side)
• Header Orientation: Vertical
• Mounting Type: Through Hole
• Insulation Height: 0.472" (12.00mm)

Electrical Compatibility Parameters:

• Current Rating: 12A (IEC and UL)
• Voltage Rating: Minimum 300V (UL) / 320V (IEC)

Acceptable Variations:

• Termination Style: Press-Fit or Solder acceptable
• Housing Material: PBT, Polyamide (PA/Nylon), or Liquid Crystal Polymer (LCP)
• Contact Tail Length: 0.102" to 0.154" (2.60mm to 3.90mm)
• RoHS Compliance: RoHS Compliant or ROHS3 Compliant

The two identified substitute parts (1755875 and 1827919) meet all mandatory matching parameters and electrical compatibility requirements while offering active product status and improved material options.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Preferred): Phoenix Contact 1755875 is the primary substitute for 1859658. Both parts maintain identical mechanical dimensions (16 positions, 5.08mm pitch, 0.472" insulation height, 0.154" contact tail length) and electrical ratings (12A IEC, 300V UL). The 1755875 offers superior voltage rating (630V IEC versus 320V IEC) and active product status. The transition from press-fit to solder termination requires PCB design modification but provides enhanced mechanical reliability. Housing material change from PBT to Polyamide (PA/Nylon) maintains UL94 V-0 flammability compliance and RoHS3 certification.

For Alternative Selection: Phoenix Contact 1827919 serves as a secondary substitute when specific design constraints favor Liquid Crystal Polymer (LCP) housing material or shorter contact tail length (0.102" versus 0.154"). This part maintains all critical mechanical parameters and 12A current rating. The 250V IEC rating is lower than the main part but remains suitable for applications not requiring the full 320V IEC specification. Solder termination applies to this part as well.

Compliance Considerations: All three parts carry UL94 V-0 flammability rating and RoHS compliance certifications. The 1755875 provides ROHS3 compliance, representing the most current regulatory standard. Selection should account for application voltage requirements and PCB assembly process capabilities (press-fit versus solder).

Frequently Asked Questions (FAQ)

Q: Can 1755875 directly replace 1859658 on existing PCBs designed for press-fit termination? A: No. The 1755875 uses solder termination, requiring PCB pad redesign from press-fit holes to solder pads. Mechanical dimensions remain compatible, but assembly process changes are mandatory.

Q: What is the voltage difference between 1859658 (320V IEC) and 1755875 (630V IEC)? A: The 1755875 provides higher voltage rating margin. Both parts meet the 300V UL requirement. Selection depends on application voltage specifications. The 1755875 offers greater safety margin for high-voltage applications.

Q: Are the housing material differences between PBT, Polyamide, and LCP significant for electrical performance? A: All three materials maintain UL94 V-0 flammability rating and support the same electrical specifications. Material selection affects mechanical properties, temperature stability, and chemical resistance. Polyamide (PA/Nylon) and LCP offer improved dimensional stability compared to PBT in certain environmental conditions.

Q: Why does 1827919 have a shorter contact tail length (0.102" versus 0.154")? A: Contact tail length variation is within acceptable substitution parameters. The shorter tail (2.60mm) still provides adequate PCB penetration for solder joint formation. This difference does not affect electrical performance or mechanical compatibility with mating connectors.

Q: Is the product status change from Obsolete to Active significant? A: Yes. Active status (1755875 and 1827919) ensures long-term availability, ongoing manufacturing support, and compliance with current regulatory standards. Obsolete parts face potential supply discontinuation and lack of design improvements.

Q: Can both substitute parts be used interchangeably in the same application? A: No. While both are valid substitutes for 1859658, they differ in housing material, voltage rating, and contact tail length. Selection must be based on specific application requirements. Interchangeability is limited to applications where these parameter variations are acceptable.