Phoenix Contact 1705663 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1705663 is a 3-position wire-to-board terminal block with 0.150" (3.81mm) pitch, designed for horizontal mounting with press-fit PCB connection. This component belongs to the COMBICON EMKDS series and is classified as obsolete. Due to its obsolete status, identifying functionally equivalent active alternatives is essential for ongoing design support and procurement continuity.

Substiute Parts

1705663

Phoenix ContactIn Stock: 10611705663 Datasheet

Current PartRFQ

1705553

Phoenix ContactIn Stock: 14631705553 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1705663 is determined by strict equivalence across the following critical parameters:

• Electrical Specifications: Current rating (10 A), voltage rating (300 V), and wire gauge compatibility (14-30 AWG) must remain identical
• Mechanical Interface: Pitch (0.150" / 3.81mm), mating orientation (horizontal with board), and wire termination method (screw - rising cage clamp) must match exactly
• Position Count: 3-position configuration is mandatory
• Housing & Materials: Polyamide (PA) nylon construction with M2 screw thread and identical torque specification (0.22-0.25 Nm)
• Compliance: RoHS compliance and MSL rating must be maintained or exceeded

The primary distinction between the main part and its substitute lies in the mounting method: the 1705663 uses press-fit PCB connection, while the substitute employs through-hole mounting. Both configurations maintain electrical and mechanical compatibility within the COMBICON terminal block family.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1705553 is the designated substitute for the obsolete 1705663 based on the following criteria:

Product Status Alignment: The 1705553 maintains active product status within the Phoenix Contact COMBICON terminal block portfolio, ensuring long-term availability and supply chain continuity.

Compliance Enhancement: The 1705553 carries ROHS3 compliance certification, which exceeds the RoHS compliance of the original part, meeting current regulatory requirements.

Electrical & Mechanical Equivalence: All critical electrical parameters (10 A current, 300 V voltage, 14-30 AWG wire gauge) and mechanical specifications (3-position, 3.81mm pitch, M2 screw, identical torque) are preserved.

Mounting Consideration: The transition from press-fit to through-hole mounting requires PCB redesign. Through-hole mounting provides enhanced mechanical stability and is the current standard for this terminal block category within the COMBICON MKDSD series.

Frequently Asked Questions (FAQ)

Q: Can the 1705553 be used as a direct drop-in replacement for the 1705663?

A: Electrical and mechanical compatibility is maintained. However, the mounting method differs: the 1705663 uses press-fit connection while the 1705553 requires through-hole PCB mounting. PCB layout modification is necessary.

Q: Are the electrical ratings identical between these parts?

A: Yes. Both parts maintain 10 A current rating, 300 V voltage rating, and support 14-30 AWG wire gauge. Screw torque specification (0.22-0.25 Nm) is identical.

Q: What is the difference between the COMBICON EMKDS and COMBICON MKDSD series?

A: Both series are Phoenix Contact COMBICON terminal block families with equivalent electrical and mechanical specifications. The primary distinction is the mounting technology: EMKDS uses press-fit, while MKDSD uses through-hole mounting.

Q: Does the 1705553 meet current compliance standards?

A: Yes. The 1705553 is ROHS3 compliant and carries MSL 1 (Unlimited) rating, meeting current regulatory and environmental standards.

Q: What packaging is available for the 1705553?

A: The 1705553 is supplied in bulk packaging, with 1446 pieces available in new original stock.