Phoenix Contact 1705757 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1705757 is a 12-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 substitute parts is essential for ongoing system maintenance, repair, and new design implementations where this connector type is required.

Substiute Parts

1705757

Phoenix ContactIn Stock: 7921705757 Datasheet

Current PartRFQ

1705647

Phoenix ContactIn Stock: 8641705647 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1705757 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 Configuration: 12 positions, 0.150" (3.81mm) pitch, horizontal mating orientation, and screw-based wire termination (rising cage clamp) are non-negotiable
• Termination Method: Screw-based rising cage clamp termination must be preserved
• Screw Specifications: M2 thread with 0.22-0.25 Nm torque range must be maintained
• Housing Material: Polyamide (PA) nylon construction must be consistent
• Compliance: RoHS compliance status and MSL rating must be equivalent or superior

The Phoenix Contact 1705647 qualifies as a functional substitute based on matching all electrical and mechanical parameters. The primary difference is the mounting method: the 1705757 uses press-fit PCB mounting, while the 1705647 uses through-hole mounting. This distinction affects PCB design integration but does not alter the electrical or wire termination characteristics.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1705647 is the qualified substitute for the obsolete 1705757. Both components maintain identical electrical performance (10 A at 300 V), mechanical configuration (12 positions at 3.81mm pitch), and wire termination methodology (M2 screw with rising cage clamp).

The 1705647 offers the advantage of active product status, ensuring continued availability and supply chain reliability. Its ROHS3 compliance exceeds the RoHS compliance of the original part, meeting current regulatory requirements. Both components share unlimited MSL rating, indicating no moisture sensitivity constraints during storage or handling.

The substitution requires PCB design modification: the 1705757 press-fit mounting must be replaced with through-hole mounting for the 1705647. This change affects PCB layout and hole specifications but does not impact electrical performance or wire connection integrity.

Frequently Asked Questions (FAQ)

Q: Can the 1705647 be used as a direct replacement for the 1705757 without PCB modification?

A: No. The 1705757 uses press-fit mounting while the 1705647 uses through-hole mounting. PCB hole design and mounting pad configuration must be modified accordingly. Electrical and wire termination compatibility is maintained.

Q: Are the electrical ratings identical between these two parts?

A: Yes. Both components are rated for 10 A at 300 V with identical wire gauge acceptance (14-30 AWG) and screw termination specifications (M2 thread, 0.22-0.25 Nm torque).

Q: What is the significance of the product status difference?

A: The 1705757 is obsolete, meaning Phoenix Contact no longer manufactures or supports this part. The 1705647 is active, ensuring ongoing availability, technical support, and supply chain continuity for new designs and maintenance applications.

Q: Do both parts meet current RoHS requirements?

A: The 1705757 is RoHS Compliant. The 1705647 is ROHS3 Compliant, which represents the current regulatory standard. Both are suitable for RoHS-regulated applications, with the 1705647 offering compliance with the latest directive revision.

Q: Are there any differences in wire termination or screw specifications?

A: No. Both components use identical screw-based rising cage clamp termination with M2 threads and 0.22-0.25 Nm torque specifications. Wire connection methodology and torque requirements are unchanged.

Q: What packaging differences exist between these parts?

A: The 1705757 packaging is not specified in available documentation. The 1705647 is supplied in bulk packaging. Confirm packaging requirements with your procurement department for order specifications.