Phoenix Contact 1897791 Terminal Block - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1897791 is a 12-position wire-to-board terminal block with 0.200" (5.08mm) pitch, designed for horizontal mounting with press-fit PCB attachment. 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, design updates, and procurement continuity. The primary substitute maintains core electrical and mechanical compatibility while offering enhanced current capacity and active product status.

Key Parameters

Parameter	Value
Positions	12
Pitch	0.200" (5.08mm)
Mating Orientation	Horizontal with Board
Current Rating	10 A
Voltage Rating	300 V
Wire Gauge	14-30 AWG
Mounting Type	Press Fit
Wire Termination	Screw - Rising Cage Clamp
Housing Material	Polyamide (PA), Nylon
Screw Thread	M2
RoHS Status	RoHS Compliant

Substitute Part Grouping Explanation

The Phoenix Contact 1715828 qualifies as a functional substitute for the 1897791 based on the following alignment of critical parameters:

Position count and pitch: Both parts maintain 12 positions at 0.200" (5.08mm) spacing, ensuring mechanical compatibility with existing connector interfaces
Voltage rating: Both rated at 300 V, maintaining electrical safety margins
Wire gauge compatibility: Both accept 14-30 AWG conductors
Termination method: Both use screw-based rising cage clamp technology
Housing material: Both constructed from polyamide (PA) nylon
Horizontal orientation: Both designed for horizontal board mounting

The primary difference is the mounting method: the 1897791 uses press-fit attachment while the 1715828 employs through-hole mounting. This distinction requires PCB design verification but does not prevent functional substitution in applications where board layout permits through-hole installation.

Parameter Comparison

Parameter	1897791 (Main Part)	1715828 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Series	COMBICON EMKDS	COMBICON MKDS
Product Status	Obsolete	Active
Positions	12	12
Pitch	0.200" (5.08mm)	0.200" (5.08mm)
Mating Orientation	Horizontal with Board	Horizontal with Board
Current Rating	10 A	15 A
Voltage Rating	300 V	300 V
Wire Gauge	14-30 AWG	14-30 AWG
Mounting Type	Press Fit	Through Hole
Wire Termination	Screw - Rising Cage Clamp	Screw - Rising Cage Clamp
Housing Material	Polyamide (PA), Nylon	Polyamide (PA), Nylon
Screw Thread	M2	M3
Torque - Screw	0.22-0.25 Nm (1.9-2.2 Lb-In)	0.5-0.6 Nm (4.4-5.3 Lb-In)
RoHS Status	RoHS Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99

Engineering Selection Recommendations

The 1715828 is the designated substitute for the obsolete 1897791. Selection of this alternative is supported by:

Active product status: The 1715828 maintains current manufacturing and supply chain support, eliminating long-lead-time risks associated with obsolete components
Enhanced current capacity: The 15 A rating of the 1715828 exceeds the 10 A specification of the 1897791, providing additional thermal margin in applications operating at or near the original current limit
Regulatory compliance: Both parts meet RoHS requirements; the 1715828 carries ROHS3 certification, reflecting current compliance standards
Mechanical compatibility: Identical pitch, position count, and wire gauge acceptance ensure direct functional replacement in connector interface applications
Mounting method consideration: Substitution requires PCB design modification from press-fit to through-hole mounting. This change is a design-level decision, not an electrical limitation

Frequently Asked Questions (FAQ)

Q: Can the 1715828 directly replace the 1897791 without PCB modification?

A: No. The 1897791 uses press-fit mounting while the 1715828 requires through-hole PCB pads. PCB layout revision is necessary to accommodate the different mounting method.

Q: Are the electrical ratings compatible between these parts?

A: Yes. Both parts are rated for 300 V and accept 14-30 AWG wire. The 1715828 provides higher current capacity (15 A vs. 10 A), which is compatible with the original 10 A application.

Q: What is the impact of the different screw threads (M2 vs. M3)?

A: The M3 thread on the 1715828 requires different torque application (0.5-0.6 Nm vs. 0.22-0.25 Nm). Technicians must use appropriate tooling and follow the updated torque specification to ensure proper termination.

Q: Is the 1715828 available in the same packaging as the 1897791?

A: The 1897791 packaging information is not specified in the available data. The 1715828 is supplied in bulk packaging. Packaging requirements should be confirmed with the supplier.

Q: Are there any compliance differences between these parts?

A: Both parts are RoHS compliant. The 1715828 carries ROHS3 certification, representing current regulatory alignment. Both are classified as EAR99 for export control purposes.

Q: What is the series relationship between COMBICON EMKDS and COMBICON MKDS?

A: These are distinct Phoenix Contact terminal block series. The MKDS series (1715828) represents the active product line, while the EMKDS series (1897791) is obsolete. The MKDS series maintains functional compatibility with EMKDS specifications.

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