Phoenix Contact 1702840 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1702840 is a 5-position terminal block header with female sockets designed for front panel wire connection and PCB-mounted rear connections. 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 600V UL voltage rating with 5A current capacity and features threaded mating lock and shield connection on the front side.

Substiute Parts

1702840

Phoenix ContactIn Stock: 11041702840 Datasheet

Current PartRFQ

1702523

Phoenix ContactIn Stock: 9061702523 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Phoenix Contact 1702840 is determined by the following critical parameters:

• Electrical Compatibility: Voltage rating (600V UL) and current capacity (5A) must be maintained
• Mechanical Interface: 5 positions per level with 0.400" (10.16mm) pitch spacing
• Connection Type: Female socket header on front panel with right-angle PCB pins on rear
• Panel Mount Configuration: 2-piece snap lock mounting system
• Environmental Compliance: RoHS compliance and MSL rating (1 - Unlimited)
• Series Compatibility: COMBICON DFK-IPC series designation

The substitute part Phoenix Contact 1702523 maintains all critical electrical and mechanical parameters while differing in physical width and panel mount flange design. Both parts share identical pitch, position count, voltage/current ratings, and connection types.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1702523 serves as a direct functional substitute for the obsolete 1702840 model. Both components maintain identical electrical specifications (600V, 5A), mechanical pitch (0.400"), position count (5), and connection interface configurations. The primary design difference is the physical width: the 1702840 measures 3.617" while the 1702523 measures 2.950", and the 1702840 includes a front flange on the snap lock mounting system.

The 1702523 is classified as active product status, ensuring ongoing availability and supply chain continuity. Both parts carry RoHS compliance certification and unlimited moisture sensitivity level rating, meeting current environmental and reliability standards.

Selection between these parts depends on panel space constraints and mounting flange requirements. Where the front flange of the 1702840 is not a functional requirement, the 1702523 provides a compact alternative with identical electrical and core mechanical compatibility.

Frequently Asked Questions (FAQ)

Q: Can Phoenix Contact 1702523 directly replace 1702840 in existing designs?

A: The 1702523 maintains all critical electrical and mechanical parameters: 5 positions, 0.400" pitch, 600V/5A ratings, and identical connection types. The primary difference is physical width (2.950" vs 3.617") and the absence of a front flange on the snap lock mounting. Compatibility depends on available panel space and whether the front flange serves a functional purpose in the original design.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by: position count (5), pitch spacing (0.400"), voltage rating (600V UL), current capacity (5A), connection type (female socket header with right-angle PCB pins), panel thickness tolerance (0.039-0.118"), and panel mount configuration (2-piece snap lock). All these parameters are identical between the two parts.

Q: Why is the 1702840 listed as obsolete?

A: The 1702840 is classified as obsolete by Phoenix Contact. The 1702523 represents the active product line continuation within the COMBICON DFK-IPC series, offering equivalent functionality with improved availability.

Q: Are there compliance differences between these parts?

A: Both parts are RoHS compliant and carry MSL rating 1 (Unlimited). No compliance differences exist between the 1702840 and 1702523.

Q: What is the significance of the width difference?

A: The 1702840 is 3.617" wide while the 1702523 is 2.950" wide. This 0.667" difference affects panel mounting space requirements. The narrower 1702523 is suitable for space-constrained applications where the front flange functionality is not required.