Phoenix Contact 1702277 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1702277 is a 4-position terminal block header with male pins and green housing, designed for front panel wire connections with PCB pin straight rear connections. This component is classified as obsolete, making identification of active equivalent parts essential for ongoing procurement and system maintenance. The COMBICON DFK-PCV series part is no longer in active production, necessitating evaluation of compatible alternatives that maintain electrical and mechanical compatibility with existing installations.

Key Parameters

Parameter	Value
Positions Per Level	4
Pitch	0.400" (10.16mm)
Width	2.992" (76.00mm)
Panel Thickness Range	0.039 ~ 0.118" (1.0 ~ 3.0mm)
Front Panel Wire Connection	Header, Male Pins
Panel Mount Type	2 Piece, Snap Lock - Front Flange
Color	Green
Current - UL	66 A
Number of Levels	1
Features	Threaded Mating Lock, Shield Connection Front Side

Substitute Part Grouping Explanation

Substitution eligibility for terminal block headers is determined by matching the following critical parameters:

Electrical compatibility: Voltage and current ratings must meet or exceed the original specification
Mechanical compatibility: Pitch, position count, width, and panel mount type must be identical
Connection type: Front panel wire connection type (header, male pins) must match
Physical form factor: Panel thickness range and overall dimensions must accommodate existing panel cutouts
Feature set: Presence of threaded mating lock and shield connection capability

The Phoenix Contact 1701553 qualifies as a direct substitute based on identical mechanical dimensions, pitch, position count, panel mount configuration, and feature set. The primary difference lies in the rear panel connection type (right angle versus straight) and enhanced electrical ratings.

Parameter Comparison

Parameter	1702277 (Original)	1701553 (Substitute)
Manufacturer	Phoenix Contact	Phoenix Contact
Series	COMBICON DFK-PCV	COMBICON DFK-PC
Product Status	Obsolete	Active
Positions Per Level	4	4
Pitch	0.400" (10.16mm)	0.400" (10.16mm)
Width	2.992" (76.00mm)	2.992" (76.00mm)
Panel Thickness Range	0.039 ~ 0.118" (1.0 ~ 3.0mm)	0.039 ~ 0.118" (1.0 ~ 3.0mm)
Front Panel Wire Connection	Header, Male Pins	Header, Male Pins
Rear Panel Connection	PCB Pins - Straight	PCB Pins - Right Angle
Panel Mount Type	2 Piece, Snap Lock - Front Flange	2 Piece, Snap Lock - Front Flange
Color	Green	Green
Voltage - UL	300 V	600 V
Current - UL	66 A	66 A
Features	Threaded Mating Lock, Shield Connection Front Side	Threaded Mating Lock, Shield Connection Front Side
Number of Levels	1	1
RoHS Status	RoHS Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The Phoenix Contact 1701553 is an active production equivalent for the obsolete 1702277. Both components share identical mechanical specifications, electrical current ratings, and functional features. The 1701553 provides enhanced voltage rating (600 V versus 300 V) and improved regulatory compliance status (ROHS3 versus RoHS Compliant), making it suitable for new designs and replacement applications.

The primary design consideration is the rear panel connection orientation: the 1701553 features right-angle PCB pins compared to the straight pins of the original 1702277. This difference requires verification of available PCB routing space and connector clearance in the target application. If straight pin orientation is mandatory for existing PCB layouts, alternative solutions must be evaluated.

The 1701553 is available in active inventory (918 pieces) and maintains full compatibility with the panel mount interface, mating lock mechanism, and shield connection features of the original design.

Frequently Asked Questions (FAQ)

Q: Can the 1701553 directly replace the 1702277 in existing installations?

A: Mechanical and electrical compatibility is confirmed for panel-mount applications. The critical consideration is PCB pin orientation: the 1701553 uses right-angle pins versus the straight pins of the 1702277. Verify that the target PCB layout accommodates right-angle pin routing before implementation.

Q: What are the key differences between these two parts?

A: The 1701553 differs in three aspects: rear panel connection type (right-angle versus straight), voltage rating (600 V versus 300 V), and product status (active versus obsolete). All other mechanical and electrical parameters are identical.

Q: Are there any compliance or regulatory differences?

A: The 1701553 carries ROHS3 compliance and REACH Unaffected status, compared to the 1702277's RoHS Compliant designation. Both maintain MSL 1 (Unlimited) moisture sensitivity rating and EAR99 export classification.

Q: What is the pitch and position configuration?

A: Both components feature 4 positions per level with 0.400" (10.16mm) pitch spacing, resulting in a total width of 2.992" (76.00mm). Panel thickness accommodation is 0.039 ~ 0.118" (1.0 ~ 3.0mm) for both parts.

Q: Are the panel mount mechanisms identical?

A: Yes. Both use 2-piece snap lock front flange mounting with threaded mating lock and shield connection on the front side.

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