Phoenix Contact 1702921 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1702921 is a 5-position terminal block header with female sockets designed for front panel wire connections 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 COMBICON DFK-IPC series provides standardized terminal block solutions for industrial control and signal distribution applications.

Substiute Parts

1702921

Phoenix ContactIn Stock: 10261702921 Datasheet

Current PartRFQ

1702523

Phoenix ContactIn Stock: 9061702523 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Phoenix Contact 1702921 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Positions Per Level: 5
• Pitch: 0.400" (10.16mm)
• Voltage - UL: 600 V
• Current - UL: 5 A
• Front Panel Wire Connection: Header, Female Sockets
• Rear Panel Wire Connection: PCB Pins - Right Angle
• Panel Thickness Range: 0.039 ~ 0.118" (1.0 ~ 3.0mm)
• Color: Green
• Series: COMBICON DFK-IPC

The substitute part 1702523 maintains all mandatory electrical and mechanical parameters, ensuring functional compatibility within the same application context. Variations in width and panel mount configuration do not affect electrical performance or core connectivity specifications.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1702523 serves as the direct substitute for the obsolete 1702921 terminal block header. Both components maintain identical electrical ratings (600 V UL, 5 A UL), mechanical pitch (0.400"), and connector interface specifications. The 1702523 is currently in active production status with confirmed inventory availability, making it the appropriate selection for replacement applications.

The width differential (3.617" versus 2.950") and panel mount configuration variation do not affect electrical performance or signal integrity. Panel thickness compatibility remains consistent across both parts, supporting installation in standard enclosure configurations.

Both components maintain RoHS compliance and equivalent moisture sensitivity ratings, ensuring environmental and regulatory consistency in system design.

Frequently Asked Questions (FAQ)

Q: Can the 1702523 directly replace the 1702921 in existing installations?

A: Yes. Both parts maintain identical electrical specifications (600 V, 5 A), connector pitch (0.400"), position count (5), and wire connection types. The width and panel mount configuration differences do not affect electrical compatibility or functional performance.

Q: What is the significance of the width difference between these parts?

A: The width variation (3.617" versus 2.950") reflects physical envelope differences but does not impact electrical characteristics or connector interface specifications. Panel mounting compatibility is maintained within the specified panel thickness range (0.039 ~ 0.118").

Q: Are both parts RoHS compliant?

A: Yes. Both the 1702921 and 1702523 are RoHS compliant with identical moisture sensitivity levels (MSL 1 - Unlimited).

Q: Why is the 1702921 listed as obsolete?

A: The 1702921 has been discontinued by Phoenix Contact. The 1702523 represents the active production equivalent within the COMBICON DFK-IPC series.

Q: Do these parts share the same pitch and position specifications?

A: Yes. Both components feature 5 positions per level with a 0.400" (10.16mm) pitch, ensuring mechanical and electrical interchangeability in applications designed for this configuration.