Phoenix Contact 1703218 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1703218 is a 2-position terminal block header with female sockets in the COMBICON DFK-IPCV series. This component features a snap-lock front flange panel mount design with threaded mating lock and shield connection on the front side. The part is classified as obsolete, making identification of suitable substitutes necessary for ongoing system maintenance and new design implementations. The 1703056 serves as an active equivalent within the same product family.

Substiute Parts

1703218

Phoenix ContactIn Stock: 9741703218 Datasheet

Current PartRFQ

1703056

Phoenix ContactIn Stock: 8081703056 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

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

• Connector Type & Interface: Both parts must feature identical front panel wire connection (header, female sockets) and rear panel wire connection (PCB pins - straight)
• Position Count & Pitch: Identical positions per level (2) and pitch spacing (0.400" / 10.16mm) ensure mechanical and electrical compatibility
• Panel Mount Configuration: Matching snap-lock mounting mechanism and flange design
• Series Compatibility: Both parts belong to the COMBICON DFK-IPCV series
• Electrical Ratings: Voltage and current ratings must meet or exceed application requirements
• Color & Compliance: Matching color designation and RoHS compliance status

The Phoenix Contact 1703056 qualifies as a substitute based on these parameters. Both parts share identical connector interfaces, position counts, pitch spacing, mounting mechanisms, series designation, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The Phoenix Contact 1703056 is the active equivalent for the obsolete 1703218 within the COMBICON DFK-IPCV series. Both components maintain RoHS compliance and MSL Level 1 certification, ensuring compatibility with current manufacturing and environmental standards.

The primary design difference is physical width: the 1703218 measures 2.417" (61.40mm) while the 1703056 measures 1.750" (44.45mm). This dimensional variance must be evaluated against available panel space in the target application.

Electrical rating differences exist: the 1703218 is rated for 600 V at 5 A, while the 1703056 is rated for 300 V at 66 A. Application voltage and current requirements must be assessed to determine which rating profile is appropriate. The 1703056 supports higher current capacity, making it suitable for higher-amperage applications within its 300 V voltage limit.

Both components feature identical connector interfaces, position counts, pitch spacing, and mounting mechanisms, confirming functional interchangeability within the constraints of the electrical and dimensional parameters noted above.

Frequently Asked Questions (FAQ)

Q: Can the 1703056 directly replace the 1703218 in all applications?

A: Direct replacement is possible only when application requirements align with the 1703056 electrical ratings (300 V, 66 A) and physical dimensions (1.750" width). If the original application requires 600 V operation or the 2.417" width dimension, the 1703056 is not suitable.

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

A: The 1703218 has a width of 2.417" (61.40mm) while the 1703056 measures 1.750" (44.45mm). This 0.667" difference affects panel mounting space requirements. Verify available panel cutout dimensions before substitution.

Q: Are the electrical ratings interchangeable?

A: No. The 1703218 operates at 600 V / 5 A, while the 1703056 operates at 300 V / 66 A. Select the part whose ratings match or exceed your application's voltage and current requirements. Do not use the 1703056 in circuits requiring 600 V operation.

Q: Do both parts use the same mounting mechanism?

A: Both use 2-piece snap-lock panel mounting. The 1703218 specifies "Front Flange" while the 1703056 does not. Verify mounting flange requirements for your specific panel configuration.

Q: Are there any compliance or environmental differences?

A: Both parts are RoHS compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. No compliance or environmental restrictions differentiate these components.

Q: Why is the 1703218 classified as obsolete?

A: The 1703218 is no longer in active production. The 1703056 serves as the current production equivalent within the COMBICON DFK-IPCV series for applications compatible with its electrical and dimensional specifications.