Phoenix Contact 1704521 Terminal Block Header - Equivalent & Substitute Parts

Part Overview

The Phoenix Contact 1704521 is a 6-position terminal block header with male pins and partial shroud, designed for 0.197" (5.00mm) pitch vertical through-hole applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The part operates at IEC ratings of 14.6A at 400V and UL ratings of 10A at 300V, with solder termination and polyamide housing rated UL94 V-0.

Substiute Parts

1704521

Phoenix ContactIn Stock: 10571704521 Datasheet

Current PartRFQ

691311700006

Würth ElektronikIn Stock: 1041691311700006 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The Würth Elektronik 691311700006 qualifies as a functional substitute for the Phoenix Contact 1704521 based on the following critical parameters:

Matching Parameters:

• Number of positions: 6
• Pitch: 0.197" (5.00mm)
• Header orientation: Vertical
• Termination style: Solder
• Mounting type: Through hole
• Voltage - UL: 300V
• Material flammability rating: UL94 V-0
• Contact mating finish: Tin

Substitution Basis: The 691311700006 maintains electrical and mechanical compatibility through identical position count, pitch spacing, and through-hole mounting configuration. Both components support solder termination and meet the same flammability standard. The substitute part is currently in active production status, providing supply continuity for the obsolete Phoenix Contact model.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 691311700006 is the designated substitute for the obsolete Phoenix Contact 1704521. Selection is supported by:

Compliance & Certification: Both components meet UL94 V-0 flammability requirements and maintain RoHS compliance. The substitute part carries ROHS3 Compliant status with REACH Affected designation, meeting current regulatory standards.

Electrical Compatibility: The substitute part exceeds the original component's UL current rating (20A versus 10A) while maintaining the same 300V UL voltage specification. This provides enhanced current capacity for equivalent or higher-demand applications.

Mechanical Compatibility: Identical pitch (5.00mm), position count (6), and through-hole mounting ensure direct PCB footprint compatibility. Minor dimensional variations in contact tail length (0.157" versus 0.138") and insulation height (0.472" versus 0.441") do not affect functional placement or mating operations.

Production Status: The substitute part is in active production with confirmed inventory availability, eliminating supply chain risk associated with the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 691311700006 directly replace the Phoenix Contact 1704521 on existing PCBs?

A: Yes. Both components share identical 0.197" (5.00mm) pitch spacing, 6-position configuration, and through-hole mounting. PCB footprints are compatible. Minor dimensional differences in contact tail length and insulation height do not affect placement or mating.

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

A: The primary differences are manufacturer, product status (obsolete versus active), shroud design (partial versus 2-side shrouded), housing material (polyamide versus polybutylene terephthalate), and current rating (10A UL versus 20A UL). The substitute part provides higher current capacity.

Q: Are there compliance or certification concerns with substitution?

A: No. Both components meet UL94 V-0 flammability standards and RoHS requirements. The substitute part carries current ROHS3 Compliant and REACH Affected certifications, meeting modern regulatory frameworks.

Q: Does the higher current rating of the substitute part affect compatibility?

A: No. Higher current capacity is a beneficial characteristic that does not compromise compatibility. Applications designed for the original 10A rating operate safely within the substitute part's 20A specification.

Q: What should be verified before substitution in production?

A: Confirm PCB layout accommodates the substitute part's dimensional specifications, particularly the 0.157" (4.00mm) contact tail length and 0.472" (12.00mm) insulation height. Verify connector mating compatibility with existing harnesses or receptacles.