DB59U-25 Equivalent & Substitute Parts

Part Overview

The DB59U-25 is a coaxial connector from Belden's DB59 series, supplied as a 25-pack unit. This product is classified as obsolete, making identification of active equivalent parts essential for procurement and system continuity. The DB59U-25 serves as an RF connector for coaxial cable applications requiring standard 75-ohm impedance termination. Due to its obsolete status, the FSNS59U-25 represents the current active alternative from Belden's product portfolio.

Substiute Parts

DB59U-25

BeldenIn Stock: 993DB59U-25 Datasheet

Current PartRFQ

FSNS59U-25

Belden Inc.In Stock: 1019FSNS59U-25 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The FSNS59U-25 qualifies as a direct substitute for the DB59U-25 based on the following critical parameters:

• Manufacturer: Both parts are manufactured by Belden, ensuring design consistency and quality standards
• Category: Both are classified as Coaxial Connectors (RF)
• Impedance: 75 Ohms (standard for both DB59 and FSNS59 series)
• Connector Type: F Type connector architecture
• Packaging: 25-pack unit configuration
• Regulatory Compliance: Both maintain REACH Unaffected status and EAR99 ECCN classification
• HTSUS Classification: Identical tariff code (8536.69.4010)

The substitution is valid because the FSNS59U-25 maintains electrical and mechanical compatibility through identical impedance, connector type, and packaging quantity, while offering active product status and current manufacturing support.

Parameter Comparison

Engineering Selection Recommendations

The FSNS59U-25 is the appropriate selection for applications currently using or specifying the DB59U-25. The substitution is supported by:

• Product Status Alignment: The FSNS59U-25 maintains active manufacturing status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both parts share identical REACH and ECCN classifications, eliminating compliance barriers for direct substitution
• Tariff Classification: Identical HTSUS coding confirms equivalent product classification for procurement and customs purposes
• Manufacturer Continuity: Both parts originate from Belden, maintaining design heritage and quality assurance protocols

No additional qualification or testing is required for this substitution within the scope of the provided parameters.

Frequently Asked Questions (FAQ)

Q: Can the FSNS59U-25 be used as a direct replacement for the DB59U-25?

A: Yes. Both parts are manufactured by Belden, classified as coaxial RF connectors, and share identical regulatory compliance status (REACH Unaffected, EAR99). The FSNS59U-25 is the active product line successor.

Q: What is the packaging configuration for both parts?

A: Both the DB59U-25 and FSNS59U-25 are supplied in 25-pack units. The FSNS59U-25 is classified as bulk packaging, which is standard for this product category.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical REACH status (REACH Unaffected) and ECCN classification (EAR99), with matching HTSUS tariff codes (8536.69.4010).

Q: Why is the DB59U-25 listed as obsolete?

A: The DB59U-25 has been superseded by the FSNS59U-25 within Belden's product portfolio. The FSNS59U-25 represents the current active offering for this connector type and configuration.

Q: Are there any electrical parameter differences I should be aware of?

A: The FSNS59U-25 specifies 75-ohm impedance, 1 GHz maximum frequency, and 0.20dB insertion loss. These parameters define the electrical performance of the F-type connector architecture used in both products.