TC-400-NM Equivalent & Substitute Parts

Part Overview

The TC-400-NM is an N-type coaxial connector plug manufactured by Amphenol Times Microwave Systems, designed for 50-ohm RF applications with free-hanging (in-line) solder termination and crimp shield termination. This connector is rated for frequencies up to 2.5 GHz and operates across a temperature range of -5°C to 75°C. The part is currently listed as obsolete, making identification of active equivalent components essential for ongoing procurement and system maintenance.

Substiute Parts

TC-400-NM

Amphenol Times Microwave SystemsIn Stock: 951TC-400-NM Datasheet

Current PartRFQ

TC-400-NMH-X

Times Microwave SystemsIn Stock: 35704TC-400-NMH-X Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The TC-400-NMH-X qualifies as a direct substitute based on the following critical parameters that define functional compatibility:

Core Electrical & Mechanical Compatibility:

• Connector Style: N Type (identical)
• Connector Type: Plug, Male Pin (identical)
• Impedance: 50 Ohms (identical)
• Contact Termination: Solder (identical)
• Shield Termination: Crimp (identical)
• Mounting Type: Free Hanging (In-Line) (identical)
• Fastening Type: Threaded (identical)
• Cable Group: LMR-400 (identical)
• Number of Ports: 1 (identical)

Enhanced Specifications: The TC-400-NMH-X operates at higher frequency (6 GHz vs. 2.5 GHz) and wider temperature range (-55°C ~ 155°C vs. -5°C ~ 75°C), making it suitable for applications within the TC-400-NM's operational envelope. The substitute maintains identical termination methods and impedance characteristics required for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

The TC-400-NMH-X is the active equivalent for the obsolete TC-400-NM. Selection of the substitute is based on:

Product Status: The TC-400-NM is obsolete, while TC-400-NMH-X maintains active production status, ensuring long-term availability and supply chain continuity.

Compliance: Both parts are RoHS compliant. The TC-400-NMH-X carries ROHS3 certification, meeting current regulatory requirements.

Functional Equivalence: Identical connector geometry, impedance, termination methods, and cable compatibility ensure direct mechanical and electrical interchangeability within the TC-400-NM's operational specifications.

Performance Margin: The TC-400-NMH-X provides enhanced frequency capability (6 GHz) and extended temperature range (-55°C ~ 155°C), offering operational margin beyond the original part's specifications.

Frequently Asked Questions (FAQ)

Q: Can TC-400-NMH-X be used as a direct replacement for TC-400-NM?

A: Yes. Both connectors share identical N-type plug geometry, 50-ohm impedance, solder contact termination, crimp shield termination, and LMR-400 cable compatibility. The substitute is mechanically and electrically interchangeable.

Q: What are the key differences between these parts?

A: The TC-400-NMH-X operates at higher maximum frequency (6 GHz vs. 2.5 GHz) and supports a wider temperature range (-55°C ~ 155°C vs. -5°C ~ 75°C). Body finish differs (White Bronze vs. Nickel), and the substitute specifies 0.1 dB insertion loss. Both maintain gold-plated center contacts and identical termination methods.

Q: Why is the TC-400-NM obsolete?

A: The TC-400-NM is listed as obsolete by the manufacturer. The TC-400-NMH-X represents the active production equivalent within the TC series.

Q: Are there packaging differences?

A: The TC-400-NM packaging is not specified in available data. The TC-400-NMH-X is supplied in bulk packaging. Confirm packaging requirements with your procurement specifications.

Q: Does the body finish change affect performance?

A: Both finishes (Nickel and White Bronze) provide corrosion resistance and RF shielding. The change does not affect electrical performance or impedance characteristics for 50-ohm applications.

Q: Is the TC-400-NMH-X suitable for my application if it operates below 2.5 GHz?

A: Yes. The TC-400-NMH-X is rated to 6 GHz, making it fully compatible with applications operating at or below 2.5 GHz. The higher frequency rating provides operational margin.