SC-100-SM SMA Male Plug Coaxial Connector - Equivalent & Substitute Parts

Part Overview

The SC-100-SM is an SMA male plug coaxial connector manufactured by Amphenol Times Microwave Systems, designed for RF applications requiring 50-ohm impedance. This connector features solder contact termination with crimp shield termination, suitable for free-hanging inline mounting on LMR-100 cable assemblies. The part is active in production status with 785 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, application-specific cable group requirements, or operational environment specifications.

Substiute Parts

SC-100-SM

Amphenol Times Microwave SystemsIn Stock: 824SC-100-SM Datasheet

Current PartRFQ

TC-400-SM-X

Amphenol Times Microwave SystemsIn Stock: 1180TC-400-SM-X Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The TC-400-SM-X is identified as a parametric equivalent to the SC-100-SM based on the following matching electrical and mechanical parameters:

• Connector style: SMA
• Connector type: Plug, Male Pin
• Impedance: 50 Ohms
• Contact termination: Solder
• Shield termination: Crimp
• Mounting type: Free Hanging (In-Line)
• Fastening type: Threaded
• Frequency maximum: 6 GHz
• Mating cycles: 500
• Center contact material: Brass
• Body material: Brass
• Body finish: Nickel
• Center contact plating: Gold
• Dielectric material: Polytetrafluoroethylene (PTFE)
• RoHS compliance: Both parts compliant

The primary difference between these parts is the cable group compatibility: SC-100-SM supports LMR-100 cable, while TC-400-SM-X supports LMR-400 cable. This distinction affects mechanical fit and impedance matching in specific cable assemblies.

Parameter Comparison

Engineering Selection Recommendations

Both SC-100-SM and TC-400-SM-X are active production parts with full RoHS compliance. The TC-400-SM-X offers an extended lower operating temperature limit of -55°C compared to the SC-100-SM at -40°C, providing broader environmental capability. Selection between these parts depends on cable group requirements: SC-100-SM is specified for LMR-100 cable assemblies, while TC-400-SM-X is specified for LMR-400 cable assemblies. Both parts maintain identical electrical performance at 50 ohms impedance and 6 GHz maximum frequency. The TC-400-SM-X provides higher inventory availability at 1141 units versus 785 units for the SC-100-SM.

Frequently Asked Questions (FAQ)

Q: Can TC-400-SM-X be used as a direct replacement for SC-100-SM?

A: Electrical and mechanical parameters are equivalent. However, cable group compatibility differs: SC-100-SM is designed for LMR-100 cable, while TC-400-SM-X is designed for LMR-400 cable. Substitution is valid only when the application permits LMR-400 cable group usage.

Q: What is the significance of the cable group designation?

A: Cable group designation indicates the outer diameter and mechanical fit of the cable for which the connector is optimized. LMR-100 and LMR-400 cables have different diameters. Using a connector specified for a different cable group may result in improper mechanical fit or impedance mismatch.

Q: Are there temperature operating differences between these parts?

A: TC-400-SM-X operates from -55°C to 125°C, while SC-100-SM operates from -40°C to 125°C. For applications requiring operation below -40°C, TC-400-SM-X is the appropriate selection.

Q: Do both parts meet RoHS requirements?

A: Yes. SC-100-SM is RoHS Compliant, and TC-400-SM-X is ROHS3 Compliant. Both meet current RoHS standards.

Q: What is the difference in packaging between these parts?

A: SC-100-SM is supplied in bag packaging, while TC-400-SM-X is supplied in bulk packaging. This affects handling and inventory management but does not impact electrical or mechanical performance.