M3933/25-86S

Overview

The M3933/25-86S is a fixed RF attenuator manufactured by Amphenol SV Microwave, designed for high-frequency applications up to 18 GHz. It features SMA male-to-female connectors and maintains a 50 Ohm impedance. The unit provides a nominal attenuation of 18 dB with a power rating of 2 W. Constructed with stainless steel components, it ensures durability in demanding environments. The device operates within a temperature range of -65°C to +165°C and is screened for military specifications.

Feature Summary

• Provides precise 18 dB signal attenuation across the DC to 18 GHz frequency spectrum.
• Features robust stainless steel construction for enhanced mechanical stability and environmental resistance.
• Designed with screened military specification compliance for reliable performance in harsh conditions.

Applications

• Military radar systems requiring stable signal reduction
• Avionics test and measurement equipment
• High-frequency communication infrastructure

Procurement Notes

Verify the specific screening requirements against the official datasheet before procurement, as military-grade variants often require distinct qualification standards. Confirm that the SMA connector gender configuration matches the system interface needs. Ensure the 2 W power rating aligns with the operational signal levels to prevent component damage. Cross-reference the part number suffix to confirm the exact attenuation value and material composition specified by the manufacturer.

Selection Notes

Select this model when an 18 dB attenuation value is required within the 18 GHz bandwidth. The SMA interface suits standard coaxial connections, while the stainless steel build supports extreme thermal cycling. Consider the 2 W power handling limit relative to peak signal strengths. This component is suitable for applications demanding high reliability and strict adherence to military environmental standards.

Part Context

This component belongs to the M3933 series of RF attenuators from Amphenol SV Microwave. The series offers various attenuation values and connector configurations tailored for defense and aerospace sectors. The M3933/25-86S specifically utilizes SMA interfaces and delivers 18 dB of loss, fitting into the broader portfolio of screened microwave interconnect solutions.

Replacement Considerations

M3933/25-84S