M3933/25-28S

Overview

The M3933/25-28S is a radio frequency military specification attenuator manufactured by Amphenol SV Microwave. It belongs to the SMA series and features a male-to-female connector configuration. The component operates within a frequency range of 0 Hz to 18 GHz with a nominal attenuation value of 2 dB. It maintains a characteristic impedance of 50 Ohms and supports a power rating of 2 W. The device is designed for screened applications and functions reliably within an operating temperature range of -65 °C to +165 °C.

Feature Summary

• Provides precise signal attenuation in high-frequency RF circuits
• Ensures reliable performance under extreme thermal conditions
• Supports standardized SMA interface compatibility

Applications

• Military communication systems requiring signal level control
• Test and measurement equipment calibration setups
• Aerospace electronic subsystems

Procurement Notes

Verify that the specific part number matches the required attenuation value and screening status. Confirm that the SMA gender configuration aligns with system interconnect requirements. Ensure environmental specifications meet operational temperature constraints. Validate compliance with relevant military standards before integration into critical hardware designs.

Selection Notes

Choose this component when a fixed low-value attenuation is necessary in SMA-based RF paths. Consider the screened variant if environmental protection is required. Evaluate the power handling capabilities against system peak levels. Assess the frequency response characteristics to ensure flat attenuation across the operational bandwidth.

Part Context

This model is part of the M3933 series, which encompasses various RF attenuators designed for rugged environments. The series includes different attenuation values and connector types. This specific unit utilizes the SMA interface, widely adopted in defense and aerospace applications for its stability and performance at microwave frequencies.

Replacement Considerations

M3933/25-28N