Push-Button Step Attenuator, 0–90 dB, 1 dB Steps
Eight mechanical keys, 1 dB resolution, no power required
Overview
This is the attenuator you reach for when you want to change level quickly and trust the number without checking a display. Eight keys combine in binary-plus groups (typically 1/2/4/8/16/20/20/20 dB) to reach any value from 0 to 90 dB in 1 dB steps. The setting is mechanically latched, so it survives a power interruption and cannot be changed by software.
The 5 W average rating at 25 °C suits bench work and receiver sensitivity testing. Standard connectors are N-type on both ends; SMA is available in the 2S configuration of the same family.
Insertion loss is 3.5 dB or better at the 0 dB setting, VSWR is 1.5:1 or better across DC–3 GHz, and attenuation accuracy follows the usual ±0.5 dB to ±3% bands by range. Treat those as reference values and confirm against the delivered datasheet for your unit.
Specifications
Features
- Mechanical latching holds the setting with no power applied
- 1 dB resolution across the full 0–90 dB range
- Front-panel keys make the current value readable at a glance
- Works in-line as a drop-in attenuator section or as a bench accessory
- N-type standard with SMA option in the same family
Typical applications
- Receiver sensitivity testing
- Signal level control in lab setups
- Microwave system alignment
Discuss this configuration
Send the device details and the measurement you need to make. We will confirm which specifications are fixed and which need verification on your sample.
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