KT4.0-90/1S Key Switchable Attenuator Technical Specifications

The KT4.0-90/1S-2N stepping coaxial attenuator can adjust the circuit's signal level in 1dB steps without interrupting the circuit. It can also serve as an internal attenuator for instrument equipment, used to adjust the power level in testing systems. It features compact size, high precision, and stable reliability.

1. Operating Frequency: DC-4.0GHz

2. Attenuation adjustment range: 0-90dB step

3. Decrement Steps: 1, 2, 4, 8, 16, 20, 20, 20, (dB)

4. Insertion Loss: ≤4.0 dB

5. Standing Wave Ratio: ≤1.35

6. Single Key Attenuation Accuracy: ±1.0 dB Max

Multiple-key attenuation accuracy: ±1.0dB Max (1-10dB)

                            ±4.0dB Max（11-60dB）

                            ±10.0dB Max（61-90dB）

7. Rated Power: 2W

8. Connector Type: SMA-K-K or N-K-K

9. Temperature Range: -10℃ to +50℃ (operational)

-40℃ to +70℃ (not in operation)

10. Dimensions: 130x20X31.5mm

11. Weight: 175g

Use Instructions:

Switch lifespan: 5,000 cycles, operating at a speed of 15-20 cycles per second for 5,000 cycles.

2. Gently press and release during use to avoid loose, bending, or other mechanical deformations of the switch.