The Keysight 8495B (formerly Agilent) is a manual coaxial step attenuator operating from DC to 18 GHz. Designed for high repeatability and reliability, it offers an attenuation range of 0 to 70 dB in 10 dB steps, utilizing precision gold-plated leaf spring contacts to ensure a long operating life of over 5 million cycles.
Specifications
Physical
| Parameter | Value |
|---|---|
| Power Supply | Not applicable (manual control only) |
| Operating Temperature | 0 to 55 °C |
RF Performance
| Parameter | Value |
|---|---|
| Frequency Range | DC to 18 GHz |
| Attenuation Range | 0 to 70 dB |
| Attenuation Step Size | 10 dB |
| Nominal Impedance | 50 Ω |
| Maximum Insertion Loss (at 0 dB) | 0.4 dB + 0.07 dB/GHz |
| Maximum VSWR (DC to 8 GHz) | 1.35 |
| Maximum VSWR (8 to 12.4 GHz) | 1.5 |
| Maximum VSWR (12.4 to 18 GHz) | 1.7 |
| Maximum RF Input Power (Average) | 1 W |
| Maximum RF Input Power (Peak) | 100 W |
| Peak Power Pulse Width | 10 µs max |
Mechanical & Reliability
| Parameter | Value |
|---|---|
| Switching Life | 5 million cycles per section |
| RF Connector Options | Type-N female, SMA female, APC-7 |
| Control Type | Manual |
Environmental
| Parameter | Value |
|---|---|
| Operating Altitude | 4,600 m (15,000 ft) |
| Non-Operating Altitude | 15,200 m (50,000 ft) |
Ordering & Accessory Information
| Parameter | Value |
|---|---|
| Compatible Interconnect Kits | Agilent 11716A/B/C |
Performance
| Parameter | Value |
|---|---|
| RF Power Sensitivity | < 0.001 dB/W |
| Number of Attenuation Sections | 3 sections (10 dB, 20 dB, 40 dB) |
| Switching Speed | Not applicable (manual control only) |
Electrical (Solenoid)
| Parameter | Value |
|---|---|
| Solenoid Coil Resistance | Not applicable (manual control only) |
| Solenoid Current | Not applicable (manual control only) |
| Solenoid Connection | Not applicable (manual attenuator) |
Technology
Coaxial Step Attenuator
Applications
RF and Microwave Signal Attenuation