Keysight 423B Low-barrier Schottky Diode Detector
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Keysight 423B is a low-barrier Schottky diode detector offering ±0.3 dB frequency response and high sensitivity for RF power measurement and leveling applications up to 12.4 GHz.
Product details
| Model | 423B |
| Manufacturer | Keysight |
| Category | Battery Testers & Analyzers |
| Availability | Made to order |
Description
Overview
The Keysight 423B is a low-barrier Schottky diode detector widely used in RF and microwave applications for power sensing and leveling. It provides reliable, rugged performance across a broad frequency range with matched pair options for improved detector tracking in critical applications.
Key Features
- Frequency response: ±0.3 dB across operating range
- Maximum input SWR: 1.15 (10 MHz to 4 GHz); 1.3 (4 GHz to 12.4 GHz)
- Low-level sensitivity: greater than 0.5 mV/µW
- Output polarity: Negative
- Maximum continuous input power: 200 mW
- Short-term maximum input power (less than 1 minute): 1 W
- Noise floor: less than 50 µV
- Available with matched pairs option for superior tracking
Applications
- RF power measurement and monitoring
- Automatic leveling and gain control circuits
- Directional coupler and bridge measurements
- Video load applications for extended square-law region
Specifications
| Frequency Range | 10 MHz to 12.4 GHz |
| Frequency Response | ±0.3 dB |
| Maximum SWR (10 MHz - 4 GHz) | 1.15 |
| Maximum SWR (4 GHz - 12.4 GHz) | 1.3 |
| Low-level Sensitivity | > 0.5 mV/µW |
| Output Polarity | Negative |
| Maximum Continuous Input Power | 200 mW |
| Maximum Short-term Input Power | 1 W (< 1 minute) |
| Noise | < 50 µV |
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Keysight 423B Low-barrier Schottky Diode Detector
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