# 423B Keysight Detector New

**Features:**

-   Superior RF performance
-   Frequency response: ±0.3 dB
-   Maximum SWR: 1.15 (10 MHz to 4 GHz), 1.3 (4 GHz to 12.4 GHz)
-   Low-level sensitivity: > 0.5 mV/uW
-   Output Polarity: Negative

#### Power handling

-   Maximum operating input power: 200 mW
-   Typical short-term maximum input power (< 1 minute): 1 W

#### Noise

-   Noise: < 50 uV

The Keysight 423B Low-Barrier Schottky Diode detector has been widely used for many years in a variety of applications including leveling and power sensing. It offers good performance and ruggedness. Matched pairs (Option 001) offer very good detector tracking. A video load (Option 002) extends the square-law region to at least 0.1 mW (-10 dBm).

## Details

- **Price:** 1381.0 USD
- **Vendor:** Keysight
- **Type:** Detector
- **Tags:** product_manual_group_3

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1381.00 USD | In stock |

## Images

- 423B Keysight Technologies Detector

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> Source: [ValueTronics](https://valuetronics.com/products/423b-keysight-detector-new)
> Updated: 2026-05-29