Agilent/Keysight 44472A

The Agilent/Keysight 44472A is a dual 1×4 VHF multiplexer module designed for precise signal routing in demanding applications up to 300 MHz. This component offers two independent 1×4 coaxial switches, providing broadband switching capabilities suitable for high-frequency and pulse signals. Its design emphasizes very low crosstalk, making it ideal for VHF signal measurements when used with spectrum analyzers, network analyzers, or distortion analyzers. Additionally, it ensures excellent signal integrity for multiplexing inputs to GPIB oscilloscopes or waveform analyzers. Each group of four channels is isolated from the other and from the chassis to prevent ground loops, and it features BNC connectors for convenient signal connections. The product is now considered obsolete by Keysight.

### Technical Specifications

* **Product Type:** Multiplexer Module
* **Configuration:** Dual 1×4
* **Brand:** Agilent / Keysight
* **Model Number:** 44472A
* **Maximum Frequency:** 300 MHz
* **Characteristic Impedance:** 50 Ohms
* **Switching Capability:** DC to 300 MHz
* **Signal Type:** Analog, VHF signals, high-frequency and pulse signals
* **Connectors:** BNC

### Electrical Characteristics

* **Insertion Loss:**
* < 0.5 dB at 30 MHz * < 0.75 dB at 100 MHz * < 1.25 dB at 300 MHz * < 0.75 dB at 300 MHz (listed as typical for a dual 1x4 configuration) * **Isolation:** * Within a Group: <-100 dB at 30 MHz, <-85 dB at 100 MHz, <-85 dB at 300 MHz * Group-to-Group: <-85 dB at 30 MHz, <-65 dB at 100 MHz, <-50 dB at 300 MHz * > 60 dB (general specification)
* **VSWR:**
* < 1.06 at 30 MHz * < 1.12 at 100 MHz * < 1.43 at 300 MHz * **Initial Closed Channel Resistance:** < 1 Ohm * **DC Isolation:** > 10⁷ Ohm (at <40°C, 95% RH) * **Capacitance:** * Center-center, center-common: < 0.002 pF * Center-low: < 70 pF * Low-chassis: < 0.20 uF * **Rise Time:** < 0.7 nsec * **Signal Delay:** < 2.5 nsec (channel match <90 psec) * **Thermal Offset:** < 15 uV * **Maximum Voltage:** * Center-center, center-low: 250V DC, 30V AC RMS, or 42V AC peak * Low-chassis or low-low: 42V DC * **Maximum Current (per channel):** 30mA DC, 300mA AC RMS### Physical Characteristics* **Dimensions:** Approximately 8 × 6 × 4 inches * **Weight:** Approximately 5 lbs### Compatibility* The Agilent/Keysight 44472A is designed for use with systems such as the HP/Agilent 3488A and 3499A/B/C mainframes.Why Choose Aumictech for the Agilent/Keysight 44472A? At Aumictech, we specialize in sourcing and verifying high-performance test and measurement equipment. Whether you need precise signal routing for complex RF test setups, reliable switching for automated test systems, or robust components for demanding laboratory applications, our team ensures that the Agilent/Keysight 44472A delivers maximum performance and reliability for your specific application.