The **M2AS1-A143-R/N** is a specialized high-performance coaxial switch, typically manufactured by companies like **Teledyne Relays** or similar RF component specialists. These devices are designed to route Radio Frequency (RF) signals with extremely high precision and low loss. ### 1. Key Technical Specifications Based on the standard nomenclature for this series, here are the electronic characteristics: | Parameter | Specification | | :--- | :--- | | **Switch Type** | SPDT (Single Pole Double Throw) | | **Frequency Range** | DC to 18 GHz (typically) | | **Actuator Voltage** | 12V to 15V DC | | **Actuator Current** | ~140mA at 12V | | **Impedance** | 50 Ohms | | **Connector Type** | SMA (Female) | | **Operating Temp** | -55°C to +85°C | --- ### 2. Electronic Component Breakdown #### A. Actuator Mechanism (Fail-safe) The **"A"** in the part number often denotes a **Fail-safe** operation mode. - **Energized:** The switch moves to the "normally open" position. - **De-energized:** The switch automatically returns to its default "normally closed" position via an internal spring mechanism. #### B. The RF Path (Switching Matrix) The internal contacts are gold-plated to ensure minimal **Insertion Loss** (signal fading) and high **Isolation** (preventing signal leakage between ports). At 18 GHz, maintaining a low VSWR (Voltage Standing Wave Ratio) is critical for signal integrity. #### C. Control Interface The suffix **"R/N"** usually indicates specific options regarding: - **R:** RoHS Compliance (Lead-free construction). - **N:** Narrow body or specific mounting configuration (depending on the specific manufacturer's datasheet). --- ### 3. Application Use Cases Because of its high reliability and frequency range, the M2AS1-A143-R/N is commonly found in: 1. **Automated Test Equipment (ATE):** Routing signals between a device under test and measurement instruments. 2. **Telecommunications:** Switching between primary and redundant antenna systems. 3. **Satellite Communications:** Signal distribution in ground stations. --- ### 4. Connection Diagram (Simplified) ```text [ Control Voltage +12V ] | v +-------+-------+ | Actuator Coil | +-------+-------+ | (RF IN) --+-- (Normally Closed OUT) <-- Default \ \ (Switching Action) \ -- (Normally Open OUT) <-- When Powered ```