The **MAH25TCX-R** is a high-performance, high-voltage, and high-precision thick film resistor. These components are primarily designed for industrial, medical, and scientific applications where stability under high-stress electrical conditions is critical. --- ### 1. Key Technical Specifications The following table highlights the general characteristics typical of the MAH series high-voltage resistors: | Parameter | Typical Value / Range | | :--- | :--- | | **Resistor Type** | High Voltage Thick Film | | **Power Rating** | 2.5 Watts (at 70°C) | | **Max Operating Voltage** | Up to 10kV - 15kV (depending on specific casing) | | **Tolerance** | ±0.5% to ±5% (standard ±1%) | | **Temperature Coefficient** | ±25 ppm/°C to ±100 ppm/°C | | **Termination Style** | Radial Leaded / Through-hole | --- ### 2. Physical Construction * **Substrate:** High-purity Alumina ($Al_2O_3$) ceramic core for excellent thermal dissipation. * **Resistive Element:** Ruthenium-oxide based thick film ink, which provides high stability and low noise. * **Encapsulation:** Coated with a high-dielectric silicone or epoxy resin to prevent arcing and protect against environmental moisture. * **Terminals:** Tinned copper leads designed for secure soldering on PCBs. --- ### 3. Application Use-Cases The MAH25TCX-R is commonly integrated into circuits that manage high potential differences. 1. **Medical Equipment:** X-ray power supplies and MRI imaging systems requiring precise voltage division. 2. **Industrial Controls:** High-voltage sensors, motor controllers, and power converters. 3. **Measurement Devices:** Used in digital multimeters and oscilloscopes as part of a high-impedance voltage divider network. 4. **Aerospace:** Power distribution units where component reliability and weight-to-performance ratios are vital. --- ### 4. Circuit Symbol and Implementation In a schematic, this part is represented by a standard resistor symbol but often includes a "High Voltage" annotation. ```text R_HighVoltage -----[===========]----- (MAH25TCX-R) ``` **Design Note:** When laying out a PCB for this part, ensure adequate **creepage and clearance** distances between the solder pads to prevent electrical tracking or arcing across the surface of the board.