The **MHR16FFJ-R** is a high-voltage, high-reliability thick film resistor, typically used in specialized industrial and medical applications. It is part of the MHR series manufactured by companies like **Vishay** or **Murata** (depending on the specific catalog era), designed to withstand high operating voltages in a small form factor. --- ### ## Technical Specifications Below are the primary electronic characteristics of the MHR16FFJ-R: | Parameter | Specification | | :--- | :--- | | **Resistor Type** | Thick Film High Voltage Resistor | | **Resistance Value** | 16 MΩ (Megaohms) | | **Tolerance** | ±1% (denoted by 'F' in the part number) | | **Power Rating** | 0.5W to 1W (varies by mounting/ambient temp) | | **Max Operating Voltage** | Up to 10kV - 15kV (Series specific) | | **Package / Case** | Radial Lead (Through-hole) | | **Coating** | Flame retardant epoxy / Silicone encapsulation | --- ### ## Key Features * **High Voltage Stability:** Designed to prevent arcing and breakdown at potentials exceeding several thousand volts. * **Precision:** The "F" code indicates a 1% tolerance, which is high precision for high-voltage components usually rated at 5% or 10%. * **Low TCR:** Features a low Temperature Coefficient of Resistance, meaning the resistance stays stable even as the component heats up. * **Compact Design:** The radial lead configuration allows for high-density packing on PCBs compared to axial resistors. --- ### ## Common Applications The MHR16FFJ-R is typically found in circuits where high-impedance voltage sensing or current limiting is required: 1. **X-Ray Power Supplies:** Used in voltage divider strings to monitor high-voltage outputs. 2. **Air Purifiers/Ionizers:** Controls the high-voltage discharge pins. 3. **CRT Displays:** Used in legacy monitors or specialized medical imaging screens. 4. **Copy Machines:** Part of the high-voltage corona wire power supply unit. 5. **Scientific Instrumentation:** Used in mass spectrometers and electron microscopes. --- ### ## Part Number Breakdown (Typical) | Segment | Meaning | | :--- | :--- | | **MHR** | Series (Metal High-voltage Resistor) | | **16** | Resistance Value (Base) | | **F** | Multiplier / Value Code | | **F** | Tolerance (±1%) | | **J** | Temperature Coefficient / Packaging Code | | **-R** | RoHS Compliant (Lead-free) | ---