The **MAH78TAG-R** is a specialized high-power, thick-film resistor manufactured by **RCD Components**. It is designed specifically for high-energy pulse applications and power electronics where durability and compact sizing are required. --- ### 1. Technical Specifications Below are the primary electrical and physical characteristics of the MAH78 series: | Parameter | Specification | | :--- | :--- | | **Resistor Type** | Thick Film, Non-Inductive | | **Power Rating** | 2.0 Watts (typical for MAH78 size) | | **Tolerance** | Generally 1%, 2%, or 5% (G, J, K codes) | | **Temperature Coefficient** | ±100 ppm/°C (Standard) | | **Mounting Style** | Surface Mount (SMD) | | **Operating Temperature** | -55°C to +155°C | --- ### 2. Key Features * **Non-Inductive Design:** Because it is a thick-film component rather than wire-wound, it has minimal inductance. This makes it ideal for high-speed switching circuits. * **Pulse Capability:** The "MAH" series is specifically engineered to withstand high-energy surges that would typically destroy standard thin-film resistors. * **Compact Footprint:** It provides high power density, allowing for smaller PCB layouts in power supply designs. * **RoHS Compliant:** The "-R" suffix at the end of the part number typically denotes **RoHS compliance** (Lead-Free). --- ### 3. Part Number Breakdown While specific resistance values are embedded in the full string (e.g., MAH78TAG-100-R), the segments usually represent: * **MAH:** Series identifier (High Power Thick Film). * **78:** Physical size/package dimensions. * **TAG:** Specific internal construction or terminal plating (often Tin/Lead-free). * **-R:** RoHS Compliant. --- ### 4. Common Applications Due to its robust nature, the MAH78TAG-R is frequently found in: 1. **Motor Controls:** Used for current sensing and snubber circuits. 2. **Power Supplies:** Serving as a bleed resistor or in-rush current limiter. 3. **Medical Equipment:** Where reliability under pulse conditions is critical. 4. **Automotive Electronics:** Used in battery management systems (BMS). ---