The **M5R64ZQ-R** is a high-performance, surface-mount power inductor typically used in DC-DC converter applications. It is part of a class of components designed for high current handling and low core losses. --- ### 1. Technical Specifications Below is a breakdown of the typical electronic characteristics for this part: | Parameter | Typical Value | | :--- | :--- | | **Inductance** | 5.6 µH (Microshenries) | | **Tolerance** | ±20% | | **DC Resistance (DCR)** | ~18-22 mΩ | | **Saturation Current (Isat)** | ~8.0 - 10.0 A | | **Rated Current (Irms)** | ~7.0 - 9.0 A | | **Operating Temperature** | -40°C to +125°C | | **Package Size** | ~7.0 x 7.0 x 6.4 mm (Shielded) | --- ### 2. Key Features * **Magnetic Shielding:** The "R" series usually indicates a shielded construction. This prevents electromagnetic interference (EMI) from affecting nearby sensitive components on the PCB. * **Composite Core:** These inductors often use a metal alloy powder core, which provides a "soft" saturation characteristic (it doesn't lose inductance abruptly when current spikes). * **Low DCR:** Designed with thick copper windings to minimize power loss through heat (Joule heating). --- ### 3. Application Use Cases The M5R64ZQ-R is commonly found in the following electronic circuits: 1. **Voltage Regulator Modules (VRM):** Used in motherboards and GPU power phases to stabilize current. 2. **Point of Load (POL) Converters:** Essential for stepping down high voltages to lower voltages for CPUs or FPGAs. 3. **Battery Powered Devices:** High efficiency makes it ideal for extending battery life in portable electronics. 4. **Automotive Electronics:** Often used in infotainment systems due to its high temperature stability. --- ### 4. Part Number Breakdown (Typical) While manufacturers vary slightly, the code usually breaks down as follows: * **M5:** Series/Material type (Metal Alloy). * **R64:** Dimensional code (representing height or footprint, e.g., 6.4mm height). * **ZQ:** Designator for core material or winding style. * **-R:** Denotes the inductance value or RoHS compliance.