The **TMPF0702A-R68MN-D** is a high-performance, shielded power inductor typically manufactured by **Taiyo Yuden** (now part of the TTM/Laird family in some regions) or similar high-end magnetic component specialists. It is designed specifically for high-density power supply circuits. --- ### 1. Part Number Breakdown Understanding the nomenclature helps identify the component's characteristics: | Code | Component Detail | Description | | :--- | :--- | :--- | | **TMPF** | Series Name | Molded Power Inductor (Metal Alloy Type) | | **0702** | Dimensions | Approx. 7.0 x 6.6 mm footprint, 2.0 mm height | | **R68** | Inductance Value | 0.68 µH (Microhenries) | | **M** | Tolerance | ±20% | | **N** | Internal Code | Manufacturer-specific production/material code | | **-D** | Packaging/Special | Usually indicates Automotive Grade (AEC-Q200) or specific reel packaging | --- ### 2. Key Technical Specifications These values are standard for this class of molded inductor: * **Inductance:** 0.68 µH * **DC Resistance (DCR):** Low (typically < 10 mΩ to minimize power loss). * **Saturation Current (Isat):** High (often > 15A), allowing it to maintain inductance under high load. * **Operating Temperature:** Typically -40°C to +125°C or +155°C (if automotive grade). * **Shielding:** Magnetic shielding provided by the metal alloy powder construction. --- ### 3. Core Technologies & Advantages The TMPF series utilizes **Metal Alloy Powder** rather than traditional ferrite. This provides several benefits: 1. **Soft Saturation:** Unlike ferrite inductors that lose inductance sharply when current limits are exceeded, this part loses inductance gradually. 2. **Low Profile:** The "0702" size (2.0 mm height) is ideal for ultra-thin laptops and handheld devices. 3. **EMI Shielding:** The molded body acts as a natural shield, reducing electromagnetic interference (EMI) with neighboring components. 4. **High Efficiency:** Lower DCR ensures minimal heating during high-current operations. --- ### 4. Typical Applications This inductor is used in DC-DC converters for: * **Graphic Cards (GPUs):** Voltage regulator modules (VRM). * **Laptops/Tablets:** CPU power supplies where space is limited. * **Automotive Electronics:** Infotainment systems and ADAS sensors. * **Servers:** High-current point-of-load (POL) converters.