The **CMH322522-R10ML** is a Surface Mount Device (SMD) Chip Inductor, typically used in high-frequency circuits and general-purpose decoupling. This part follows a specific naming convention that identifies its physical size and electrical characteristics. --- ### 1. Part Number Breakdown Understanding the alphanumeric code helps in identifying its specifications: | Segment | Code | Meaning | | :--- | :--- | :--- | | **Series** | CMH | Wire-wound chip inductor (High frequency/High stability) | | **Size** | 322522 | Dimensions: 3.2mm x 2.5mm x 2.2mm (EIA 1210) | | **Value** | R10 | Inductance value: **0.10 µH** (R denotes the decimal point) | | **Tolerance** | M | **±20%** tolerance | | **Packaging** | L | Embossed tape & reel packaging | --- ### 2. Key Technical Specifications While exact values can vary slightly by manufacturer (such as Bourns or Taiyo Yuden), the general characteristics for an R10M inductor in this footprint are: * **Inductance:** 0.10 µH (100 nH). * **Case Size:** 1210 (Metric 3225). * **Operating Temperature:** Typically -40°C to +125°C. * **Core Material:** Usually Ferrite or Ceramic (depending on specific series optimization). * **DC Resistance (DCR):** Very low (typically < 0.20 Ω) to minimize power loss. * **Self-Resonant Frequency (SRF):** High (typically > 400 MHz), making it suitable for RF applications. --- ### 3. Application Areas Because this is a small-form-factor wire-wound inductor, it is commonly found in: 1. **RF Circuits:** Used for impedance matching and signal filtering in wireless communication devices. 2. **Power Management:** Acts as a small filter component in DC-DC converters to smooth out voltage ripples. 3. **EMI Suppression:** Used in high-speed data lines to reduce electromagnetic interference. 4. **Consumer Electronics:** Found in mobile phones, tablets, and automotive infotainment systems. --- ### 4. Footprint and Mounting The **322522** designation indicates the physical footprint: * **Length:** 3.2 mm * **Width:** 2.5 mm * **Thickness:** 2.2 mm This component is designed for **SMT (Surface Mount Technology)** assembly using automated pick-and-place machines and reflow soldering.