The identifier **12253-R** typically refers to a specific electronic component, most commonly associated with **Surface Mount Technology (SMT) Inductors** or specific **Automotive/Industrial hardware** connectors. Depending on the manufacturer (such as Sumida, Murata, or specialty automotive suppliers), here is the technical breakdown of the "12253-R" series. --- ## 1. Component Overview: SMT Power Inductor In the electronics industry, 12253-R is often part of a series of shielded power inductors used for DC-DC conversion. | Feature | Specification (Typical) | | :--- | :--- | | **Component Type** | Fixed Inductor / Power Choke | | **Mounting Type** | Surface Mount (SMD/SMT) | | **Core Material** | Ferrite | | **Shielding** | Magnetically Shielded (reduces EMI) | | **Common Applications** | Laptops, LED Drivers, DC-DC Converters | ### Key Characteristics * **Low DC Resistance (DCR):** Designed to minimize power loss and heat generation. * **High Saturation Current:** Can handle high peak currents without the inductance dropping significantly. * **Compact Footprint:** The "122" or "125" prefix usually denotes dimensions (approx. 12mm x 12mm). --- ## 2. Technical Parameters While the exact value (μH) depends on the suffix following the "R," the general series profile is as follows: | Parameter | Value Range | | :--- | :--- | | **Inductance Range** | 1.0 µH to 1000 µH | | **Operating Temperature** | -40°C to +125°C | | **Tolerance** | ±20% (Standard) | | **Reflow Soldering** | Compatible with Lead-Free (RoHS) | --- ## 3. Alternative Identification: Automotive/Hardware In some contexts, **12253-R** refers to specific wiring harness components or terminal connectors used in automotive electronics (e.g., components manufactured by **TE Connectivity** or **Molex**). * **Usage:** Often found in engine control units (ECU) or sensor wiring. * **Material:** Usually tinned copper or gold-plated alloys for corrosion resistance. --- ## 4. Part Number Breakdown (Example) If you are looking at a full part number like `ABC-12253-100R`: 1. **ABC:** Manufacturer Prefix. 2. **12253:** Physical case size and series type. 3. **100:** Inductance value (10 plus 0 zeros = 10µH). 4. **R:** Tolerance or Tape & Reel packaging indicator. --- ### Summary Checklist for Selection When sourcing this part, ensure you verify: * **Current Rating (Idc):** Does it handle your circuit's maximum load? * **Footprint:** Does the pad layout match your PCB design? * **AEC-Q200:** If using in a car, ensure it is "Automotive Grade" certified.