The **LPS5030-183MLD** is a high-performance, low-profile shielded power inductor manufactured by **Coilcraft**. It is part of the LPS5030 series, specifically designed for applications where PCB height is constrained but high current handling is required. --- ### 1. Technical Specifications The part number "183MLD" encodes specific electrical characteristics: | Parameter | Specification | |:---|:---| | **Inductance** | 18 µH | | **Tolerance** | ±20% (indicated by 'M') | | **DC Resistance (DCR Max)** | 0.190 Ohms | | **SRF (Self-Resonant Frequency)** | 23 MHz | | **Isat (Saturation Current)** | 1.4 A (10% drop) / 1.3 A (30% drop) | | **Irms (RMS Current)** | 1.5 A (40°C temperature rise) | | **Shielding** | Magnetic Shielding | --- ### 2. Physical Dimensions The "5030" in the part number refers to the physical footprint (approximately 5.0 x 5.0 mm) and the height (3.0 mm). * **Length:** 4.9 mm (±0.2) * **Width:** 4.9 mm (±0.2) * **Height:** 3.0 mm (Max) * **Termination:** Matte tin over nickel over silver-palladium-glass frit. --- ### 3. Key Features & Applications #### Features * **Low Profile:** Only 3.0 mm tall, making it ideal for slim electronic devices. * **Magnetic Shielding:** Reduces Electromagnetic Interference (EMI), allowing for high-density mounting near sensitive components. * **High Current Handling:** Despite its small size, it handles relatively high saturation currents. #### Common Applications * **DC-DC Converters:** Used in buck, boost, and SEPIC topologies. * **Mobile Devices:** Smartphones, tablets, and handheld GPS units. * **Portable Media:** Digital cameras and portable gaming consoles. * **LCD Displays:** Powering driver circuits. --- ### 4. Part Number Breakdown Understanding the nomenclature helps in selecting alternatives or similar parts: | Segment | Meaning | |:---|:---| | **LPS** | Series Name (Low Profile Shielded) | | **5030** | Size Code (5.0 x 5.0 x 3.0 mm) | | **183** | Inductance Code (18 + 3 zeros = 18,000 nH = 18 µH) | | **M** | Tolerance (M = ±20%) | | **L** | Termination (L = RoHS compliant Silver-palladium-platinum-glass frit) | | **D** | Packaging (D = 13″ machine-ready reel) |