The **LPS5030-683MLB** is a high-performance, shielded power inductor manufactured by **Coilcraft**. It belongs to the LPS5030 series, which is known for its low profile and high current handling capabilities. ### 1. Technical Specifications The part number "683MLB" encodes the primary electrical characteristics of the component: | Feature | Specification | Description | | :--- | :--- | :--- | | **Inductance** | 68 µH | The nominal inductance measured at 100 kHz. | | **Tolerance** | ±20% (M) | The allowable variance from the nominal inductance. | | **DCR (Max)** | 0.440 Ohms | The maximum Direct Current Resistance of the internal wire. | | **SRF (Typ)** | 10 MHz | Self-Resonant Frequency; the limit of inductive behavior. | | **Isat** | 0.82 A | Saturation Current; current where inductance drops by 30%. | | **Irms** | 0.90 A | Root Mean Square current based on a 40°C temperature rise. | --- ### 2. Key Physical Features * **Shielding:** It is a magnetically shielded inductor. This minimizes Electromagnetic Interference (EMI) with surrounding components, making it ideal for high-density PCB layouts. * **Form Factor:** The "5030" indicates the dimensions: * **Footprint:** 5.0 mm x 5.0 mm * **Height:** 3.0 mm (Low profile) * **Termination:** Matte tin over nickel over silver-palladium-platinum. --- ### 3. Common Applications Due to its balance of size and current rating, the LPS5030-683MLB is frequently used in: 1. **DC-DC Converters:** Essential for energy storage in buck, boost, or SEPIC converters. 2. **Portable Electronics:** Used in tablets and handheld devices where vertical space is limited. 3. **LED Drivers:** Provides stable current regulation for lighting circuits. 4. **Noise Filtering:** Acts as a low-pass filter to smooth out ripples in power supply lines. --- ### 4. Part Number Breakdown The nomenclature can be decoded as follows: * **LPS**: Series Name (Low Profile Shielded). * **5030**: Package Size (5.0 x 5.0 x 3.0 mm). * **683**: Inductance code (68 followed by 3 zeros = 68,000 nH = **68 µH**). * **M**: Tolerance (**±20%**). * **L**: Termination type (L = RoHS compliant matte tin over nickel over silver-palladium-platinum). * **B**: Packaging (B = Machine Ready, usually 7" reel).