The Coilcraft SMD-B series represents a line of surface-mount inductors engineered for high-density applications where space efficiency is paramount. These components are designed to offer a broad spectrum of inductance values and current handling capabilities, catering to diverse engineering requirements in demanding electronic designs.
### Technical Specifications
* **Product Type:** Surface Mount Inductor
* **Series:** SMD-B
* **Manufacturer:** Coilcraft
### Electrical Specifications
Specific electrical parameters such as inductance values, current ratings, Q factors, and self-resonant frequencies (SRF) are not uniformly detailed in the provided search results for a generic “Coilcraft SMD-B” entry. These specifications are highly dependent on the specific part number within the SMD-B series. For precise electrical characteristics, consultation of individual datasheets for particular Coilcraft SMD-B part numbers is essential. However, general information regarding inductor specifications can be inferred from Coilcraft’s broader product documentation:
* **Inductance Tolerance:** Typically specified at room temperature and a specific test frequency. Inductance values can vary with temperature and frequency.
* **Current Ratings:**
* **Irms Current Rating:** An indirect measure of inductor temperature rise due to power dissipation. It indicates the maximum current allowed for safe, reliable operation without heat damage.
* **Isat Current Rating (Saturation Current):** Related to the instantaneous inductor current. Inductance decreases rapidly beyond this current level. Data sheets often specify the current at which inductance drops by 10%, 20%, or 30%.
* **DC Resistance (DCR):** Varies with temperature and is a critical factor in power dissipation calculations.
* **Q Factor:** Quality factor, a measure of inductor efficiency, is typically measured at specific frequencies.
* **Self-Resonant Frequency (SRF):** The frequency at which the inductor’s parasitic capacitance resonates with its inductance, causing its impedance to reach a maximum.
### Physical Characteristics
* **Form Factor:** Surface Mount Device (SMD)
* **Size Range:** The Coilcraft SMD-B test fixture is designed to accommodate SMD component sizes from 1008 to 1812. This suggests the inductors themselves are available in these standard SMD package sizes.
* **Construction:** Specific construction details (e.g., core material, winding type) vary by part number and are critical for performance characteristics like shielding and current handling. Coilcraft offers various inductor types including shielded and unshielded options.
### Testing and Measurement
* **Test Fixtures:** Coilcraft provides specialized test fixtures, such as the SMD-B test fixture, designed for accurate and repeatable measurements of surface mount components. These fixtures are compatible with many 4-terminal (Kelvin) impedance measurement instruments.
* **SMD-B Test Fixture Capabilities:**
* **SMD Size Range:** Accommodates components from 1008 to 1812.
* **Frequency Range:** Capable of measurements from DC to 30 MHz.
* **Features:** Minimizes stray capacitance and residual inductance. Includes spring-loaded clamps for secure component seating. Offers interchangeable placement masks for different component sizes.
* **Measurement Parameters:** Test instruments can be configured to measure parameters such as Inductance (L), Quality Factor (Q), Impedance (Z), Phase Angle (θ), Resistance (R), and Reactance (X).
* **Calibration:** The use of fixture compensation (e.g., OPEN and SHORT compensations) is crucial for accurate measurements.
### Applications
The Coilcraft SMD-B series inductors are suitable for high-density applications that require compact components with reliable performance. While specific applications for the SMD-B series are not exhaustively detailed, Coilcraft’s general product applications for SMD inductors include:
* Power supplies for automotive, industrial, and commercial electronics.
* High-frequency, narrow-band tuned circuits.
* EMI reduction.
* LED driver magnetics.
* Power injection for various communication protocols.
Why Choose Aumictech for Coilcraft SMD-B Inductors?
At Aumictech, we specialize in supplying high-performance passive electronic components. Whether you need a broad range of inductance values, high current ratings, or compact solutions for high-density board designs, our team ensures the Coilcraft SMD-B series delivers maximum performance for your application.
