KitsInductor Kits are modular assemblies containing inductors with varying specifications, designed for rapid prototyping, educational purposes, and industrial applications. Inductors are passive electronic components that store energy in magnetic fields and resist current changes. They are critical in power management, signal filtering, and electromagnetic interference (EMI) suppression. Modern electronics rely on inductors for efficient voltage regulation in devices ranging from smartphones to industrial machinery.
| Type | Functional Features | Application Examples |
|---|---|---|
| Fixed Inductors | Stable inductance value, low tolerance | Power supplies, DC-DC converters |
| Variable Inductors | Adjustable inductance via movable core | Tunable RF circuits, radio frequency matching |
| Power Inductors | High current handling, low DCR | Switching regulators, motor drives |
| RF Inductors | High Q-factor, low parasitic capacitance | 5G base stations, wireless charging systems |
| Common Mode Chokes | Differential-mode noise suppression | Network interfaces, power line filters |
Typical KitsInductor Kits consist of: - Coil Windings: Copper or aluminum wire wound around a core - Magnetic Core: Ferrite, powdered iron, or toroidal materials - Encapsulation: Molded plastic or epoxy coating - Termination: SMD pads or through-hole leads - Identification Markings: Inductance value codes and ratings
| Parameter | Description | Importance |
|---|---|---|
| Inductance (L) | Ranges from nH to mH | Determines energy storage capacity |
| Current Rating (IDC) | 100mA-20A | Prevents saturation in power circuits |
| DC Resistance (DCR) | 10m -5 | Affects efficiency and thermal performance |
| Self-Resonant Frequency (SRF) | 1MHz-200MHz | Defines operational frequency limits |
| Q Factor | 20-300 | Indicates quality of energy storage at RF |
| Manufacturer | Key Product | Features |
|---|---|---|
| TDK Corporation | CDRH3D28 | 1.5 H power inductor, 8.1A rating |
| Coilcraft | 0402CS Series | 100MHz SRF, 0.1 H-10 H range |
| Vishay Dale | IHLP-2525CZ | Compliant with AEC-Q200 automotive standard |
Key selection criteria include: - Matching inductance value to switching frequency (e.g., 10 H for 100kHz buck converters) - Current rating exceeding peak circuit requirements by 20% - Operating temperature range (-55 C to +155 C for industrial) - Package size constraints (0402 to 1812 SMD for portables) - Cost optimization for mass production
Example: For a 2A smartphone PMIC, select 2.2 H 0603 inductor with <200m DCR.Future developments include: - Miniaturization: 0201-inch SMD inductors for wearable devices - High-frequency operation: SRF >10GHz for mmWave applications - Integrated solutions: Inductor-IC co-packaging for VRMs - Advanced materials: Amorphous nanocrystalline cores for EVs - Environmental compliance: Halogen-free encapsulation materials