Inductors, Crystals & Beads
Inductors, Crystals & Ferrite Beads
Whether you're designing a switching power supply, precision oscillator circuit, or EMI-suppressed data line, our Inductors, Crystals & Ferrite Beads collection has the passive components you need. We stock a comprehensive range of SMD and through-hole (DIP) inductors, quartz crystal resonators, passive crystal oscillators, and ferrite beads — sourced from trusted manufacturers and available in convenient assortment kits, bulk reels, and small-quantity packs. From nano-henry RF chokes to milli-henry power inductors, and from 9 MHz HC-49S crystals to high-frequency SMD oscillators, you'll find the right part to keep your designs stable, clean, and efficient.
Featured Products
- 1000pcs 0805 SMD Inductor Kit 100nH–100uH Assortment — A wide-range assortment kit perfect for prototyping and stocking your workbench with commonly needed inductance values.
- 4000pcs SMD Inductors 0402–1206 | 47nH to 100µH Tape & Reel — Bulk tape-and-reel supply covering multiple SMD footprints, ideal for production runs and automated pick-and-place assembly.
- 1000pcs Crystal Oscillator 2x6mm 3x8mm 12.5pF – Multi Frequency — A bulk assortment of cylindrical crystal oscillators spanning multiple frequencies, great for keeping your lab well stocked.
- 100pcs 0805 SMD Ferrite Beads 10R–1.5K EMI Filter Kit — An essential EMI suppression kit covering a broad impedance range for filtering noise on power and signal lines.
- 5-Pack Clip-On Ferrite Bead RFI Noise Filter – USB & Cable Clamp — Easy-to-install clip-on ferrite cores for suppressing RFI on USB cables, power cords, and other external wiring — no soldering required.
What's In This Category?
Inductors
Inductors are fundamental passive components used for energy storage, filtering, and impedance matching. Our range covers SMD chip inductors in 0402, 0603, 0805, and 1206 footprints, as well as larger SMD power inductors (0406, 0630, 1260/1265) rated for higher currents. We also carry classic DIP color-ring inductors in assortment kits for through-hole designs. Inductance values span from 47nH all the way up to 100µH and beyond.
Quartz Crystals & Crystal Oscillators
Accurate timing is critical in microcontroller, communication, and RF circuits. Our selection of HC-49S quartz crystal resonators, passive SMD 4-pin crystal oscillators, and bulk cylindrical oscillators provide stable clock references across a broad frequency range — including popular values like 9 MHz, 16 MHz, 24 MHz, 25 MHz, 26 MHz, and 32 MHz.
Ferrite Beads & EMI Filters
Ferrite beads are the go-to solution for suppressing high-frequency noise on power rails and signal lines. We offer multilayer chip ferrite beads in 0805 packaging rated for 2A–6A at 100 MHz, SMD ferrite bead kits spanning 10Ω–1.5kΩ impedance, and convenient clip-on ferrite bead noise filters for cables and USB lines — no PCB required.
Isolation Transformers
For applications requiring galvanic isolation on compact PCBs, we stock SMD isolation transformers such as the VPT87DB-01A in a small-footprint SMD-6P package.
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Frequently Asked Questions
Q: What is the difference between an inductor and a ferrite bead in circuit design?
A: Both inductors and ferrite beads oppose changes in current, but they serve different purposes. Inductors are designed to store and release energy efficiently, making them ideal for DC-DC converters, filters, and RF circuits. Ferrite beads are optimized to dissipate high-frequency noise as heat rather than store energy, making them the preferred choice for EMI suppression on power rails and signal lines. If you need energy storage or precise inductance, choose an inductor; if you need to kill high-frequency noise, use a ferrite bead.
Q: How do I choose the right quartz crystal resonator or oscillator for my microcontroller?
A: When selecting a quartz crystal resonator or passive crystal oscillator, consider three key parameters: (1) Frequency — match it to your microcontroller's clock input specification (e.g., 16 MHz for many Arduino-compatible boards, 25 MHz for Ethernet PHYs); (2) Load capacitance — common values are 12.5 pF or 18 pF; check your MCU datasheet; and (3) Package type — choose HC-49S DIP for through-hole designs or SMD 2016/4-pin packages for space-constrained PCB layouts. Our assortment kits and multi-frequency bulk packs are a cost-effective way to stock the most popular values.
Q: What SMD inductor size and current rating do I need for a switching power supply?
A: For a switching power supply (buck, boost, or buck-boost converter), you need a power inductor — not a standard chip inductor. Look for inductors in larger packages such as 0630 or 1260/1265, which are rated for higher saturation currents (typically 1A and above). Key parameters to check are: inductance value (µH), saturation current (A), and DC resistance (DCR, in mΩ). Our NioCen SMD power inductors in 0406 and 0630 sizes cover inductance values from 1µH to 30mH and are well-suited for power conversion applications.
Q: Are your inductors and crystals available in bulk reels for production use?
A: Yes! We offer several products in tape-and-reel format optimized for production and automated assembly. For example, our 4000pcs SMD Inductor Tape & Reel and the 0805 Multilayer Chip Ferrite Beads 4000pcs Reel are designed for high-volume pick-and-place assembly. For smaller prototyping needs, we also carry assortment kits and 10–100 piece packs.
