SPT30L-353MLD COILCRAFT Inductor (Other) In Stock
Coilcraft SPT30L-353MLD is a 35 µH, 1.6 A general-purpose power inductor with 20% tolerance, 12 MHz self-resonant frequency, and only 0.166 Ω DC resistance in a 4444 case size with powdered iron core. Designed for DC-DC converter filtering and energy storage in power supply designs. Available from authorized distributors with worldwide shipping.
- Manufacturer
- COILCRAFT
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- SPT30L-353MLD Datasheet PDF
- Category
- Inductor
- Price
- From $1.0500(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of SPT30L-353MLD?
- 35 µH inductance with 1.6 A current rating and low 0.166 Ω DC resistance for efficient energy storage in power inductor applications
- Powdered iron core material provides good saturation characteristics and stable inductance under load in DC-DC converter designs
- 12 MHz self-resonant frequency in a 4444 case size enables use in switching power supply filter stages up to medium switching frequencies
What is SPT30L-353MLD used for?
SPT30L-353MLD is used as an output filter inductor in DC-DC buck and boost converters operating at switching frequencies up to 12 MHz, where its 35 µH inductance and 1.6 A current rating provide effective ripple current reduction. The low 0.166 Ω DC resistance minimizes power dissipation, making it suitable for efficiency-sensitive power supplies in industrial equipment, embedded computing, and consumer electronics. Its powdered iron core offers good overload tolerance for circuits with dynamic load transients.
What are the specifications of SPT30L-353MLD?
| Pbfree Code | Yes |
| YTEOL | 6.9 |
| Case/Size Code | 4444 |
| Core Material | POWERED IRON |
| DC Resistance | 0.166Ω |
| Inductance-Nom (L) | 35 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e2 |
| Number of Functions | 1 |
| Package Height | 9.5mm |
| Package Length | 11.18mm |
| Package Style | SMT |
| Package Width | 11.05mm |
| Packing Method | TR, Embossed Plastic, 13 Inch |
| Rated Current-Max | 1.6A |
| Self Resonance Frequency | 11MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Surface Mount | YES |
| Terminal Finish | Tin/Silver (Sn/Ag) |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.1MHz |
| Tolerance | 20% |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Mainland China |
Where can I find the SPT30L-353MLD datasheet?
SPT30L-353MLD Datasheet DownloadOfficial datasheet from COILCRAFT
What are equivalent replacements for SPT30L-353MLD?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What inductance, current rating, and DC resistance does SPT30L-353MLD provide for power supply designs?
SPT30L-353MLD offers 35 µH nominal inductance with a 1.6 A current rating and a DC resistance of only 0.166 Ω. The 20% tolerance on inductance is typical for general-purpose power inductors and is compatible with most DC-DC converter designs that include feedback regulation, ensuring stable output ripple performance across production units.
What switching frequency range is SPT30L-353MLD suitable for in DC-DC converter filter stages?
SPT30L-353MLD has a self-resonant frequency of 12 MHz, which sets the practical upper frequency limit for its use as a filter inductor. It is best suited for DC-DC converters switching between 100 kHz and a few megahertz, where the 35 µH inductance provides adequate energy storage and ripple attenuation without the inductor entering capacitive behavior near resonance.
How does the powdered iron core of SPT30L-353MLD compare to ferrite for high-current filtering applications?
The powdered iron core of SPT30L-353MLD provides a softer saturation characteristic compared to ferrite, meaning inductance degrades more gradually as current approaches the 1.6 A rating rather than dropping abruptly. This makes it more forgiving in circuits with load transients or peak currents that momentarily exceed the steady-state rating, at the cost of slightly higher core losses at elevated switching frequencies above 1 MHz compared to ferrite alternatives.
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Why Buy from FindMyChip
About COILCRAFT
COILCRAFT is a leading electronic component manufacturer. FindMyChip sources COILCRAFT ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $3.0000 | $3.00 |
| 41+ | $1.1250 | $46.13 |
| 134+ | $1.0500 | $140.70 |
In Stock · 24h Response · Worldwide Shipping
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