74437324100 Würth Elektronik Inductor (Other) In Stock
The 74437324100 is a 10 µH powdered iron core power inductor from Würth Elektronik in a 1816 case size with 0.243 Ω DC resistance for switching power supply applications. Its rectangular chip construction supports SMT placement in DC-DC converters and filter stages. Available in stock worldwide with competitive pricing.
- Manufacturer
- Würth Elektronik
- Package
- Other
- Pin Count
- 2
- Lifecycle
- ACTIVE
- Datasheet
- 74437324100 Datasheet PDF
- Category
- Inductor
- Price
- From $1.5419(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 10 µH nominal inductance in compact 1816 case size with low 0.243 Ω DCR for efficient power conversion
- Powdered iron core construction provides good saturation characteristics and reduced core losses at switching frequencies used in DC-DC converters
- RoHS compliant (JESD-609 Code e2) general-purpose power inductor suitable for a wide range of switching regulator topologies
Applications
The 74437324100 power inductor from Würth Elektronik is designed for use in buck, boost, and SEPIC DC-DC converter output filter stages where 10 µH inductance and low DC resistance are required for efficient energy storage and ripple filtering. Its 1816 chip form factor suits high-density SMT power supply designs in industrial automation, computing motherboards, and battery management circuits. The powdered iron core also makes it suitable for EMI filter inductors and common-mode choke input stages in switching power supplies.
Specifications
| YTEOL | 15 |
| Case/Size Code | 1816 |
| Construction | Rectangular |
| Core Material | POWDERED IRON |
| DC Resistance | 0.243Ω |
| Inductance-Nom (L) | 10 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e2 |
| Number of Functions | 1 |
| Package Height | 1.8mm |
| Package Length | 4.45mm |
| Package Style | SMT |
| Package Width | 4.06mm |
| Packing Method | TR, Embossed Plastic, 13 Inch |
| Rated Current-Max | 1.5A |
| Self Resonance Frequency | 23MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Special Feature | INDUCTANCE IS MEASURED AT 10 MILLI AMPERE |
| Surface Mount | YES |
| Terminal Finish | Tin/Copper (Sn/Cu) |
| 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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for 74437324100:
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Frequently Asked Questions
What is the nominal inductance and DC resistance of the 74437324100 and how do these parameters affect buck converter design?
The 74437324100 has a nominal inductance of 10 µH and a DC resistance of 0.243 Ω. In a buck converter, the 10 µH inductance determines the ripple current magnitude at a given switching frequency — higher inductance reduces ripple but requires more physical space. The 0.243 Ω DCR contributes to conduction losses at full load current, so designers should verify total power dissipation across this resistance at peak output current remains within the inductor's rated temperature rise specification.
Why is a powdered iron core used in the 74437324100 and how does it compare to ferrite for power inductor applications?
Powdered iron cores like those used in the 74437324100 offer a distributed air gap that provides a softer saturation characteristic compared to ferrite, meaning inductance degrades gradually rather than abruptly as current increases beyond the saturation point. This makes powdered iron well suited for power inductor applications with high peak currents, such as 5 A to 15 A DC-DC converters, where ferrite cores might saturate sharply and cause large current spikes. Ferrite is typically preferred for high-frequency low-current applications above 1 MHz.
What case size is the 74437324100 and which standard SMT footprint does it use?
The 74437324100 uses a 1816 case size, corresponding to approximately 4.6 mm x 4.1 mm land dimensions in imperial notation (1816 = 0.18 x 0.16 inches). This is a standard rectangular chip inductor footprint compatible with common SMT component libraries in Altium, KiCad, and Cadence. The 1816 size strikes a balance between current-handling capability and board area, making it appropriate for multi-ampere power inductor applications without occupying the larger footprint of 2020 or 2520 case components.
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About Würth Elektronik
Würth Elektronik is a leading electronic component manufacturer. FindMyChip sources Würth Elektronik ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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