SRN4018TA-100M Bourns Inductor (Inductors Precision Moulded) In Stock
Bourns SRN4018TA-100M is a 10 µH ferrite core power inductor in a compact 4x4 mm (1616) SMT package with 0.15 Ω DC resistance. Designed for general-purpose power filtering in DC-DC converters and switching regulators requiring low DCR inductors. Available from stock with worldwide shipping.
- Manufacturer
- Bourns
- Package
- Inductors Precision Moulded
- Pin Count
- 2
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- SRN4018TA-100M Datasheet PDF
- Category
- Inductor
- Temp Range
- -55.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 10 µH inductance with only 0.15 Ω DC resistance enabling high-efficiency power conversion in DC-DC converter stages
- Compact 4x4 mm (1616) rectangular ferrite-core construction for dense SMT power supply layouts
- General-purpose power inductor design supporting wide-range switching regulator applications from 1 MHz to 3 MHz
- RoHS-compliant (e3) lead-free construction meeting environmental requirements for modern electronics manufacturing
Applications
The SRN4018TA-100M is designed for use as an output filter inductor in buck converters, boost regulators, and SEPIC topologies where 10 µH inductance and 0.15 Ω DCR are required for efficient power delivery. Its compact 4x4 mm ferrite-core package makes it suitable for space-constrained power supply circuits in portable devices, IoT modules, and industrial sensors. The molded rectangular construction provides good vibration resistance for automotive auxiliary power modules and rugged embedded computing designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 3 |
| Case/Size Code | 1616 |
| Construction | Rectangular |
| Core Material | FERRITE |
| DC Resistance | 0.15Ω |
| Inductance-Nom (L) | 10 µH |
| Inductor Application | POWER INDUCTOR |
| Inductor Type | GENERAL PURPOSE INDUCTOR |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Package Height | 1.8mm |
| Package Length | 4mm |
| Package Style | SMT |
| Package Width | 4mm |
| Packing Method | TR, 13 Inch |
| Rated Current-Max | 1.5A |
| Reference Standard | AEC-Q200 |
| Self Resonance Frequency | 35MHz |
| Shape/Size Description | RECTANGULAR PACKAGE |
| Shielded | YES |
| Special Feature | DCR IS MEASERED AT 20 % TOLERANCE |
| Surface Mount | YES |
| Terminal Finish | Tin (Sn) - with Nickel (Ni) barrier |
| Terminal Placement | DUAL ENDED |
| Terminal Shape | WRAPAROUND |
| Test Frequency | 0.1MHz |
| Tolerance | 20% |
| Package | Inductors Precision Moulded |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8504.50.80.00 |
| Country of Origin | Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What inductance and DC resistance does the SRN4018TA-100M deliver for buck converter output filtering?
The SRN4018TA-100M provides 10 µH nominal inductance with a DC resistance of 0.15 Ω, making it suitable for output filter stages in buck converters switching at 500 kHz to 2 MHz. The low 0.15 Ω DCR minimizes conduction loss, supporting efficient power delivery at output currents up to approximately 1.5 A in typical 5 V to 3.3 V DC-DC converter designs.
What physical dimensions does the SRN4018TA-100M occupy on a PCB and which package code applies?
The SRN4018TA-100M uses the 1616 package code, corresponding to a 4.0 mm x 4.0 mm footprint with a molded rectangular profile approximately 1.8 mm in height. This compact SMT outline fits on dense multilayer power supply PCBs where the total inductor area must be kept below 20 mm².
In which portable and IoT power supply designs does the SRN4018TA-100M provide a practical advantage over wire-wound alternatives?
The SRN4018TA-100M precision-molded ferrite construction delivers more consistent 10 µH inductance across production batches compared to hand-wound alternatives, with tighter tolerance suitable for IoT module regulators running at 1 MHz to 2 MHz where inductance variation above 20% degrades loop stability. Its 4x4 mm SMT body also reduces mounting height to under 2 mm, fitting inside thin portable device enclosures under 5 mm total PCB-to-cover clearance.
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