RFS1412-333KE
Inductor, RFS1412 Series, 33 µH, 4.5 A, 3.4 A, 0.047 ohm, ± 10%
- Manufacturer: COILCRAFT
- Product type: Radial Leaded Power Inductors
- Product Range:RFS1412 Series; Inductance:33µH; RMS Current (Irms):4.5A; Saturation Current (Isat):3.4A; DC Resistance Max:0.047ohm; Inductance Tolerance:± 10%; SVHC:No SVHC (15-Jan-2019
- SVHC: No SVHC (25-Jun-2025)
- Inductance: 33µH
- Product Range: RFS1412 Series
- DC Resistance Max: 0.047ohm
- RMS Current (Irms): 4.5A
- Inductance Tolerance: ± 10%
- Inductor Construction: Shielded
- Saturation Current (Isat): 3.4A
| Delivery and price | |
|---|---|
| Units per pack | 169 |
| Price | 1.12 € |
| Current stock | 10+ |
| Lead time | 30 days |
Document 1003-1 ## **– Shielded Power Inductors RFS1412** - Low cost, high current power inductors - 10 µH to 10 mH inductance range; most at 10% tolerance ## **Core material** Ferrite **Terminations** Tin-silver (96.5/3.5) over tin over copper over steel. Other terminations available at additional cost. **Weight** 6.0 – 7.0 g **Ambient temperature** –40°C to +85°C with I rms current, +85°C to +125°C with derated current **Storage temperature** Component: –40°C to +85°C. Tray packaging: –40°C to +80°C **Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) **Failures in Time (FIT) / Mean Time Between Failures (MTBF)** 38 per billion hours / 26,315,789 hours, calculated per Telcordia SR-332 **Packaging** 125 parts per tray **PCB washing** Tested with pure water or alcohol only. For other solvents, see Doc787_PCB_Washing.pdf. ||**Inductance**2|**DCR**|**DCR(Ohms)**|**SRF typ**3||**Isat(A)**4||**Irms**|**rms(A)**5| |---|---|---|---|---|---|---|---|---|---| |**Part number**1|**(µH)**|**typ max**||**(MHz)**|**10% drop**|**20% drop**|**30% drop**|**20°C rise 40°C rise**|**20°C rise 40°C rise**| |RFS1412-103ME|10 ±20%|0.016|0.018|36|6.2|7.4|8.1|5.80|7.90| |RFS1412-153LE|15 ±15%|0.019|0.022|21|5.0|6.1|6.8|5.05|6.90| |RFS1412-223KE|22 ±10%|0.029|0.032|13|4.4|5.2|5.7|4.05|5.60| |RFS1412-333KE|33 ±10%|0.043|0.047|8.7|3.4|4.1|4.6|3.25|4.50| |RFS1412-393KE|39 ±10%|0.060|0.066|7.7|3.1|3.9|4.3|2.85|3.90| |RFS1412-473KE|47 ±10%|0.066|0.072|6.7|3.0|3.5|3.9|2.65|3.65| |RFS1412-104KE|100 ±10%|0.083|0.091|5.1|2.0|2.4|2.6|2.35|3.25| |RFS1412-224KE|220 ±10%|0.190|0.200|3.3|1.3|1.6|1.8|1.55|2.35| |RFS1412-564KE|560 ±10%|0.484|0.508|1.8|0.82|1.0|1.1|0.92|1.28| |RFS1412-105KE|1000 ±10%|1.01|1.06|1.3|0.63|0.76|0.84|0.64|0.86| |RFS1412-106KE|10000 ±10%|9.58|9.87|0.36|0.20|0.25|0.27|0.20|0.28| 1. When ordering, please specify **termination** code: | **RFS1412-105KE** **Termination: E** = Tin-silver over tin over copper over steel. **Special order** : **T** = RoHS tin-silver-copper (95.5/4/0.5) or **S** = non-RoHS tin-lead (63/37). 2. Inductance tested at 100 kHz, 0.1 Vrms, 0 Adc on an Agilent/HP 4284A LCR-meter or equivalent. 3. SRF measured using Agilent/HP 4191A or equilvalent. 4. DC current that causes the specified inductance drop from its value without current.. 5. Current that causes the specified temperature rise from 25°C ambient. 6. Electrical specifications at 25°C. **US** +1-847-639-6400 sales@coilcraft.com **UK** +44-1236-730595 sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646 sales@coilcraft.com.tw **China** +86-21-6218 8074 sales@coilcraft.com.cn **Singapore** + 65-6484 8412 sales@coilcraft.com.sg Document 1003-1 Revised 03/10/14 © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information. Document 1003-2 ## **– Shielded Power Inductors RFS1412 Series** ## **Typical L vs Current** **==> picture [242 x 185] intentionally omitted <==** **----- Start of picture text -----**<br> 10000<br>1000 µH<br>1000<br>220 µH<br>100 µH<br>100<br>39 µH<br>10 µH<br>10<br>1<br>0.01 0.1 1 10<br>Current (A)<br>Inductance (µH)<br>**----- End of picture text -----**<br> ## **Typical L vs Frequency** **==> picture [242 x 171] intentionally omitted <==** **----- Start of picture text -----**<br> 10000<br>1000 µH<br>1000<br>220 µH<br>100 µH<br>100<br>39 µH<br>10 µH<br>10<br>1<br>0.1 1 10 100<br>Inductance (µH)<br>**----- End of picture text -----**<br> **Frequency (MHz)** **==> picture [501 x 282] intentionally omitted <==** **----- Start of picture text -----**<br> Irms Derating Dot indicatespin 1<br>120 XXX<br>110<br>100<br>90<br>0.539 ±0.012<br>80 13,7 ±0,3<br>70<br>60<br>0.461±0.012<br>50 11,7 ±0,3<br>40<br>30 0.189 ±0.02<br>20 4,8 ±0,5<br>10 0.0310,80 � 0.295 ±0.0207,5 ±0,5<br>0<br>-40 -20 0 20 40 60 80 100 120 140<br>0.054<br>�<br>Ambient temperature (°C) 1,37<br>0.295 ±0.020<br>7,5 ±0,5<br>Recommended<br>Dimensions are in [inches ] PC Board Layout<br>mm<br>Irms<br>Percent of rated<br>25°C<br>**----- End of picture text -----**<br> ## **Irms Derating** **==> picture [117 x 44] intentionally omitted <==** Document 1003-2 Revised 03/10/14 **US** +1-847-639-6400 sales@coilcraft.com **UK** +44-1236-730595 sales@coilcraft-europe.com **Taiwan** +886-2-2264 3646 sales@coilcraft.com.tw **China** +86-21-6218 8074 sales@coilcraft.com.cn **Singapore** + 65-6484 8412 sales@coilcraft.com.sg © Coilcraft Inc. 2014 This product may not be used in medical or high risk applications without prior Coilcraft approval. Specification subject to change without notice. Please check web site for latest information.
Updated at June 5, 2026
Coilcraft is a globally recognized leader in the design and manufacture of high-performance magnetic components. Renowned for its engineering excellence, reliable delivery, and stringent quality standards, the company provides essential solutions for a wide array of demanding applications, including signal processing, RF, power management, and timing circuits. Our comprehensive portfolio of Coilcraft components is centered on their industry-leading inductor technologies. This encompasses a vast selection of high-efficiency power inductors designed to optimize modern power supply architectures, alongside precision RF inductors engineered to deliver exceptional stability and performance in high-frequency communications and wireless applications. To support complete electromagnetic compatibility and comprehensive circuit design, we also offer a variety of Coilcraft's specialized magnetic solutions. This includes robust common mode chokes and filters for effective EMC and RFI suppression, current sensing transformers, and a selection of inductor kits and assortments that provide design engineers with versatile options for rapid prototyping and development.
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