RFC0810B-394KE

Inductor, Power, RFC0810 Series, 390 µH, 850 mA, 1.03 A, 0.81 ohm, ± 10%

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Manufacturer: COILCRAFT
Product type: Radial Leaded Power Inductors
Product Range:RFC0810 Series; Inductance:390µH; RMS Current (Irms):850mA; Saturation Current (Isat):1.03A; DC Resistance Max:0.81ohm; Inductance Tolerance:± 10%; SVHC:No SVHC (15-Jan-2
SVHC: No SVHC (25-Jun-2025)
Inductance: 390µH
Product Range: RFC0810 Series
DC Resistance Max: 0.81ohm
RMS Current (Irms): 850mA
Inductance Tolerance: ± 10%
Inductor Construction: Unshielded
Saturation Current (Isat): 1.03A

Delivery and price
Units per pack	150
Price	0.733 €
Current stock	10+
Lead time	30 days

Datasheet

Document 1108-1 

Halogen Free 

AEC Q200 +85°C 

## **– Power Inductors RFC0810 Series** 

- Low cost, high current power inductors 

- 34 inductance values; 33 µH to 18 mH 

- Flame retardant polyolefin wrap to protect the winding. 

## **Core material** Ferrite 

**Terminations** RoHS compliant tin-silver over tin over copper over steel. Other  terminations available at additional cost 

**Environmental** RoHS compliant, halogen free 

**Weight** 2.0 – 2.3 g 

**Ambient temperature** –40°C to +85°C with (40°C rise) I rms current. **Maximum part temperature** +125°C (ambient + temp rise). Derating. **Storage temperature** Component: –40°C to +125°C. Tray or tape packaging: –40°C to +80°C 

**Moisture Sensitivity Level (MSL)** 1 (unlimited floor life at <30°C / 85% relative humidity) 

**Packaging** 150 parts per tray (except parts with 25 mm lead length); Parts with 25 mm lead length: in fanfold tape, 800 parts per box 

**PCB washing** Tested to MIL-STD-202 Method 215 plus an additional aqueous wash. See Doc787_PCB_Washing.pdf. 

Dimensions are in[inches ] 

mm 

**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 1108-1 Revised 11/02/21 

© Coilcraft Inc. 2021 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 1108-2 

Halogen Free AEC Q200 +85°C 

## **– Power Inductors RFC0810 Series** 

|2|**DCR(Ohms) **<br> 3|**Isat(A)**4<br>**Irms(A)**5|
|---|---|---|
|**Inductance**<br> **Part number**1<br>**±10%(µH)**|<br> **SRF typ**<br>**typ   max**<br>**(MHz)**|<br> <br>**10% drop**<br>**20% drop 30% drop**<br>**20°C rise 40°C rise**|
|RFC0810B-333KE<br>33<br>RFC0810B-393KE<br>39<br>RFC0810B-473KE<br>47<br>RFC0810B-563KE<br>56<br>RFC0810B-683KE<br>68|0.065<br>0.075<br>9.0<br>0.070<br>0.085<br>8.7<br>0.080<br>0.095<br>7.5<br>0.110<br>0.125<br>7.3<br>0.120<br>0.140<br>6.3|3.50<br>3.96<br>4.25<br>2.10<br>3.00<br>3.20<br>3.66<br>3.95<br>2.00<br>2.75<br>2.90<br>3.33<br>3.60<br>1.85<br>2.60<br>2.65<br>3.05<br>3.27<br>1.55<br>2.15<br>2.45<br>2.80<br>3.02<br>1.50<br>2.10|
|RFC0810B-823KE<br>82<br>RFC0810B-104KE<br>100<br>RFC0810B-124KE<br>120<br>RFC0810B-154KE<br>150<br>RFC0810B-184KE<br>180|0.160<br>0.185<br>5.2<br>0.185<br>0.210<br>5.0<br>0.210<br>0.240<br>4.9<br>0.280<br>0.325<br>4.1<br>0.310<br>0.355<br>3.8|2.20<br>2.52<br>2.72<br>1.30<br>1.80<br>2.00<br>2.27<br>2.43<br>1.20<br>1.70<br>1.80<br>2.08<br>2.24<br>1.15<br>1.60<br>1.60<br>1.86<br>2.01<br>1.00<br>1.40<br>1.50<br>1.75<br>1.88<br>0.95<br>1.30|
|RFC0810B-224KE<br>220<br>RFC0810B-274KE<br>270<br>RFC0810B-334KE<br>330<br>RFC0810B-394KE<br>390<br>RFC0810B-474KE<br>470|0.400<br>0.460<br>3.0<br>0.460<br>0.530<br>2.9<br>0.520<br>0.600<br>2.6<br>0.705<br>0.810<br>2.4<br>0.795<br>0.915<br>2.2|1.30<br>1.55<br>1.67<br>0.82<br>1.15<br>1.20<br>1.40<br>1.51<br>0.75<br>1.05<br>1.10<br>1.27<br>1.40<br>0.70<br>1.00<br>1.03<br>1.18<br>1.28<br>0.60<br>0.85<br>0.93<br>1.06<br>1.15<br>0.58<br>0.80|
|RFC0810B-564KE<br>560<br>RFC0810B-684KE<br>680<br>RFC0810B-824KE<br>820<br>RFC0810B-105KE<br>1000<br>RFC0810B-125KE<br>1200|0.895<br>1.05<br>2.0<br>1.15<br>1.30<br>1.7<br>1.55<br>1.80<br>1.6<br>1.70<br>1.95<br>1.5<br>2.35<br>2.70<br>1.2|0.84<br>0.97<br>1.06<br>0.55<br>0.75<br>0.78<br>0.90<br>0.96<br>0.48<br>0.66<br>0.70<br>0.82<br>0.87<br>0.40<br>0.57<br>0.64<br>0.73<br>0.78<br>0.38<br>0.54<br>0.58<br>0.66<br>0.71<br>0.33<br>0.46|
|RFC0810B-155KE<br>1500<br>RFC0810B-185KE<br>1800<br>RFC0810B-225KE<br>2200<br>RFC0810B-275KE<br>2700<br>RFC0810B-335KE<br>3300|2.70<br>3.10<br>1.1<br>3.00<br>3.45<br>1.0<br>4.10<br>4.70<br>0.93<br>4.70<br>5.40<br>0.89<br>6.15<br>7.10<br>0.88|0.53<br>0.59<br>0.64<br>0.31<br>0.43<br>0.48<br>0.55<br>0.59<br>0.29<br>0.41<br>0.43<br>0.49<br>0.52<br>0.25<br>0.35<br>0.39<br>0.45<br>0.48<br>0.23<br>0.33<br>0.36<br>0.40<br>0.43<br>0.20<br>0.29|
|RFC0810B-395KE<br>3900<br>7.10<br>8.15<br>0.84<br>RFC0810B-475KE<br>4700<br>8.05<br>9.25<br>0.78<br>RFC0810B-565KE<br>5600<br>9.90<br>11.5<br>0.59<br>RFC0810B-685KE<br>6800<br>11.5<br>13.0<br>0.55<br>RFC0810B-825KE<br>8200<br>15.0<br>17.0<br>0.48||0.33<br>0.37<br>0.40<br>0.185<br>0.26<br>0.31<br>0.35<br>0.37<br>0.180<br>0.25<br>0.28<br>0.31<br>0.33<br>0.150<br>0.22<br>0.26<br>0.28<br>0.31<br>0.145<br>0.205<br>0.23<br>0.26<br>0.28<br>0.130<br>0.180|
|RFC0810B-106KE<br>10,000<br>17.0<br>19.5<br>0.45<br>RFC0810B-126KE<br>12,000<br>21.5<br>24.5<br>0.40<br>RFC0810B-156KE<br>15,000<br>24.5<br>27.0<br>0.36<br>RFC0810B-186KE<br>18,000<br>27.5<br>30.0<br>0.34||0.21<br>0.23<br>0.25<br>0.122<br>0.170<br>0.19<br>0.22<br>0.23<br>0.108<br>0.150<br>0.17<br>0.20<br>0.21<br>0.100<br>0.142<br>0.16<br>0.18<br>0.20<br>0.097<br>0.135|



1. When ordering, please specify **lead length** and **termination** codes: 

## **RFC0810B-186KE** 

**Lead length: A** = 3.6 mm ±0.3 mm (special order) 

   - **B** = 5.0 mm ±0.5 mm 

   - **C** = 7.0 mm ±0.5 mm (special order) 

   - **D** = 8.0 mm ±0.5 mm (special order) 

   - **E** = 10.0 mm ±1.0 mm (special order) 

   - **F** = 25.0 mm ±1.0 mm, packaged in fanfold tape, 800 parts per box (special order) 

- **Termination: E** = RoHS compliant tin-silver over tin over copper over steel. Special order: **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 equivalent. 

4. DC current at 25°C that causes the specified inductance drop from its value without current. Click for temperature derating information. 

5. Current that causes the specified temperature rise from 25°C ambient. This information is for reference only and does not represent absolute maximum ratings. Click for temperature derating information. 

6. Electrical specifications at 25°C. 

**==> picture [118 x 44] intentionally omitted <==**

Document 1108-2 Revised 11/02/21 

© Coilcraft Inc. 2021 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. 

**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 1108-3 

Halogen Free 

AEC Q200 +85°C 

## **– Power Inductors RFC0810 Series** 

## **Typical L vs Current** 

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**----- Start of picture text -----**<br>
100,000<br>10,000 µH<br>10,000<br>3300 µH<br>1000 µH<br>1000<br>330 µH<br>100 µH<br>100<br>33 µH<br>10<br>0.01 0.1 1 10<br>Current (A)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


## **Typical L vs Frequency** 

**==> picture [243 x 184] intentionally omitted <==**

**----- Start of picture text -----**<br>
100,000<br>10,000 µH<br>10,000<br>3300 µH<br>1000 µH<br>1000<br>330 µH<br>100 µH<br>100<br>33 µH<br>10<br>0.01 0.1 1 10<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


**==> picture [118 x 44] intentionally omitted <==**

Document 1108-3 Revised 11/02/21 

**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. 2021 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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