SD54-184KLC

Document 427-1 

## **– SMT Power Inductors SD54 Series** 

- Rugged, cost-effective power inductors 

- Excellent current handling; low DCR 

- Values greater than 47 µH are 10% tolerance 

## **Core material** Ferrite 

**Terminations** RoHS compliant tin-silver over tin over nickel over silver. **Weight** 0.35 – 0.43 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. Tape and reel packaging: –40°C to +80°C 

**Resistance to soldering heat** Max three 40 second reflows at +260°C, parts cooled to room temperature between cycles 

**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** 400/7″ reel; 1500/13″ reel; Plastic tape: 12 mm wide, 0.4 mm thick, 8 mm pocket spacing, 4.7 mm pocket depth 

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

|**Part**|**Inductance**2|**DCR**|**DCR(mOhm) **|**SRF typ**3||**Isat(A)**4||**Irms(A)**5|**Irms(A)**5|
|---|---|---|---|---|---|---|---|---|---|
|**number**1|**(µH)**|**nom  max**||**(MHz)**|**10% drop 20% dro**|**20% drop 30% dro**|**30% drop**|**20°C rise 40°C rise**||
|SD54-103ML_|10 ±20%|71.5|71.5<br>78.6|28|2.0|2.3|2.4|1.7|2.3|
|SD54-123ML_|12 ±20%|80.2|80.2<br>88.2|26|1.8|2.0|2.2|1.6|2.2|
|SD54-153ML_|15 ±20%|94.0|94.0<br>103|23|1.5|1.8|1.9|1.5|2.1|
|SD54-183ML_|18 ±20%|103|113|21|1.4|1.6|1.8|1.4|2.0|
|SD54-223ML_|22 ±20%|119|130|19|1.3|1.5|1.6|1.3|1.8|
|SD54-273ML_|27 ±20%|134|147|18|1.2|1.4|1.4|1.2|1.7|
|SD54-333ML_|33 ±20%|150|165|16|1.1|1.2|1.3|1.2|1.6|
|SD54-393ML_|39 ±20%|195|214|13|1.0|1.1|1.2|1.0|1.4|
|SD54-473ML_|47 ±20%|222|244|12|0.92|1.0|1.1|0.97|0.97<br>1.3|
|SD54-563KL_|56 ±10%|251|276|11|0.83|0.96|1.0|0.92|0.92<br>1.3|
|SD54-683KL_|68 ±10%|335|368|9.3|0.76|0.88|0.95|0.80|0.80<br>1.1|
|SD54-823KL_|82 ±10%|379|416|8.4|0.69|0.80|0.85|0.74|0.74<br>1.1|
|SD54-104KL_|100 ±10%|503|553|7.4|0.62|0.72|0.77|0.64|0.64<br>0.88|
|SD54-124KL_|120 ±10%|579|636|7.0|0.56|0.66|0.71|0.58|0.58<br>0.80|
|SD54-154KL_|150 ±10%|654|719|6.3|0.51|0.60|0.64|0.57|0.57<br>0.77|
|SD54-184KL_|180 ±10%|874|961|5.5|0.46|0.53|0.57|0.49|0.49<br>0.67|
|SD54-224KL_|220 ±10%|996|1095|5.0|0.43|0.50|0.54|0.47|0.47<br>0.66|



## 1. When ordering, please specify **packaging** code: 

## **SD54-224KLC** 

**Packaging: C** = 7″ machine-ready reel. EIA-481 embossed plastic tape (400 parts per full reel). Quantities less than full reel available: in tape (not machine ready) or with leader and trailer ($25 charge). 

   - **D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (1500 parts per full reel). 

   - **B** = In an effort to simplify our part numbering system, Coilcraft is eliminating the need for multiple packaging codes. When ordering, simply change the last letter of your part number from B to C. 

2. Inductance measured at 100 kHz, 0.1 Vrms, 0 Adc using an Agilent/HP 4284A impedance analyzer or equivalent. 

3. SRF measured using Agilent/HP 8753D network analyzer and Coilcraft SMD -D test fixture. 

4. DC current at which the inductance drops the specified amount from its value without current. 

5. Current that causes the specified rise from 25°C ambient. 

6. Electrical specifications at 25°C. 

Refer to Doc 362 “Soldering Surface Mount Components” before soldering. 

**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 427-1 Revised 03/31/20 

© Coilcraft Inc. 2020 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 427-2 

## **SMT Power Inductors – SD54 Series** 

## **Typical L vs Current** 

**==> picture [242 x 185] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>220 µH<br>100 µH<br>100<br>22 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 [243 x 185] intentionally omitted <==**

**----- Start of picture text -----**<br>
1000<br>220 µH<br>100 µH<br>100<br>22 µH<br>10 10 µH<br>1<br>0.01 0.1 1 10<br>Frequency (MHz)<br>Inductance (µH)<br>**----- End of picture text -----**<br>


## **Irms Derating** 

**==> picture [242 x 185] intentionally omitted <==**

**----- Start of picture text -----**<br>
120<br>110<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>-40 -20 0 20 40 60 80 100 120 140<br>Ambient temperature (°C)<br>Irms<br>Percent of rated<br>25°C<br>**----- End of picture text -----**<br>


**==> picture [222 x 263] intentionally omitted <==**

**==> picture [81 x 14] intentionally omitted <==**

**----- Start of picture text -----**<br>
Dimensions are in [inches ]<br>mm<br>**----- End of picture text -----**<br>


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

Document 427-2 Revised 03/31/20 

**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. 2020 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.