SLC1175-171MEB

Document 838-1 

## **– Shielded Power Inductors SLC1175** 

The SLC1175 is designed for high-speed switch mode applications requiring low inductance and very high saturation current ratings. While requiring a mere quarter square inch of board space, it can handle saturating current over 100 A. 

This series offers several inductance values not available in other high current series. 

These shielded inductors are ideal for use in multi-phase VRM/VRD regulators and high current/high frequency DC/DC converters. 

|**Inductance**2|**Inductance**2|**DCR(mOhms)**3|**DCR(mOhms)**3|**SRF typ**4|<br> **Isat** **(A)**5|<br> **Isat** **(A)**5|**Irms(A)**6|**Irms(A)**6|**Irms(A)**6|
|---|---|---|---|---|---|---|---|---|---|
|**Part number**1|**±20%(nH)**|**min   max**||**(MHz)**|**10% drop 20% dro**|**20% drop 30% dro**|**30% drop**|**20°C rise 40°C rise**||
|SLC1175-700ME_|70|0.228|0.252|179|83|100|>100|25.5|35.5|
|SLC1175-121ME_|120|0.228|0.252|144|80|84|88|25.5|35.5|
|SLC1175-151ME_|150|0.228|0.252|95|64|70|76|25.5|35.5|
|SLC1175-171ME_|170|0.228|0.252|73|54|60|63|25.5|35.5|
|SLC1175-201ME_|200|0.228|0.252|64|48|53|55|25.5|35.5|
|SLC1175-231ME_|230|0.228|0.252|61|41|46|49|25.5|35.5|
|SLC1175-271ME_|270|0.228|0.252|52|32|37|40|25.5|35.5|
|SLC1175-301ME_|300|0.228|0.252|48|27|31|34|25.5|35.5|



## 1. When ordering, please specify **packaging** code: | **SLC1175-301MEC** 

**Packaging: C** = 7″ machine-ready reel. EIA-481 embossed plastic tape (150 per full reel). 

   - **B** = Less than full reel. In tape, but not machine ready. To have a leader and trailer added ($25 charge), use code letter C instead. 

   - **D** = 13″ machine-ready reel. EIA-481 embossed plastic tape. Factory order only, not stocked (700 per full reel). 

2. Inductance tested at 100 kHz, 0.1 Vrms using an Agilent/HP 4284. 

3. DCR is measured between the two points indicated below. 

**==> picture [99 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
Points used for measuring DCR<br>**----- End of picture text -----**<br>


4. SRF measured using an Agilent/HP 8753ES network analyzer or equivalent. 

## **Core material** Ferrite 

**Environment** RoHS compliant, halogen free 

**Terminations** RoHS compliant matte tin over nickel over copper. Other terminations available at additional cost. 

**Weight** 2.19 – 2.30  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 +125°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** 150/7″ reel, 700/13″ reel; Plastic tape: 24 mm wide, 0.4 mm thick, 12 mm  pocket spacing, 7.62 mm pocket depth 

**PCB washing** Only pure water or alcohol recommended 

5. DC current at which the inductance drops from its value without current. 

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

7. Electrical specifications at 25°C. 

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

Document 838-1 Revised 02/22/11 © Coilcraft Inc. 2011 

Document 838-2 

## **SMT Power Inductors – SLC1175 Series** 

## **L vs Current** 

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

**----- Start of picture text -----**<br>
400<br>300 nH<br>300 270 nH<br>230 nH<br>200 nH<br>200<br>170 nH<br>150 nH<br>120 nH<br>100<br>90<br>80<br>70 nH<br>70<br>60<br>50<br>40<br>0.1 1 10 100<br>Current (A)<br>Inductance (nH)<br>**----- End of picture text -----**<br>


## **ESR vs Frequency** 

**==> picture [242 x 176] intentionally omitted <==**

## **Irms Derating** 

## **L vs Frequency** 

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

**----- Start of picture text -----**<br>
400<br>300 nH<br>300 270 nH<br>230 nH<br>200 nH<br>200 170 nH<br>150 nH<br>120 nH<br>100<br>90<br>70 nH<br>80<br>70<br>60<br>50<br>40<br>0.1 1 10 100<br>Frequency (MHZ)<br>Inductance (nH)<br>**----- End of picture text -----**<br>


**==> picture [241 x 262] intentionally omitted <==**

**==> picture [81 x 15] intentionally omitted <==**

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


Document 838-2 Revised 02/22/11 

**==> picture [82 x 33] intentionally omitted <==**