37951C.

## **www.murata-ps.com** 

## **3700 Series** 

Flat Coil SM Power Inductors 

## **SELECTION GUIDE** 

## **FEATURES** 

HS compliant 

gh current, low DCR 

rface mount 

~~DO~~ k & place compatible | STD-020D refl ow 

> | ckward compatible with Sn/Pb soldering systems 

## **DESCRIPTION** 

The 3700 series is a range of surface mount, fl at-coil wound power inductors. They are ideally suited for use where high current and low loss is essential, such as in laptop computers and plasma screens. 

|**SELECTION GUIDE**|**SELECTION GUIDE**|**SELECTION GUIDE**|**SELECTION GUIDE**|**SELECTION GUIDE**|**SELECTION GUIDE**|
|---|---|---|---|---|---|
|Order Code|Inductance<br>(100kHz,0.1VAC)|DC<br>Current1|Saturation<br>Current2|DC<br>Resistance|Height|
||±10%|Max.|Typ.|Max.||
||μH|A|A|mΩ||
|**37301C**|0.30±20%|19.5|39|0.9|A|
|**37501C**|0.50±20%|19.5|30|1.0|A|
|**37951C**|0.95±20%|18.0|25|1.3|B|
|**37112C**|1.1|14.5|20|2.2|A|
|**37142C**|1.4|16.0|22|1.9|B|
|**37222C**|2.2|11.5|15|4.0|A|
|**37242C**|2.4|12.0|16.5|3.0|B|
|**37302C**|3.0|9.0|13|4.8|A|
|**37392C**|3.9|10.0|12|4.2|B|



## **ABSOLUTE MAXIMUM RATINGS** 

Operating temperature range -40°C to +130°C Storage temperature range -40°C to +150°C 

**SOLDERING INFORMATION[3]** ~~re~~ Peak refl ow temperature 245°C Pin fi nish Pure tin dip Moisture sensitivity level 1 

## ~~|~~ **PACKAGING INFORMATION** Height A Height B Tape & Reel 

Height A Height B 700 per reel 550 per reel 

All specifi cations typical at TA=25°C 

- 1 The maximum DC Current is the value at which the inductance falls to 80% of its zero current value, or when its temperature rise reaches 40°C, whichever is sooner. 

- 2 Saturation current is the continuous current at 20°C ambient at which the inductance falls to 80% of its zero current value. 

- 3 For further information, please visit www.murata-ps.com/rohs 

For full details go to tg **www.murata-ps.com/rohs** ~~©~~ 

**www.murata-ps.com/support** 

**KMP_3700C_A02** Page 1 of 3 

**3700 Series** 

Flat Coil SM Power Inductors 

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INDUCTANCE Vs CURRENT<br>10<br>3.9μH<br>2.4μH<br>1.4μH<br>1 0.95μH<br>0.3μH<br>0.1<br>0.1 1 10 100<br>Current, I DC  (A)<br>Inductance, L (μH)<br>**----- End of picture text -----**<br>


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TEMPERATURE Vs CURRENT<br>50<br>3.9μH 2.4μH<br>1.4μH<br>0.95μH<br>0.3μH<br>40<br>30<br>20<br>10<br>0<br>0 5 10 15 20 25 30<br>Current, I DC  (A)<br>Temperature rise above ambient, t (ºC)<br>**----- End of picture text -----**<br>


**www.murata-ps.com/support** 

**KMP_3700C_A02** Page 2 of 3 

**3700 Series** 

Flat Coil SM Power Inductors 

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PACKAGE SPECIFICATIONS<br>MECHANICAL DIMENSIONS RECOMMENDED FOOTPRINT DETAILS<br>14.5 (0.571) Max.<br>37XXXC<br>XYYWW 7.5±1.5 (0.295±0.059) 12.8<br>(0.504)<br>4.4<br>(0.173)<br>H 2.4±0.5 (0.094±0.02)<br>11.5 (0.453) Max. Height A: 5.8 (0.228) Max. 11.0±1.5 (0.433±0.06) 10.4<br>Height B: 6.8 (0.268) Max. (0.409)<br>All dimensions in mm (inches).<br>Package weight: 2.6g Typ. (Height A), 3.4g Typ. (Height B) All dimensions in mm (inches).<br>**----- End of picture text -----**<br>


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TAPE & REEL SPECIFICATIONS<br>TAPE OUTLINE DIMENSIONS<br>1.75 (0.069)<br>2.0 (0.079) 16.0 (0.630) 4.0 (0.157) 1.5 (0.059) 0.5 (0.020)<br>11.5<br>1.5 (0.059)<br>24.0 (0.453)<br>(0.945) 14.4 (0.567)<br>6.0 Max. (0.236) for height A.<br>Direction of unreeling 7.0 Max. (0.276) for height B.<br>All dimensions in mm (inches).<br>37XXXC GYYWW 37XXXC GYYWW<br>**----- End of picture text -----**<br>


## **TAPE & REEL SPECIFICATIONS** 

Murata Power Solutions, Inc. 

11 Cabot Boulevard, Mansfi eld, MA 02048-1151 U.S.A. ISO 9001 and 14001 REGISTERED 

Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifi cations are subject to change without notice. _**© 2011 Murata Power Solutions, Inc.**_ 

**www.murata-ps.com/support** 

**KMP_3700C_A02** Page 3 of 3