ER32/6/25-3C95

_**FERROXCUBE**_ 

**ER32/6/25** Planar ER cores and accessories 

Supersedes data of September 2004 2008 Sep 01 

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Ferroxcube 

## Planar ER cores and accessories 

## ER32/6/25 

## **CORE SETS** 

## **Effective core parameters** 

|**SYMBOL**|**PARAMETER**|**VALUE**|**UNIT**|
|---|---|---|---|
|Σ(I/A)|core factor (C1)|0.270|mm−1|
|Ve|effective volume|5400|mm3|
|Ie|effective length|38.2|mm|
|Ae|effective area|141|mm2|
|Amin|minimum area|121|mm2|
|m|mass of core half|≈16|g|



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handbook, halfpage 2.9  [+] − [0] 0.25 6.0<br>± 0.127<br>32.1  [+] − [0.55] 0.45<br>27.2 ± 0.4<br>12.4 ± 0.15<br>25.4<br>± 0.4<br>MFP075<br>R1.0 (4×)<br>Dimensions in mm.<br>Fig.1  ER32/6/25 core half.<br>**----- End of picture text -----**<br>


**Core sets for general purpose transformers and power applications** Clamping force for AL measurements, 50 ± 20 N. 

|**GRADE**|**AL**<br>**(nH)**|µ**e**|**AIR GAP**<br>**(**µ**m)**|**TYPE NUMBER**|
|---|---|---|---|---|
|3C92|5700±25 %|≈1220|≈0|ER32/6/25-3C92-S|
|3C93|6600±25 %|≈1420|≈0|ER32/6/25-3C93-S|
|3C95|9640±25 %|≈2080|≈0|ER32/6/25-3C95-S|
|3C96|7160±25 %|≈1540|≈0|ER32/6/25-3C96-S|
|3F3|7160±25 %|≈1540|≈0|ER32/6/25-3F3-S|



## **Properties of core sets under power conditions** 

|**GRADE**|**B (mT) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|**CORE LOSS (W) at**|
|---|---|---|---|---|---|---|
||**H = 250 A/m;**<br>**f = 25 kHz;**<br>**T = 100**°**C**|**f = 100 kHz;**<br>**= 100 mT;**<br>**T = 100**°**C**<br>**B**ˆ|**f = 100 kHz;**<br>**= 200 mT;**<br>**T = 25**°**C**<br>**B**ˆ|**f = 100 kHz;**<br>**= 200 mT;**<br>**T = 100** °**C**<br>**B**ˆ|**f = 400 kHz;**<br>**= 50 mT;**<br>**T = 100**°**C**<br>**B**ˆ|**f = 500 kHz;**<br>**= 50 mT;**<br>**T = 100**°**C**<br>**B**ˆ|
|3C92|≥370|≤0.45|−|≤3.0|−|−|
|3C93|≥320|≤0.45(1)|−|≤3.0(1)|−|−|
|3C95|≥320|−|≤3.5|≤3.33|−|−|
|3C96|≥340|≤0.3|−|≤2.2|−|≤1.9|
|3F3|≥300|≤0.65|−|−|≤1.0|−|



1. Measured at 140 °C. 

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Ferroxcube 

## Planar ER cores and accessories 

## ER32/6/25 

## **MOUNTING INFORMATION** 

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32.85 min<br>26.6 max<br>12.7 min<br>26.0<br>min<br>R0.8 max (8×) MFP081<br>**----- End of picture text -----**<br>


Fig.2  Recommended PCB cut-out for ER32/6/25 cores. 

## **Winding data for ER32/6/25 planar core** 

|**WINDING AREA**<br>**(mm2)**|**AVERAGE TRACK LENGTH**<br>**(mm)**|**FOOTPRINT AREA**<br>**(mm2)**|
|---|---|---|
|41.1|62.2|828|



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Ferroxcube 

ER32/6/25 

Planar ER cores and accessories 

## **DATA SHEET STATUS DEFINITIONS** 

|**DATA SHEET**<br>**STATUS**|**PRODUCT**<br>**STATUS**|**DEFINITIONS**|
|---|---|---|
|Preliminary<br>specification|Development|This data sheet contains preliminary data. Ferroxcube reserves the right to<br>make changes at any time without notice in order to improve design and<br>supplythe best possible product.|
|Product specification|Production|This data sheet contains final specifications. Ferroxcube reserves the right<br>to make changes at any time without notice in order to improve design and<br>supplythe best possible product.|



## **DISCLAIMER** 

 **Life support applications** These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Ferroxcube customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Ferroxcube for any damages resulting from such application. 

## **PRODUCT STATUS DEFINITIONS** 

|**STATUS**|**INDICATION**|**DEFINITION**|
|---|---|---|
|**Prototype**||These are products that have been made as development samples for the purposes of<br>technical evaluation only. The data for these types is provisional and is subject to<br>change.|
|**Design-in**||These products are recommended for new designs.|
|**Preferred**||These products are recommended for use in current designs and are available via our<br>sales channels.|
|**Support**||These products are**not**recommended for new designs and may not be available<br>through all of our sales channels. Customers are advised to check for availability.|



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