FERD40M45CG-TR

Standard Recovery Diode, 45 V, 40 A, Dual Common Cathode, 500 mV, 275 A

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Manufacturer: STMICROELECTRONICS
Product type: Standard Recovery Rectifier Diodes
SVHC: No SVHC (25-Jun-2025)
No. of Pins: 3Pins
Product Range: -
Qualification: -
Diode Case Style: TO-263 (D2PAK)
Diode Configuration: Dual Common Cathode
Forward Voltage Max: 500mV
Forward Surge Current: 275A
Reverse Recovery Time: -
Average Forward Current: 40A
Operating Temperature Max: 200°C
Repetitive Peak Reverse Voltage: 45V

Delivery and price
Units per pack	5000
Price	0.573 €
Current stock	10+
Lead time	30 days

Datasheet

## **FERD40M45C** 

## Field effect rectifier 

**Datasheet** - **production data** 

**==> picture [187 x 146] intentionally omitted <==**

**----- Start of picture text -----**<br>
A1<br>K<br>A2<br>K<br>K<br>A2<br>A2<br>¢<br>A1 [K] A1<br>TO-220AB D [2] PAK<br>FERD40M45CT FERD40M45CG<br>**----- End of picture text -----**<br>


## **Description** 

This dual rectifier is based on a proprietary technology that achieves the best in class VF/IR for a given silicon surface. 

Packaged in TO-220AB, and D[2] PAK, this device is intended to be used in switch mode power supplies, or automotive applications 

**Table 1. Device summary** 

|IF(AV)|2 x 20 A|
|---|---|
|VRRM|45 V|
|VF(typ)|0.34 V|



## **Features** 

- ST advanced rectifier process 

- Stable leakage current over reverse voltage 

- Low forward voltage drop 

- High frequency operation 

November 2013 

DocID024889 Rev 1 

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This is information on a product in full production. 

_www.st.com_ 

**Characteristics** 

**FERD40M45C** 

## **1 Characteristics** 

**Table 2. Absolute ratings (limiting values, per diode at 25° C, unless otherwise stated)** 

|**Symbol**|**Parameter**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|---|
|VRRM|Repetitive peak reverse voltage|||45|V|
|IF(RMS)|Forward rms current|||40|A|
|IF(AV)|Average forward current,= 0.5|Tc=150° C<br>Tc=140° C|Per diode<br>Per device|20<br>40|A|
|IFSM|Surge non repetitive forward current|tp= 10 ms sinusoidal||275|A|
|Tstg|Storage temperature range|||-65 to + 175|°C|
|Tj|Maximum operating junction<br>temperature(1)|TO-220AB, D2PAK||175|°C|
|||D2PAK (DC forward current without<br>reverse bias, t = 1 hour)||200||
|1.<br>condition to avoid thermal runaway for a<br>dPtot<br>dTj<br>---------------<br>1<br>Rth j<br>a<br>–<br><br><br>------------------------**-**<br>||diode on its own heatsink||||



**Table 3. Thermal resistances** 

|**Symbol**|**Parameter**|**Parameter**|**Value**|**Unit**|
|---|---|---|---|---|
|Rth (j-c)|Junction to case|Per diode<br>Total|1.6<br>1.1|°C/W|
|Rth(c)|Coupling||0.5|°C/W|



When the diodes 1 and 2 are used simultaneously: 

Tj(diode 1) = P(diode1) x Rth(j-c)(Per diode) + P(diode2) x Rth(c). 

**Table 4. Static electrical characteristics (per diode)** 

||**Table 4. Static**|**electrical characteristics(per**|**electrical characteristics(per**|**diode)**||||
|---|---|---|---|---|---|---|---|
|**Symbol**|**Parameter**|**Test Conditions**||**Min.**|**Typ.**|**Max.**|**Unit**|
|IR<br>(1)|Reverse leakage current|Tj= 25° C|VR= VRRM|||650|µA|
|||Tj= 125° C|||25|50|mA|
|VF<br>(2)|Forward voltage drop|Tj= 25° C|IF= 10 A||0.38|0.415|V|
|||Tj= 125° C|||0.34|0.37||
|||Tj= 25° C|IF= 20 A||0.46|0.50||
|||Tj= 125° C|||0.46|0.50||



1. Pulse test: tp = 5 ms,  < 2% 

2. Pulse test: tp = 380 µs,  < 2% 

To evaluate the conduction losses use the following equation: 

P = 0.31 x IF(AV) + 0.0095 IF2(RMS) 

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**Characteristics** 

**Figure 1. Average forward power dissipation versus average forward current (per diode)** 

**Figure 2. Average forward current versus ambient temperature (**  **= 0.5, per diode)** 

**==> picture [462 x 146] intentionally omitted <==**

**----- Start of picture text -----**<br>
16 PF(AV) (W) 25 IF(AV) (A)<br>� = 0.1 � = 0.2 � = 0.5<br>14 � = 0.05 20 Rth(j-a)=Rth(j-c)<br>12 � = 1<br>10 15<br>8<br>10<br>6<br>4 T T<br>5<br>20 I F(AV)  (A) � [=tp/T] tp 0 � [=tp/T] tp T amb  (°C)<br>0 5 10 15 20 25 30 0 25 50 75 100 125 150 175<br>**----- End of picture text -----**<br>


**Figure 3. Relative variation of thermal impedance junction to case versus pulse duration** 

**Figure 4. Reverse leakage current versus reverse voltage applied (typical values, per diode)** 

**==> picture [462 x 147] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.0 Zth(j-c)/Rth(j-c) 1.E+02 IR (mA)<br>0.9<br>0.8 Tj=125°C<br>0.7<br>1.E+01<br>0.6<br>0.5<br>0.4<br>1.E+00<br>0.3<br>0.2 Single pulse<br>0.1 tp (s) Tj=25 ° C VR (V)<br>0.0 1.E-01<br>1.E-04 1.E-03 1.E-02 1.E-01 1.E+00 0 5 10 15 20 25 30 35 40 45<br>**----- End of picture text -----**<br>


**Figure 5. Junction capacitance versus reverse voltage applied (typical values, per diode)** 

**Figure 6. Forward voltage drop versus forward current (typical values, per diode)** 

**==> picture [462 x 146] intentionally omitted <==**

**----- Start of picture text -----**<br>
10000 C (pF) 100.0 IF (A)<br>F=1MHz<br>Vosc=30mVRMS<br>T j =25°C<br>10.0<br>1000 T j =125°C T j =25°C<br>1.0<br>VR (V) VF (V)<br>100 0.1<br>1 10 100 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.55 0.60 0.65<br>**----- End of picture text -----**<br>


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**Characteristics** 

**FERD40M45C** 

**Figure 7. Thermal resistance junction to ambient versus copper surface under tab** 

**(typical values)** 

**==> picture [214 x 140] intentionally omitted <==**

**----- Start of picture text -----**<br>
80 Rth(j-a) (°C/W)<br>70 Ecopper thickness: 35 µmpoxy printed circuit board FR4, D²PAK<br>60<br>50<br>40<br>30<br>20<br>10<br>S(Cu) (cm²)<br>0<br>0 5 10 15 20 25 30 35 40<br>**----- End of picture text -----**<br>


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**Package Information** 

## **2 Package Information** 

- Epoxy meets UL94,V0 

- Cooling method: by conduction (C) 

- Recommended torque value: 0.4 to 0.6 N·m (TO-220AB) 

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK[®] packages, depending on their level of environmental compliance. ECOPACK[®] specifications, grade definitions and product status are available at: _www.st.com_ . ECOPACK[®] is an ST trademark. 

## **Figure 8. TO-220AB dimension definitions** 

**==> picture [195 x 208] intentionally omitted <==**

**----- Start of picture text -----**<br>
E A<br>Resin gate ∅ P F<br>0.5 mm max.<br>protrusion [(1)] Q<br>H1<br>D D1<br>L20 L30<br>b1 L1 J1<br>L<br>b<br>e Resin gate c<br>0.5 mm max.<br>protrusion [(1)]<br>e1<br>(1) Resin gate position accepted in each of the two<br>position shown as well as the symmetrical opposites<br>**----- End of picture text -----**<br>


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**Package Information** 

**Table 5. TO-220AB dimension values** 

||**Table 5. TO-220AB dimension values**|**Table 5. TO-220AB dimension values**|**Table 5. TO-220AB dimension values**|**Table 5. TO-220AB dimension values**|
|---|---|---|---|---|
|**Ref.**|**Dimensions**||||
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.17|0.18|
|b|0.61|0.88|0.024|0.035|
|b1|1.14|1.70|0.045|0.067|
|c|0.48|0.70|0.019|0.027|
|D|15.25|15.75|0.60|0.62|
|D1|1.27 typ.||0.05 typ.||
|E|10|10.40|0.39|0.41|
|e|2.40|2.70|0.094|0.106|
|e1|4.95|5.15|0.19|0.20|
|F|1.23|1.32|0.048|0.052|
|H1|6.20|6.60|0.24|0.26|
|J1|2.40|2.72|0.094|0.107|
|L|13|14|0.51|0.55|
|L1|3.50|3.93|0.137|0.154|
|L20|16.40 typ.||0.64 typ.||
|L30|28.90 typ.||1.13 typ.||
|P|3.75|3.85|0.147|0.151|
|Q|2.65|2.95|0.104|0.116|



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**Package Information** 

## **Figure 9. D[2] PAK dimension definitions** 

**==> picture [184 x 227] intentionally omitted <==**

**----- Start of picture text -----**<br>
A<br>E<br>C2<br>L2<br>D<br>L<br>L3<br>A1<br>B2<br>C R<br>B<br>G<br>A2<br>M<br>*<br>V2<br>* FLAT ZONE NO LESS THAN 2mm<br>**----- End of picture text -----**<br>


**Table 6. D[2] PAK dimension values** 

||**Table 6. D2PAK dimension values**|**Table 6. D2PAK dimension values**|**Table 6. D2PAK dimension values**|**Table 6. D2PAK dimension values**|
|---|---|---|---|---|
|**Ref.**|**Dimensions**||||
||**Millimeters**||**Inches**||
||**Min.**|**Max.**|**Min.**|**Max.**|
|A|4.40|4.60|0.173|0.181|
|A1|2.49|2.69|0.098|0.106|
|A2|0.03|0.23|0.001|0.009|
|B|0.70|0.93|0.027|0.037|
|B2|1.14|1.70|0.045|0.067|
|C|0.45|0.60|0.017|0.024|
|C2|1.23|1.36|0.048|0.054|
|D|8.95|9.35|0.352|0.368|
|E|10.00|10.40|0.393|0.409|
|G|4.88|5.28|0.192|0.208|
|L|15.00|15.85|0.590|0.624|
|L2|1.27|1.40|0.050|0.055|
|L3|1.30|1.75|0.051|0.069|
|M|2.29|2.79|0.090|0.110|
|R|0.40 typ.||0.016 typ.||
|V2|0°|8°|0°|8°|



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**Package Information** 

## **Figure 10. D[2] PAK footprint (dimensions in mm)** 

**==> picture [210 x 122] intentionally omitted <==**

**----- Start of picture text -----**<br>
16.90<br>12.2 5.08<br>2.54<br>1.60<br>3.50<br>9.75<br>**----- End of picture text -----**<br>


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**Ordering Information** 

## **3 Ordering Information** 

**Table 7. Ordering information** 

|**Order code**|**Marking**|**Package**|**Weight**|**Base qty**|**Delivery mode**|
|---|---|---|---|---|---|
|FERD40M45CT|FERD40M45CT|TO-220AB|2.2 g|50|Tube|
|FERD40M45CG-TR|FERD40M45CG|D2PAK|1.8 g|500|Tape and reel|



## **4 Revision history** 

**Table 8. Document revision history** 

|**Date**|**Revision**|**Description of Changes**|
|---|---|---|
|13-Nov-2013|1|Initial release|



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