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 70CRU02PBF
Vishay High Power Products
Ultrafast Rectifier, 2 x 35 A FRED PtTM
FEATURES
Base common cathode 2
* * * * * *
TO-218
1 3 Anode 2 Anode 2 1 Common cathode
Two common-cathode diodes Available Ultrafast reverse recovery Ultrafast reverse recovery current shape RoHS* COMPLIANT Low forward voltage drop Low leakage current Optimized for power conversion: welding and industrial SMPS applications * Up to 175 C operating junction temperature * Lead (Pb)-free ("PbF" suffix) * Designed and qualified for industrial level
DESCRIPTION
The 70CRU02 integrates two state of the art Vishay HPP ultrafast recovery rectifiers in the common-cathode configuration. The planar structure of the diodes, and the platinum doping life-time control, provide a ultrasoft recovery current shape, together with the best overall performance, ruggedness and reliability characteristics. These devices are thus intended for high frequency applications in which the switching energy is designed not to be predominant portion of the total energy, such as in the output rectification stage of welding machines, SMPS, dc-to-dc converters. Their extremely optimized stored charge and low recovery current reduce both over-dissipation in the switching elements (and snubbers) and EMI/RFI.
PRODUCT SUMMARY
trr IF(AV) at TC = 145 C VR 28 ns 2 x 35 A 200 V
ABSOLUTE MAXIMUM RATINGS
PARAMETER Continuous forward current per diode Cathode to anode voltage Single pulse forward current per diode Maximum power dissipation per module Operating junction and storage temperatures SYMBOL IF(AV) VR IFSM PD TJ, TStg TC = 25 C TC = 100 C TEST CONDITIONS TC = 145 C MAX. 35 200 300 67 - 55 to 175 UNITS A V A W C
ELECTRICAL SPECIFICATIONS PER DIODE (TJ = 25 C unless otherwise specified)
PARAMETER Breakdown voltage, blocking voltage SYMBOL VBR, VR VF TEST CONDITIONS IR = 60 A IF = 35 A Forward voltage IF = 35 A, TJ = 125 C IF = 35 A, TJ = 175 C Reverse leakage current Junction capacitance Series inductance IR CT LS VR = VR rated TJ = 150 C, VR = VR rated VR = 200 V Measured from A-lead to K-lead 5 mm from package body MIN. 200 TYP. 0.95 0.9 0.85 50 10 MAX. 1.09 1.0 0.9 60 2 A mA pF nH V UNITS
* Pb containing terminations are not RoHS compliant, exemptions may apply Document Number: 94509 Revision: 21-Jul-08 For technical questions, contact: diodes-tech@vishay.com www.vishay.com 1
70CRU02PBF
Vishay High Power Products
Ultrafast Rectifier, 2 x 35 A FRED PtTM
DYNAMIC RECOVERY CHARACTERISTICS PER DIODE (TJ = 25 C unless otherwise specified)
PARAMETER SYMBOL TJ = 25 C Reverse recovery time trr TJ = 125 C TJ = 25 C TJ = 125 C Peak recovery current IRRM Qrr TJ = 25 C TJ = 125 C TJ = 25 C TJ = 125 C IF = 35 A VRR = 100 V dIF/dt = 200 A/s TEST CONDITIONS IF = 1 A VR = 30 V dIF/dt = 200 A/s MIN. TYP. 34 26 49 3.7 8.2 48.7 202 MAX. 28 A ns UNITS
Reverse recovery charge
C
THERMAL - MECHANICAL SPECIFICATIONS
PARAMETER Thermal resistance, junction to case Thermal resistance, case to heatsink Weight Mounting torque Marking device Case style TO-218 per diode both legs SYMBOL RthJC RthCS Mounting surface, flat, smooth and greased TEST CONDITIONS MIN. 1.2 (10) TYP. 0.8 0.2 5.5 0.2 MAX. 0.9 0.45 2.4 (20) g oz. Nm (lbf in) K/W UNITS
70CRU02
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 94509 Revision: 21-Jul-08
70CRU02PBF
Ultrafast Rectifier, 2 x 35 A FRED PtTM
Vishay High Power Products
1000
(A)
1000
T J = 175C
100
125C
Reverse Current - I
R
10 1
25C
(A)
0.1 0.01 0 50 100 150 200
Reverse Voltage - VR (V)
Instantaneous Forward Current - I
F
100
Fig. 2 - Typical Values of Reverse Current vs. Reverse Voltage
Junction Capacitance - C T (pF)
T = 175C J
1000
T = 25C
J
10
T = 125C J T = 25C J
100
1 0 0.4 0.8 1.2 1.6 2 2.4 2.8 3.2 3.6 4
10 1 10 100 1000
Reverse Voltage - VR (V)
Forward Voltage Drop - VFM (V)
Fig. 1 - Maximum Forward Voltage Drop Characteristics (Per Diode)
Fig. 3 - Typical Junction Capacitance vs. Reverse Voltage
1
(C/W)
thJC
Thermal Impedance Z
PDM
0.1
Single Pulse (Thermal Resistance)
Notes:
t1 t2 1. Duty factor D = t1/ t2 2. Peak Tj = Pdm x ZthJC + Tc
0.01 0.0001
0.001 0.01 0.1 t1, Rectangular Pulse Duration (Seconds)
1
Fig. 4 - Maximum Thermal Impedance ZthJC Characteristics (Per Diode)
Document Number: 94509 Revision: 21-Jul-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com 3
70CRU02PBF
Vishay High Power Products
Ultrafast Rectifier, 2 x 35 A FRED PtTM
80
180
Allowable Case Temperature (C)
70 60
DC
trr ( ns )
If = 35A Vrr = 100V
170 160 150 140 130 120 Square wave (D = 0.50) 110 Rated Vr applied 100 90 see note (1) 80 0 10 20 30 40 50 60
Average Forward Current - I F(AV) (A)
50 40 30 20 10 0 100
Tj = 125C
Tj = 25C
1000
di F /dt (A/s )
Fig. 5 - Maximum Allowable Case Temperature vs. Average Forward Current
Fig. 7 - Typical Reverse Recovery Time vs. dIF/dt
600
50
500
Average Power Loss ( W )
If = 35A Vrr = 100V
40
400
RMS Limit
Qrr ( nC )
Tj = 125C
30 20 10 0 0 10 20 30 40 50 60
Average Forward Current - I F(AV) (A)
D = 0.20 D = 0.25 D = 0.33 D = 0.50 D = 0.75 DC
300
200
Tj = 25C
100
0 100
di F /dt (A/s )
1000
Fig. 6 - Forward Power Loss Characteristics Note Formula used: TC = TJ - (Pd + PdREV) x RthJC; Pd = Forward power loss = IF(AV) x VFM at (IF(AV)/D) (see fig. 6); PdREV = Inverse power loss = VR1 x IR (1 - D); IR at VR1 = Rated VR
Fig. 8 - Typical Stored Charge vs. dIF/dt
(1)
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For technical questions, contact: diodes-tech@vishay.com
Document Number: 94509 Revision: 21-Jul-08
70CRU02PBF
Ultrafast Rectifier, 2 x 35 A FRED PtTM
VR = 200 V
Vishay High Power Products
0.01 L = 70 H D.U.T.
dIF/dt adjust
D G IRFP250 S
Fig. 9 - Reverse Recovery Parameter Test Circuit
(3)
IF
0
trr ta tb
Qrr
(2)
(4)
IRRM
0.5 IRRM dI(rec)M/dt (5) 0.75 IRRM
(1) dIF/dt (1) dIF/dt - rate of change of current through zero crossing (2) IRRM - peak reverse recovery current (3) trr - reverse recovery time measured from zero crossing point of negative going IF to point where a line passing through 0.75 IRRM and 0.50 IRRM extrapolated to zero current. (4) Qrr - area under curve defined by trr and IRRM Qrr = trr x IRRM 2
(5) dI(rec)M/dt - peak rate of change of current during tb portion of trr
Fig. 10 - Reverse Recovery Waveform and Definitions
Document Number: 94509 Revision: 21-Jul-08
For technical questions, contact: diodes-tech@vishay.com
www.vishay.com 5
70CRU02PBF
Vishay High Power Products
ORDERING INFORMATION TABLE
Ultrafast Rectifier, 2 x 35 A FRED PtTM
Device code
70
1 1 2 3 4 5 6 -
C
2
R
3
U
4
02
5
PbF
6
Current rating (70 = 70 A) Common cathode TO-218 Ultrafast recovery Voltage rating (02 = 200 V) None = Standard production PbF = Lead (Pb)-free
Tube standard pack quantity: 30 pieces
LINKS TO RELATED DOCUMENTS Dimensions Part marking information http://www.vishay.com/doc?95214 http://www.vishay.com/doc?95219
www.vishay.com 6
For technical questions, contact: diodes-tech@vishay.com
Document Number: 94509 Revision: 21-Jul-08
Legal Disclaimer Notice
Vishay
Disclaimer
All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, "Vishay"), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all liability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permitted by law. The product specifications do not expand or otherwise modify Vishay's terms and conditions of purchase, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medical, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners.
Document Number: 91000 Revision: 18-Jul-08
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