This is information on a product in full production.
November 2013 DocID024893 Rev 1 1/7
FERD60U45C
Field effect rectifier
Datasheet - production data
Features
ST advanced rectifier process
Stable leakage current over reverse voltage
Low forward voltage drop
High frequency operation
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 T O-220AB, this device is intended to
be used in switch mode power supplies, or
automotive applications
K
A2
A1
K
A1KA2
TO-220AB
FERD60U45CT
Table 1. Device summary
IF(AV) 2 x 30 A
VRRM 45 V
VF(typ) 0.345 V
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Characteristics FERD60U45C
2/7 DocID024893 Rev 1
1 Characteristics
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).
To evaluate the conduction losses use the following equation:
P = 0.32 x IF(AV) + 0.0063 IF2(RMS)
Table 2. Absolute ratings (limiting values, per diode at 25° C, unless otherwise stated)
Symbol Parameter Value Unit
VRRM Repetitive peak reverse voltage 45 V
IF(RMS) Forward rms current 60 A
IF(AV) Average forward current, = 0.5 Tc =145° C
Tc =135° C Per diode
Per device 30
60 A
IFSM Surge non repet it i ve fo rw ard current tp = 10 ms sinusoidal 300 A
Tstg Storage temperature range -65 to + 175 °C
TjMaximum operating junction temperature (1) 175 °C
1. condition to avoid thermal runaway for a diode on its own heatsink
dPtot
dTj
--------------- 1
Rth j a–
--------------------------
Table 3. Thermal resistances
Symbol Parameter Value Unit
Rth (j-c) Junction to case Per diode
Total 1.4
0.9 °C/W
Rth(c) Coupling 0.4 °C/W
Table 4. Static electrical characteristics (per diode)
Symbol Parameter Test Conditions Min. Typ. Max. Unit
IR(1) Reverse leakage current Tj = 25° C VR = VRRM 1500 µA
Tj = 125° C 50 100 mA
VF(2) Forward voltage drop
Tj = 25° C IF = 15 A 0.38 0.41
V
Tj = 125° C 0.345 0.375
Tj = 25° C IF = 30 A 0.46 0.50
Tj = 125° C 0.47 0.51
1. Pulse test: tp = 5 ms, < 2%
2. Pulse test: tp = 380 µs, < 2%
DocID024893 Rev 1 3/7
FERD60U45C Characteristics
7
Figure 1. Average forward power dissipation
versus average forward current (per diode) Figure 2. Average forward current versus
ambient temperature ( = 0.5, per diode)
PF(AV) (W)
0
5
10
15
20
25
0 5 10 15 20 25 30 35 40
T
d=tp/T tp
d= 1
d= 0.5
d= 0.2
d= 0.1
d= 0.05
IF(AV) (A)
IF(AV) (A)
0
5
10
15
20
25
30
35
0 25 50 75 100 125 150 175
Rth(j-a)=Rth(j-c)
Tamb (°C)
T
d=tp/T tp
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)
Zth(j-c)/Rth(j-c)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.E-04 1.E-03 1.E-02 1.E-01 1.E+00
Single pulse
tp(s)
IR(mA)
1.E-01
1.E+00
1.E+01
1.E+02
0 5 10 15 20 25 30 35 40 45
Tj=125°C
Tj=25°C
VR(V)
Figure 5. Junction capacitance versus reverse
voltage applie d (typical values, per diode) Figure 6. Forward voltage drop versus forward
current (typical values, per diode)
C (pF)
100
1000
10000
1 10 100
F=1MHz
Vosc=30mVRMS
Tj=25°C
VR(V)
IF(A)
0.1
1.0
10.0
100.0
0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70
T
j
=25°CT
j
=125°C
VF(V)
Package Information FERD60U45C
4/7 DocID024893 Rev 1
2 Package Information
Epoxy meets UL94,V0
Cooling method: by conduction (C)
Recommended torque value: 0.4 to 0.6 N·m
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 7. TO-220AB dimension definitions
A
F
D1
J1
H1
∅P
Q
D
L1
L
b
E
e1
e
L20 L30
b1
c
Resin gate
0.5 mm max.
protrusion(1)
Resin gate
0.5 mm max.
protrusion(1)
(1) Resin gate position accepted in each of the two
position shown as well as the symmetrical opposites
DocID024893 Rev 1 5/7
FERD60U45C Package Information
7
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
L13 140.510.55
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
Ordering Information FERD60U45C
6/7 DocID024893 Rev 1
3 Ordering Information
4 Revision history
Table 6. Ordering information
Order code Marking Package Weight Base qty Delivery mode
FERD60U45CT FERD60U45CT TO-220AB 2.2 g 50 Tube
Table 7. Document revision history
Date Revision Description of Changes
13-Nov-2013 1 Previous version
DocID024893 Rev 1 7/7
FERD60U45C
7
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