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Bulletin PD-20778 03/02
UFB60FA20
Insulated Ultrafast Rectifier Module
Features
• Two Fully Independent Diodes
• Ceramic Fully Insulated Package (V
• Ultrafast Reverse Recovery
• Ultrasoft Reverse Recovery Current Shape
• Low Forward Voltage
• Optimized for Power Conversion: Welding and Industrial SMPS Applications
• Industry Standard Outline
• Plug-in Compatible with other SOT-227 Packages
• Easy to Assemble
• Direct Mounting to Heatsink
= 2500V AC)
ISOL
Description
The UFB60FA20 insulated modules integrate two state-of-the-art International Rectifier's Ultrafast recovery rectifiers
in the compact, industry standard SOT-227 package. The planar structure of the diodes, and the platinum doping lifetime 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, DCDC converters. Their extremely optimized stored charge and low recovery current reduce both over dissipation in the
switching elements (and snubbers) and EMI/ RFI.
t
= 27ns
rr
= 60A
I
F(AV)
= 100°C
@ T
C
VR = 200V
Absolute Maximum Ratings
Parameters Max Units
V
R
I
F
I
FSM
P
D
V
ISOL
TJ, T
Cathode-to-Anode Voltage 200 V
Continuous Forward Current, TC = 100°C Per Diode 30 A
Single Pulse Forward Current, TC = 25°C Per Diode 250
Max. Power Dissipation, TC = 100°C Per Module 53 W
RMS Isolation Voltage, Any Terminal to Case, t = 1 min 2500 V
Operating Junction and Storage Temperatures - 55 to 150 °C
STG
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Case Styles
UFB60FA20
SOT-227
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UFB60FA20
Bulletin PD-20778 03/02
Electrical Characteristics @ T
= 25°C (unless otherwise specified) per diode
J
Parameters Min Typ Max Units Test Conditions
V
BR
V
FM
I
RM
C
T
Cathode Anode 200 - - V IR = 100µA
Breakdown Voltage
Forward Voltage - 0.96 1.08 V IF = 30A
- 0.78 0.86 V IF = 30A, TJ = 150°C
Reverse Leakage Current - - 100 µA VR = VR Rated
- - 1.0 mA TJ = 150°C, VR = VR Rated
Junction Capacitance - 119 - pF VR = 200V
Dynamic Recovery Characteristics @ TJ = 25°C (unless otherwise specified) per diode
Parameters Min Typ Max Units Test Conditions
t
rr
I
RRM
Q
rr
Reverse Recovery Time - - 27 ns IF = 1.0A, diF/dt = 200A/µs, VR = 30V
I
-3 1- TJ = 25°C
-5 1- TJ = 125°C
Peak Recovery Current - 2.7 - A TJ = 25°C
- 6.8 - TJ = 125°C
Reverse Recovery Charge - 41 - nC TJ = 25°C
- 174 - TJ = 125°C
= 30A
F
VR = 100V
diF /dt = 200A/µs
Thermal - Mechanical Characteristics
Parameters Min Typ Max Units
R
thJC
R
thCS
Wt Weight - 30 - g
T Mounting Torque - 1.3 - (N*m)
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Junction to Case, Single Leg Conducting - - 1.9 °C/W
Both Leg Conducting - - 0.95 K/W
Case to Heat Sink, Flat, Greased Surface - 0.05 -
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UFB60FA20
Bulletin PD-20778 03/02
1000
(A)
100
F
10
Instantaneous Forward Current - I
Tj = 150˚C
Tj = 125˚C
Tj = 25˚C
100
Tj = 150˚C
125˚C
(µA)
R
10
1
0.1
Reverse Current - I
0.01
25˚C
0.001
0 50 100 150 200
Reverse Voltage - VR (V)
Fig. 2 - Typical Values Of Reverse Current
Vs. Reverse Voltage
1000
Tj = 25˚C
(pF)
T
100
Junction Capacitance - C
1
0 0.5 1 1.5 2 2.5
Fig. 1 - Typical Forward Voltage Drop Characteristics
Forward Voltage Drop - VFM (V)
(per diode)
10
(°C/W)
thJC
1
Single Pulse
(Thermal Resistance)
0.1
Thermal Impedance Z
0.01
0.0001 0.001 0.01 0.1 1
t 1, Rectangular Pulse Duration (Seconds)
Fig. 4 - Max. Thermal Impedance Z
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10
1 10 100 1000
Fig. 3 - Typical Junction Capacitance
Characteristics (per diode)
thJC
Reverse Voltage - VR (V)
Vs. Reverse Voltage
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UFB60FA20
Bulletin PD-20778 03/02
150
140
130
DC
120
110
Square wave (D = 0.50)
100
Rated Vr applied
90
see note (3)
Allowable Case Temperature (°C)
80
0 5 10 15 20 25 30 35
Average Forward Current - I
F(AV)
(A)
Fig. 5 - Max. Allowable Case Temperature
Vs. Average Forward Current (per leg)
70
If = 30A
Vrr = 100V
60
50
Tj = 125˚C
40
trr ( ns )
30
Tj = 25˚C
20
10
100 1000
di
F
/dt (A/µs )
Fig. 7 - Typical Reverse Recovery time vs. di
30
RMS Limit
25
20
15
D = 0.01
D = 0.05
10
Average Power Loss ( W )
5
D = 0.10
D = 0.20
D = 0.50
DC
0
0 5 10 15 20 25 30 35
Average Forward Current - I
F(AV)
(A)
Fig. 6 - Forward Power Loss Characteristics
(per leg)
550
If = 30A
500
Vrr = 100V
450
400
350
Tj = 125˚C
300
250
Qrr ( nC )
200
150
100
Tj = 25˚C
50
0
100 1000
/dt
F
Fig. 8 - Typical Stored Charge vs. di
di F /dt (A/µs )
/dt
F
(3) Formula used: T C = TJ - (Pd + Pd
Pd = Forward Power Loss = I
Pd
= Inverse Power Loss = VR1 x IR (1 - D); IR @ V
REV
F(AV)
) x R
REV
x VFM @ (I
;
thJC
/ D) (see Fig. 6);
F(AV)
= rated V
R1
R
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dif/dt
ADJUST
L = 70µH
G
V = 200V
R
0.01
D
IRFP250
S
UFB60FA20
Bulletin PD-20778 03/02
3
t
I
F
0
Ω
D.U.T.
1. diF/dt - Rate of change of current through
zero crossing
2. I
- Peak reverse recovery current
RRM
- Reverse recovery time measured from
3. t
rr
zero crossing point of negative going I
point where a line passing through 0.75 I
and 0.50 I
extrapolated to zero current
RRM
1
di /dt
f
rr
t
a
to
F
RRM
t
b
2
I
RRM
di(rec)M/dt
0.75
I
RRM
4. Qrr - Area under curve defined by
t rr and I
5. di
(rec) M
of current during t b portion of t
4
Q
rr
0.5
I
RRM
5
RRM
t rr x I
RRM
Q
=
rr
2
/ dt - Peak rate of change
rr
Fig. 9 - Reverse Recovery Parameter Test
Circuit
SOT-227 Package Details
Notes:
Fig. 10 - Reverse Recovery Waveform and
Definitions
LEAD ASSIGNMENTS
FRED
1. Dimensioning & tolerancing per ANSI Y14.5M-1982.
2. Controlling dimension: millimeter.
3. Dimensions are shown in millimeters (inches).
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UFB60FA20
Bulletin PD-20778 03/02
SOT-227 Package Details
Tube
QUANTITY PER TUBE IS 10
M4 SCREW AND WASHER INCLUDED
Ordering Information Table
Device Code
UF B 60 F A 20
1
1 - ULTRAFAST RECTIFIER
2 - Ultrafast Pt diffused
3 - Current Rating (60 = 60A)
4 - Circuit Configuration (2 separate Diodes, parallel pin-out)
5 - Package Indicator (SOT-227 Standard Isolated Base)
6 - Voltage Rating (20 = 200V)
Data and specifications subject to change without notice.
This product has been designed and qualified for Industrial Level.
Qualification Standards can be found on IR's Web site.
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IR WORLD HEADQUARTERS: 233 Kansas St., El Segundo, California 90245, USA Tel: (310) 252-7105
Visit us at www.irf.com for sales contact information. 03/02
TAC Fax: (310) 252-7309
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