Fairchild Semiconductor RURD460S Datasheet
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RURD460, RURD460S
Data Sheet January 2002
4A, 600V Ultrafast Diodes
The RURD460, and RURD460S are ultrafast diodes with soft
recovery characteristics (t
< 55ns). They have low forward
rr
voltage drop and are silicon nitride passivated ion-implanted
epitaxial planar construction.
These devices are intended for use as freewheeling/
clamping diodes and rectifiers in a variety of switching power
supplies and other power switching applications. Their low
stored charge and ultrafast soft recovery minimize ringing
and electrical noise in many power switching circuits
reducing power loss in the switching transistors.
Formerly developmental type TA49035.
Ordering Information
PART NUMBER PACKAGE BRAND
RURD460 TO-251 RUR460
RURD460S TO-252 RUR460
NOTE: When ordering, use the entire part number. Add suffix 9A to
obtain the TO-252 variant in tape and reel, i.e., RURD460S9A.
Symbol
Features
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . . <55ns
• Operating Temperature . . . . . . . . . . . . . . . . . . . . . .175
o
• Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 600V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Packaging
JEDEC STYLE TO-251
C
K
JEDEC STYLE TO-252
A
Absolute Maximum Ratings
Peak Repetitive Reverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .I
(T
Repetitive Peak Surge Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Square Wave, 20kHz)
Nonrepetitive Peak Surge Current. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(Halfwave, 1 phase, 60Hz)
Maximum Power Dissipation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .P
Avalanche Energy (See Figures 9 and 10) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
Maximum Lead Temperature for Soldering
Leads at 0.063 in. (1.6mm) from case for 10s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
Package Body for 10s, see Tech Brief 334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .T
= 160
C
o
C)
o
T
= 25
C, Unless Otherwise Specified
C
RRM
RWM
F(AV)
FRM
FSM
STG
PKG
AVL
, T
RURD460
RURD460S UNITS
600 V
600 V
R
D
J
L
600 V
4A
8A
40 A
50 W
10 mJ
-65 to 175
300
260
o
C
o
C
o
C
©2002 Fairchild Semiconductor Corporation RURD460, RURD460S Rev. B
0 600400300200
100
0.01
0.1
1
10
500
100 500
100oC
175oC
25oC
I
R
, REVERSE CURRENT (µA)
VR, REVERSE VOLTAGE (V)
µ
µ
θ
θ
RURD460, RURD460S
Electrical Specifications
T
o
= 25
C, Unless Otherwise Specified
C
SYMBOL TEST CONDITION MIN TYP MAX UNITS
V
F
I
R
t
rr
t
a
t
b
Q
RR
C
J
R
JC
I
= 4A - - 1.5 V
F
I
= 4A, T
F
V
= 600V - - 100
R
V
= 600V, T
R
I
= 1A, dI
F
I
= 4A, dI
F
I
= 4A, dI
F
I
= 4A, dI
F
I
= 4A, dI
F
V
= 10V, I
R
o
= 150
C
C - - 1.2 V
= 150
C
/dt = 100A/ µ s--55ns
F
/dt = 100A/ µ s--60ns
F
/dt = 100A/ µ s - 32 - ns
F
/dt = 100A/ µ s - 15 - ns
F
/dt = 100A/ µ s - 50 - nC
F
= 0A - 15 - pF
F
DEFINITIONS
V
= Instantaneous forward voltage (pw = 300 µ s, D = 2%).
F
I
= Instantaneous reverse current.
R
t
= Reverse recovery time (See Figure 8), summation of t
rr
t
= Time to reach peak reverse current (See Figure 8).
a
t
= Time from peak I
b
Q
= Reverse recovery time.
RR
C
= Junction capacitance.
J
R
= Thermal resistance junction to case.
JC
to projected zero crossing of I
RM
pw = Pulse width.
D = Duty cycle.
o
C - - 500
--3
+ t
.
a
b
based on a straight line from peak I
RM
through 25% of I
RM
(See Figure 8).
RM
o
A
A
C/W
Typical Performance Curves
©2002 Fairchild Semiconductor Corporation RURD460, RURD460S Rev. B
20
10
o
100
C
, FORWARD CURRENT (A)
F
1
I
0.5
0
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
0.5
VF, FORWARD VOLTAGE (V)
1
175oC
25oC
1.5
2
2.5
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