RURD840, RURD860, RURD840S, RURD860S
Data Sheet January 2000
8A, 400V - 600V Ultrafast Diodes
The RURD840, RURD860, RURD840S and RURD860S are
ultrafast dual diodes with soft recovery characteristics
(t
< 60ns). They have low forward voltage drop and are
rr
silicon nitride passivated ion-implanted epitaxial planar
construction.
These devices are intended for use as freewheeling/
clamping diodesandrectifiers 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 TA09616.
Ordering Information
PART NUMBER PACKAGE BRAND
RURD840 TO-251 RUR840
RURD860 TO-251 RUR860
RURD840S TO-252 RUR840
RURD860S TO-252 RUR860
NOTE: Whenordering,usetheentirepart number.Addthesuffix 9A
to obtain the TO-252 variant in tape and reel, e.g. RURD860S9A.
File Number 4033.1
Features
• Ultrafast with Soft Recovery . . . . . . . . . . . . . . . . . . .<60ns
• Operating Temperature. . . . . . . . . . . . . . . . . . . . . . .175
o
• Reverse Voltage Up To. . . . . . . . . . . . . . . . . . . . . . . .600V
• Avalanche Energy Rated
• Planar Construction
Applications
• Switching Power Supplies
• Power Switching Circuits
• General Purpose
Packaging
JEDEC STYLE TO-251
ANODE
CATHODE
CATHODE
(FLANGE)
C
Symbol
K
A
Absolute Maximum Ratings T
Peak Repetitive Reverse Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Working Peak Reverse Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
DC Blocking Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .V
Average Rectified Forward Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I
(TC = 155oC)
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 10 and 11) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E
Operating and Storage Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .T
Maximum Lead Temperature for Soldering
Leads at 0.063in (1.6mm) from Case for 10s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
Package Body for 10s, See Tech Brief 334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . T
= 25oC, Unless Otherwise Specified
C
RRM
RWM
F(AV)
FRM
FSM
STG
PKG
AVL
, T
JEDEC STYLE TO-252
CATHODE
ANODE
RURD840
RURD840S
400 600 V
400 600 V
R
D
J
L
400 600 V
88A
16 16 A
40 40 A
75 75 W
20 20 mJ
-65 to 175 -65 to 175
300 300
260 260
CATHODE
(FLANGE)
RURD860
RURD860S UNITS
o
C
o
C
o
C
1
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 2000
RURD840, RURD860, RURD840S, RURD860S
Electrical Specifications T
= 25oC, Unless Otherwise Specified
C
RURD840, RURD840S RURD860, RURD860S
SYMBOL TEST CONDITION
V
F
IF = 8A - - 1.5 - - 1.5 V
IF = 8A, TC = 150oC - - 1.3 - - 1.3 V
I
R
VR = 400V - - 100 - - - µA
VR = 600V - - - - - 100 µA
VR = 400V, TC = 150oC - - 500 - - - µA
VR = 600V, TC = 150oC -----500µA
t
rr
IF = 1A, dIF/dt = 200A/µs - -60- -60ns
IF = 8A, dIF/dt = 200A/µs - -70- -70ns
t
a
t
b
Q
RR
C
J
R
θJC
IF = 8A, dIF/dt = 200A/µs - 32 - - 32 - ns
IF = 8A, dIF/dt = 200A/µs - 21 - - 21 - ns
IF = 8A, dIF/dt = 200A/µs - 195 - - 195 - nC
VR = 10V, IF = 0A - 25 - - 25 - pF
--2--2oC/W
DEFINITIONS
VF = Instantaneous forward voltage (pw = 300µs, D = 2%).
IR = Instantaneous reverse current.
trr = Reverse recovery time (See Figure 9), summation of ta + tb.
ta = Time to reach peak reverse current (See Figure 9).
tb = Time from peak IRM to projected zero crossing of IRM based on a straight line from peak IRM through 25% of IRM (See Figure 9).
QRR = Reverse recovery charge.
CJ = Junction Capacitance.
R
= Thermal resistance junction to case.
θJC
pw = pulse width.
D = duty cycle.
UNITSMIN TYP MAX MIN TYP MAX
Typical Performance Curves
40
10
100oC
, FORWARD CURRENT (A)
F
I
1
0.5
0 0.5 1 1.5 2 2.5
175oC
25oC
VF, FORWARD VOLTAGE (V)
FIGURE 1. FORWARD CURRENT vs FORWARD VOLTAGE FIGURE 2. REVERSE CURRENT vs REVERSE VOLTAGE
2
500
100
10
1
, REVERSE CURRENT (µA)
0.1
R
I
0.01
0 200 400 600300 500
100
VR, REVERSE VOLTAGE (V)
175oC
100oC
25oC