鈥?/div>
Case :SOT-346,Molded Plastic
Terminals :Solderable per MIL-STD-202,Method 208
Polarity :See Diagrams Below
Weight :0.008 grams (approx)
Mountion Position :Any
S
2
20 to 40 Volts
SOT-346
A
L
3
1
Maximum Ratings
鈥?/div>
鈥?/div>
Operating Temperature: -25擄C to +125擄C
Storage Temperature: -50擄C to +125擄C
MCC
Catalog
Number
RB491D
RB490D
Device
Marking
Maximum
Recurrent
Peak Reverse
Voltage
20V
40V
Maximum
RMS
Voltage
14V
28V
Maximum
DC
Blocking
Voltage
20V
40V
B
3
CATHODE
2
ANODE
D
G
C
H
DIMENSIONS
INCHES
DIM
A
B
C
D
G
H
J
K
L
S
MIN
.106
.051
.039
.014
.067
.000
.004
.008
.049
.089
MAX
.122
.067
.051
.020
.091
.004
.010
.024
.065
.118
MIN
2.70
1.30
1.00
0.35
1.70
0.00
0.10
0.20
1.25
2.25
MM
MAX
3.10
1.70
1.30
0.50
2.30
0.10
0.26
0.60
1.65
3.00
NOTE
J
K
10T
10F
Electrical Characteristics @ 25擄C Unless Otherwise Specified
Average Forward
Current
Peak Forward Surge
Current
Maximum Forward
Voltage Drop Per
Element
RB491D
RB490D
Maximum DC
Reverse Current At
Rated DC Blocking
Voltage
I
F(AV)
I
FSM
1.0A
5A
T
A
=
90擄C
8.3ms, half sine
Suggested Solder
Pad Layout
.031
.800
V
F
0.45V
0.53V
100碌螒
4.0mA
I
FM
= 1.0A
T
J
= 25擄C
T
J
= 25擄C
T
J
= 100擄C
.039
1.000
0.098-0.118
2.5-3.0
.094
2.400
inches
mm
I
R
.037
.950
.037
.950
*Pulse Test: Pulse Width 300碌sec, Duty Cycle 1%
www.mccsemi.com
1
2
