CORPORATION
G491SD
Description
Package Dimensions
ISSUED DATE :2003/01/28
REVISED DATE :2005/05/05B
S U R F A C E M O U N T, S C H O T T K Y B A R R I E R D I O D E
V O LT A G E 2 5 V, C U R R E N T 1 A
The G491SD is low power rectification for switching power supply.
REF.
A
B
C
D
E
F
Millimeter
Min.
Max.
2.70
3.10
2.40
2.80
1.40
1.60
0.35
0.50
0
0.10
0.45
0.55
REF.
G
H
K
J
L
M
Millimeter
Min.
Max.
1.90 REF.
1.00
1.30
0.10
0.20
0.40
-
0.85
1.15
0C
10 C
Absolute Maximum Ratings at Ta = 25 :
Parameter
Junction Temperature
Storage Temperature
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Peak Forward Surge Current at 8.3mSec single half sine-wave
Typical Junction Capacitance between Terminal
Maximum Average Forward Rectified Current
Total Power Dissipation
Symbol
Tj
Tstg
V
RRM
V
RMS
V
DC
I
FSM
C
J
Io
PD
Ratings
+125
-40 ~ +125
25
18
20
3
30
1.0
225
V
V
V
A
pF
A
mW
Unit
Characteristics
at Ta = 25 :
Symbol
V(BR)R
V
F
IR
Min.
25
-
-
Max.
-
0.45
200
Unit
V
V
uA
IF = 1A
VR = 20V
Test Condition
IR = 100uA
Characteristics
Reverse breakdown voltage
Maximum Instantaneous Forward Voltage
Maximum Average Reverse Current
1/2
1
2
