CORPORATION
GD491SD
Description
Package Dimensions
ISSUED DATE :2005/07/11
REVISED DATE :
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 GD491SD is low power rectification for switching power supply.
REF.
A
A1
A2
D
E
HE
Millimeter
Min.
Max.
0.85
1.05
0
0.10
0.80
1.00
1.15
1.45
1.60
1.80
2.30
2.70
REF.
L
b
c
Q1
Millimeter
Min.
Max.
0.20
0.25
0.10
0.40
0.40
0.18
0.15 BSC.
Absolute Maximum Ratings at Ta = 25 :
Parameter
Operating Junction Temperature
Storage Temperature
Maximum Recurrent Peak Reverse Voltage
Maximum RMS Voltage
Maximum DC Blocking Voltage
Maximum Average Forward Rectified Current
Peak Forward Surge Current at 8.3mSec single half sine-wave
Typical Junction Capacitance between Terminal (Note 1)
Total Power Dissipation
Symbol
Tj
Tstg
V
RRM
V
RPS
V
DC
Ratings
-50 ~ +125
-50 ~ +150
25
18
20
1
3.0
30
225
V
V
V
A
A
pF
mW
Unit
I
o
I
FSM
C
J
PD
Electrical Characteristics
(at T
A
= 25
Parameter
Reverse Breakdown Voltage
Maximum Instantaneous Forward Voltage
Reverse Leakage Current
2. ESD sensitive product handling required.
V
F
unless otherwise noted)
Min.
25
-
-
Max.
-
450
200
Unit
V
mV
A
Test Conditions
Symbol
V(
BR
)
R
I
R
=100 A
I
F
=1A
V
R
=20V
I
R
Notes: 1. Measured at 1.0 MHz and applied reverse voltage of 10 volts.
1/2
GTM [ GTM CORPORATION ]
