1SS400
SURFACE MOUNT SWITCHING DIODE
This device is an extremely fast switching diode housed in the ultra-small
SOD-523 package. Ideal for applications where board space is at a
SOD-523
FEATURES
Extremely fast reverse recovery time to reduce switching losses
Very low capacitance for reduced insertion losses
Reverse voltage rating of 80V
Also available in lead-free plating (100% matte tin finish)
Cathode Band
Indicates Polarity
APPLICATIONS
Mobile phones and accessories
Hand-held computers
High Speed Switching Applications
Marking Code:
14
MAXIMUM RATINGS
Rating
Peak Reverse Voltage
Continuous Reverse Voltage
Continuous Forward Current
T
J
= 25°C Unless otherwise noted
Symbol
V
RM
V
R
I
F
I
FSM
P
tot
T
J
T
stg
Value
90
80
225
500
200
-55 to +150
-55 to +150
Units
V
V
mA
mA
mW
°C
°C
Non-repetitive Peak Forward Current, t = 1sec, Square Wave
Total Power Dissipation (Note 1)
Operating Junction Temperature Range
Storage Temperature Range
Note 1. FR-5 Board 1.0 x 0.75 x 0.062 in.
THERMAL CHARACTERISTICS
Characteristic
Thermal Resistance, Junction to Ambient
Symbol
R
thja
Value
625
Units
°C/W
8/25/2005
Page 1
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1SS400
ELECTRICAL CHARACTERISTICS
Parameter
Forward Voltage (Note 2)
Reverse Leakage Current
Junction Capacitance
Reverse Recovery Time
(See Figure 1)
Symbol
V
F
I
R
C
D
t rr
Tj = 25°C Unless otherwise noted
Conditions
I
F
= 100mA
V
R
= 80V
0.5Vdc Bias, f =1 MHz
I
F
= 10mA, I
R
= 10mA
R
L
= 100 Ohms;
measured at I
Rrec
= 1mA
Min
-
-
-
-
Typ
-
-
0.7
-
Max
1.2
0.1
2.0
4.0
Units
V
uA
pF
ns
Note 2. Short duration pulse test to avoid self-heating effect
820
Ω
+10 V
2 .0 k
Ω
100 µH
0 .1 µ F
I
F
0 .1 µ F
?
DUT
5 0
Ω
O u tp u t
P u ls e
G e n e ra to r
5 0
Ω
In p u t
S a m p li n g
O s c il lo s c o p e
Notes: 1. A 2.0kΩ variable resistor adjusted for a forward current (I
F
) to 10mA
2. Input pulse is adjusted to I
R(peak)
is equal to 10mA
Figure 1. REVERSE RECOVERY TIME EQUIVALENT TEST CIRCUIT
8/25/2005
Page 2
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1SS400
TYPICAL CHARACTERISTIC CURVES
100
T
J
= 150 °C
Reverse Leakage Current, I
R
(uA)
10.000
T
J
= 150 °C
1.000
Forward Current, I
F
(mA)
10
T
J
= 25 °C
T
J
= 75 °C
1
T
J
= -25 °C
0.1
0.0
0.2
0.4
0.6
0.8
1.0
1.2
Forward Voltage, V
F
(V)
0.100
T
J
= 75 °C
0.010
T
J
= 25 °C
0.001
0
20
40
Reverse Voltage, V
R
(V)
60
80
Fig. 2. Typical Forward Characteristics
Fig. 3. Typical Reverse Characteristics
0.8
0.6
Capacitance (pF)
0.4
0.2
0.0
0
10
20
30
40
50
60
Reverse Voltage, V
R
(V)
Fig. 4. Typical Capacitance
8/25/2005
Page 3
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1SS400
PACKAGE LAYOUT AND SUGGESTED PAD DIMENSIONS
ORDERING INFORMATION
1SS400 T/R7 - 7" reel, 3K units per reel
1SS400 T/R13 - 13" reel, 10K units per reel
Copyright PanJit International, Inc 2005
The inform ation presented in this docum ent is believed to be accurate and reliable. The specifications and inform ation
herein are subject to change without notice. Pan Jit m akes no warranty, representation or guarantee regarding the
suitability of its products for any particular purpose. Pan Jit products are not authorized for use in life support devices or
system s. Pan Jit does not convey any license under its patent rights or rights of others.
8/25/2005
Page 4
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