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COMCHIP
COMCHIP
SOT-23
Dimensions in inches (millimeters)
MDS021
1002A Page 1
.037(0.95) .037(0.95)
.00
6
(
0.1
5
)
max.
.1
19
(3.
0
)
.0
20
(0.
5
)
.0
20
(0.
5
)
Top View
.10
3
(2.6)
.00
6
(
0
.15)
.0
4
4
(1
.
1
0
)
.110 (2.8)
.0
47
(1
.
2
0
)
.00
2
(0
.
0
5)
.0
86
(2.
2
)
.0
3
5
(0
.
9
0
)
.0
20
(0.
5
)
.056 (
1
.4
0)
1
2
BAS40
ANODE
3
CATHODE
1
2
ANODE
CATHODE
3
ANODE
CATHODE
1
2
ANODE
CATHODE
3
ANODE
BAS40-06
BAS40-05
1
CATHODE
1
2
BAS40-04
ANODE
CATHODE
3
ANODE
3
2
1
Rating
Symbol
Value
Units
Repetitive Peak Reverse Voltage
V
RRM
40
V
Forward Continuous Current at Tamb = 25C
I
F
200(1)
mA
Surge Forward Current at tp < 1 s, Tamb = 25C
I
FSM
600(1)
mA
Power Dissipation(1) at Tamb = 25C
P
tot
200(1)
mW
Thermal Resistance Junction to Ambiant Air
R
thJA
430(1)
C/W
Junction Temperature
T
j
150
C
Storage Temperature Range
T
S
55 to +150
C
Parameter
Symbol
Test Condition
Min
Typ
Max
Units
Reverse Breakdown Voltage
V(BR)R
IR =10A (pulsed)
40.0
-
-
V
Pulse Test tp < 300s
VR = 30V
Pulse Test tp < 300s
IF = 1mA
-
-
380
mV
IF = 40mA
-
-
1000
mV
VR = 0V
f = 1MHz
IF = 10mA, IR = 10mA
Irr = 1mA, RL = 100
Maximum Ratings and Thermal Characteristics
(TA = 25C unless otherwise noted)
20
Note: (1) Device on fiberglass substrate, see layout on next page.
Electrical Characterics
(TA = 25C unless otherwise noted)
IR
Leakage Current
Capacitance
Ctot
Forward Voltage
VF
Reverse Recovery Time
Trr
-
-
-
40
-
100.0
nA
5
pF
5
nS
Voltage:
40 Volts
Power: 200mW
BAS40 Thru BAS40-06
Features
Low Turn-on Voltage
Low Forward Voltage - 0.5V(Max) @ IF = 30 mA
Very Low Capacitance - Less Than 5.0pF @ 1V
For high speed switching application, circuit
protection
Mechanical data
Case: SOT-23, Molded Plastic
Weight: 0.008 grams (approx.)
Mounting Position: Any
Surface Mount Schottky Diode
RATING AND CHARACTERISTIC CURVES (BAS40 thru B
AS40-06)
Surface Mount Switching Diode
www.comchip.com.tw
COMCHIP
100
0
0.1
VF, Forward Voltage (V)
0.2
0.3
0.4
0.5
10
1.0
0.1
85
C
10
0
VR, Reverse Voltage (V)
1.0
0.1
0.01
0.001
5.0
10
15
20
25
3.5
0
VR, Reverse Voltage (V)
3.0
1.0
0.5
0
C
T
, Capacitance
(pF)
5.0
10
15
40
I F
, For
ward Current
(mA)
Figure 1. Typical Forward Voltage
Figure 2. Reverse Current versus Reverse
Voltage
Figure 3. Typical Capacitance
40
C
25
C
TA = 150
C
25
C
I R
, Reverse Current
(
A)
0.8
55
C
1 25
C
150
C
100
25
20
1.5
2.0
2.5
0.6
0.7
125
C
85
C
30
35
MDS0211002A Page 2
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