BAS40
Surface Mount Schottky
Barrier Diode
Low Turn-on Voltage
Low Forward Voltage - 0.5V(Max) @ I = 30 mA
F
Case: Molded Plastic
Terminals: Solderable per MIL-STD-202,
Method 208
Polarity: See Diagrams Below
Weight: 0.008 grams (approx.)
Mounting Position: Any
Very Low Capacitance - Less Than 5.0pF @ 1V
For high speed switching application, circuit protection
K
C
H
L
A
BS
G
V
3
12
To p Vie w
1
2
3
3
CATHODE
1
ANODE
2.800 3.040
1.200 1.400
0.890 1.110
0.370 0.500
1.780 2.040
0.013 0.100
0.085 0.177
0.450 0.600
0.890 1.020
2.100 2.500
0.450 0.600
All Dimension in mm
MAXIMUM RATINGS o
(T = 150 C unless otherwise noted)
J
Rating Symbol Value Unit
Rev ers e Volta ge V R40 Volts
Fo rwa rd Po wer Dis sip atio n
@ TA = 25
Der ate abo ve 25
PF
225
1.8
mW
mW /
Op era ting Jun ctio n and Sto rag e Tem per atu re Ran ge TJ, Tstg -55 to +1 50
DEVICE MARKING
BA S40 = B1
ELECTRICAL CHARACTERISTICS (TA = unl ess oth erw ise not ed)
Characteristic Symbol Mi n Ma x Un it
Re ver se Bre ak do wn Volt ag e
(IR = 10 mA)
V(BR )R 40 Volt s
Tota l Ca pa cita nc e
(V R = 1.0 V, f = 1.0 MH z)
CT5.0 pF
Re ver se Le ak ag e
(V R = 25 V)
IR1.0 mAd c
Fo rw ard Volt ag e
(IF = 0.1 mA dc )
VF38 0 mV dc
Fo rw ard Volt ag e
(IF = 30 mA dc )
VF50 0 mV dc
Fo rw ard Volt ag e
(IF = 10 0 mA dc )
VF1.0 Vd c
oC
OCoC
oC
o
25 C
SOT-23
Dim
A
B
C
D
G
H
J
K
L
S
V
Min Max
Features
Mechanical Data
RATINGS AND CHARACTERISTIC CURVES BAS40
100
0 0.1
VF, F orward Vo ltage (V )
0.2 0.3 0.4 0.5
10
1.0
0.1
85
10
0
VR, R everse Vo ltage (V)
1.0
0.1
0.0 1
0.0 01
5.0 10 15 20 25
3.5
0
VR, Reverse Voltage (V )
3.0
1.0
0.5
0
CT, C apacitance (pF)
5.0 10 15 40
IF, Forward C urrent (m A)
Fi gu re 1. Typic al Forw ard Vol ta ge Figure 2. Reverse Current versus ReverseVoltage
Fi gure 3. Typical Capacitance
-4 0
25
TA = 150
25
IR, R eve rse Current (
m
A)
0.8
1 2 5
15
o
0 C
100
2520
1.5
2.0
2.5
0.6 0.7
125
85
30 35
OC
OC
OC
OC-55 OC
OC
OC
OC
OC
