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BAS40
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
Surface Mount Schottky Barrier Diode
Features
A
3 1
L BS
Mechanical Data
To p Vie w G
2
Case: Molded Plastic Terminals: Solderable per MIL-STD-202, Method 208 Polarity: See Diagrams Below Weight: 0.008 grams (approx.) Mounting Position: Any
V
C H K
3 1 2
3 CATH O DE
1 AN O DE
SOT-23 Dim Min Max 2.800 3.040 A 1.200 1.400 B 0.890 1.110 C D 0.370 0.500 1.780 2.040 G 0.013 0.100 H 0.085 0.177 J 0.450 0.600 K L 0.890 1.020 2.100 2.500 S 0.450 0.600 V All Dimension in mm
o MAXIMUM RATINGS (TJ = 150 C unless otherwise noted)
Rating Rev ers e Volta ge Fo rwa rd Po wer Dis sip atio n o @ T A = 25 C O Der ate abo ve 25 C Op era ting Jun ctio n and Sto rag e Tem per atu re Ran ge
Symbol VR PF
Value 40 225 1.8 -55 to +1 50
Unit Volts mW mW / o C
o
T J, Tstg
C
DEVICE MARKING
BA S40 = B1
ELECTRICAL CHARACTERISTICS (T A = 25 o C unl ess oth erw ise not ed)
Characteristic Re ver se Bre ak do wn Volt ag e (I R = 10 mA) Tota l Ca pa cita nc e (V R = 1.0 V, f = 1.0 MH z) Re ver se Le ak ag e (V R = 25 V) Fo rw ard Volt ag e (I F = 0.1 mA dc ) Fo rw ard Volt ag e (I F = 30 mA dc ) Fo rw ard Volt ag e (I F = 10 0 mA dc ) Symbol V (BR )R CT IR VF VF VF Mi n 40 5.0 1.0 38 0 50 0 1.0 Ma x Un it Volt s pF mAd c mV dc mV dc Vd c
RATINGS AND CHARACTERISTIC CURVES BAS40
100 100 10 1.0 0.1 0.0 1
O -4 0 C
O T A = 150 C O 125 C
I F , Forward C urrent (m A)
10
IR , R everse Current (mA)
O 85 C
15 0 o C 1.0 12 5 OC 85 C O 25 C
O
25 O C
0.1
-55 C
O
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.0 01
0
5.0
Fi gu re1. Typic alForw ard Vol ta ge
V F, Forward Vo ltage (V )
10 15 V R , R everse Vo ltage (V)
20
25
Figure 2. Reverse Current versus ReverseVoltage
3.5 3.0 C T , C apacitance (pF) 2.5 2.0 1.5 1.0 0.5 0 0 5.0 10 15 20 25 30 35 40
V R , Reverse Voltage (V )
Fi gure3. Typical Capacitanc e

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