CHENYI BAS21 Small signal diodes 250mw Datasheet

BAS19
THRU
BAS21
Shanghai Lunsure Electronic
Technology Co.,Ltd
Tel:0086-21-37185008
Fax:0086-21-57152769
Features
Small
l Ideally Suited for Automatic Insertion
l 150oC Junction Temperature
l Fast Switching speed
l Epitaxial Planar Die Construction
Signal Diodes
250mW
Mechanical Data
l Case: SOT-23, Molded Plastic
SOT-23
l Weight: 0.008 grams ( approx.)
l Marking Code
A
D
Continuous
Reverse
Part
Marking
Voltage
Number
VR (V)
BAS19
BAS20
BAS21
JP
JR
JS
100
150
200
Repetitive
Peak
Reverse
Voltage
VRRM (V)
120
200
250
C
F
B
E
H
G
J
K
DIMENSIONS
Maximum Ratings @ 25 C Unless Otherwise Specified
o
Parameter
Symbol Value
Non-repetitive
@ t=1us
2.5
IFSM
Peak Reverse Voltage
@ t=1s
0.5
IF(AV)
Average Rectified Forward Current
200(1)
IF
Forward DC Current at Tamb=25oC
200(2)
IFRM
Repetitive Peak Forward Current
625
Unit
A
mA
mA
DIM
A
B
C
D
E
F
G
H
J
K
INCHES
MIN
.110
.083
.047
.035
.070
.018
.0005
.035
.003
.015
MAX
3.04
2.64
1.40
1.03
2.05
.60
.100
1.12
.180
.51
NOTE
.031
.800
.035
.900
.079
2.000
Notes: (1) Measured under pulse conditions;
Pulse time = tp <= 0.3ms
(2) Device on fiberglass substrate,
See layout on next page
MM
MIN
2.80
2.10
1.20
.89
1.78
.45
.013
.89
.085
.37
Suggested Solder
Pad Layout
mA
Ptot
250
mW
Power Dissipation up to Tamb=25oC
Thermal Resistance Junction to
RqJA
430 oC/W
Ambient
Operating & Storage Temperature Tj, TSTG -65~150 oC
MAX
.120
.098
.055
.041
.081
.024
.0039
.044
.007
.020
.037
.950
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.037
.950
inches
mm
BAS19 thru BAS21
Electrical Characteristics
(TJ = 25°C unless otherwise noted)
Parameter
Symbol
Test Condition
IF = 100mA
IF = 200mA
Min
Typ
Max
Unit
—
—
—
—
1.0
1.25
V
V
Forward Voltage
VF
Leakage Current
IR
VR = VRmax
VR = VRmax; Tj = 150°C
—
—
—
—
100
100
nA
µA
Dynamic Forward Resistance
rf
IF = 10mA
—
5
—
Ω
Ctot
VR = 0
f = 1MHz
—
—
5
pF
trr
IF = 30mA, IR = 30mA
Irr = 3mA, RL = 100Ω
—
—
50
ns
Capacitance
Reverse Recovery Time
(see figures)
(1)Device on fiberglass substrate, see layout (SOT-23).
Test Circuit and Waveforms (BAS19, BAS20, BAS21)
Ω
Input signal
Test circuit
Waveforms; IR = 3 mA
Input Signal
-
total pulse duration
duty factor
rise time of reverse pulse
reverse pulse duration
tp(tot) = 2µs
δ = 0.0025
tr = 0.6ns
tp = 100ns
tr = 0.35ns
C < 1pF
Oscilloscope - rise time
- cicuit capitance*
Output signal
*C = oscilloscope input capactitance + parasitic capacitance
Layout for RΘJA test
Thickness: Fiberglass 0.059 in. (1.5 mm)
Copper leads 0.012 in. (0.3 mm)
0.30 (7.5)
0.12 (3)
.04 (1)
.08 (2)
.04 (1)
.08 (2)
0.59 (15)
0.03 (0.8)
0.47 (12)
0.2 (5)
Dimensions in inches (millimeters)
0.06 (1.5)
0.20 (5.1)
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