Voltage: 250 Volts
Current: 0.2Amp
BAS21
Feature
High Voltage Switching Diode
Surface Mount Package Ideally Suited for
Automatic Insertion
For General Purpose Switching
Applications
Surface Mount Switching Diode
www.comchip.com.tw
COMCHIP
COMCHIP
Rating Symbol Value Units
Continuous Reverse Voltage V
R
250 V
DC
Peak Forward Current I
F
200.0 mAdc
Peak Surge Forward Current I
FSM
(surge) 625 mAdc
Characteristic Symbol Max Units
Total Device Dissipation FR– 5 Board(1) T
A
= 25°C 225.0 mW
Derate above 25°C 1.8 mW/°C
Thermal Resistance, Junction to Ambient R
JA
556.0 °C/W
Total Device Dissipation Alumina Substrate,(2) T
A
= 25°C 300 mW
Derate above 25°C 2.4 mW/°C
Thermal Resistance, Junction to Ambient R
JA
417 °C/W
Junction and Storage Temperature T
J
,T
stg
–55 to +150 °C
Characteristic Symbol Min Max Units
Reverse Voltage Leakage Current V
R
= 200 Vdc -1.0
V
R
= 200 Vdc, TJ = 150°C -100
Reverse Breakdown Voltage (BR = 100 Adc) V(BR) 250 - Vdc
Forward Voltage F = 100 mAdc 1000
F = 200 mAdc 1250
Diode Capacitance (V
R
= 0, f = 1.0 MHz)) C
D
5pF
Reverse Recovery Time (I
F
= IR = 30 mAdc, RL = 100 ) Trr 50 nS
mV
1.FR–5 = 1.0 X 0.75X 0.062 in. 2.Alumina = 0.4X 0.3X 0.024 in. 99.5% alumina.
P
D
Electrical Characterics
(TA = 25°C unless otherwise noted)
I
R
VF
Maximum Ratings
Thermal Characteristics
P
D
uAdc
SOT-23
Dimensions in inches (millimeters)
Mechanical Data
Case: SOT -23, Plastic
Terminals : Solderable per NIL-STD -202,
Method 208
Approx. Weight: 0.008 gram
MDS0209006A
Page 1
.037(0.95).037(0.95)
.006(0.15)max.
.119 (3.0)
.020 (0.5).020 (0.5)
Top View
.103(2.6)
.006(0.15)
.044(1.10)
.110 (2.8)
.047 (1.20
)
.002(0.05)
.086 (2.2)
.035(0.90)
.020 (0.5)
.056 (1.40)
RATING AND CHARACTERISTIC CURVES (BAS21)
Surface Mount Switching Diode
Surface Mount Switching Diode
www.comchip.com.tw
COMCHIP
COMCHIP
MDS0209006A Page 2
Notes: 1. A 2.0 kΩ variable resistor adjusted for a Forward Current (IF) of 10 mA.
Notes: 2. Input pulse is adjusted so IR(peak) is equal to 10 mA.
Notes: 3. tp » trr
+10 V 2 k
820
Ω
0.1
µ
F
DUT
VR
100
µ
H0.1
µ
F
50
Ω
Οutput
Pulse
Generator
50
Ω
Input
Sampling
Oscilloscope
trtpt
10%
90%
IF
IR
trr t
IR(REC) = 1 mA
Output Pulse
(IF = IR = 10 mA; measured
at IR(REC) = 1 mA)
IF
Input Signal
Figure 1. Recovery Time Equivalent Test Circuit
Figure 2. Forward Voltage Figure 3. Reverse Leakage
3500
Forward Voltage (mV)
Forward Current (mA)
2500
1500
500
00.2 0.5 21
3000
2000
1000
5 10 20 50 100 2000.1
7000
Reverse Current (nA)
Reverse Voltage (V)
5000
3000
5
021
6000
4000
6
5 10 20 50 100 200
1
2
3
4
TA = 155
°
C
TA = –55
°
C
TA = 25
°
C
300
TA = 155
°
C
TA = 25
°
C
TA = –55
°
C
