Document
Surface Mount Switching Diodes
COMCHIP
www.comchip.com.tw
CD S W 4148 , CD S W 4448
Voltage: 10 0 Volts Power : 410 - 500 m W
SO D -123
FEATURES
• Fast switching Speed
. 028(0.70) . 019(0.50)
.154 (3.90) .141 (3.60)
. 071(1.80) . 053(1.35)
• Electrically Identical to Standard JEDEC • High Conductance • Surface Mount Package Ideally Suited for Automatic Insertion • Flat package SOD-123 in stead mini-MELF package.
.110 (2.80) .098 (2.50)
Case: SOD-123, Plastic Terminals: Solderable per MIL-STD-202, Method 208 Approx. Weight:0.01 gram
.005 (.12) MAX.
. 008(0.20) Max.
.016 (.40)Min.
D ime ns ions in inc he s a nd ( millime te rs )
MAXIMUM RATINGS AND ELECTRICAL CHARACTERISTICS
PARAMETER PARAMETER Reverse Voltage Peak Reverse Voltage Maximum RMS Voltage Maximum DC Blocking Voltage Maximum Average Forward Current at Ta=25OC Peak Forward Surge Current, 8.3ms single half sine-wave superimposed on rated load (JEDEC method) Power Dissipation Derate Above 25OC Maximum Forward Voltage Maximum DC Reverse Current at Rated DC Blocking Voltage TJ= 25OC Typical Junction Capacitance( Notes1) Maximum Reverse Recovery (Notes2) Maximum Thermal Resistance Storage Temperature Range
SYMBOL VR VRM VRMS VDC IAV IFSM PTOT @I F=10 mA @I F=5 mA VF IR CJ TRR RθJA TJ
CDSW4148
75 100 50 75 150 2.0 410 1.0 2.5 4.0 4.0 450
CDSW4448
75 100 50 75 150 4.0 500 1.0 0.72 2.5 4.0 4.0 450
. 037(0.95)
MECHANICAL DATA
. 055(1.40)
UNITS V V V V mA A mW V µA pF ns
O
C/W
O
-55 TO +125
C
NOTE: 1. CJ at VR=0, f=1MHZ 2.From IF=10mA to IR=1mA, VR=6Volts, RL=100Ω
M D S 020800 3 A
P a ge 1
Surface Mount Switching Diodes
COMCHIP
www.comchip.com.tw
RATING AND CHARACTERISTIC CURVES (CDSW4148, CDSW4448)
100
10
TA=150OC
REVERSE CURRENT, mA
FORWARD CURRENT, mA
1.0
TA=125OC
10
0.1
TA=85OC
1.0
TA=55 C
0.01
O
TA=25OC
0.1 0.2 0.001 0.4 0.6 0.8 1.0 1.2 0 10 20 30 40 50
FORWARD VOLTAGE, Volts
REVERSE VOLTAGE, Volts
FORWARD VOLTAGE
LEAKAGE CURRENT
6.0
DIODE CAPACITANCE, pF
4.5
3.5
60 W
VRF=2V
2nF
5k W
Vo
1.5
0
0
2
4
6
8
RECTIFICATION EFFCIENCY MEASUREMENT CIRCUIT
REVERSE VOLTAGE, Volts
TYPICAL CAPATICANCE
M DS020800 3 A
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