DS30395 Rev. 1 - 2 1 of 2 1N4448HWT
www.diodes.com ã Diodes Incorporated
1N4448HWT
SURFACE MOUNT FAST SWITCHING DIODE
Features
Mechanical Data
B
A
C
DG
E
CATHODE MARK
T8
MARKING CODE
Characteristic Symbol Value Unit
Non-Repetitive Peak Reverse Voltage VRM 100 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
80 V
RMS Reverse Voltage VR(RMS) 57 V
Forward Continuous Current IFM 250 mA
Average Rectified Output Current IO125 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0ms
@ t = 1.0s IFSM 2.0
1.0 A
Power Dissipation (Note 2) Pd150 mW
Thermal Resistance Junction to Ambient (Note 2) RqJA 833 °C/W
Operating and Storage Temperature Range Tj,T
STG -65 to +150 °C
Maximum Ratings @ TA= 25°C unless otherwise specified
Characteristic Symbol Min Max Unit Test Conditions
Reverse Breakdown Voltage (Note 3) V(BR)R 80 ¾VIR = 100mA
Forward Voltage VF
0.62
¾
¾
¾
0.72
0.855
1.0
1.25
V
IF = 5.0mA
IF = 10mA
IF = 100mA
IF = 150mA
Peak Reverse Current (Note 3) IR¾
100
50
30
25
nA
mA
mA
nA
VR = 80V
VR = 75V, Tj = 150°C
VR = 25V, Tj = 150°C
VR = 20V
Total Capacitance CT¾3.0 pF VR = 0.5V, f = 1.0MHz
Reverse Recovery Time trr ¾4.0 ns IF = IR = 10mA,
Irr = 0.1 x IR,R
L = 100W
Electrical Characteristics @ TA= 25°C unless otherwise specified
·Fast Switching Speed
·Ultra-Small Surface Mount Package
·For General Purpose Switching Applications
·High Conductance
TCUDORPWEN
SOD-523
Dim Min Max
A1.50 1.70
B1.10 1.30
C0.25 0.35
D0.70 0.90
E0.10 0.20
G0.50 0.70
All Dimensions in mm
·Case: SOD-523, Molded Plastic
·Case material - UL Flammability Rating
Classification 94V-0
·Moisture sensitivity: Level 1 per J-STD-020A
·Terminals: Finish - Matte Tin (Note 1)
Solderable per MIL-STD-202, Method 208
·Polarity: Cathode Band
·Marking Code: T8
·Weight: 0.002 grams (approx.)
Device Packaging Shipping
1N4448HWT-7 SOD-523 3000/Tape & Reel
(Note 4)
Ordering Information
Note: 1. If lead-bearing terminal plating is required, please contact your Diodes Inc. sales representative for availability and minimum
order details.
2. Part mounted on FR-4 board with recommended pad layout, which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
3. Short duration pulse test used so as to minimize self-heating effect.
4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
SPICE MODEL: 1N4448HWT
DS30395 Rev. 1 - 2 2 of 2 1N4448HWT
www.diodes.com
TCUDORPWEN
0
50
025
50 75 100 125
P,P
O
WER DISSIPATI
O
N(mW)
D
T , AMBIENT TEMPERATURE (°C)
A
Fig. 1 Derating Curve
100
200
150
150
10
100
1
0.1
0 1000
800
200 400 600
I,F
O
RWARD CURRENT (mA)
F
V , FORWARD VOLTAGE (mV)
F
Fig. 2 Typical Forward Characteristics
Ta = -30°C
Ta = 50°C
Ta=0°C
Ta = 85°C
Ta = 25°C
04
68
210
I , FORWARD CURRENT (mA)
F
Fig. 4 Reverse Recovery Time vs.
F
o
rw
a
r
dCu
rr
e
nt
t , REVERSE RECOVERY TIME (nS)
rr
0
0.5
1.0
1.5
2.0
2
.5
0.10
1.0
10.0
0.01
0.001
020 40 60 80
V , REVERSE VOLTAGE (V)
R
Fig. 3 Typical Reverse Characteristics
Ta = 100°C
Ta = 0°C
Ta = 75°C
Ta=50°C
Ta = 25°C
Ta=-30°C
