DS30096 Rev. 5 - 2 1 of 3 1N4448WS
www.diodes.com ã Diodes Incorporated
1N4448WS
SURFACE MOUNT FAST SWITCHING DIODE
Features
·Case: SOD-323
·Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
·Moisture Sensitivity: Level 1 per J-STD-020C
·Leads: Solderable per MIL-STD-202, Method 208
·Also Available in Lead Free Plating (Matte Tin Finish annealed
over Alloy 42 leadframe). Please See Ordering Information, Note
5, on Page 2
·Polarity: Cathode Band
·Marking: See Page 2
·Type Code: T5
·Weight: 0.004 grams (approximate)
Mechanical Data
A
B
C
D
E
G
H
J
Characteristic Symbol 1N4448WS Unit
Non-Repetitive Peak Reverse Voltage VRM 100 V
Peak Repetitive Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
VR
75 V
RMS Reverse Voltage VR(RMS) 53 V
Forward Continuous Current IFM 500 mA
Average Rectified Output Current IO250 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0ms
@ t = 1.0s IFSM 4.0
2.0 A
Power Dissipation (Note 2) Pd200 mW
Thermal Resistance Junction to Ambient Air (Note 2) RqJA 625 °C/W
Operating and Storage Temperature Range Tj,T
STG -65 to +150 °C
Maximum Ratings @ TA= 25°C unless otherwise specified
Notes: 1. Short duration test pulse used to minimize self-heating.
2. Part mounted on FR-4 PC board with minimum recommended pad layouts, which can be found on our website at
http://www/diodes.com/datasheets/ap02001.pdf.
3. No purposefully added lead.
Characteristic Symbol Min Max Unit Test Condition
Reverse Breakdown Voltage (Note 1) V(BR)R 75 ¾VIR = 2.5mA
Forward Voltage (Note 1) VFM
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 1) IRM ¾
2.5
50
30
25
mA
mA
mA
nA
VR = 75V
VR = 75V, Tj = 150°C
VR = 25V, Tj = 150°C
VR = 20V
Total Capacitance CT¾4.0 pF VR = 0, 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
·Available in Lead Free/RoHS Compliant Version (Note 3)
SOD-323
Dim Min Max
A 2.30 2.70
B 1.60 1.80
C 1.20 1.40
D 1.05 Typical
E 0.25 0.35
G 0.20 0.40
H 0.10 0.15
J 0.05 Typical
a0°8°
All Dimensions in mm
SPICE MODEL: 1N4448WS
DS30096 Rev. 5 - 2 2 of 3 1N4448WS
www.diodes.com
0
100
300
025
50 75 125 125 150
PP
O
WER DISSIPATI
O
N (mW)
,
d
AMBIENT TEMPERATURE (°C)
Fig. 1 Forward Current Derating Curve
200 10
100
1
0.1
01000
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
T5
Cathode Band
Type Cod
e
Marking Information
Notes: 4. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
5. For Lead Free/RoHS Compliant version part number, please add "-F" suffix to the part number above. Example: 1N4448WS-7-F.
Device Packaging Shipping
1N4448WS-7 SOD-323 3000/Tape & Reel
Ordering Information (Note 4)
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
04
68
210
I , FORWARD CURRENT (mA)
F
Fig. 4 Reverse Recovery Time vs.
Forward Current
t, REVERSE RECOVERY TIME (nS)
rr
0
0.5
1.0
1.5
2.0
2
.5
DS30096 Rev. 5 - 2 3 of 3 1N4448WS
www.diodes.com
04
3
25
16
V , REVERSE VOLTAGE (V)
R
Fig. 5 Total Capacitance vs.
Reverse Volta
g
e
C , TOTAL CAPACITANCE (pF)
T
0
1
2
3
4
f= 1MHz