1N4448WS
Document number: DS30096 Rev. 15 - 2
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SURFACE MOUNT FAST SWITCHING DIODE
Features
• Fast Switching Speed
• Small Surface Mount Package
• For General Purpose Switching Applicat i ons
• High Conductance
• Totally Lead-Free & Fully RoHS Compliant (Notes 1 & 2)
• Halogen and Antimon y Free. “Green” Device (Note 3)
• Qualified to AEC-Q101 Standards for High Reliabilit y
•
PP AP Capable (Note 4)
Mechanical Data
• Case: SOD323
• Case Material: Molded Plastic, “Green” Molding Compound.
UL Flammability Classification Rating 94V-0
• Moisture Sensitivi t y: Level 1 per J-STD-020
• Leads: Matte Ti n Finish Annealed over Alloy 42 Leadframe
(Lead-Free Plating). S ol derabl e per MIL-STD-202, Method 208
• Polarity: Cathode Band
• Weight: 0.004 grams (Approximate)
Ordering Information (Note 5)
Part Number
Compliance
Case
Packaging
1N4448WS-7-F
Standard
SOD323
3,000/Tape & Reel
1N4448WSQ-7-F Automotive SOD323 3,000/Tape & Reel
Notes: 1. No purposely added lead. Fully EU Directive 2002/95/EC (RoHS) & 2011/65/EU (RoHS 2) compliant.
2. See http://www.diodes.com/quality/lead_free.html for more information about Diodes Incorporated’s definitions of Halogen- and Antimony-free, "Green"
and Lead -free.
3. Halogen- and Antimony-free "Green” products are defined as those which contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and
<1000ppm antimony compounds.
4. Automotive products are AEC-Q101 qualified and are PPAP capable. For more information, please refer to
http://www.diodes.com/product_compliance_definitions.html.
5. For packaging details, go to our website at http://www.diodes.com/products/packages.html.
Marking Information
T5 = Product Type Marking Code
T5
Cathode B and
SOD323
Top View
SOD323
Device Schematic
1N4448WS
Document number: DS30096 Rev. 15 - 2
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Maximum Ratings (@TA = +25°C, unless otherwise specified.)
Characteristic
Symbol
Value
Unit
Non-Repetitive P eak Reverse Voltage
VRM
100 V
Peak Repetiti ve Reverse Voltage
Working Peak Reverse Voltage
DC Blocking Voltage
VRRM
VRWM
V
R
75 V
RMS Reverse Voltage
VR(RMS)
53
V
Forward Continuous Current
IFM
500 mA
Average Rectified O utput Current
IO
250 mA
Non-Repetitive P eak F orward Surge Current @t = 1.0μs
@t = 1.0s
IFSM
4
0.5
A
Thermal Characteristics
Characteristic
Symbol
Value
Unit
Power Dissipation (Note 7)
PD
200
mW
Thermal Resistanc e Juncti on to Ambient Air (Not e 7)
RθJA
625 °C/W
Operating and Storage Tem perature Range
TJ, TSTG
-65 to +150 °C
Electrical Characteristics (@TA = +25°C, unless ot herwise spec ifi ed. )
Characteristic
Symbol
Min
Max
Unit
Test Condition
Reverse Breakdown Voltage (Note 6) V
(BR)R
75 V I
R
= 2.5µA
Forward Voltage VFM
0.62
0.72
0.855
1.0
1.25
V
IF = 5.0mA
IF = 10mA
IF = 100mA
IF = 150mA
Peak Reverse Current (Note 6) IRM
2.5
50
30
25
µA
µA
µA
nA
VR = 75V
VR = 75V, TJ = +150°C
VR = 25V, TJ = +150°C
VR = 20V
Total Capacitance
CT
4.0 pF
VR = 0, f = 1.0MHz
Reverse Recovery Time tRR 4.0 ns IF = IR = 10mA,
I
RR
= 0.1 x I
R
, R
L
= 100Ω
Notes: 6. Short duration pulse test used to minimize self-heating.
7. Part mounted on FR-4 PC board with minimum recommended pad layouts, which can be found on our website
http://www.diodes.com/datasheets/ap02001.pdf.
1N4448WS
Document number: DS30096 Rev. 15 - 2
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0
100
300
025 50 75 100 125 150
P POWER DISSIPATION (mW)
D
,
T, AMBIENT TEMPERATURE ( C)
A
°
Figure 1 Forward Current Derating Curve
200
Note 7
0.1
1
10
100
1000
0200 400 600 800 1000 1200 1400 1600
Figure 2 Typical Forward Characteristics
V, INSTANT ANEOUS FORWARD VOL TAGE (mV)
F
I , INSTANTANEOUS FORWARD CURRENT (mA)
F
T = 85°C
A
T = 125°C
A
T = 150°C
A
T = - 55°C
A
T = 25°C
A
0.10
1.0
10.0
0.01
0.001
020 40 60 80
V , INSTANTANEOUS REVERSE VOLTAGE (V)
Figure 3 Typic al Reve rse Characterist ics
R
T = 100 C
A
°
T = 0 C°
A
T = 75 C°
A
T = 50 C°
A
T = 25 C°
A
T = -30 C°
A
I , INSTANTANEOUS REVERSE CURRENT( A)
R
µ
0 4
3
25
1 6
V , DC REVERSE VOLTAGE (V)
Figure 4 Total Capacitance vs. Rev erse Voltage
R
C , TOTAL CAPACITANCE (pF)
T
0
1
2
3
4f = 1MHz
0 4 6 82 10
I , FORW A RD CURRENT (mA)
Figure 5 Revers e Reco v ery Time vs. Forward Current
F
t , REVERSE RECOVERY TIME (nS)
rr
0
0.5
1.0
1.5
2.0
2.5
1N4448WS
Document number: DS30096 Rev. 15 - 2
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Package Ou t lin e Dim en sio ns
Please see AP02002 at http://www.diodes.c om/datasheets/ ap02002.pdf for the latest version.
Suggested Pad Layout
Please see AP02001 at http://www.diodes.c om/datasheets/ ap02001.pdf for the latest versi on.
D
He
A2
E
L
c
A1
b
a
SOD323
Dim
Min
Max
Typ
A1
--
0.10
0.05
A2
1.00
1.10
1.05
b
0.25
0.35
0.30
c
0.10
0.15
0.11
D
1.20
1.40
1.30
E
1.60
1.80
1.70
He
2.30
2.70
2.50
L
0.20
0.40
0.30
a
0°
8°
--
All Dimensions in mm
Dimensions
Value (in mm)
X
0.590
X1
2.700
Y
0.450
Y
X
X1
1N4448WS
Document number: DS30096 Rev. 15 - 2
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