1N4148WF / 1N4448WF
SURFACE MOUNT
FAST SWITCHING DIODE
REVERSE VOLTAGE – 75 Volts
FORWARD CURRENT – 0.15 Ampere
FEATURES
• Fast switching speed
• Ideally suited for automatic insertion
• For general purpose switching applications
MECHANICAL DATA
•
Polarity: Indicated by cathode band
• Case: Flat lead SOD-123 Plastic
• Case material: “Green” molding compound, UL
flammability classification 94V-0, (No Br. Sb. CI)
• Moisture sensitivity: Level 1 per J-STD-020D
• Matte Tin(Sn) Lead finish
• Lead free in RoHS 2002/95/EC compliant
SOD-123F
SOD-123F
DIM. MIN.
MAX.
A 2.50 2.70
B 3.30 3.70
C 1.50 1.70
D 0.50 0.70
E 0.80 1.00
F 0.05 0.20
All Dimensions in millimeter
Maximum Ratings & Thermal Characteristics
@ T
A
= 25℃ unless otherwise specified
Characteristic Symbol
1N4148WF / 1N4448WF Units
Non-Repetitive Peak Reverse Voltage V
RSM
100
V
Repetitive Peak Reverse Voltage V
RRM
75 V
Peak Forward Surge Current
(Pulse Width=1us) I
FSM
2.0 A
Repetitive Peak Forward Current I
FRM
300 mA
Average Rectified Output Current I
O
150 mA
Power Dissipation P
D
400 mW
Operating Temperature Range T
J
-55~+150 ℃
Storage Temperature Range T
STG
-65~+150 ℃
Electrical Characteristics
@
T
A
= 25℃ unless otherwise specified
Characteristic Test Condition Symbol
1N4148WF 1N4448WF Unit
Breakdown voltage
IR=100uA
IR=5uA
BV 100
75 V
Maximum Forward Voltage
I
F
= 5mA
I
F
= 10mA
I
F
= 100mA
V
F
-
1000
-
720
-
1000
mV
Maximum DC Reverse Current
at Rated DC Blocking Voltage
V
R
= 75V
V
R
= 20V I
R
5
25
uA
nA
Typical Diode Capacitance V
R
=0V,f=1MHz C
D
4 pF
Reverse Recovery time
I
F
=10mA
I
R
=60mA
R
L
=100Ω
Irr=1mA,
trr 4 ns
REV. 3, Dec-2011, KSYR84
RATING AND CHARACTERISTIC CURVES
1N4148WF / 1N4448WF
Device Marking:
Device P/N Marking code Equivalent Circuit Diagram
1N4148WF D1
1N4448WF D2
Fig.1 TYPICAL JUNCTION CAPACITANCE Fig.2 TYPICAL FORWARD CHARACTERISTICS
Forward Voltage (V)
Forward Current (mA)
Fig.3 POWER DERATING CURVE
Valid provided leads at a distance of 0.8mm from case are kept at
ambient temperature
Fig.4 TYIPCAL REVERSE CHARACTERISTICS
Legal Disclaimer Notice
1N4148WF / 1N4448WF
Important Notice and Disclaimer
LSC reserves the right to make changes to this document and its products and specifications
at any time without notice. Customers should obtain and confirm the latest product
information and specifications before final design, purchase or use.
LSC makes no warranty, representation or guarantee regarding the suitability of its products
for any particular purpose, nor does LSC assume any liability for application assistance or
customer product design. LSC does not warrant or accept any liability with products which
are purchased or used for any unintended or unauthorized application.
No license is granted by implication or otherwise under any intellectual property rights of
LSC.
LSC products are not authorized for use as critical components in life support devices or
systems without express written approval of LSC.
