DS12013 Rev. 8 - 3 1 of 2 LL4148 / LL4448
www.diodes.com ãDiodes Incorporated
Features
LL4148 / LL4448
FAST SWITCHING SURFACE MOUNT DIODE
·Fast Switching Speed
·Surface Mount Package Ideally Suited for Automatic Insertion
·General Purpose Rectification
·Silicon Epitaxial Planar Construction
·Lead Free Finish, RoHS Compliant (Note 2)
Features
·Case: MiniMELF
·Case Material: Molded Plastic. UL Flammability Classification
Rating 94V-0
·Moisture Sensitivity: Level 1 per J-STD-020C
·Terminals: Finish ¾Matte Tin. Solderable per MIL-STD-202,
Method 208
·Polarity: Cathode Band
·Marking: Cathode Band Only
·Weight: 0.05 grams (approximate)
Mechanical Data A
C
B
MiniMELF
Dim Min Max
A3.30 3.70
B1.30 1.60
C0.28 0.50
All Dimensions in mm
Characteristic Symbol LL4148 LL4448 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 (Note 1) IFM 300 500 mA
Average Rectified Output Current (Note 1) IO150 mA
Non-Repetitive Peak Forward Surge Current @ t = 1.0s
@ t = 1.0msIFSM 1.0
2.0 A
Power Dissipation (Note 1)
Derate Above 25°CPd500
1.68
mW
mW/°C
Thermal Resistance, Junction to Ambient Air (Note 1) RqJA 300 K/W
Operating and Storage Temperature Range Tj,T
STG -65 to +175 °C
Maximum Ratings @ TA= 25°C unless otherwise specified
Notes: 1. Valid provided that device terminals are kept at ambient temperature.
2. RoHS revision 13.2.2003. Glass and High Temperature Solder Exemptions Applied, see
EU Directive Annex notes 5 and 7.
Characteristic Symbol Min Max Unit Test Condition
Maximum Forward Voltage LL4148
LL4448
LL4448
VFM
¾
0.62
¾
1.0
0.72
1.0
V
IF= 10mA
IF= 5.0mA
IF= 100mA
Maximum Peak Reverse Current IRM ¾
5.0
50
30
25
mA
mA
mA
nA
VR= 75V
VR= 70V, Tj= 150°C
VR= 20V, Tj= 150°C
VR= 20V
Capacitance Cj¾4.0 pF VR= 0, f = 1.0MHz
Reverse Recovery Time trr ¾4.0 ns IF= 10mA to IR=1.0mA
VR= 6.0V, RL= 100W
Electrical Characteristics @ TA= 25°C unless otherwise specified
NOT RECOMMENDED FOR NEW DESIGN
SUGGESTED REPLACEMENT 1N4148W / 1N4448W
NOT RECOMMENDED FOR NEW DESIGN
SUGGESTED REPLACEMENT 1N4148W / 1N4448W
Notes: 3. For packaging details, visit our website at http://www.diodes.com/datasheets/ap02007.pdf.
DS12013 Rev. 8 - 3 2 of 2 LL4148 / LL4448
www.diodes.com
1
10
100
1000
10,000
0 100 200
I , LEAKAGE CURRENT (nA)
R
T , JUNCTION TEMPERATURE ( C)
Fig. 2, Leakage Current vs Junction Temperatur
e
j
°
V=20V
R
10
1.0
100
1000
0.1
0.01
01
2
I , INSTANTANE
O
US F
O
RWARD CURRENT (mA)
F
V , INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 1 Forward Characteristics
F
Ordering Information
Device Packaging Shipping
LL4148-7 MiniMELF 2.5K/Tape & Reel, 7- inch
LL4148-13 MiniMELF 10K/Tape & Reel, 13-inch
LL4448-7 MiniMELF 2.5K/Tape & Reel, 7- inch
(Note 3)
