LL4148_12 Datasheet, PDF (1/3 Pages) Vishay Siliconix – Small Signal Fast Switching Diodes

Small Signal Diode
LL4148/LL4448/LL914B
500mW High Speed SMD Switching Diode
Mini-MELF (LL34)
HERMETICALLY SEALED GLASS
Features
—Fast switching device(Trr<4.0nS)
—Surface device type mounting
—Moisture sensitivity level 1
—Matte Tin (Sn) Terminal Finish
—Pb free version and RoHS compliant
—All External Surfaces are Corrosion Resistant and
Leads are Readily Solderable
Mechanical Data
—Case : Mini-MELF Package (JEDEC DO-213AC)
—High temperature soldering guaranteed : 270°C/10s
—Polarity : Indicated by cathode band
—Weight : approx. 31 mg
Dimensions
A
B
C
D
Unit (mm)
Min Max
3.30 3.70
1.40 1.60
0.25 0.40
1.25 1.40
Unit (inch)
Min Max
0.130 0.146
0.055 0.063
0.010 0.016
0.049 0.055
Ordering Information
Package
LL34
LL34
LL34
LL34
LL34
LL34
Part No.
LL4148 L0
LL4448 L0
LL914B L0
LL4148 L1
LL4448 L1
LL914B L1
Packing
10K / 13" Reel
10K / 13" Reel
10K / 13" Reel
2.5K / 7" Reel
2.5K / 7" Reel
2.5K / 7" Reel
Suggested PAD Layout
1.25
0.049
2.50
0.098
2.00
0.079
5.00
0.197
Maximum Ratings and Electrical Characteristics
Rating at 25°C ambient temperature unless otherwise specified.
Maximum Ratings
Type Number
Power Dissipation
Repetitive Peak Reverse Voltage
Reverse Voltage
Peak Forward Surge Current (Note 1) tp=1us
Non-Repetitive Peak Forward Current
Mean Forward Current
Forward Continuous Current
Repetitive peak Forward Current
Thermal Resistance (Junction to Ambient) (Note 2)
Junction and Storage Temperature Range
Symbol
PD
VRRM
VR
IFSM
IFM
IF(AV)
IF
IFRM
RθJA
TJ, TSTG
Value
500
100
75
2
450
150
300
500
300
-65 to + 200
Units
mW
V
V
A
mA
mA
mA
mA
°C/W
°C
Notes:1. Test Condition : 8.3ms Single half Sine-Wave Superimposed on Rated Load (JEDEC Method)
Notes:2. Valid provided that electrodes are kept at ambient temperature
Version : G12