Pb
RoHS
COMPLIANCE
RoHS
COMPLIANCE
LS4448 /LS4148/LS914B
500mW Hermetically Sealed Glass Fast
Switching Diodes
QUADRO MINI MELF
Features
Fast switching device (TRR< 4.0nS)
Quadro Mini-MELF package
Surface device type mounting
Hermetically sealed glass
Compression bonded construction
All external surfaces are corrosion
resistant and leads are readily solderable
RoHS compliant
Matte Tin (Sn) lead finish
1
st band indicates cathode
Dimensions in inches and (millimeters)
Maximum Ratings and Electrical Characteristics
Rating at 25oCambient temperature unless otherwise specified.
Maximum Ratings
Type Number Symbol Value Units
Power Dissipation Pd 500 mW
Working Inverse Voltage WIV 75 V
Non-repetitive Peak Forward Current IFM 450 mA
Average Rectified Current Io 150 mA
Peak Forward Surge Current IFSURGE 2 A
Operating Junction Temperature TJ 175 OC
Storage Temperature Range TSTG -65 to + 200 OC
Electrical Characteristics
Type Number Symbol Min Max Units
Breakdown Voltage IR=100uA
IR=5uA BV 100
75 V
Forward Voltage
LS4448, LS914B IF=5.0mA
LS4148 IF= 10mA
LS4448, LS914B IF =100mA VF 0.62
-
0.72
1.0
1.0 V
Reverse Leakage Current VR=20V
VR=75V IR
25
5 nA
uA
Junction Capacitance VR=0, f=1.0MHz Cj - 4.0 pF
Reverse Recovery Time (Note 1) trr - 4.0 nS
Notes: 1. Reverse Recovery Test Conditions: IF=IR=10mA, RL=100Ω, IRR=1mA
Version: B07
RATINGS AND CHARACTERISTIC CURVES (LS4448/LS4148/LS914B)
Figure 1. Forward Current vs. Forward Voltage
Figure 2. Forward Current vs. Forward Voltage
0 0.4 0.81.2 1.6
0.1
1
10
100
1000
I
F
- Forward Current (mA)
V
F
- Forward Voltage (V)2.0
LS4148
T
j
= 25 °C
Scattering Limit
LS4448
T
j
= 25 °C
Scattering Limit
0 0.4 0.81.2 1.6
0.1
1
10
100
1000
I
F
- Forward Current (mA)
V
F
- Forward Voltage (V)2.0
Figure 3. Reverse Current vs. Reverse Voltage
Figure 4. Diode Capacitance vs. Reverse Voltage
1
10
100
1000
IR- Reverse Current (nA)
VR- Reverse Voltage (V)
10 1 100
Tj = 25 °C
Scattering Limit
0.1 1 10
0
0.5
1.0
1.5
2.0
3.0
CD - Diode Capacitance (pF)
100
2.5
VR - Reverse Voltage (V)
f = 1 MHz
Tj = 25 °C
Version: B07
