LL4151 HIGH SPEED SWITCHING DIODE
FEATURES :
• High switching speed: max. 4 ns
• Reverse voltage:max. 50 V
• Peak reverse voltage:max. 75 V
• Pb / RoHS Free
MECHANICAL DATA :
Case: MiniMELF Glass Case (SOD-80)
Weight: approx. 0.05g
Maximum Ratings and Thermal Characteristics
(
Rating at
25
°
C ambient temperature unless otherwise specified
.)
Symbol Value Unit
VRM 75 V
VR50 V
Maximum Continuous Current IF200 V
Maximum Average Forward Current
Half Wave Rectification with Resistive Load , f ≥ 50Hz (1)
Maximum Surge Forward Current at t < 1s, Tj = 25°CIFSM 0.5 A
Maximum Power Dissipation (1) PD500 mW
Thermal Resistance Junction to Ambient Air (1) RθJA 350 °C/W
Maximum Junction Temperature TJ175 °C
Storage Temperature Range TS-65 to + 175 °C
Note: (1) Valid provided that electrodes are kept at ambient temperature
Electrical Characteristics
(T
J
= 25°C unless otherwise noted)
Parameter Symbol Min Typ Max Unit
IRVR = 50 V - - 0.05 µA
VR = 50 V , Tj = 150 °C- - 50 µA
Forward Voltage VFIF = 50 mA - - 1.0 V
Diode Capacitance Cd - - 2.5 pF
IF = 10 mA to IR = 10mA
to IR = 1mA, RL = 100Ω
Page 1 of 2 Rev. 02 : March 25, 2005
Reverse Recovery Time Trr
Parameter
Maximum Peak Reverse Voltage
Maximum Reverse Voltage
Reverse Current
IF(AV) 150 mA
ns4
f = 1MHz ; VR = 0
--
Test Condition
0.142(3.6)
0.134(3.4)
φ 0.063 (1.64)
0.055 (1.40)
0.019(0.48)
0.011(0.28)
Cathode Mark
MiniMELF (SOD-80C)
0.098 (2.50)
Max.
Dimensions in inches and ( millimeters )
Mounting Pad Layout
0.049 (1.25)Min.
0.197 (5.00)
REF
0.079 (2.00)Min.
RATING AND CHARACTERISTIC CURVES ( LL4151 )
FIG. 1 MAXIMUM FORWARD CURRENT FIG. 2 TYPICAL FORWARD VOLTAGE
VERSUS AMBIENT TEMPERATURE
FIG. 3 TYPICAL DIODE CAPACITANCE AS FIG. 4 TYPICAL REVERSE CURRENT
A FUNCTION OF REVERSE VOLTAGE VERSUS JUNCTION TEMPERATURE
Page 2 of 2 Rev. 02 : March 25, 2005
010 20
Reverse Voltage , VR (V)
0.4
0.5
1.2
Diode Capacitance , Cd
(pF)
00.4 1.2
Forward Voltage , VF (V)
0.01
10
1000
Forward Current , I
F
(mA)
0.1
1
100
0
0 100 200
Ambient Temperature , Ta (°C)
50
150
0.2 0.6 1.0 1.4
0.6
0.7
0.8
0.9
1.0
100
200
0.8
f = 1MHz;
TJ = 25°C
TJ = 25°C
AVERAGE FORWARD OUTPUT
CURRENT, mA
100 2000
1
10
102
103
104
Reverse Current , I
R
(nA)
Junction Temperature, Tj (°C)
