LL1.5 thru LL5.1
Voltage Stabilizers
MiniMELF (SOD-80C)
Cathode Mark
∅
0.063 (1.6)
0.055 (1.4)
0.019 (0.48)
0.011 (0.28)
0.197(5.00)
REF
0.049(1.25) MIN
Mounting Pad Layout
0.098(2.50)
MAX
0.079(2.00) MIN
0.142 (3.6)
0.134 (3.4)
Dimensions in inches and (millimeters)
Mechanical Data
Case:
MiniMELF Glass Case (SOD-80C)
Weight:
approx. 0.05g
Cathode band color:
Blue
Packaging codes/options:
D1/10K per 13” reel (8mm tape), 20K/box
D2/2.5K per 7” reel (8mm tape), 20K/box
Features
• Silicon Planar Stabilizer Diodes
• Monolithic integrated analog circuits in MiniMELF case,
designed for small power stabilizer and limitation circuits,
providing low dynamic resistance and high-quality
stabilization performance as well as low noise. In the
reverse direction, these devices show the behavior of
forward-biased silicon diodes.
• The end of the device marked with the cathode ring is to
be connected: LL1.5 and LL2 to the negative pole of the
supply voltage; LL2.4 thru LL5.1 to the positive pole of
the supply voltage
• These diodes are also available in DO-35 case with the
type designation ZTE1.5 … ZTE 5.1.
Maximum Ratings
Parameter
(T
A
= 25°C unless otherwise noted)
Symbol
Value
Unit
Operating Current (see Table “Characteristics”)
Inverse Current
Power dissipation at T
amb
= 25°C
Junction temperature
Storage temperature range
I
F
P
tot
T
J
T
S
100
300
(1)
150
– 55 to +150
m
A
W
°C
°C
Electrical and Thermal Characteristics
Parameter
Forward Voltage at I
F
= 10mA
Temperature Coefficient of the
stabilized voltage at I
Z
= 5mA
Thermal resistance junction to ambient air
LL1.5, LL2
LL2.4, LL5.1
(T
A
= 25°C unless otherwise noted)
Symbol
V
F
Min.
–
–
–
–
Typ.
–
– 26
– 34
–
Max.
1.1
–
–
400
(1)
Unit
V
10
–4
/°C
10
–4
/°C
°C/W
α
VZ
α
VZ
R
θJA
7/2/01
LL1.5 thru LL5.1
Voltage Stabilizers
Electrical Characteristics
Type
LL1.5
LL2
LL2.4
LL2.7
LL3
LL3.3
LL3.6
LL3.9
LL4.3
LL4.7
LL5.1
(T
A
= 25°C unless otherwise noted)
Operating Voltage
at I
Z
= 5mA
(2)
V
Z
(Ω)
1.35 ... 1.55
2.0 ... 2.3
2.2 ... 2.56
2.5 ... 2.9
2.8 ... 3.2
3.1 ... 3.5
3.4 ... 3.8
3.7 ... 4.1
4.0 ... 4.6
4.4 ... 5.0
4.8 ... 5.4
Dynamic resistance
at I
Z
= 5mA
r
zj
(Ω)
13(<20)
18(<30)
14(<20)
15(<20)
15(<20)
16(<20)
16(<25)
17(<25)
17(<25)
18(<25)
18(<25)
Permissable operating current
at T
amb
= 25°C
(1)
I
Z
max. (mA)
120
120
120
105
95
90
80
75
65
60
55
Notes:
(1) Valid provided that electrodes are kept at ambient temperature at a distance of 8mm from case
(2) Tested with pulses t
p
= 5ms
Industrial Control Electronics
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