Formosa MS LL55C Series
Formosa MS 1
Zener diode
Features
1. Small surface mounting type
2. High reliability
Applications
Voltage stabilization
Construction
Silicon epitaxial planar
Absolute Maximum Ratings
Tj=25? Parameter Test Conditions Type Symbol Value Unit
Power dissipation RthJA?300K/W PV 500 mW
Z-current IZ PV/VZ mA
Junction temperature Tj 175 ?
Storage temperature range Tstg -65~+175
?
Maximum Thermal Resistance
Tj=25? Parameter Test Conditions Symbol Value Unit
Junction ambient on PC board 50mm×50mm×1.6mm RthJA 500 K/W
Electrical Characteristics
Tj=25? Parameter Test Conditions Type Symbol
Min
Typ
Max
Unit
Forward voltage IF=200mA VF 1.5
V
Formosa MS LL55C Series
Formosa MS 2
Type VZnom IZT for VZT and r
zjT
rzjK at I
ZK
IR and I
R at V
R
TKVZ
LL55C.
V mA
V1) O O mA
µA ?A2)
V %/K
2V4 2.4 5 2.28~2.56
<85 <600 1 <50 <100
1 -0.09~-0.06
2V7 2.7 5 2.5~2.9 <85 <600 1 <10 <50 1 -0.09~-0.06
3V0 3.0 5 2.8~3.2 <90 <600 1 <4 <40 1 -0.08~-0.05
3V3 3.3 5 3.1~3.5 <90 <600 1 <2 <40 1 -0.08~-0.05
3V6 3.6 5 3.4~3.8 <90 <600 1 <2 <40 1 -0.08~-0.05
3V9 3.9 5 3.7~4.1 <90 <600 1 <2 <40 1 -0.08~-0.05
4V3 4.3 5 4.0~4.6 <90 <600 1 <1 <20 1 -0.06~-0.03
4V7 4.7 5 4.4~5.0 <80 <600 1 <0.5
<10 1 -0.05~+0.02
5V1 5.1 5 4.8~5.4 <60 <550 1 <0.1
<2 1 -0.02~+0.02
5V6 5.6 5 5.2~6.0 <40 <450 1 <0.1
<2 1 -0.05~+0.05
6V2 6.2 5 5.8~6.6 <10 <200 1 <0.1
<2 2 0.03~0.06
6V8 6.8 5 6.4~7.2 <8 <150 1 <0.1
<2 3 0.03~0.07
7V5 7.5 5 7.0~7.9 <7 <50 1 <0.1
<2 5 0.03~0.07
8V2 8.2 5 7.7~8.7 <7 <50 1 <0.1
<2 6.2 0.03~0.08
9V1 9.1 5 8.5~9.6 <10 <50 1 <0.1
<2 6.8 0.03~0.09
10 10 5 9.4~10.6
<15 <70 1 <0.1
<2 7.5 0.03~0.1
11 11 5 10.4~11.6
<20 <70 1 <0.1
<2 8.2 0.03~0.11
12 12 5 11.4~12.7
<20 <90 1 <0.1
<2 9.1 0.03~0.11
13 13 5 12.4~14.1
<26 <110 1 <0.1
<2 10 0.03~0.11
15 15 5 13.8~15.6
<30 <110 1 <0.1
<2 11 0.03~0.11
16 16 5 15.3~17.1
<40 <170 1 <0.1
<2 12 0.03~0.11
18 18 5 16.8~19.1
<50 <170 1 <0.1
<2 13 0.03~0.11
20 20 5 18.8~21.2
<55 <220 1 <0.1
<2 15 0.03~0.11
22 22 5 20.8~23.3
<55 <220 1 <0.1
<2 16 0.04~0.12
24 24 5 22.8~25.6
<80 <220 1 <0.1
<2 18 0.04~0.12
27 27 5 25.1~28.9
<80 <220 1 <0.1
<2 20 0.04~0.12
30 30 5 28~32 <80 <220 1 <0.1
<2 22 0.04~0.12
33 33 5 31~35 <80 <220 1 <0.1
<2 24 0.04~0.12
36 36 5 34~38 <80 <220 1 <0.1
<2 27 0.04~0.12
39 39 2.5
37~41 <90 <500 0.5
<0.1
<5 30 0.04~0.12
43 43 2.5
40~46 <90 <600 0.5
<0.1
<5 33 0.04~0.12
47 47 2.5
44~50 <110 <700 0.5
<0.1
<5 36 0.04~0.12
51 51 2.5
48~54 <125 <700 0.5
<0.1
<10 39 0.04~0.12
56 56 2.5
52~60 <135 <1000
0.5
<0.1
<10 43 0.04~0.12
62 62 2.5
58~66 <150 <1000
0.5
<0.1
<10 47 0.04~0.12
68 68 2.5
64~72 <200 <1000
0.5
<0.1
<10 51 0.04~0.12
75 75 2.5
70~79 <250 <1500
0.5
<0.1
<10 56 0.04~0.12
1) Tighter tolerances available request:
LL55A… ±1% of VZnom
LL55B… ±2% of VZnom
LL55F… ±3% of VZnom
2) at Tj=150?
Formosa MS LL55C Series
Formosa MS 3
Characteristics (Tj=25? unless otherwise specified)
Formosa MS LL55C Series
Formosa MS 4
Formosa MS LL55C Series
Formosa MS 5
Dimensions in mm
Cathode band
Glass Case
Mini Melf / SOD 80
JEDEC DO 213 AA
