UDZS Series
Diodes
Zener diode
UDZS Series
!
!
!
!Applications
Constant voltage control
!
!
!
!Features
1) Compact, 2-pin mini-mold type for high-density
mounting. (UMD2)
2) Non-wire bonding structure improves.
3) High demand voltage range (5.1V-10V) is
manufactured on high-efficient non-wire bonding
production line.
!
!
!
!Construction
Silicon epitaxial planar
!
!
!
!External dimensions
(Units : mm)
ROHM : UMD2
EIAJ : SC-76
JEDEC : SOD-323
(All leads have the same dimensions.)
-
0.1
+
0.2
0.7
+
0.1
-
0.05
0.1
* Type No. stamped on body in digital marking.
2.5
0.2
1.7
0.1
1.25
0.1
CATHODE MARK
0.3
0.05
!
!
!
!Absolute maximum ratings
(Ta = 25
C)
Parameter
200
150
-
55~
+
150
-
55~
+
150
mW
P
Tj
Tstg
Topr
Symbol
Limits
Unit
C
C
C
Power dissipation
Junction temperature
Storage temperature
Operating temperature
!
!
!
!Markings
(Type No.)
Product name
Type No.
Product name
UDZS 5.1B
UDZS 7.5B
2
A
2
H
UDZS 5.6B
UDZS 8.2B
2
C
2
J
UDZS 6.2B
UDZS 9.1B
2
E
2
L
UDZS 6.8B
UDZS 10B
2
F
5
0
Type No.
A
2
(Ex.) UDZS 5.1B
UDZS Series
Diodes
!
!
!
!Electrical characteristics
(Ta = 25
C)
Type
Min.
Max.
Max.
I
Z
(mA)
I
Z
(mA)
Max.
V
R
(V)
Max.
I
Z
(mA)
Zener voltage
V
Z
(V)
Operating resistance
Z
Z
(
)
Rising operating resistance
Z
Zk
(
)
Reverse current
I
R
(
A)
UDZS 5.1B
4.980
5.200
500
2
1.5
5
80
5
0.5
UDZS 5.6B
5.490
5.730
200
1
2.5
5
60
5
0.5
UDZS 6.2B
6.060
6.330
100
1
3.0
5
60
5
0.5
UDZS 6.8B
6.650
6.930
60
0.5
3.5
5
40
5
0.5
UDZS 7.5B
7.280
7.600
60
0.5
4.0
5
30
5
0.5
UDZS 8.2B
8.020
8.360
60
0.5
5.0
5
30
5
0.5
UDZS 9.1B
8.850
9.230
60
0.5
6.0
5
30
5
0.5
UDZS 10B
9.770
10.210
60
0.1
7.0
5
30
5
0.5
Notes) 1. The Zener voltage (V
z
) is measured 40ms after power is supplied.
2. The operating resistances (Z
z
, Z
zk
) are measured by superimposing a minute alternating current on the regulated current (I
z
).
!
!
!
!Electrical characteristic curves
(Ta = 25
C)
Fig.1 Zener voltage characteristics
10n
100n
1
10
100
1m
10m
100m
ZENER CURRENT :
I
Z
(A)
ZENER VOLTAGE : V
Z
(V)
0
5
10
15
5.1
5.6 6.2
6.8
7.5 8.2
9.1
10
300
200
100
0
0
50
25
100
150
PO
WER DISSIP
A
TION :
Pd (mW)
AMBIENT TEMPERATURE : Ta (
C)
Fig.2 Derating curve
Fig.3 Zener voltage-temp.
coefficient characteristics
UDZS series : V
Z
= 5.1V~10V
-
0.08
-
0.06
-
0.04
-
0.02
0.00
0.02
0.04
0.06
0.08
0.10
Iz=5mA
Iz=500
A
2
10
20
30
ZENER VOLTAGE : Vz (V)
TEMP. COEFFICIENT CHARACTERISTICS (% / C)
PDF 
ZIP