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UDZ Series
Diodes
Zener diode
UDZ Series
!Applications Constant voltage control !External dimensions (Units : mm)
CATHODE MARK
2.50.2
!Features 1) Compact, 2-pin mini-mold type for high-density mounting. (UMD2) 2) Compatible with chip mounter for automated production. 3) High reliability
1.70.1
0.30.05 1.250.1 0.7 +0.2 -0.1
0.1 +0.1 -0.05
(All pins have the same dimensions.)
Type No. and date of manufacture stamped on body in digital marking.
ROHM : UMD2 EIAJ : SC-76 JEDEC : SOD-323
!Construction Silicon epitaxial planar
!Absolute maximum ratings (Ta=25C)
Parameter Power dissipation Junction temperature Storage temperature Operating temperature Symbol P Tj Tstg Topr Limits 200 150 -55+150 -55+150 Unit mW C C C
!Markings (Type No.)
Product name UDZ 2.0B UDZ 2.2B UDZ 2.4B UDZ 2.7B UDZ 3.0B UDZ 3.3B UDZ 3.6B UDZ 3.9B UDZ 4.3B UDZ 4.7B UDZ 5.1B
(Ex.) UDZ 2.0B 0 2
Type No. 0 1 2 3 4 5 6 7 8 9 A 2 2 2 2 2 2 2 2 2 2 2
Product name UDZ 5.6B UDZ 6.2B UDZ 6.8B UDZ 7.5B UDZ 8.2B UDZ 9.1B UDZ 10B UDZ 11B UDZ 12B UDZ 13B UDZ 15B
Type No. C E F H J L 0 1 2 3 4 2 2 2 2 2 2 5 5 5 5 5
Product name UDZ 16B UDZ 18B UDZ 20B UDZ 22B UDZ 24B UDZ 27B UDZ 30B UDZ 33B UDZ 36B
Type No. 5 6 7 8 9 A C E F 5 5 5 5 5 5 5 5 5
UDZ Series
Diodes
!Electrical characteristics (Ta=25C)
Zener voltage subdivision Type Min. UDZ 2.0B UDZ 2.2B UDZ 2.4B UDZ 2.7B UDZ 3.0B UDZ 3.3B UDZ 3.6B UDZ 3.9B UDZ 4.3B UDZ 4.7B UDZ 5.1B UDZ 5.6B UDZ 6.2B UDZ 6.8B UDZ 7.5B UDZ 8.2B UDZ 9.1B UDZ 10B UDZ 11B UDZ 12B UDZ 13B UDZ 15B UDZ 16B UDZ 18B UDZ 20B UDZ 22B UDZ 24B UDZ 27B UDZ 30B UDZ 33B UDZ 36B 2.020 2.220 2.430 2.690 3.010 3.320 3.600 3.890 4.170 4.550 4.980 5.490 6.060 6.650 7.280 8.020 8.850 9.770 10.760 11.740 12.910 14.340 15.850 17.560 19.520 21.540 23.720 26.190 29.190 32.150 35.070 VZ(V) Max. 2.200 2.410 2.630 2.910 3.220 3.530 3.845 4.160 4.430 4.750 5.200 5.730 6.330 6.930 7.600 8.360 9.230 10.210 11.220 12.240 13.490 14.980 16.510 18.350 20.390 22.470 24.780 27.530 30.690 33.790 36.870 IZ (mA) 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Operating resistance ZZ () Max. 100 100 100 110 120 120 100 100 100 100 80 60 60 40 30 30 30 30 30 30 37 42 50 65 85 100 120 150 200 250 300 IZ (mA) 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 Rising operating resistance Zzk () Max. 1000 1000 1000 1000 1000 1000 1000 1000 1000 800 500 200 100 60 60 60 60 60 60 80 80 80 80 80 100 100 120 150 200 250 300 IZ (mA) 0.5 0.5 0.5 0.5 0.5 0.5 1.0 1.0 1.0 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 Reverse current IR (A) Max. 120 120 120 100 50 20 10 5 5 2 2 1 1 0.5 0.5 0.5 0.5 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 0.1 VR (V) 0.5 0.7 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.5 2.5 3.0 3.5 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 15.0 17.0 19.0 21.0 23.0 25.0 27.0
1. The Zener voltage (Vz) is measured 40 ms after power is supplied. 2. The operating resistances (Zz, Zzk) are measured by superimposing a minute alternating current on the regulated current (Iz).
UDZ Series
Diodes
!Electrical characteristic curves (Ta=25C)
5.1 5.6
100m
6.2
6.8
8.2 9.1
7.5
15
11
10
12
13
16
18
20
20
10m
1m
ZENER CURRENT : IZ (A)
100
10
1
100n
4.7
2.4
10n 0
2.0
2.2
2.7
5
3.0
3.3
4.3
10
15
22
25
30
35
40
ZENER VOLTAGE : VZ (V)
Fig.1 Zener voltage characteristics
300
POWER DISSIPATION : Pd (mW)
TEMP. COEFFICIENT CHARACTERISTICS (% / C)
0.10
Iz=5mA
0.08 0.06 0.04 0.02 0.00 -0.02 -0.04 -0.06 -0.08 2 10 20
Iz=500A
200
30
100
ZENER VOLTAGE : Vz (V)
0 0
25
50
100
150
AMBIENT TEMPERATURE : Ta (C)
Fig.2 Derating curve
Fig.3 Zener voltage temp.coefficient characteristics

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