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UDZ2V0B-UDZ56B
SURFACE MOUNT PRECISION ZENER DIODE
Features
UNDER DEVELOPMENT
· Ultra-Small Surface Mount Package
· Ideally suited for Automated Assembly
Processes
· Very Sharp Breakdown Characteristics
· Very Tight Tolerance on Zener Breakdown Voltage
Mechanical Data
H
· Case: SOD-323, Plastic
· Case Material - UL Flammability Rating
Classification 94V-0
· Moisture sensitivity: Level 1 per J-STD-020A
· Terminals: Solderable per MIL-STD-202,
Method 208
· Polarity: Cathode Band
· Marking: Marking Code (See Table on Page 2)
· Weight: 0.004 grams (approx.)
· Ordering Information, See Below
C
Maximum Ratings @ TA = 25°C unless otherwise specified
D
G
A
B
E
SOD-323
Dim Min Max
A 2.30 2.70
J B 1.60 1.80
C 1.20 1.40
D 1.05 Typical
E 0.25 0.35
G 0.20 0.40
H 0.10 0.15
J 0.05 Typical
a 0° 8°
All Dimensions in mm
Characteristic
Power Dissipation (Note 2)
Thermal Resistance, Junction to Ambient Air (Note 2)
Operating and Storage Temperature Range
Symbol
Pd
RqJA
Tj, TSTG
Value
200
625
-65 to +150
Unit
mW
°C/W
°C
Ordering Information (Note 1)
Device
(Type Number)-7*
Packaging
SOD-323
Shipping
3000/Tape & Reel
* Add “-7” to the appropriate type number in Table 1 from Sheet 2 example: 6.2V Zener = UDZ6V2B-7.
Notes:
1. For Packaging Details, go to our website at http://www.diodes.com/datasheets/ap02007.pdf.
2. Part mounted on FR-4 PC board with recommended pad layout, which can be found on our website
at http://www.diodes.com/datasheets/ap02001.pdf.
Marking Information
XX
XX = Product Type Marking Code
DS30290 Rev. 5 - 1
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UDZ2V0B-UDZ56B

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Electrical Characteristics @ TA = 25°C unless otherwise specified
Type
Number
UDZ2V0B
UDZ2V2B
UDZ2V4B
UDZ2V7B
UDZ3V0B
UDZ3V3B
UDZ3V6B
UDZ3V9B
UDZ4V3B
UDZ4V7B
UDZ5V1B
UDZ5V6B
UDZ6V2B
UDZ6V8B
UDZ7V5B
UDZ8V2B
UDZ9V1B
UDZ10B
UDZ11B
UDZ12B
UDZ13B
UDZ15B
UDZ16B
UDZ18B
UDZ20B
UDZ22B
UDZ24B
UDZ27B
UDZ30B
UDZ33B
UDZ36B
UDZ39B
UDZ43B
UDZ47B
UDZ51B
UDZ56B
Marking
Code
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
BG
BH
BI
BJ
BK
BL
BM
BN
BO
BP
BQ
BR
BS
BT
BU
BV
BW
BX
BY
BZ
U1
Zener Voltage Range
(Note 3)
VZT @ IZT
Min (V) Max (V)
2.020
2.200
2.220
2.410
2.430
2.630
2.690
2.910
3.010
3.220
3.320
3.530
3.600
3.845
3.890
4.160
4.170
4.430
4.550
4.750
4.980
5.200
5.490
5.730
6.060
6.330
6.650
6.930
7.280
7.600
8.020
8.360
8.850
9.230
9.770
10.210
10.760 11.220
11.740 12.240
12.910 13.490
14.340 14.980
15.850 16.510
17.560 18.350
19.520 20.390
21.540 22.470
23.720 24.780
26.190 27.530
29.190 30.690
32.150 33.790
35.070 36.870
38.025 39.975
41.925 44.075
45.825 48.175
49.725 52.275
54.600 57.400
IZT
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
5
2
2
2
2
Maximum Zener Impedance
(Note 4)
ZZT @ IZT
ZZK @ IZK
W
100 1000
100 1000
100 1000
110 1000
120 1000
120 1000
100 1000
100 1000
100 1000
100 800
80 500
60 200
60 100
40 60
30 60
30 60
30 60
30 60
30 60
30 80
37 80
42 80
50 80
65 80
85 100
100 100
120 120
150 150
200 200
250 250
300 300
300 350
300 400
300 450
350 500
350 500
IZK
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
0.5
0.5
0.5
0.5
0.5
Maximum
Reverse
Current
(Note 3)
IR VR
uA V
120 0.5
120 0.7
120 1.0
100 1.0
50 1.0
20 1.0
10 1.0
5 1.0
5 1.0
2 1.0
2 1.5
1 2.5
1 3.0
0.5 3.5
0.5 4.0
0.5 5.0
0.5 6.0
0.1 7.0
0.1 8.0
0.1 9.0
0.1 10.0
0.1 11.0
0.1 12.0
0.1 13.0
0.1 15.0
0.1 17.0
0.1 19.0
0.1 21.0
0.1 23.0
0.1 25.0
0.1 27.0
0.1 29.0
0.1 32.0
0.1 35.0
0.1 38.0
0.1 42.0
Notes: 3. Short duration test pulse used to minimize self-heating effect.
4. The zener impedances (ZZT, ZZK) are measured by superimposing a minute alternating current on the regulated current (IZ).
UNDER DEVELOPMENT
DS30290 Rev. 5 - 1
2 of 4
UDZ2V0B-UDZ56B

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250 1000
200 100
150 10
100 1.0
50 0.1
0
0
100m
100
TA, AMBIENT TEMPERATURE, (°C)
Fig. 1 Power Derating Curve
200
10m
1m
100m
10m
1m
UDZ6V2B
UDZ8V2B
100n
4.0
5.0 6.0
7.0 8.0 9.0 10.0
VZ, ZENER BREAKDOWN VOLTAGE (V)
Fig. 3 Typical Reverse Characteristics, UDZ6V2B - UDZ8V2B
100m
0.01
0
0.2 0.4 0.6 0.8 1.0 1.2
VF, INSTANTANEOUS FORWARD VOLTAGE (V)
Fig. 2 Typical Forward Characteristics
100m
UDZ11B UDZ12B
10m
1m
100m
UDZ10B
UDZ13B
10m
1m
100n
8.0
9.0 10.0 11.0 12.0 13.0 14.0
VZ, ZENER BREAKDOWN VOLTAGE (V)
Fig. 4 Typical Reverse Characteristics, UDZ10B - UDZ13B
100m
10m
10m
1m
100m
UDZ20B
UDZ22B
1m
100m
UDZ24B
10m
10m
1m 1m
100n
18 19 20 21 22 23 24
100n
22 23 24 25 26 27 28
VZ, ZENER BREAKDOWN VOLTAGE (V)
Fig. 5 Typical Reverse Characteristics, UDZ20B - UDZ22B
VZ, ZENER BREAKDOWN VOLTAGE (V)
Fig. 6 Typical Reverse Characteristics, UDZ24B
UNDER DEVELOPMENT
DS30290 Rev. 5 - 1
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UDZ2V0B-UDZ56B

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100m
0.12
10m
0.10
0.08
0.06
1m
UDZ47B
0.04
100m
10m
0.02
0
-0.02
-0.04
1m
-0.06
100n
38 40 42 44 46 48 50
VZ, ZENER BREAKDOWN VOLTAGE (V)
Fig. 7 Typical Reverse Characteristics, UDZ47B
0.12
-0.08
0 2 4 6 8 10
VZ, ZENER VOLTAGE (V)
Fig. 8 Typical Temperature Coefficient of
Zener Voltage vs. Zener Voltage, UDZ6V2B-UDZ10B
0.12
0.10 0.10
0.08
0.06
0.08
0.06
0.04 0.04
0.02
0
-0.02
0.02
0
-0.02
-0.04
-0.04
-0.06
-0.08
10 12 14 16 18 20
VZ, ZENER VOLTAGE (V)
Fig. 9 Typical Temperature Coefficient of
Zener Voltage vs. Zener Voltage, UDZ10B-UDZ20B
0.12
-0.06
-0.08
20
22 24 26 28
VZ, ZENER VOLTAGE (V)
Fig. 10 Typical Temperature Coefficient of
Zener Voltage, UDZ20B-UDZ30B
30
0.10
0.08
0.06
0.04
0.02
0 UNDER DEVELOPMENT
-0.02
-0.04
-0.06
-0.08
30
34 38 42 46
VZ, ZENER VOLTAGE (V)
Fig. 11 Typical Temperature Coefficient of
Zener Voltage, UDZ30B-UDZ47B
50
*Note: Additional Plots for Reverse Characteristics and Temperature Coefficient of Zener Voltage shall be available soon.
DS30290 Rev. 5 - 1
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UDZ2V0B-UDZ56B