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UMZ12N
Diodes
Zener diode
UMZ12N
Applications Constant voltage control Noise suppression on single line External dimensions (Units : mm)
2.00.2 1.30.1 0.65 0.65 0.3 0.90.1 0.6
Construction Silicon epitaxial planar
ROHM : UMD3 EIAJ : SC - 70 JEDEC : SOT - 323
Circuit
Absolute maximum ratings (Ta=25C)
Parameter Power dissipation Junction temperature Storage temperature
Total of 2 elements
Symbol P Tj Tstg
Limits 200 150 -55+150
Unit mW C C
Electrical characteristics (Ta=25C)
Parameter Zener voltage Reverse current Operating resistance Rising operating resistance Symbol VZ IR ZZ ZZK Min. 11.0 - - - Max. 13.0 0.10 30 80 Unit V A IZ=5mA VR=9V IZ=5mA IZ=0.5mA Conditions
6V
Features 1) Small surface mounting type. (UMD3) 2) Multiple diodes with common anode configuration. 3) High reliability.
0.1Min.
1.250.1
2.10.1
00.1
0.30.1
0.150.05
UMZ12N
Diodes
Electrical characteristic curves (Ta=25C)
10
DYNAMIC IMPEADANCE : ZZ ()
100
FORWARD CURRENT : IF (mA)
10
ZENER CURRENT : IZ (mA)
1
1
Ta=-25C Ta=25C Ta=75C Ta=125C
Ta=25C
0.1
0.01
0.01 0
11.0
12.0
13.0
14.0
15.0
1 0.1
1 ZENER CURRENT : IZ (mA)
10
0
0.3
0.4
Ta= -25 C Ta= 25 C Ta= 75 C T a= 125 C
10
0.1
0.5
0.6
0.7
0.8
0.9
1.0
ZENER VOLTAGE : VZ (V)
FORWARD VOLTAGE : VF (V)
Fig.1 Zener voltage characteristics
Fig.2 Operating resistance Zener current characteristics
Fig.3 Forward characteristics
300
POWER DISSIPATION : Pd (mW)
200
100
0 0
25
50
100
150
AMBIENT TEMPERATURE : Ta (C)
Fig.4 Derating curve
Appendix
Notes
No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design.
The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction.
Appendix1-Rev1.0

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