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PDF UCR18 Data sheet ( Hoja de datos )
| Número de pieza | UCR18 | |
| Descripción | Low Ohmic Compact Thick Film Chip Resistors | |
| Fabricantes | ROHM Semiconductor | |
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Low Ohmic Compact Thick Film Chip Resistors
UCR18 (3216(1206) size : 1 / 2W)
zFeatures
1) Chip resistors ideal for current detection. (11mΩ to 100mΩ)
2) Unique chip and terminal configuration reduces resistance shifting during the mounting process.
3) Superior rated power.
4) ROHM resistors have approved ISO9001- / ISO/TS 16949- certification
zRatings
Design and specifications are subject to change without notice. Carefully check the specification sheet before using or ordering it.
Item
Rated power
Conditions
Power must be derated according to the power derating curve in
Figure 1 when ambient temperature exceeds 70°C.
100
Specifications
0.5W (1 / 2W)
at 70°C
80
60
40
20
0 −55
0 70 100
AMBIENT TEMPERATURE (°C)
Fig.1
155
Rated voltage
The voltage rating is calculated by the following equation.
E= P×R
E: Rated voltage (V)
P: Rated power (W)
R: Nominal resistance (Ω)
Nominal resistance See Table 1.
Operating temperature
−55°C to + 155°C
Table 1
Resistance range
(Ω)
0.011 to 0.018 (E24)
0.020 to 0.039 (E24)
0.043 to 0.091 (E24)
0.1
Resistance tolerance
F (±1%)
J (±5%)
Special specification
S
L
Resistance temperature
coefficient (ppm/°C)
0 to 350
0 to 200
0 to 150
0 to 150
zBefore using components in circuits where they will be exposed to transients such as pulse loads (short–duration, high– level loads), be certain to evaluate the
component in the mounted state. In addition, the reliability and performance of this component cannot be guaranteed if it is used with a steady state voltage that
is greater than its rated voltage.
www.rohm.com
○c 2009 ROHM Co., Ltd. All rights reserved.
1/4
2009.03 - Rev.B
1 page  
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Notice
Notes
No copying or reproduction of this document, in part or in whole, is permitted without the
consent of ROHM Co.,Ltd.
The content specified herein is subject to change for improvement without notice.
The content specified herein is for the purpose of introducing ROHM's products (hereinafter
"Products"). If you wish to use any such Product, please be sure to refer to the specifications,
which can be obtained from ROHM upon request.
Examples of application circuits, circuit constants and any other information contained herein
illustrate the standard usage and operations of the Products. The peripheral conditions must
be taken into account when designing circuits for mass production.
Great care was taken in ensuring the accuracy of the information specified in this document.
However, should you incur any damage arising from any inaccuracy or misprint of such
information, ROHM shall bear no responsibility for such damage.
The technical information specified herein is intended only to show the typical functions of and
examples of application circuits for the Products. ROHM does not grant you, explicitly or
implicitly, any license to use or exercise intellectual property or other rights held by ROHM and
other parties. ROHM shall bear no responsibility whatsoever for any dispute arising from the
use of such technical information.
The Products specified in this document are intended to be used with general-use electronic
equipment or devices (such as audio visual equipment, office-automation equipment, commu-
nication devices, electronic appliances and amusement devices).
The Products specified in this document are not designed to be radiation tolerant.
While ROHM always makes efforts to enhance the quality and reliability of its Products, a
Product may fail or malfunction for a variety of reasons.
Please be sure to implement in your equipment using the Products safety measures to guard
against the possibility of physical injury, fire or any other damage caused in the event of the
failure of any Product, such as derating, redundancy, fire control and fail-safe designs. ROHM
shall bear no responsibility whatsoever for your use of any Product outside of the prescribed
scope or not in accordance with the instruction manual.
The Products are not designed or manufactured to be used with any equipment, device or
system which requires an extremely high level of reliability the failure or malfunction of which
may result in a direct threat to human life or create a risk of human injury (such as a medical
instrument, transportation equipment, aerospace machinery, nuclear-reactor controller,
fuel-controller or other safety device). ROHM shall bear no responsibility in any way for use of
any of the Products for the above special purposes. If a Product is intended to be used for any
such special purpose, please contact a ROHM sales representative before purchasing.
If you intend to export or ship overseas any Product or technology specified herein that may
be controlled under the Foreign Exchange and the Foreign Trade Law, you will be required to
obtain a license or permit under the Law.
Thank you for your accessing to ROHM product informations.
More detail product informations and catalogs are available, please contact us.
ROHM Customer Support System
http://www.rohm.com/contact/
www.rohm.com
© 2009 ROHM Co., Ltd. All rights reserved.
R0039A
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| PDF Descargar | [ Datasheet UCR18.PDF ] | |
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