PMR03 Resistors Ultra low ohmic resistors for current detection PMR03 zOutline PMR03 in the 0603 package (1.6x0.8mm) works at the rated power of 0.25W, which is the first in the industry for its size using metal-plate as resistive element and is achieved by Rohm’s unique production method. The suitable application is the battery meter in portable appliances, and also the current control circuit (which is down-sizing these days) and the over-current protection circuit. zFeatures 1) Metal-plate, which is an excellent material in view of electrical characteristics, is employed as resistive element by Rohm’s unique production method. 2) 0.25W is achieved; the industry’s first for 0603 sized metal-plate type. 3) 150ppm/°C of TCR (Temperature Coefficient of Resistance) is realized at ultra-low resistance of 10mΩ 4) Completely Pb free product zApplications Note PC, HDD, mobile phone, small battery-unit, charger, DC/DC converter, general power-supply units zRatings Item Rated power Conditions Specifications Power must be derated according to the power derating curve in Figure 1 when ambient temperature exceeds 70°C. 0.25W (1 / 4W) at 70°C 100 POWER LOAD (%) 80 60 40 20 0 −55 0 70 100 125 155 AMBIENT TEMPERATURE (°C) Fig.1 Rated voltage Rated current Rated voltage and current are determined from the following. E= P×R I= P / R E: Rated voltage (V) I: Rated current (A) P: Rated power (W) R: Resistance (Ω) 10mΩ Nominal resistance Tolerance J ±5% Temperature coefficient +25/−55/+25/+125°C (JIS C 5201-1 4.8) ±150ppm/°C Operating temperature −55°C to +155°C 1/2 PMR03 Resistors zDimensions（Unit : mm） L W Part No. Size code L W t b PMR03 1608 (0603) 1.60±0.15 0.80±0.15 0.25±0.15 0.35±0.15 t b b zProduct designation P M R 0 3 E Z P Part No. J Resistance tolerance J ±5% I O L U Special part number U Nominal resistance Resistance code, 3 or 4 digits. 10mΩ Resistance tolerance J Resistance code 3 digits : Resistance value 10mΩ 10L Packaging Specifications Code Part No. Code PMR03 EZP Resistance tolerance J(±5%) Packaging specifications Reel Basic ordering unit (pcs) Embossed tape (4mm Pitch) φ180mm (7inch) 5,000 Reel (φ180) : Compatible with JEITA standard "EIAJ ET-7200B" : Standard product zPackaging Reel Taping P0 P2 P1 φD0 E F W 02 04 06 08 06 D 04 B 02 A 08 B0 A0 Top tape Base paper (Bottom tape) Components Cavity T2 C (Unit : mm) Label EIAJ ET-7200B compliant (Unit : mm) W 8.0±0.3 F E A0 B0 3.5±0.05 1.75±0.1 1.1±0.1 1.9±0.1 A B C D D0 P0 P1 P2 T2 0 φ180 −1.5 +1 φ60 0 +1.0 9 0 φ13±0.2 +0.1 φ1.5 0 4.0±0.1 4.0±0.1 2.0±0.05 Max. 1.1 2/2 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 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 which 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. It is our top priority to supply products with the utmost quality and reliability. However, there is always a chance of failure due to unexpected factors. Therefore, please take into account the derating characteristics and allow for sufficient safety features, such as extra margin, anti-flammability, and fail-safe measures when designing in order to prevent possible accidents that may result in bodily harm or fire caused by component failure. ROHM cannot be held responsible for any damages arising from the use of the products under conditions out of the range of the specifications or due to non-compliance with the NOTES specified in this catalog. Thank you for your accessing to ROHM product informations. More detail product informations and catalogs are available, please contact your nearest sales office. ROHM Customer Support System www.rohm.com Copyright © 2007 ROHM CO.,LTD. THE AMERICAS / EUPOPE / ASIA / JAPAN Contact us : webmaster@ rohm.co. jp 21, Saiin Mizosaki-cho, Ukyo-ku, Kyoto 615-8585, Japan TEL : +81-75-311-2121 FAX : +81-75-315-0172 Appendix1-Rev2.0