Ultra-low Ohmic Resistors for Current Detection PMR50 Features 1) Ultra low-ohmic resistance range (1m~) 2) Improved current detection accuracy by trimming-less structure. Highly recommended for large current / High speed switching circuit. 3) Completely Pb free product 4) ISO9001- / ISO/TS 16949- approved Rating Item Conditions Specifications For resistors operated at the ambient temperature in excess of 70℃, the load shall be derated in accordance with Fig.1 Rated power 1W 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: Rated voltage (V) I : Rated current (A) P: Rated power (W) R: Resistance (Ω) E= P×R E= P / R Nominal resistance See Table 1. −55°C to +155°C Operating temperature Table.1 RESISTANCE (mΩ) 1,2,3,4 5,6,7,8,9,10 TOLERANCE SPECIAL CODE F (±1%) V J (±5%) TEMPERATURE COEFFICIENT (ppm / ˚C) ±100 U www.rohm.com c 2010 ROHM Co., Ltd. All rights reserved. ○ 1/3 2010.10 - Rev.D PMR50 Data Sheet Characteristics Guaranteed value Resistor type Item Test conditions (JIS C 5201-1) F : ±1% J : ±5% Resistance JIS C 5201-1 4.5 Measuring method : Measure under terminations by 4 probes. Fig.2 (Under terminations) probes Variation of resistance with temperature JIS C 5201-1 4.8 Measurement : 25 / -55 / +25 / +125°C See Table.1 ± (2.0%+0.0005Ω) JIS C 5201-1 4.13 Rated voltage (current) ×2.5, 2s. A new uniform coating of minimum of 95% of the surface being immersed and no soldering damage. JIS C 5201-1 4.17 Rosin·Ethanol (25%WT) Soldering condition : 235±5°C Duration of immersion : 2.0±0.5s. Overload Solderability Resistance to soldering heat ± (1.0%+0.0005Ω) No remarkable abnormality on the appearance. Rapid change of temperature ± (1.0%+0.0005Ω) JIS C 5201-1 4.19 Test temp. : −55°C to +125°C 5cyc ± (3.0%+0.0005Ω) JIS C 5201-1 4.24 40°C, 93%RH Test time : 56days ± (3.0%+0.0005Ω) JIS C 5201-1 4.25.1 Rated power, 70°C 1.5h : ON − 0.5h : OFF Test time : 1,000h to 1,048h ± (3.0%+0.0005Ω) JIS C 5201-1 4.25.3 155°C Test time : 1,000h to 1,048h ± (0.5%+0.0005Ω) JIS C 5201-1 4.29 23°C±5°C Solvent : 2-propanol Damp heat, steady state Endurance at 70°C Endurance Component Solvent Resistance Bend strength of the end face plating www.rohm.com c 2010 ROHM Co., Ltd. All rights reserved. ○ JIS C 5201-1 4.18 Soldering condition : 260±5°C Duration of immersion : 10±1s. JIS C 5201-1 4.33 Without open. 2/3 2010.10 - Rev.D PMR50 Data Sheet Dimensions&Construction （The Surface） Measure Resistance 1L00 W a L ± 0.20 c b 2mΩ 0.42 1.30 3mΩ 0.52 1.40 4mΩ 0.42 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 1.40 7mΩ 0.32 1.10 8mΩ 0.32 0.90 9mΩ 0.32 1.10 10mΩ 0.32 0.90 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ⑤ ② 1.05 0.50 0.32 ●●● ● ●●● L c ± 0.20 1.40 0.42 2.50 5.00 6mΩ t ③ ④ b ± 0.20 1.85 1.95 (Unit:mm) Material No. ●●● ● ●●● （The cross section） ① a ± 0.20 0.52 ⑥ ⑤ ② t ± 0.15 1mΩ 5mΩ （The back） W ± 0.20 ① Resistive metal element(Ni-Cu/Ni-Cr Alloy) ② Primary electrode(Cu) ③ Middle electrode(Ni) ④ External electrode(Sn) ⑤ Overcoat(Resin:Black) ⑥ Marking(Resin:Yellow) Part No. Explanation P M R 5 0 H Z P Part No. J Resistance tolerance V Special part number F ±1% U J ±5% V Nominal resistance 5 to 10mΩ 1 to 4mΩ Resistance code, 3 or 4 digits. Resistance tolerance Resistance code F J : : 4 digits 3 digits Resistance Tolerance J F 1L0 1L00 2L0 2L00 3L0 3L00 4L0 4L00 5L0 5L00 6L0 6L00 7L0 7L00 8L0 8L00 9L0 9L00 10L 10L0 Resistance Value (Ω) 1mΩ 2mΩ 3mΩ 4mΩ 5mΩ 6mΩ 7mΩ 8mΩ 9mΩ 10mΩ Packaging Specifications Code Part No. Code PMR50 HZP Resistance tolerance J(±5%) F(±1%) Packaging specifications Reel Basic ordering unit (pcs) Embossed tape (4mm Pitch) φ180mm (7in.) 2,000 Reel (φ180) : Compatible with JEITA standard "EIAJ ET-7200B" : Standard product Packaging Taping P2 0 B0 02 04 06 08 06 D 04 B 02 A 08 W F φD P0 E Reel A0 K P1 (Unit : mm) C Label W F E A0 B0 12.0±0.3 5.5±0.05 1.75±0.1 2.9±0.2 5.3±0.2 EIAJ ET-7200B compliant (Unit : mm) A φ180 0 −1.5 B φ60 C +1 0 13 +1.0 0 D D0 P0 P1 P2 K φ13±0.2 φ1.5 +0.1 0 4.0±0.1 4.0±0.1 2.0±0.05 Max. 1.1 www.rohm.com c 2010 ROHM Co., Ltd. All rights reserved. ○ 3/3 2010.10 - Rev.D 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. 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