Flat Type Extremely-Low Resistance Chip Resistor Hokuriku Electric Industry Co.,Ltd 【Model Number】 ECR** 【Features】 ■Extremely-low resistance (50mΩ～) chip resistor for current detection ■Reflow, Flow solderings are applicable. ■Europe RoHS compliant product. 【Dimensions】 (Unit: mm) Model No. ECR20 L W t 2.00 +0.20/-0.10 1.25 +0.20/-0.10 0.50 +0.15/-0.05 c d 0.40±0.20 0.40±0.20 ECR32 3.20±0.10 1.60±0.10 0.55±0.10 0.40±0.20 0.55±0.10 ECR50 5.00±0.15 2.50±0.15 0.56±0.15 0.25±0.25 0.60±0.25 - Ｊ ③ 【Designation】ＥＣＲ２０ ① Ｒ０５１ ② ①Model No. Model No. Size ECR20 2012 ECR32 3216 ECR50 5025 Ｖ ④ ②Resistance Value Marking Resistance Ｒ051 51ｍΩ ③Resistance Tolerance Symbol Tolerance Ｆ ±1.0％ J ±5.0％ R051＝51ｍΩ R is decimal point. ③Packing Form Symbol Form V Paper tape Ｅ Emboss tape B Bulk 【Specification】 Model No. Rated power (W) at 70℃ ECR20 0.250 ECR32 0.500 ECR50 1.000 Tolerance F J F J F J (±1.0%) (±5.0%) (±1.0%) (±5.0%) (±1.0%) (±5.0%) Range (Ω) TCR (ppm/℃) 0.05～0.091 ±100 0.05～0.091 ±100 0.05～0.091 ±100 * Operating temperature range: -55～+155 ℃ 【Structure】 No. 1 2 3 4 5 6 7 8 Element Name Ceramic substrate Bottom electrode Conductor Protective coat Ⅰ Side electrode Cu plating Ni plating Sn plating 3 4 8 6 1 7 2 * Design・specification are subject to change without prior notice. Please check before purchase and use. HOKURIKU 5