Anti-Sulfurated Chip Resistor Array Anti-Sulfurated Chip Resistor Array Type: EXB U24, U28, U2H, U34, U38 Features ● High resistance to sulfurization achieved by adopting an Ag-Pd-based inner electrode density 2 resistors in 1.0 mm × 1.0 mm size / 0404 inch size : EXBU24 4 resistors in 2.0 mm × 1.0 mm size / 0804 inch size : EXBU28 8 resistors in 3.8 mm × 1.6 mm size / 1506 inch size : EXBU2H 2 resistors in 1.6 mm × 1.6 mm size / 0606 inch size : EXBU34 4 resistors in 3.2 mm × 1.6 mm size / 1206 inch size : EXBU38 ● Improvement of placement efficiency Placement efficiency of Chip Resistor Array is two, four or eight times of the flat type chip resistor ● Reference Standard…IEC 60115-9, JIS C 5201-9, EIAJ RC-2129 ● AEC-Q200 qualified ● RoHS compliant ● High ■ As for Packaging Methods, Land Pattern, Soldering Conditions and Safety Precautions, Please see Data Files Explanation of Part Numbers Product Code Thick Film Chip Resistor Networks 1 2 3 4 5 6 7 8 9 10 11 E X B U 2 8 4 7 2 J X Size, Construction No. of Terminal Code Inch 4 4 Terminal U2 0402 Array 8 8 Terminal U3 0603 Array H 16 Terminal Anti-Sulfuarted Convex Terminal Packaging Methods Resistance Tolerance Code Packaging Part No. J ±5 % Punched Carrier Taping EXBU24, X 2 mm pitch, 10,000 pcs. U28 0 Jumper Resistance Value The first two digits are significant figures of resistance value and the third one denotes the number of zeros following. Jumper is expressed by R00 Example : 222 → 2.2 kΩ Construction V Punched Carrier Taping EXBU2H, 4 mm pitch, 5,000 pcs. U34, U38 Schematics ● Isolated type EXBU24, U34 EXBU28, U38 2 resistors 4 resistors 4 3 8 7 6 5 1 2 1 2 3 4 Protective coating Alumina substrate EXBU2H 8 resistors Thick film Electrode resistive element (Inner) Electrode (Between) Electrode (Outer) 16 15 14 13 12 11 10 9 1 8 2 3 4 5 6 7 Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Apr. 2015 Anti-Sulfurated Chip Resistor Array Dimensions in mm (not to scale) EXBU24, U34 EXBU28, U38 A2 P T P L G G B B G W W G B A1 B A1 T L EXBU2H G B W G B A1 A2 P T L Dimensions (mm) Part No. (inch size) L EXBU24 (0402×2) EXBU28 (0402×4) 1.00 ±0.10 ±0.10 2.00 ±0.10 ±0.10 1.00 1.60 ±0.20 1.60 3.80 EXBU34 (0603×2) 1.60 ±0.20 3.20 T 1.00 ±0.10 EXBU2H (0402×8) EXBU38 (0603×4) W ±0.10 0.40 ±0.10 0.45 ±0.10 ±0.10 0.35 ±0.10 ±0.10 0.65 ±0.15 0.65 ±0.15 0.35 ±0.10 0.35 ±0.10 0.45 ±0.15 0.50 ±0.15 1.60 A1 ±0.10 0.50 A2 B — 0.18 ±0.10 0.35 ±0.10 0.35 — P ±0.10 (0.65) 0.25 0.20 ±0.10 (0.50) 0.25 0.30 ±0.10 (0.50) 0.30 ±0.20 (0.80) 0.30 0.30 ±0.15 0.45 0.30 ±0.20 Mass (Weight) [g/1000 pcs.] G (0.80) ±0.10 1.2 ±0.10 2.0 ±0.10 9.0 ±0.20 3.5 ±0.20 0.35 ( 7.0 ) Reference Ratings Specifications Resistance Range 10 Ω to 1 MΩ E24 series Resistance Tolerance J: ±5 % Number of Terminals Number of Resistors U24, U34 4 terminal U28, U38 8 terminal U2H 16 element U24, U34 2 element U28, U38 4 element U2H 8 element Power Rating U24, U28, U34, U38 0.063 W/element 0.063 W/element at 70 °C U2H (0.25 W/package) Item Specifications Limiting Element U2H (1) Voltage U24, U28, U34, U38 Max. Overload (2) Voltage 25 V 50 V U2H 50 V U24, U28, U34, U38 100 V -6 T.C.R. ±200×10 /°C Category Temperature Range –55 °C to 125 °C Jumper Array Item Rated U24, U28, U2H, U34, U38 1 A Current Max. Overload U24, U28, U2H, U34, U38 2 A Current (1) Rated Continuous Working Voltage (RCWV) shall be determined from RCWV=√Power Rating × Resistance Value, or Limiting Element Voltage listed above, whichever less. (2) Overload (Short-time Overload) Test Voltage (SOTV) shall be determined from SOTV=2.5 × RCWV or max. Overload Voltage listed above whichever less. –55 °C 70 °C 100 Rated Load (%) Power Derating Curve For resistors operated in ambient temperatures above 70 °C, power rating shall be derated in accordance with the figure on the right. 80 60 40 20 125 °C 0 –60 –40 –20 0 20 40 60 80 100 120 140 160 180 Ambient Temperature (°C) Design and specifications are each subject to change without notice. Ask factory for the current technical specifications before purchase and/or use. Should a safety concern arise regarding this product, please be sure to contact us immediately. 04 Apr. 2015