RRWWA, RA, RWB, RWB, RWCWC PrPrecision SMD Bulk Metal Foil Resistorecision SMD Bulk Metal Foil Resistor (Wraparound) FEATURES Made in Japan High precision and stable Bulk Metal Foil resistor with 0603, 0805 and 1206 package TCR: 02 ppm/C, 05 ppm/C Resistance tolerance: up to 0.01% Load-life stability: 0.005% (typical, 70C, 2000 hrs., rated power) No standard resistance value (example: 1K234) MOQ: 100 pieces COMPOSITION OF TYPE NUMBER TCR, RESISTANCE RANGE, TOLERANCE, RATED POWER Example: TCR Rated Resistance Resistance RWC 10K00 Q L 25C to Power Type Range Tolerance +125C at 70C Tape and Reel Package () (%) (ppm/C) (W) Resistance Tolerance Resistance Value 100 to 1k 0.1(B) RWA 05 0.1 Type 1k to 5k 0.05(A) 010 10 to 30 0.5(D) Resistance value is expressed by 4 numbers and 1 alphabet. R or K is a dual-purpose letter that designates both the value range (R for ohmic, 05 30 to 100 0.1(B) K for kiloohm) and the location of decimal point. RWB 0.2 100 to 1k 0.05(A), 0.1(B) 02 1k to 10k 0.02(Q), 0.05(A) CONFIGURATIONDIMENSIONS IN inches (mm) 010 5 to 30 0.5(D) 05 30 to 100 0.1(B) RWC 0.3 100 to 1k 0.02(Q), 0.05(A), 0.1(B) 02 1k to 30k 0.01(T), 0.02(Q), 0.05(A) POWER DERATNG CURVE Type RWA RWB RWC (%) 100 L0.008 (0.2) 0.063 (1.6) 0.079 (2.0) 0.126 (3.2) W0.008 (0.2) 0.031 (0.8) 0.049 (1.25) 0.063 (1.6) 80 t0.004 (0.1) 0.020 (0.5) 0.020 (0.5) 0.020 (0.5) 60 c0.010 (0.25) 0.012 (0.3) 0.016 (0.4) 0.020 (0.5) d0.010 (0.25) 0.012 (0.3) 0.016 (0.4) 0.020 (0.5) 40 20 CONSTRUCTION 70 155 20 40 60 80 100 120 140 160 (C) Ambient Temperature External terminal (Sn) Internal terminal (Cu+Ni) Bonding layer (polyimide) Ceramic substrate (high-purity alumina) Solder resist Bulk Metal Foil Document No.: 67051Document No.: 67051 For any questions, contact www.alpha-elec.co.jp Revision: 21-Sep-2016Revision: 21-Sep-2016 sales-alpha alpha-elec.co.jp 1 Rated Power PercentageRWA, RWB, RWC PERFORMANCE SPECIFICATION PARAMETERS TEST CONDITION MIL-PRF-55342 ALPHA Typical Max. Rated Operating Temperature 70C Working Temperature Range 65C to +155C Maximum Working Voltage RWA=22V, RWB=45V, RWC=95V Thermal Shock 65C/30 min.+150C/30 min. 100 cycles 0.1% 0.01% Overloading Rated Voltage x 2.5, 5 sec. 0.1% 0.01% Low Temperature Storage 65C, No Load, 24 hrs. Rated Power, 45 min. 0.1% 0.01% Resistance to Soldering Heat +260C, 10 sec. 0.2% 0.01% +65C to 10C, 90% RH to 98% RH, Moisture Resistance 0.2% 0.02% Rated Voltage, 10 cycles (240 hrs.) 70C, Rated Power, 1.5 hrs. ON, Life 0.5% 0.005% 0.5 hrs. OFF, 2,000 hrs. High Temperature Exposure 155C, No Load, 100 hrs. 0.1% 0.02% TAPE AND REEL PACKAGE (BASED ON EIA-481-1) DIMENSIONS IN inches (mm) Tape Dimensions Reel Dimensions W2 Sprocket Hole J Cavity 0.010 (0.25) max. D B C FG H 0.030 (0.75) A max. W1 A A B C D E F G H J A N B C D W1 W2 Type 0.004 0.004 0.008 0.002 0.004 0.004 0.002 0.004 0.022 0/-0.059 +0.039/0 0.008 0.031 0.020 +0.039/0 0.039 (0.1) (0.1) (0.2) (0.05) (0.1) (0.1) (0.05) (0.1) (0.55) (0/-1.5) (+1/0) (0.2) (0.8) (0.5) (+1/0) (1.0) Dia. Dia. Dia. Dia. Dia. 0.039 0.071 0.315 0.138 0.069 0.157 0.079 0.157 0.079 0.354 0.512 RWA 0.061 7.087 2.362 0.512 0.827 (1.0) (1.8) (8.0) (3.5) (1.75) (4.0) (2.0) (4.0) (2) (9) (13) (1.55) (180) (60) (13) (21) Dia. 0.057 0.089 0.315 0.138 0.069 0.157 0.079 0.157 RWB 0.061 (1.45) (2.25) (8.0) (3.5) (1.75) (4.0) (2.0) (4.0) Reel Capacity (1.55) RWA, RWB, RWC: 5,000 pieces/reel Dia. (Available at 100 pieces, 500 pieces and 1,000 pieces) 0.075 0.138 0.315 0.138 0.069 0.157 0.079 0.157 RWC 0.061 (1.9) (3.5) (8.0) (3.5) (1.75) (4.0) (2.0) (4.0) (1.55) PRECAUTION IN USING FACE-BONDED CHIP RESISTORS 1. Storage 4. Recommended Land Pattern Storage conditions or environment may adversely affect solderability of The dimensions of solder land must be determined in conformity with the exterior terminals. Do not store in high temperature and humidity. the size of resistors and with the soldering method. They are also The recommended storage environment is lower than 40C, has less subject to the mounting machine and the material of the substrate. than 70% RH humidity and is free from harmful gases such as sulphur and chlorine. 2. Caution in Soldering IR and vapor phase reflow are recommended. Vacuum pick up is recommended for handling. If the use of a soldering iron becomes necessary, precautionary measures should be taken to avoid any possible damage / overheating. 3. Cleaning Type A B C Avoid the use of cleaning agents which could attack epoxy resins, which form part of the resistor construction. RWA 0.031 (0.8) 0.035 (0.9) 0.039 (1.0) RWB 0.031 (0.8) 0.047 (1.2) 0.055 (1.4) RWC 0.063 (1.6) 0.059 (1.5) 0.071 (1.8) www.alpha-elec.co.jp For any questions, contact Document No.: 67051 2 sales-alpha alpha-elec.co.jp Revision: 21-Sep-2016 B DE C N