WR181WJ0561T4E

DATA SHEET Product Name Wide Terminal Thick Film Chip Resistors Part Name WR Series Uniroyal Electronics Global Co., Ltd. 88 Longteng Road, Economic & Technical Development Zone, Kunshan, Jiangsu, China Tel Email Manufacture Plant +86 512 5763 1411 / 22 /33 marketing@uni-royal.cn Uniroyal Electronics Industry (kunshan) co., ltd. Uniroyal Electronics Industry Co., Ltd. Uniroyal Electronics Global Co.,Ltd Shenzhen Branch Aeon Technology Corporation Uniroyal Electronics Global Co.,Ltd Xiamen Branch Kunshan Foss Electronic material Co., Ltd. Royal Electronic Factory (thailand) co., ltd Brands RoyalOhm UniOhm Wide Terminal Thick Film Chip Resistors - Data Sheet 1. Scope 1.1 This specification for approve relates to the Wide Terminal Thick Film Chip Resistors manufactured by UNI-ROYAL. 1.2 Suitable for both wave & re-flow soldering 1.3 Application：AV adapters，LCD back-light，camera strobe etc 2. Explanation of Part No. System Part No. includes 14 codes shown as below: 2.1 1st~4th codes: Part name. E.g.: WR08, WR12, WR20, WR18, WR25 2.2 5th~6th codes: Power rating. E.g.: W=Normal Size “1~G” = “1~16” Wattage 1/32 3/4 1/2 1/3 1/4 1/8 1/10 1/16 1/20 1 Normal Size WH 07 W2 W3 W4 W8 WA WG WM 1W If power rating is lower or equal than 1 watt, 5th code would be “W” and 6th code would be a number or letter. E.g.: WA=1/10W W4=1/4W 2.3 7th code: Tolerance. E.g.: D=±0.5% F=±1% G=±2% J=±5% K= ±10% 2.4 8th~11th codes: Resistance Value. 2.4.1 If value belongs to standard value of ≥5% series, 8th code would be zero,9th~10th codes are significant figures of the resistance and 11th code is the power of ten. 2.4.2 If value belongs to standard value of ≤2% series, 8th~10th codes are significant figures of the resistance, and 11th code is the power of ten. 2.4.3 11th codes listed as following: 0=100 1=101 2=102 3=103 4=104 5=105 6=106 J=10-1 K=10-2 L=10-3 M=10-4 N=10-5 P=10-6 th th 2.5 12 ~14 codes. 2.5.1 12th code: Packaging Type. E.g.: C=Bulk T=Tape/Reel 2.5.2 13th code: Standard Packing Quantity. 4=4000pcs 5=5000pcs C=10000pcs D=20000pcs E=15000pcs Chip Product: BD=B/B-20000pcs TC=T/R-10000pcs 2.5.3 14th code: Special features. E = Environmental Protection, Lead Free, or Standard type. 3. Ordering Procedure (Example: WR18 1W ±5% 10KΩ T/R-4000) W R 1 8 Product Type: Product Type: Fill-in 4 digits with the chip resistor type as follows: WR08、WR12、 WR20、WR18、 WR25 1 W J 0 1 0 3 T Resistance Value: 5%(E-24 series): The 1st digit will be “0”; the 2nd & 3rd digits are for the significant figures of the resistance and the 4th digit indicate the numbers of zeros following. 1%(E-96 series ): Wattage: Normal size: W3=1/3W W2=1/2W 1W=1W WK=2/3W 2W=2W 3W=3W 4 E Packing quantity: 4=4000PCS 5=5000PCS C=10,000pcs D=20,000pcs E=15,000pcs The 1st to 3rd digits are for the significant figures OF the resistance and 4th digit denotes number of zeros following. J=10-1; K=10-2; L=10-3 Special Feature E= Lead-Free M=10-4 ；N=10-5 Tolerance: F=±1% J=±5% Packing Type: T=Tape/Reel B=Bulk in poly bag C=Bulk in cassette Feb.13,2019 V.3 www.uniohm.com Page 2/7 Wide Terminal Thick Film Chip Resistors - Data Sheet 4. Marking (1) 5%Tolerance: The first two digits are significant figures of resistance and the third denotes number of zeros following Example: . 333  33K (2) 5%Tolerance: Below 10 show as following, read alphabet ”R” as decimal point. Example: 2R2 2.2 (3) 1% Tolerance: 4 digits, first three digits are significant; the forth digit is number of zeros. Letter r is decimal point. Example: 2701  2.7K (4) 5%,±1% Tolerance ,Product below 1Ω,show as following, the first digit is“R＂which as decimal point. Example: R500  0.5 5. Dimension Type Dimension(mm) L W H A B WR08(0508) 1.20±0.10 2.0±0.10 0.55±0.10 0.20±0.10 0.30±0.20 WR12(0612) 1.60±0.15 3.20±0.15 0.55±0.10 0.30±0.20 0.45±0.20 WR20(1020) 2.50±0.15 5.00±0.15 0.55±0.10 0.40±0.20 0.60±0.20 WR18(1218) 3.10±0.10 4.60±0.15 0.55±0.10 0.45±0.20 0.40±0.20 WR25(1225) 3.10±0.15 6.25±0.15 0.55±0.10 0.45±0.20 0.65±0.20 6. Resistance Range Type WR08 WR12 Power Rating at 70℃ Resistance Range ±1% ±5% 1/3W 10Ω~1M 2/3W 10mΩ≤R＜10Ω 1/2W 10Ω~1M 1W 1Ω＜R≤1M 10mΩ≤R≤10Ω 10Ω~1M 1Ω~1M WR20 1W WR18 1W 10mΩ~1MΩ 2W 1Ω＜R≤1M 3W 10mΩ≤R≤1Ω WR25 Feb.13,2019 V.3 www.uniohm.com 10mΩ~1Ω Page 3/7 Wide Terminal Thick Film Chip Resistors - Data Sheet 7. Ratings Type Max Working Voltage Max Overload Voltage Dielectric Withstanding Voltage Resistance Value of Jumper Rated Current of Jumper Max. Overload Current of Jumper WR08 150V 300V 500V ＜50mΩ 4A 8A -55℃~155℃ WR12 200V 400V 500V ＜50mΩ 5A 10A -55℃~155℃ WR20 200V 400V 500V ＜50mΩ 6A 12A -55℃~155℃ WR18 200V 400V 500V ＜50mΩ 6A 10A -55℃~155℃ WR25 200V 400V 500V ＜50mΩ 6A 15A -55℃~155℃ Operating Temperature 8. Recommend the size of welding plate Type WR08 WR12 WR20 WR18 WR25 A 0.5±0.1 0.6±0.1 1.1±0.1 2.2±0.1 1.4±0.1 Dimension(mm) B C 1.0±0.1 2.0±0.1 1.0±0.1 3.2±0.1 1.2±0.1 5.0±0.1 1.2±0.1 4.6±0.1 1.3±0.1 6.4±0.1 D 2.7±0.1 2.9±0.1 3.5±0.1 4.6±0.1 4.0±0.1 9. Derating Curve Resistors shall have a power rating based on continuous load operation at an ambient temperature from -55℃ to 70℃. For temperature in excess of 70℃, the load shall be derated as shown in figure 1 Figure 1 Voltage rating: Resistors shall have a rated direct-current (DC) continuous working Voltage or an approximate sine-wave root-mean-square (RMS) alternating-current (AC) continuous working voltage at commercial-line frequency and waveform corresponding to the power rating, as determined from the following formula: RCWV = P  R Where: RCWV commercial-line frequency and waveform (Volt.) P = power rating (WATT.) R = nominal resistance (OHM) In no case shall the rated DC or RMS AC continuous working voltage be greater than the applicable maximum value. The overload voltage is 2.5 times RCWV or Max. Overload voltage whichever is less Feb.13,2019 V.3 www.uniohm.com Page 4/7 Wide Terminal Thick Film Chip Resistors - Data Sheet 10 . Structure 11. Performance Specification Characteristic Limits Test Methods (GB/T5729&JIS-C-5201&IEC60115-1) WR08： 10mΩ≦R