Resistors Double-Sided Double-Sided Chip Resistors Welwyn Components Chip Resistors DSC Series DSC Series Two parallel resistance elements in a single chip Two parallel resistance elements Excellent pulse withstand performance in a single chip Laser trimmed up to 0.5% tolerance Excellent pulse withstand performance Enhanced working voltage Laser trimmed up to 0.5% tolerance Enhan ced power rating Enhanced working voltage Anti-sulphur version availab le. Enhanced power rating Pb-free terminations AllAll Pb-Pb-frfreeee partsparts ccomplyomply withwith EUEU DirDirectivectivee 2011/65/EU2011/65/EU amended amended b yb y(EU) (EU) 2015/863 2015/863 (R (RoHS3)oHS3) Electrical Data 0603 0805 1206 2010 2512 Power 70 C W 0.33 0.75 1.5 0.125 0.25 2 second overload power 25 C W 0.8 2.1 4.7 9.4 1.6 Short pulse performance See graphs Resistance range ohms 0R5 to 1M0 0R5 to 4M7 Tolerance % 10R to 1M: 0 .5, All valu e s: 1 , 5 LEV V 75 150 200 400 500 > TCR ppm/ C <10R:200 10R:10 0 Operating temperature C -55 to +155 Dielectric withstand voltage V 500 Thermal Impedance C/W 210 160 80 50 302 2 Pad & trace area for rated power* mm 40 50 60 100 30 Values E24 or 96 p refe rred - oth e r value s to sp eci al order *Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB Physical Data Dimensions (mm) & Weight (mg) L W T max A B min C Wt. C 0603 1.60.1 0.80.1 0.6 0.30.15 0.6 0.30.15 2.7 T A 0805 2.00.15 1.250.15 0.7 0.30.15 0.9 0.30.1 5.0 B 1206 3.20.2 1.60.2 0.7 0.40.2 1.7 0.40.15 10 L W A 2010 5.10.3 2.50.2 0.8 0.60.3 3.0 0.60.25 42 Wrap-around terminations 2512 6.50.3 3.20.2 0.8 0.60.3 4.4 0.60.25 65 (3 faces) Construction Thick film resistor material, overglaze and organic protection are screen printed on a 96% alumina substrate. Wrap-around terminations have an electroplated nickel barrier and solderable coating, this ensures excellent leach resistance properties and solderability. Marking Components are not marked. Reels are marked with type, value, tolerance, date code and quantity. Solvent Resistance The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits. General Note General Note BI Technologies IRC Welwyn Welwyn Components reserves the right to make changes in product specification without notice or liability. TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyns own data and is considered accurate at time of going to print. A subsidiary of All information is subject to TT Electronics own data and is considered accurate at time of going to print. TT electronics plc www.ttelectronics.com/resistors Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 04. 08 TT Electronics plc 06.20Double-Sided Chip Resistors Double Sided DSC Series Chip Resistors Welwyn Components DSC Series Performance Data Performance Data Maximum Typical Load at rated power: 1000 hours at 70C R% 1 0.25 Derating from rated power at 70C Zero at 155C Overload: 6.25 x rated power for 2 seconds R% 1 0.1 Shelf life test: 12 months at room temperature R% 0.1 0.02 Dr y heat: 1000 hours at 155C R% 1 0.2 Long term damp heat R% 1 0.25 Temperature rapid change R% 0.25 0.05 Anti-sulphur grade (AS) ASTM-B-809 (1000 hours, 50C, 91-93% RH) R% 0.25 0.05 Sulphur-resistant grade (SR) EIA-977 (750 hours, 105C) R% 0.25 0.05 ASTM-B-809 (1000 hours, 50C, 91-93% RH) R% 0.25 0.05 Modified ASTM-B-809 (1000 hours, 105C, 85% RH) R% 1 0.25 Resistance to solder heat R% 0.25 0.05 Pulse Performance Data Lightning Surge 1.2/50s Lightning Surge Resistors are tested in 10,000 accordance with IEC 60 115-1 using 2512 both 1.2/50s and 10/700s pulse 2512 shapes. 10 pulses are applied. The 2010 1206 2010 limit of acceptance is a shift in 1,000 0805 1206 resistance of less than 1% from the 0805 0603 initial value. 100 10 1 10 100 1,000 10,000 100,000 1,000,000 10,000,000 Value (ohms) 10/700s Lightning Surge 10,000 2512 2512 2010 2010 1,000 1206 1206 0805 0805 0603 100 10 10 100 1,000 10,000 100,000 1,000,000 10,000,000 Value (ohms) General Note BI Technologies IRC Welwyn TT Electronics reserves the right to make changes in product specification without notice or liability. All information is subject to TT Electronics own data and is considered accurate at time of going to print. www.ttelectronics.com/resistors TT Electronics plc Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK 06.20 Telephone: +44 (0) 1670 822181 Facsimile: +44 (0) 1670 829465 Email: info welwyn-tt.com Website: www.welwyn-tt.com 07. 08 Peak Voltage (V) Peak Voltage (V)