Resistors Double-Sided Welwyn Components ChiHigh Pulse Double-Sided Chip Resistp Resistors ors HDSC Series DSC Series Two parallel resistance elements in a single chip Two parallel resistance elements Excellent pulse withstand performance in a single chip Enhanced working voltage Excellent pulse withstand performance Enhan ced power rating Laser trimmed up to 0.5% tolerance Anti-sulphur Enhanced working voltage 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 Electrical Data 0805 1206 2010 2512 0603 0805 1206 2010 2512 Power 70C W 0.25 0.33 0.75 1.5 Power 70 C W 0.33 0.75 1.5 0.125 0.25 2 second overload power 25C W 1.6 2.1 4.7 9.4 2 second overload power 25 C W 2.1 4.7 9.4 0.8 1.6 Short pulse performance See graphs Short pulse performance See graphs Resistance range ohms 0R5 to 1M0 Resistance range ohms 0R5 to 1M0 0R5 to 4M7 Tolerance % 5, 10, 20 Tolerance % 10R to 1M: 0 .5, All valu e s: 1 , 5 LEV V 150 200 400 500 LEV V 150 200 400 500 75 TCR ppm/C <10R:300 10R:100 > TCR ppm/ C <10R:200 10R:10 0 Operating temperature C -55 to +155 Operating temperature C -55 to +155 Dielectric withstand voltage V 300 500 Dielectric withstand voltage V 500 Thermal Impedance C/W 210 160 80 50 Thermal Impedance C/W 210 160 80 50 302 2 Pad & trace area for rated power* mm 40 50 60 100 2 Pad & trace area for rated power* mm 40 50 60 100 30 Values E24 preferred - other values to special order 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 *Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB Physical Data Physical Data Dimensions (mm) & Weight (mg) Dimensions (mm) & Weight (mg) L W T max A B min C Wt. 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 0805 2.00.15 1.250.15 0.7 0.30.15 0.9 0.30.1 5.0 T 0805 2.00.15 1.250.15 0.7 0.30.15 0.9 0.30.1 5.0 A 1206 3.20.2 1.60.2 0.7 0.40.2 1.7 0.40.15 10 B 1206 3.20.2 1.60.2 0.7 0.40.2 1.7 0.40.15 10 L W A 20102010 5.10.5.10.33 2.50.2.50.22 0.8 0.8 0.60.0.60.33 3.03.0 0.60.20.60.255 4242 Wrap-around terminations 2512 6.50.3 3.20.2 0.8 0.60.3 4.4 0.60.25 65 (3 faces) 2512 6.50.3 3.20.2 0.8 0.60.3 4.4 0.60.25 65 Construction Construction Thick film resistor material, overglaze and organic protection are screen printed on a 96% alumina substrate. Wrap-around terminations Thick film resistor material, overglaze and organic protection are screen printed on a 96% alumina substrate. Wrap-around terminations have an electro- havepla anted nick electel barrier and solderroplated nickel barrierable c andoa ting this ensursolderable coating,es excellen thist leach r ensuresesis excellenttance pr leachoperties and solder resistance abilityproperties. and solderability. Marking Marking Components are not marked. Reels are marked with type, value, tolerance, date code and quantity. Components are not marked. Reels are marked with type, value, tolerance, date code and quantity. Solvent Resistance Solvent Resistance The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits. The body protection is resistant to all normal industrial cleaning solvents suitable for printed circuits. General Note General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. BI Technologies IRC Welwyn 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 10.19 High Pulse Double-Sided High Pulse Double-Sided Chip Resistors High Pulse Double-Sided Chip Resistors Chip Resistors HDSC Series HDSC Series HDSC Series Performance Data Performance Data Performance Data Maximum Typical Maximum Typical Maximum Typical Load at rated power: 1000 hours at 70C R% 1 0.25 Load at rated power: 1000 hours at 70C R% 1 0.25 Load at rated power: 1000 hours at 70C R% 1 0.25 Derating from rated power at 70C R% Zero at 155C Derating from rated power at 70C Zero at 155C Derating from rated power at 70C R% Zero at 155C Overload: 6.25 x rated power for 2 seconds 1 0.1 Overload: 6.25 x rated power for 2 seconds R% 1 0.1 Overload: 6.25 x rated power for 2 seconds 1 0.1 Shelf life test: 12 months at room temperature 0.1 0.02 R% Shelf life test: 12 months at room temperature R% 0.1 0.02 Shelf life test: 12 months at room temperature R% 0.1 0.02 Dry heat: 1000 hours at 155C R% 1 0.2 Dr y heat: 1000 hours at 155C R% 1 0.2 Dry heat: 1000 hours at 155C R% 1 0.2 Long term damp heat R% 1 0.25 Long term damp heat R% 1 0.25 Long term damp heat 1 0.25 R% Temperature rapid change 0.25 0.05 R% Temperature rapid change R% 0.25 0.05 Temperature rapid change 0.25 0.05 R% Resistance to sulphur-bearing gas (AS version only): 0.25 0.05 Resistance to sulphur-bearing gas ASTM-B-809 R% 0.25 0.05 Resistance to sulphur-bearing gas (AS version only): 0.25 0.05 ASTM-B-809 ASTM-B-809 Resistance to solder heat R% 0.25 0.05 Resistance to solder heat R% 0.25 0.05 Resistance to solder heat R% 0.25 0.05 Pulse Performance Data Pulse Performance Data Lightning Surge Pulse Performance Data Lightning Surge Resistors are tested in Lightning Surge Resistorsacc areor tedance with IEsted in C 60 115- Resistors1 using both 1.2/50s and are tested in accordance with IEC 60 115-1 using both 10/700s pulse shapes. 10 accordance with IEC 60 115-1 using both 1.2/50s and 10/700s pulse shapes. 10 pulses pulses are applied. The limit 1.2/50s and 10/700s pulse shapes. 10 pulses are applied. The limit of acceptance is a shift in of acceptance is a shift in are applied. The limit of acceptance is a shift in resistance of less than 1% from the initial value. resistance of less than 1% from resistance of less than 1% from the initial value. the initial value GRAPHS GRAPHS UPDATED UPDATED General Note BI Technologies IRC Welwyn TTGe Elenectrral Nonicsot reseer ves the right to make changes in product specification without notice or liability. BI Technologies IRC Welwyn General Note All information is subject to TT Electronics own data and is considered accurate at time of going to print. BI Technologies IRC Welwyn TT Electronics 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. www.ttelectronics.com/resistors All information is subject to TT Electronics own data and is considered accurate at time of going to print. 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 www.ttelectronics.com/resistors TT Electronics plc 06.18 TT Electronics plc 06.18 10.19