DSC TTELEC | Alldatasheet
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Double-Sided Chip Resistors DSC Series Two parallel resistance elements in a single chip Excellent pulse withstand performance Laser trimmed up to 0.5% tolerance Enhanced working voltage Enhanced power rating Anti-sulphur version available. Resistors All Pb-free parts comply with EU Directive 2011/65/EU (RoHS2) 215201026021 5.157.033.0WC°07@ rewoP 4.97.41.2WC°52@ rewop daolrevo dnoces 2 shparg eeSecnamrofrep eslup trohS 7M4 ot 0R1smhoegnar ecnatsiseR 5 ,1 :seulav llA ,5.0 :M1 ot R01%ecnareloT 005004002VVEL 001:R01> 002:R01< C°/mppRCT 551+ ot 55- C°erutarepmet gnitarepO 005Vegatlov dnatshtiw cirtceleiD 0508061W/C°ecnadepmI lamrehT Pad & trace area for rated power* mm2 0010605 08050603 0.250.125 0.8 302 1.6 1R0 to 1M0 210 150 redro laiceps ot seulav rehto - derreferp 69 ro 42EseulaV Double-Side d Chip Resistors DSC Series Two parallel resistance elements in a single chip Excellent pulse withstand performance Laser trimmed up to 0.5% tolerance Enhanced working voltage Enhanced power rating Pb-free terminations General Note Welwyn Components reserves the right to make changes in product specification without notice or liability. All information is subject to Welwyn’s own data and is considered accurate at time of going to print. © 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 Electrical Data 04. 08 A subsidiary of TT electronics plc Welwyn Components Dimensions (mm) & Weight (g) L W T max A B min C Wt. Physical Data *Recommended minimum pad & adjacent trace area for each termination for rated power dissipation on FR4 PCB 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. T WA A B L Wrap-around terminations (3 faces) C 11.16 General Note 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. © TT Electronics plc http://www.ttelectronics.com/resistors BI Technologies IRC Welwyn
© 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 07. 08 Welwyn Components Performance Data Pulse Performance Data Lightning Surge Resistors are tested in accordance with IEC 60 115-1 using both 1.2/50µs and 10/700µs pulse shapes. 10 pulses are applied. The limit of acceptance is a shift in resistance of less than 1% from the initial value. 100 1,000 10,000 1 10 100 1,000 10,000 100,000 1,000,000 10,000,000 Peak Voltage (V) Value (ohms) 1.2/50µs Lightning Surge 0805 1206 2010 2512 100 1,000 10,000 10 100 1,000 10,000 100,000 1,000,000 10,000,000 Peak Voltage (V) Value (ohms) 10/700µs Lightning Surge 0805 1206 2010 2512 Double Sided Chip Resistors DSC Series Maximum Typical Load at rated power: 1000 hours at 70°C ΔR% 1 0.25 Derating from rated power at 70°C ΔR% Zero at 155°C Overload: 6.25 x rated power for 2 seconds 1 0.1 Shelf life test: 12 months at room temperature ΔR% 0.1 0.02 Dry heat: 1000 hours at 155°C ΔR% 1 0.2 Long term damp heat ΔR% 1 0.25 Temperature rapid change ΔR% 0.25 0.05 Resistance to sulphur-bearing gas (AS version only): ASTM-B-809 0.25 0.05 Resistance to solder heat ΔR% 0.25 0.05 2512 2010 1206 0805 0603 2512 2010 1206 0805 0603 11.16 General Note 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. © TT Electronics plc http://www.ttelectronics.com/resistors BI Technologies IRC Welwyn
© 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 07.08 Single Pulse The single impulse graph is the result of 50 impulses of rectangular shape applied at one-minute intervals. The limit of acceptance was a shift in resistance of less than 1% from the initial value. Continuous Load Due to Repetitive Pulses The continuous load graph was obtained by applying repetitive rectangular pulses where the pulse period was adjusted so that the average power dissipated in the resistor was equal to its rated power at 70°C. Again the limit of acceptance was a shift in resistance of less than 1% from the initial value. 100 1,000 10,000 1 10 100 1,000 10,000 100,000 1,000,000 10,000,000 Peak Voltage (V) Value (ohms) DSC2512 - Bellcore GR1089 Lightning Surge 2/10µs 10/1000µs 100 1000 0.0001 0.001 0.01 0.1 1 Peak Power (W) Pulse Duration (s) Single Pulse 0805 1206 2010 2512 0.1 100 1000 0.0001 0.001 0.01 0.1 1 Peak Power (W) Pulse Duration (s) Continuous Pulses 0805 1206 2010 2512 2512 2010 1206 0805 0603 2512 2010 1206 0805 0603 11.16 General Note 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. © TT Electronics plc http://www.ttelectronics.com/resistors BI Technologies IRC Welwyn
© 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 07. 08 Welwyn Components Thermal Performance Data Ambient Temperature/°C % of Rated Power 125 100 -15 70 155 Temperature Derating Curve Packaging 0603, 0805 and1206 DSC series resistors are supplied on 8mm carrier tape and 7 inch reels as per IEC 286-3, quantity per reel; 3000. 2010 and 2512 DSC series resistors are supplied on 12mm carrier tape and 7 inch reels as per IEC 286-3, quantity per reel; 2010 : 3000pcs; 2512 : 1800pcs. Reels of 1000pcs are available on request. 0 0.5 1 1.5 Temperature Rise ( °C) Power Dissipation (W) Temperature Rise Curves 0805 1206 2010 2512 Packaging 0603, 0805 and 1206 resistors are supplied on 8mm carrier tape and 2010 and 2512 resistors are supplied on 12mm carrier tape, all on 7 inch reels as per IEC 286-3. Ordering Procedure Double Sided Chip Resistors DSC Series © 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 07. 08 Welwyn Components Application Notes DSC resistors are ideally suited for handling by automatic methods due to their rectangular shape and the small dimensional tolerances. Electrical connection to a ceramic substrate or to a printed circuit board can be made by reflow or wave soldering of wrap-around terminations. Wrap-around terminations provide good leach properties and ensure reliable contact. Due to the robust construction, the DSC can be immersed in the solder bath for 30 seconds at 260°C. This enables the resistor to be mounted on one side of a printed circuit board and wire-leaded components applied on the other side. DSC is compatible with typical Pb-free soldering materials and temperature profiles. DSC resistors themselves can operate at a maximum temperature of 155°C. For soldered resistors, the joint temperature should not exceed 110°C. This condition is met when the stated power levels at 70°C and recommended pad and trace areas are used. Pad and trace area is defined as the total area of the solder pad plus all copper trace within two squares of the edge of the solder pad. Allowance should be made if smaller areas of copper are used.7. Ordering Procedure – Replace with below Example: DSC2512-10KFT18 (DSC2512, 10 kilohms ±1%, Pb-free) 8. Update header & footer branding D S C 2 5 1 2 - 1 0 K F T 1 8 1 2 3 4 5 6 1 2 3 4 5 6 Type Size Anti-Sulphur Value Tolerance Termination & Packing DSC 0603 Omit for Standard E24 = 3/4 characters D ±0.5% Standard Pb-free finish
0805 AS Anti-Sulphur E96 = 3/4 characters F ±1% T5 0603 5000/reel standard
1206 R = ohms J ±5%
3000/reel standard 2010 K = kilohms 1206
2512 M = megohms 2010
T18 2512 1800/reel standard T1 All sizes 1000/reel available SnPb finish PB All sizes Standard quantities as for Pb-free 11.16 General Note 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. © TT Electronics plc http://www.ttelectronics.com/resistors BI Technologies IRC Welwyn