2500 TTELEC | Alldatasheet
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2500 Series
Resistance values down to 0.025 ohms Low inductance Tolerances down to 1% Flameproof protection Low Value Metal Film Resistors s Resistance values down to 0.025 ohms s Low inductance s Tolerances down to 1% s Flameproof protection setoN4052 0.2sttawC°52 ta gnitar rewoP 5.1sttawC°07 ta gnitar rewoP 1 ot 520R0smhoegnar ecnatsiseR 007stlovegatlov noitalosI 0 to +380 C°/mpp)C°07 ot°02+( RCT spac morf mm6 ta derusaeM01 ,5 ,2 ,1%ecnarelot ecnatsiseR 56ttaw/C°ecnadepmi lamrehT Values E24 051+ ot 55-C°egnar erutarepmet gnitarepO 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 09.10 A subsidiary of TT electronics plc Welwyn Components 155 Construction The metal film is deposited on a high purity ceramic rod. End caps are force fitted and termination wires welded to the caps. The resistive film is then adjusted to the required value; finally the cement protection is applied to the resistor body and marked with indelible ink. Terminations Material Solder-coated copper wire. Strength The terminations meet the requirements of IEC 68.2.21 Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2 Marking Values below R10 are colour coded with 3 bands. Values R10 and above are marked with 4 bands. IEC 62 colours are used. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning fluids suitable for printed circuits. Flammability The resistors will not burn or emit incandescent particles under any condition of applied temperature or power overload. Dimensions (mm) & weight (g) PCB Min. mounting bend Wt. Type L Max D Max f min d nom centres radius nom Physical Data LD f d Low Value Metal Film Resistors s Resistance values down to 0.025 ohms s Low inductance s Tolerances down to 1% s Flameproof protection setoN4052 0.2sttawC°52 ta gnitar rewoP 5.1sttawC°07 ta gnitar rewoP 1 ot 520R0smhoegnar ecnatsiseR 007stlovegatlov noitalosI 0 to +380 C°/mpp)C°07 ot°02+( RCT spac morf mm6 ta derusaeM01 ,5 ,2 ,1%ecnarelot ecnatsiseR 56ttaw/C°ecnadepmi lamrehT Values E24 051+ ot 55-C°egnar erutarepmet gnitarepO 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 09.10 A subsidiary of TT electronics plc Welwyn Components 155 Construction The metal film is deposited on a high purity ceramic rod. End caps are force fitted and termination wires welded to the caps. The resistive film is then adjusted to the required value; finally the cement protection is applied to the resistor body and marked with indelible ink. Terminations Material Solder-coated copper wire. Strength The terminations meet the requirements of IEC 68.2.21 Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2 Marking Values below R10 are colour coded with 3 bands. Values R10 and above are marked with 4 bands. IEC 62 colours are used. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning fluids suitable for printed circuits. Flammability The resistors will not burn or emit incandescent particles under any condition of applied temperature or power overload. Dimensions (mm) & weight (g) PCB Min. mounting bend Wt. Type L Max D Max f min d nom centres radius nom Physical Data LD f d Make Possible Resistors All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2) 07.14 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 www.ttelectronicsresistors.com
Low Value Metal Film Resistors Low Value Metal Film Resistors 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 09.10 A subsidiary of TT electronics plc Welwyn Components Performance MAXIMUM (+0.001/uni03A9) Load at rated power (1000 hours @ 25°C) /uni0394R% 3 Load at rated power (1000 hours @ 70°C) /uni0394R% 2 Derating from rated power at 70°C Linear to zero at 150°C Short term overload (6.25 x Pr for 5s) /uni0394R% 0.5 Climatic /uni0394R% 2 Climatic category 55 / 150 / 56 Resistance to solder heat /uni0394R% 0.5 Vibration and bump /uni0394R% 0.5 Inductance (measured at 6mm from caps) nH ≤20 Packaging The standard packaging for 2504 is taped. The critical dimensions are shown in Figure 1. The component wires will not protrude beyond the outside edge of the tapes. Taped product is then packed into ammo boxes. Alternative packaging is available by request. Pre-formed resistors are available and are supplied loose packed in plastic bags or boxes. Dimensions (mm) Type b C 2504 67 10 Ordering Procedure Example: 2504 at 0.33 ohms and 5% tolerance in an ammo pack box of 1000 pieces - 2 5 0 4 – R 3 3 J I Type Value (use IEC62 code) Tolerance (use IEC62 code) F 1% J 5% G 2% K 10% Packing I Ammo 2504 1000/box Standard Make Possible 07.14 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 www.ttelectronicsresistors.com