RB57 TTELEC | Alldatasheet
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Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series Stability for harsh environments Overload characteristics ideal for protection circuits High stability and reliability High power dissipation for size Impervious lead free vitreous enamel coating Resistors 06.20 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.ttelectronics.com/resistors BI Technologies IRC Welwyn Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series Stability for harsh environments Overload ideal for circuits High stability and reliability High power for size Impervious lead free vitreous enamel Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series Stability for harsh environments Overload characteristics ideal for protection circuits High stability and reliability High power dissipation for size Impervious lead free vitreous enamel coating Standard values E24 preferred. Other values to special order Thermal impedance Ambient temperature range °C -55 to 200 Maximum Dimensions (mm) and Weight (g) Type L max D max f min d max Wt. Nom V757 (RB57) 22.2 8 30 0.88 2 V759 (RB59) 12.7 5.6 30 0.88 1 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 Power rating at 25°C Resistance range Limiting element voltage TCR ppm/°C Typically: +75 Maximum +120 Resistance tolerance % 5 Closer tolerances to special order Electrical Data Physical Data 03. 08 A subsidiary of TT electronics plc Welwyn Components LD f d Construction A high purity ceramic substrate is assembled with force fit end caps to which are welded the termination wires. The resistive element is wound on the substrate and welded to the caps; the vitreous enamel protective coating is then applied. Make Possible Resistors All Pb-free parts comply with EU 2011/65/EU (RoHS2) 07.14 General Note 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 All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)All Pb-free parts comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3)
Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series 06.20 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.ttelectronics.com/resistors BI Technologies IRC Welwyn Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series L f1 f2 f1 – f 2 ≤ 1.4 mm Terminations Material Copper clad steel wire, nickel plated and solder-coated. Vitreous Enamelled Wirewound Resistors V700 (RB Style) 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 03. 08 Welwyn Components Actual Performance Maximum Typical Load at rated power: 1000 hrs ∆R% 5 3.5 Dry heat: 1000 hours at 200°c ∆R% 2 Shelf life: 12 mths at room temp ∆R% 0.03 0.02 Derating from rated power at 25°C ∆R% See derating curve Short term overload ∆R% 1.5 0.5 Climatic ∆R% 0.5 0.2 Climatic category ∆R% 55/200/56 55/200/56 Long term damp heat ∆R% 0.05 0.02 Temperature rapid change ∆R% 0.5 0.05 Resistance to solder heat ∆R% 0.25 0.03 Vibration ∆R% 0.25 0.05 Noise (µV/V in a decade of freqency) zero Shock ∆R% 0.2 0.05 Pulse handling Data available by request Strength The terminations meet requirements of IEC 68.2.21. Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2. Performance Data 25 70 200 315 116 100 Ambient temperature °C Derating Curve % of Rated Power Packaging For RB59 and RB61 the standard method of packaging is taped and Ammo Packed. For RB57, the standard method of packaging is taped and reeled. Alternative packaging available by request. Type L V759 63 V757 73 V761 73 Application Notes The terminations should not be bent closer than 1.6mm from the body, and the recommended minimum bend radius is 1.2mm. If resistors are to dissipate full rated power, the terminations should not be soldered closer than 4mm from the body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulants the specific resistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum temperature cannot be classed as insulated and should not be used in contact with any conducting material. Care must be taken when determining clearance distance between the resistor body and the printed circuit board or other components to ensure these are not over heated. Resistance is measured 6mm from the body. L f1 f2 f1 – f 2 ≤ 1.4 mm Terminations Material Copper clad steel wire, nickel plated and solder-coated. Vitreous Enamelled Wirewound Resistors V700 (RB Style) 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 03. 08 Welwyn Components Actual Performance Maximum Typical Load at rated power: 1000 hrs ∆R% 5 3.5 Dry heat: 1000 hours at 200°c ∆R% 2 Shelf life: 12 mths at room temp ∆R% 0.03 0.02 Derating from rated power at 25°C ∆R% See derating curve Short term overload ∆R% 1.5 0.5 Climatic ∆R% 0.5 0.2 Climatic category ∆R% 55/200/56 55/200/56 Long term damp heat ∆R% 0.05 0.02 Temperature rapid change ∆R% 0.5 0.05 Resistance to solder heat ∆R% 0.25 0.03 Vibration ∆R% 0.25 0.05 Noise (µV/V in a decade of freqency) zero Shock ∆R% 0.2 0.05 Pulse handling Data available by request Strength The terminations meet requirements of IEC 68.2.21. Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2. Performance Data 25 70 200 315 116 100 Ambient temperature °C Derating Curve % of Rated Power Packaging For RB59 and RB61 the standard method of packaging is taped and Ammo Packed. For RB57, the standard method of packaging is taped and reeled. Alternative packaging available by request. Type L V759 63 V757 73 V761 73 Application Notes The terminations should not be bent closer than 1.6mm from the body, and the recommended minimum bend radius is 1.2mm. If resistors are to dissipate full rated power, the terminations should not be soldered closer than 4mm from the body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulants the specific resistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum temperature cannot be classed as insulated and should not be used in contact with any conducting material. Care must be taken when determining clearance distance between the resistor body and the printed circuit board or other components to ensure these are not over heated. Resistance is measured 6mm from the body. L f1 f2 f1 – f 2 ≤ 1.4 mm Terminations Material Copper clad steel wire, nickel plated and solder-coated. Vitreous Enamelled Wirewound Resistors V700 (RB Style) 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 03. 08 Welwyn Components Actual Performance Maximum Typical Load at rated power: 1000 hrs ∆R% 5 3.5 Dry heat: 1000 hours at 200°c ∆R% 2 Shelf life: 12 mths at room temp ∆R% 0.03 0.02 Derating from rated power at 25°C ∆R% See derating curve Short term overload ∆R% 1.5 0.5 Climatic ∆R% 0.5 0.2 Climatic category ∆R% 55/200/56 55/200/56 Long term damp heat ∆R% 0.05 0.02 Temperature rapid change ∆R% 0.5 0.05 Resistance to solder heat ∆R% 0.25 0.03 Vibration ∆R% 0.25 0.05 Noise (µV/V in a decade of freqency) zero Shock ∆R% 0.2 0.05 Pulse handling Data available by request Strength The terminations meet requirements of IEC 68.2.21. Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2. Performance Data 25 70 200 315 116 100 Ambient temperature °C Derating Curve % of Rated Power Packaging For RB59 the standard method of packaging is taped and Ammo Packed. For RB57, the standard method of packaging is taped and reeled. Alternative packaging available by request. Type L V759 63 V757 73 V761 73 Application Notes The terminations should not be bent closer than 1.6mm from the body, and the recommended minimum bend radius is 1.2mm. If resistors are to dissipate full rated power, the terminations should not be soldered closer than 4mm from the body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulants the specific resistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum temperature cannot be classed as insulated and should not be used in contact with any conducting material. Care must be taken when determining clearance distance between the resistor body and the printed circuit board or other components to ensure these are not over heated. Resistance is measured 6mm from the body. L f1 f2 f1 – f 2 ≤ 1.4 mm Terminations Material Copper clad steel wire, nickel plated and solder-coated. Vitreous Enamelled Wirewound Resistors V700 (RB Style) 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 03. 08 Welwyn Components Actual Performance Maximum Typical Load at rated power: 1000 hrs ∆R% 5 3.5 Dry heat: 1000 hours at 200°c ∆R% 2 Shelf life: 12 mths at room temp ∆R% 0.03 0.02 Derating from rated power at 25°C ∆R% See derating curve Short term overload ∆R% 1.5 0.5 Climatic ∆R% 0.5 0.2 Climatic category ∆R% 55/200/56 55/200/56 Long term damp heat ∆R% 0.05 0.02 Temperature rapid change ∆R% 0.5 0.05 Resistance to solder heat ∆R% 0.25 0.03 Vibration ∆R% 0.25 0.05 Noise (µV/V in a decade of freqency) zero Shock ∆R% 0.2 0.05 Pulse handling Data available by request Strength The terminations meet requirements of IEC 68.2.21. Solderability The terminations meet the requirements of IEC 115-1, Clause 4.17.3.2. Performance Data 25 70 200 315 116 100 Ambient temperature °C Derating Curve % of Rated Power Packaging For RB59 and RB61 the standard method of packaging is taped and Ammo Packed. For RB57, the standard method of packaging is taped and reeled. Alternative packaging available by request. Type L V759 63 V757 73 Application Notes The terminations should not be bent closer than 1.6mm from the body, and the recommended minimum bend radius is 1.2mm. If resistors are to dissipate full rated power, the terminations should not be soldered closer than 4mm from the body. When cold, vitreous enamel has excellent insulation resistance. In common with all insulants the specific resistance of the enamel decreases with increase in temperature. Therefore, resistors operated at near maximum temperature cannot be classed as insulated and should not be used in contact with any conducting material. Care must be taken when determining clearance distance between the resistor body and the printed circuit board or other components to ensure these are not over heated. Resistance is measured 6mm from the body. Make Possible 07.14 General Note 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
Vitreous Enamelled Wirewound Resistors V700 (RB Style) Series 06.20 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.ttelectronics.com/resistors BI Technologies IRC Welwyn Ordering Procedure Example: RB57-3K3JI (V757 (RB57), 3.3 kilohms ±5%, Pb-free) R B 5 7 - 3 K 3 J I 1 2 3 4 1 2 3 4 Type Value Tolerance Packing & Termination Finish RB57 E24 = 3/4 characters R = ohms K = kilohms J = ±5% I = Standard packing & Pb-free RB59 PB = Standard packing & SnPb V759 (RB59) 1000/box V757 (RB57) 700/reel