FCR TTELEC | Alldatasheet
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Fuses safely under defined overload conditions Combines inrush limit and board-level protection Standard chip formats for fast placement RoHS compliant matt tin finish A subsidiary of TT electronics plc 05 . 08 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 Fusible Chip Resistors Fuses safely under defined overload conditions Combines inrush limit and board-level protection Standard chip formats for fast placement RoHS compliant matt tin finish FCR Series Electrical Data 0603 0805 1206 1210 2010 Resistance range ohms 5R6 – 33R 10 – 82R 10 – 300R 10 – 100R Minimum power for <60s fusing time watts 2 2.5 10–27R: 3.75 30-300R: 3.0 4.5 Maximum post-fuse standoff (dc or ac peak) volts 25 50 100 TCR ppm/ºC ±500 Resistance tolerance % ±5 Ambient temperature range ºC -55 to +125 Standard values E24 Physical Data Dimensions (mm) and weight (g) L W C A T max Construction Conductors, resistive element and protection are applied to a 96% alumina substrate. The design and laser adjustment of the resistive element optimises the fusing performance of the resistor. Terminations The chips are supplied with wrap-around terminations suitable for soldering. Solderability The terminations have an electroplated nickel barrier and 100% matt tin finish. This ensures excellent ‘leach’ resistance properties and solderability. Marking The body protection is resistant to all normal cleaning solvents suitable for printed circuits. All resistors are individually marked with 3 digits. The first two digits are the significant figures and the third defines the number of added zeros. A subsidiary of TT electronics plc 05 . 08 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 Fusible Chip Resistors Fuses safely under defined overload conditions Combines inrush limit and board-level protection Standard chip formats for fast placement RoHS compliant matt tin finish FCR Series Electrical Data 0603 0805 1206 1210 2010 Resistance range ohms 5R6 – 33R 10 – 82R 10 – 300R 10 – 100R Minimum power for <60s fusing time watts 2 2.5 10–27R: 3.75 30-300R: 3.0 4.5 Maximum post-fuse standoff (dc or ac peak) volts 25 50 100 TCR ppm/ºC ±500 Resistance tolerance % ±5 Ambient temperature range ºC -55 to +125 Standard values E24 Physical Data Dimensions (mm) and weight (g) L W C A T max Construction Conductors, resistive element and protection are applied to a 96% alumina substrate. The design and laser adjustment of the resistive element optimises the fusing performance of the resistor. Terminations The chips are supplied with wrap-around terminations suitable for soldering. Solderability The terminations have an electroplated nickel barrier and 100% matt tin finish. This ensures excellent ‘leach’ resistance properties and solderability. Marking The body protection is resistant to all normal cleaning solvents suitable for printed circuits. All resistors are individually marked with 3 digits. The first two digits are the significant figures and the third defines the number of added zeros. Resistors All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2) 04.17 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
05 . 08 © 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 FCR Series Performance Data Maximum Typical Load at rated power: 1000 hours cyclic load @ 70°C ΔR% 1 0.1 Shelf life test: 12 months at room temperature ΔR% 0.2 0.1 Derating from rated power at 70° C Zero at 125°C Short term overload: 10 cycles of 6.25 x rated power for 5S ΔR% 2.5 0.1 Climatic category 55/125/56 Long term damp heat 56 days 85°C 85%RH ΔR% 3 0.5 Temperature rapid change -55 to 125°C ΔR% 1 0.1 Resistance to solder heat ΔR% 2.5 1 Post-fuse leakage: 50Vdc (25Vdc for 0603) mA 10 2 Voltage proof volts 400 Insulation resistance @ 100Vdc ohms >100M Fusing Performance Note – actual fusing characteristics depend on mounting conditions. Reference conditions are FR4 substrate with 35 m (1oz) copper, pad and track width as follows: 0603 – 1.5mm, 0805 – 1.7mm, 1206 – 2mm, 1210 – 2.9mm, 2010 – 3mm. Packaging FCR Resistors are supplied taped and reeled on a 7” reel as per IEC 286-3. The width of the reel is 15.4±1mm for 2010 size and 11.4±1.1mm for the smaller sizes. 100 0123456789 1210 & 2010 Initial Power (W) Fuse Time (s) Typical Constant Voltage Fusing Characteristic 0603, 0805 & 1206 04.17 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
05 . 08 © 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 FCR Series Ordering Procedure Example: FCR1210 at 22 ohms and 5% tolerance on a reel of 5000 pieces - F C R 1 2 1 0 – 2 2 R J I Type Size Value (use IEC62 code) Tolerance (use IEC62 code) J 5% Packing I Tape 0603, 0805, 1206, 1210 5000/reel Standard 2010 4000/reel 04.17 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