WRM TTELEC | Alldatasheet
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Technical content
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 BI Technologies IRC Welwyn www.ttelectronics.com/resistors 01.25 Electrical Data Features:
- AEC-Q200 qualified
- High reliability
- Defined pulse handling capability
- Tolerances down to 0.1%
- TCR down to 5ppm/°C All parts are Pb-free and comply with EU Directive 2011/65/EU amended by (EU) 2015/863 (RoHS3) Physical Data Construction A metal film is deposited onto a high dissipation ceramic former to which tin plated terminating caps are fitted. The resistor is adjusted to value by a helical cut in the film and the body is protected by a lacquer coating. Marking Resistance values are colour coded with four bands, three indicating value and one indicating the multiplier. (Note this describes standard marking, but certain values may be supplied with the addition of a tolerance band following the multiplier.) Terminations Material Plated steel cap Solderability The pure tin finish produces ageing free contacts on which low melting solders can be used. Dipped area shall be covered with a smooth and bright solder coating after 3 seconds immersion at 215°C. Solvent Resistance The body protection and marking are resistant to all normal industrial cleaning solvents suitable for printed circuit boards.
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 BI Technologies IRC Welwyn www.ttelectronics.com/resistors 01.25 TCR and Tolerance Ranges Performance Data Temperature Derating 0204 & 0207 0102
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 BI Technologies IRC Welwyn www.ttelectronics.com/resistors 01.25 Pulse & Surge Performance Single Pulse (mean power << rated power) Continuous Pulses (mean power = rated power) 1.2/50µs Lightning Surge 10/700µs Lightning Surge Ordering Procedure Examples: WRM0204C-1K0FI (0204, 50ppm/°C, 1 kilohm ±1%, Pb-free) WRM0207-R000T2 (0207, zero-ohm jumper, Pb-free) Packaging WRM0102 and WRM0204 resistors are supplied in 8mm plastic tape on 7” reels. WRM0207 resistors are supplied in 12mm plastic tape on 7” reels. Packing complies with the requirements of IEC286-3.