CRW Series Power Chip Resistors Sizes: 1210, 1216, 2010, 2040, 2512, 4020 Features: • • • • • • Chip Resistors in thick film technology Contact areas Nickel-barrier / matte tin RF – versions with air-abrasive trimming Improved pulse power rating untrimmed Power mode available Suitable for high vacuum applications – no organics Dimensions: Sizes L B +0.2/-0.05 1210 3.2 1216 3.2 +0.2/-0.05 2010 5.1 +0.2/-0.05 2.5 2040 5.1 +0.2/-0.05 10.2 2512 6.3 +0.2/-0.05 4020 10.2 +0.2 2.5 D +0.2/-0.05 4.1 +0.2/-0.05 +0.2/-0.05 +0.2/-0.05 3.50 +0.2/-0.05 5.1 +0.2 C +0.2/-0.1 0.8 ±0.2 0.5 +0.2/-0.1 0.8 ±0.2 0.6 +0.2/-0.1 1.2 ±0.2 0.6 +0.2/-0.1 1.2 ±0.2 0.6 +0.2/-0.1 0.9 ±0.2 0.5 0.6 +0.2/-0.1 0.9 B D L ±0.2 L = Length, B = Width, D = Thickness, C = Width of wrap around (in mm) C Packaging: Bulk in plastic bags – minimum quantity 100 pieces per value Blistertape acc. to IEC 60286-3 – minimum 1000 pieces per value Reel diameter 180 mm or 330 mm Ordering Data: Type – value – tolerance – TCR – packaging Example: CRW 1216 100 R ± 1% TK50 Tape 180 mm Untrimmed parts are indicated by the extension “NA” in the order code: Type – value – tolerance – NA – TCR - packaging Example: CRW 1216 100 R ± 5% NA TK50 Tape 180 mm If no requirements for TCR and taping are given, the standard value (highest value in table) will be supplied and packaging is bulk. Specifications subject to change without notice Issue 01-2012 Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom. + 44 (0) 1342 717102 + 44 (0) 1342 717104 [email protected] http://www.willow.co.uk CRW Series Power Chip Resistors Sizes: 1210, 1216, 2010, 2040, 2512, 4020 Technical data – depending on size: Size 1) Power rating P70 (W) (P155 = 0 W) 4) Working voltage U_, U eff (V) trimmed untrimmed (Tol. > 5%) 1210 1216 2010 2040 0.35 0.5 0.75 2.0 / 3.0 200 600 200 600 250 900 2512 (M) 3) 250 900 1.0 / 2.0 5) 4020 (M) 3) 300 (1000) 1200 (2000) 2.0 / 3.0 5) 3) 500 (4000) 1500 (6000) Ranges / Tolerances / TCR 2) 0R1 – < 1R TC250 5/10/20% TC250 5/10/20% TC250 5/10/20% TC250 5/10/20% TC250 5/10/20% TC250 5/10/20% 1R – < 100R TC100/250 1/…/20% TC100/250 1/…/20% TC100/250 1/…/20% TC100/250 1/…/20% TC100/250 1/…/20% TC100/250 1/…/20% 100R – 100k TC50/100 1/.../20% TC50/100 1/.../20% TC50/100 1/.../20% TC50/100 1/.../20% TC50/100 0.5/.../20% TC50/100 0.5/.../20% 100k – 100M TK50/100 1/.../20% TK50/100 1/.../20% TK25/50/100 1/.../20% TK25/50/100 1/.../20% TK25/50/100 1/.../20% TK25/50/100 1/.../20% 1) At continuous power dissipation the dimensions of solder-pads have to secure sufficient heat-conduction. TC/50: Temperature range + 25°C...+ 125°C 3) Power Mode: The temperature of the resistor elem ent is higher than in standard mode! Higher power rating requires an adequate 2) 4) 5) heat removal (e.g. increased solder pads or Copper thicknesses) The user has to guarantee, that solder joints will not run over their load limit. The resistor must not exceed the specified operating temperature range. Continuous operating voltage: U = √(P*R) M at 2512/4020: Meander structure with higher working voltage in brackets. Zero-Ohm-Jumper: :< 50 mOhm Technical data – general: Operating temperature range -55°C ... +155°C Climatic category acc. to EN 60068-1 55/155/56 Solderability acc EN 60068-2-58 (lead free and lead containing) 250°C 3 s Max. soldering temperature acc. EN 60068-2-58 260°C 10 s Long term stability 10R – 100M <10R Storage 125°C/1000h <0.5% <1% Storage 155°C/1000h <1% <2% Load P70/70°C/1000h <1% <2% <0.25% <0.5% <0.5% <1% Short term overload Damp heat (56d/40°C/96%) Data not specified according EN 140401-802 (CECC 40401-802) Specifications subject to change without notice Issue 01-2012 Willow Technologies Ltd. Unit 3 Borers Yard, Borers Arms Road, Copthorne, West Sussex, RH10 3LH, United Kingdom. + 44 (0) 1342 717102 + 44 (0) 1342 717104 [email protected] http://www.willow.co.uk