Transcript Document
RCWE / RCWL THICK FILM - CURRENT SENSE THICK FILM - CURRENT SENSE RESISTORS RCWE / RCWL Construction RCWL (Standard) RCWE (Power and Precision) • Flip Chip design reduces TCR as compared to typical commodity chip resistors. • Heavy Copper used for terminations • Increases power handling • Reduces termination resistance • Long-side/Reverse termination available • More terminal in circuit path results in higher TCR than RCWE Current path RCWE (Flip Chip Design) RCWL THICK FILM - CURRENT SENSE RESISTORS RCWE (Increased Power and Precision) Features • • • • • • 0402 TO 2512 case sizes Resistance values 0.01 Ω to 0.976 Ω ±1 % Standard (0.5% available) Double Power Rating of Standard thick film TCR: ±100 ppm/ °C best Long-Side / Reverse Termination Available (4x power rating over standard termination thick film designs) • AEC-Q200 qualified E96 decades for 1% tolerance DC / DC Conversion Climate Controls Lighting Patient Monitoring Portable defibrillator Implantable Devices Voltage Regulator Modules Disc Drive Motor Control THICK FILM - CURRENT SENSE RESISTORS RCWL (Standard Power & Precision) Features • • • • • 0402 TO 2512 case size Resistance values 0.1 Ω to 0.91 Ω ±5 % Tolerance and Standard power rating TCR: ±200 ppm/ °C best AEC-Q200 qualified E24 decades for 5% tolerance DC / DC Conversion Multi-Media Lighting General Motor Control Brushless DC Motor Control Inverter Control for Air Conditioning White Goods THICK FILM - CURRENT SENSE RESISTORS STRATEGY Sell Vishay WSL / WSR / WSHM type Power Metal Strip® (PMS) first. Sell the RCWE / RCWL when: • Resistance range is beyond PMS range ( etc. -- 0.75Ω ) • Size is not available in PMS technology (0402, 1218, …) • Customer requires thick film technology. • Pricing cannot be met with PMS technology Competitors IRC KOA Ohmite Panasonic Rohm Stackpole (SEI) LR, LRCS, LVC SR73, UR73, WK73 LVC, ERJ, ERJ (wide terminal) LTR, MCR, UCR CSR/CSRN, RHC