Download THICK FILM - TTI, Inc.

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
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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
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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