Electronic Design

Component Specifier: Resistors/Capacitors/Potentiometers

 

RESISTORS/POTENTIOMETERS/CAPACITORS
TYPE/Model Features P & A Source
RESISTORS
CURRENT-SENSE
RESISTOR CSRL2
Current-sense chip resistor capable of withstanding currents to 63 A in a 2512-size package; rated to 2 W at 70°C; resistance values as low as 0.0005 ‡ in tolerances to 1%; inductance of less than 0.2 nH; TCRs less than ±100 ppm/°C; rated for ­55°C to 150°C Approximately $0.25 each in 5000-unit lots; stock to six weeks Stackpole Electronics Inc.
www.seielect.com
(919) 850-9500
CURRENT-SENSE
RESISTOR CSS series
Metal-alloy strip resistors for current-sensing applications; rated for 45 A at 1 W; offered in two- and four-terminal designs; resistance 0.5 to 2 m‡; TCRs less than ±20 ppm/°C; rated for ­40°C to 125°C; inductance less than 0.1 nH; chips fit within 2512 footprint Typically $0.28 each in 10,000-unit lots; four to 12 weeks IRC Inc.
www.irctt.com
(828) 264-8861
THERMAL TRACKING
RESISTOR PTS series
Surface-mount linear thermal-tracking resistors function as temperature-sensing devices in bridge-circuit applications for process control; also serve as compensators; 0.05-, 0.1-, and 0.25-W models; available standard 1 ‡ through 50 k‡ ±1% Between $1 and $7 each, depending on quantity; four weeks Precision Resistor Co. Inc.
www.precisionresistor.com
(727) 541-5771
SURFACE-MOUNT CHIP
RESISTOR VSMP1206
Surface-mount chip resistor built with Bulk Metal Z-foil technology; 300-mW power rating; 0.01% load life stability; nominal TCR of ±0.5 ppm/°C; resistance range is 10 ‡ to 30 k‡ ±0.01% Starts at under $4 each; six weeks Vishay Intertechnology Inc.
www.vishay.com
(610) 644-1300
POTENTIOMETERS
DIGITAL POTENTIOMETER
MAX5432-MAX5435
I2C 32-tap nonvolatile digital potentiometers come in a 3- by 3-mm SOT-23 or TDFN package; integrated EEPROM that stores wiper position prior to power-down; voltage divider or variable resistor configurations; 35-ppm/°C end-to-end temperature coefficient Starts at $0.63 each in 1000-unit lots; one week Maxim Integrated Products Inc.
www.maxim-ic.com
(800) 998-8800
MINIATURE
POTENTIOMETER PL 300/310 series
Selection of shafts, housings, bushings, bearings, and other components can be used to configure high-precision miniature potentiometers; 22.2-mm diameter; 0.1° repeatability; ±0.25% linearity over life of 106 movements; bushing or servo mount packages Starts at $24 each in 100-unit lots; two weeks Novotechnik U.S. Inc.
www.novotechnik.com
(508) 485-2244
CAPACITORS
MULTILAYER CERAMIC CAPACITOR
CFCAP series
1.0- by 0.5- by 0.5-mm EIA 0402 case size added to company's CFCAP line of low-distortion multilayer ceramic capacitors; nine models provide dc voltage ratings of 10, 16, and 25 V; capacitance values range from 1000 to 4700 pF; operating temperature range of ­55°C to 125°C Sample price is $0.10 each; two weeks Taiyo Yuden USA Inc.
www.t-yuden.com
(800) 348-2496
POLYMER CHIP
CAPACITOR
B4529W series
Series of polymer chip capacitors that can operate at ambient temperatures up to 125°C; capacitances from 100 to 680 µF for rated voltages from 2.5 to 10 V; currently available in D or E case sizes Typical price is $0.70 each in large quantities; stock EPCOS Inc.
www.epcos.com
(800) 888-7729
RF CAPACITOR HPC0603A Silicon-based, surface-mount RF capacitor available in 0603 case size; SRF values as high as 13 GHz over a capacitance range of 3.3 to 560 pF; stable operation over a wide range of frequencies from 1 MHz to several gigahertz; 0.046-nH parasitic inductance; Q factors up to 4157; tolerances of ±1% or 0.05 pF Vishay Intertechnology Inc.
www.vishay.com
(610) 644-1300
ELECTROLYTIC
CAPACITOR B41605 and B41607 series
Aluminum electrolytic capacitors targeted at automotive applications; corrugated design produces high vibrational strength up to 30 or 40 g; maximum operating voltages from 25 to 63 V; 1100- to 6800-µF capacitance range; ripple current capability of 13 A at 10 kHz and 105°C Typical price is $2.95 each in large quantities; stock EPCOS Inc.
www.epcos.com
(800) 888-7729
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