Product Type: Resistors

PV150K

Molded surface mount MOVs in sizes 3225 and 4032, AC voltages from 60 thru 300V.  Peak current handling up to 1200 amps and energy handling up to 30J.  Surface mount option to low and medium voltage 5mm and 7mm radial-leaded disk varistors.

MLF / MLFM / MLFA

Standard, mini, and AEC-compliant surface mount MELFs in sizes 0102, 0204, and 0207, and power ratings from 0.3W to 1W.  Resistance values from 0.1 ohm to 1 Megohm, in tolerances as low as 0.1% and TCR as low as 15 pppm.  Exceptional electrical and environmental stability and surge handling with low self-heating.

HVC

High-voltage chip (HVC) resistors offer working voltages up to 3500 volts.  Chip sizes from 0603 through 3512, tolerance as low as 0.1%, and TCR as low as 25 ppm.  Resistance values up to 50G available.  Offers very low electrical noise and low VCR to 1 ppm/volt with excellent high-voltage pulse handling.

HCSM

High-current molded shunt (HCSM) resistors offering 5W power ratings in a 2818 chip size.  Resistance values 4, 5, 10, 15, 20, and 25 milliohms available in tolerances as low as 1% and TCR of 75 ppm or 200 ppm.  Excellent long-term stability, high operating temperatures allowing full power up to 100C, and derated operation up to 170C.  AEC compliant.

CSS/CSSH

Ultra-precision current sensing chip resistors offering sizes from 0603 through 4527 in power ratings from 0.33W up to 5W.  Resistance ranges from 0.25 milliohm to 120 milliohm, in tolerances as low as 0.5%, and TCR as low as 15 ppm.  Excellent long-term environmental and electrical stability.  AEC compliant.

BR

Bare element radial-leaded thru-hole sense resistors (BR) in power ratings from 1W to 5W.  Resistance ranges from 5 milliohm to 100 milliohm in tolerances as low as 1%.  Flameproof, non-inductive, low-cost current sensing, with low thermal board stress due to the raised element.

High-Voltage Chip Resistors

HVC resistors are ideally suited for handling by automatic methods due to their rectangular shape and small dimensional tolerances. Electrical connection to a ceramic substrate or a printed circuit board can be made by reflow or wave soldering of wrap-around terminations.

Features

  • Continuous voltages up to 3kV
  • Overload voltages up to 4kV
  • Values up to 1G0
  • Tolerances to ±0.5%
  • TCR to ±50ppm/°C
  • 100% screened by automated optical inspection
  • 100% screened by high voltage overload
  • Antisulphur version available

Applications

  • Photomultiplier
  • Air ionizer
  • EDS Protection

E-Beam Welded Shunt Resistor

EBW8518 is a busbar-mounted shunt resistor for high-current measurements in the hundreds of amps range. This product is an electron beam-welded resistance element sandwiched between large copper terminals with optional tin plating. A variety of voltage-sense terminal styles may be made available as custom options. Precision applications can make use of the 1% tolerance, 100ppm/°C TCR, 1μV/°C thermal EMF, and separate ground pins to reduce errors.

Features

  • Robust electron beam-welded technology
  • Low values to 50μΩ
  • Low thermal EMF
  • Low measurement inductance
  • AEC-Q200

Applications

  • Busbar current sense
  • Energy metering
  • Welding power supply
  • HEV battery management

Metal Foil on Ceramic Chip Resistors

MFC4320 is a metal foil on ceramic chip resistor in 4,320 sizes with values from 2 to 50mΩ, aimed at current sense applications. The high power rating of 5W means that this is ideal for highly compact current sensing in the 1 to 50A range.

Features

  • High power 5W
  • High-stability foil on ceramic
  • Values R002 to R05 at 1% tolerance
  • TCR down to ±30ppm/°C
  • Low temperature rise

Applications

  • Power supplies
  • DC-DC converters
  • Motor converters
  • HVAC systems
  • Lighting drivers

Low-Resistance Metal Alloy Power Resistors

LRMAP5930 is a high-power, low-value SMT shunt resistor. With values down to 200μΩ and a corresponding power rating on FR4 of 10W, the maximum measurable current is over 200A, and therefore in most cases restricted only by the capacity of the PCB tracks. A power rating of up to 15W may be achieved for assemblies on thermal substrates like DBC ceramic or IMS, making this part ideal for power hybrid modules.

Features

  • Up to 10W rating on FR4 PCB
  • Up to 15W rating on thermal substrate
  • AEC-Q200 qualified
  • Values 200μΩ to 2mΩ
  • High surge energy up to 33J

Applications

  • Power supplies
  • Steering control
  • Motor drives
  • Battery monitoring