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Metal Foil, Metal Strip Chip Resistors & EB Welded Shunts

Bourns offers metal foil and metal strip chip resistors and EB welded metal strip shunts.

These high-power resistors have very low resistance values and TCR due to their metal strip resistive element and are suitable for all types of current sensing applications.

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Metal foil resistors are constructed with a metal foil resistive element mounted on a ceramic substrate for excellent heat conductivity. The metal foil resistive element of these current sense resistors results in very low inductance, low noise and excellent reliability. Available with very low resistance values (down to five milliohms) and ideal for current sensing in consumer and telecommunication electronics and industrial automation applications.
 
Bourns offers the standard short terminal shape (CFN Series) and a wide terminal shape (CFG Series) wide terminal model CFG Series helps to provide improved heat dissipation and higher reliability due to larger terminations and solder joint surfaces.

Metal strip chip resistors (Model CRA, CRE, CRF, CST Series) have electroplated tin (Sn) outer terminations for soldering onto the board. The resistive element is protected by an epoxy overcoat layer.

EB welded metal strip shunts (Bourns® Model CSS Series) are manufactured using an electron beam-welded metal strip with an iron chrome or manganese copper alloy resistive element, providing excellent electrical characteristics. They also feature copper alloy terminations that deliver additional mechanical strength and enable ease of solderability.

 

Characteristics
Size 0805, 1206 Short Terminal Metal Foil 
0612  Wide terminal Metal Foil
0805 to 2512 Metal Strip Chip
2512 to 5931 EB Welded Metal Strip
Rated power at 70 °C 0.5 W to 15 W
Resistance Range 0.2 to 100 milliohms
Resistance Tolerance ±1 %, ±5 %
Temperature Coefficient ±50, 100, ±200 ppm/°C
Operating Temperature Range –55 to +170 °C

 

Available features

  • RoHS compliant*
  • AEC-Q200 compliant
  • Very high power
  • Very low resistance
  • Excellent long-term stability
  • Low inductance values
  • Low thermal EMF
  • Low TCR
  • Four terminal designs
  • Suitable for most types of soldering processes

*RoHS Directive 2002/95/EC Jan. 27, 2003 including annex and RoHS Recast 2011/65/EU June 8, 2011.

 

 

Applications

  • Current sense
  • Automotive comfort, entertainment, and infotainment
  • Industrial
  • Consumer
  • Telecommunications
  • Battery management system
  • DC/DC converters
  • Motor drives
  • Power supplies

 

Series CFN1206
Data Sheet CFN1206
Photo cfn1206_part
Resistance Range 0.005; 0.01; 0.02 ohms
Tolerances 1 % / 5 %
Temperature Coefficient ±100 ppm
Power per Resistor 1 W
Related Documents CFN1206
Design Files Downloads
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