Monday, November 27, 2006
Current sense resistor handles automotive duties
Resistor features a wider metal alloy resistive element that offers exceptional TCR ratings and superior thermal compliance.
Providing automotive design engineers with a power current sense surface mount resistor with enhanced thermal characteristics, TT Electronics IRC Wire and Film Technologies Division has developed a wider version of their open air current sense resistor with a higher power rating than conventional metal element resistive devices. Designated the OARS-XP Series, the resistor features a wider metal alloy resistive element that offers exceptional TCR ratings and superior thermal compliance. According to David Winkler, product manager at IRC's Wire and Film Technologies Division, the OARS-XP Series' unique form factor provides automotive designers with several advantages.
'The wider resistive element enables higher current to pass through the device', said Winkler, 'and the open air design provides a far cooler operation by allowing more air flow under the resistive element to keep excess heat from being transmitted to the PC board'.
In addition, the unique form of the product provides the inherent ability to flex slightly and provide stress relief during extreme temperature cycling on typical or metal substrates, Winkler continued.
The OARS-XP Series resistor is being specified for applications involving window lift motors, fuel pump systems, seat belt pretensioners, and pulsewidth modulator feedback.
Resistance value for the resistor ranges from 2 to 50mohm, with standard tolerances of +/-1% and +/-5%.
Inductance values are less than 10nH, with operating temperature ranging from -40 to +125C.
IRC will also produce devices outside these specifications to meet customer requirements.
Lead-free RoHS-compliant and zero ohm jumper versions are also available.
The OARS-XP Series devices also feature bimetallic construction with welded copper terminals that aid in solderability and resistance measurement reliability.
Providing automotive design engineers with a power current sense surface mount resistor with enhanced thermal characteristics, TT Electronics IRC Wire and Film Technologies Division has developed a wider version of their open air current sense resistor with a higher power rating than conventional metal element resistive devices. Designated the OARS-XP Series, the resistor features a wider metal alloy resistive element that offers exceptional TCR ratings and superior thermal compliance. According to David Winkler, product manager at IRC's Wire and Film Technologies Division, the OARS-XP Series' unique form factor provides automotive designers with several advantages.
'The wider resistive element enables higher current to pass through the device', said Winkler, 'and the open air design provides a far cooler operation by allowing more air flow under the resistive element to keep excess heat from being transmitted to the PC board'.
In addition, the unique form of the product provides the inherent ability to flex slightly and provide stress relief during extreme temperature cycling on typical or metal substrates, Winkler continued.
The OARS-XP Series resistor is being specified for applications involving window lift motors, fuel pump systems, seat belt pretensioners, and pulsewidth modulator feedback.
Resistance value for the resistor ranges from 2 to 50mohm, with standard tolerances of +/-1% and +/-5%.
Inductance values are less than 10nH, with operating temperature ranging from -40 to +125C.
IRC will also produce devices outside these specifications to meet customer requirements.
Lead-free RoHS-compliant and zero ohm jumper versions are also available.
The OARS-XP Series devices also feature bimetallic construction with welded copper terminals that aid in solderability and resistance measurement reliability.
# posted by Swathi @ 2:07 AM 
