Industrial Electronics

APEC 2019: Lead-free high-voltage chip resistors from TT Electronics

26 March 2019

The GHVC series allows manufacturers to achieve long-term Restriction of Hazardous Substances (RoHS) compliance. Source: TT ElectronicsThe GHVC series allows manufacturers to achieve long-term Restriction of Hazardous Substances (RoHS) compliance. Source: TT ElectronicsIn what it describes as an industry first, TT Electronics has launched a line of thick-film high-voltage chip resistors that are fully lead-free. The Green High-Voltage Chip (GHVC) resistor series allows manufacturers to achieve long-term Restriction of Hazardous Substances (RoHS) compliance, eliminating a reliance on RoHS exemptions and future-proofing medical and industrial equipment designs.

[Learn more about chip resistors.]

The series comprises E24 and E96 resistance values from 25 kΩ to 100 MΩ, in standard EIA 1206, 2010 and 2512 chips with power ratings of 0.3 W, 0.5 W and 1.0 W respectively. Specified with DC- or AC-peak limiting element voltage (LEV) up to 3000 V for 2512 chips, and up to 4000 V overload, the GHVC series is designed to save both board space and bill of materials.

The resistors offer rugged specs such as a 1.2/50 μs surge-voltage rating of 7 kV and ambient operating temperature range of -55° C to 125° C. Temperature coefficient of ±100 ppm/° C and voltage coefficient of -1.5 ppm/V allows consistent parameters over wide-ranging conditions. Their ASTM-B-809 tested anti-sulfur terminations also allow reliability and stability in sulfurous environments such as mining or chemical processing.

Applications include compact power supplies, circuit breakers and medical monitors. More information on TT Electronics resistors can be found here. For more on APEC, visit our dedicated section Electronics360 covers APEC 2019.



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