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UPCA164 超精密芯片陣列
UPCA Series
Ultra-precision thin film technology
Four matched resistor elements in 1206 footprint
Tight tolerance down to ±0.1% with ratio to ±0.05%
Low tracking TCR down to ±5ppm/°C
Marking
3-digit marking is used on the component. E.g. 103 = 10kΩ. . EIA-96 codes are used for E96 values. Other values and custom networks are unmarked All relevant information is recorded on the primary package or reel.
Solvent Resistance
The component is resistant to all normal industrial cleaning solvents suitable for printed circuits.
Construction
A thin-film material is selectively deposited on an alumina substrate together with metallic contacts at each end of the resistor.The unadjusted resistors are heat treated to give the required TCR and stability, and then a precisely controlled laser trim process adjusts the resistance value. Epoxy protection is applied and wrap-around terminations are added and plated with nickel then tin. Each resistor is measured immediately before packing into tape.
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