Naked Z-foil resistor virtually eliminates distortion in audio applications

Un-encapsulated ultra-precision resistor sets a new benchmark for audio clarity
Achieves less than -40 dB current noise
Trimmed to any tolerance or resistance value from 10 Ω to 100 kΩ

Charcroft announce the immediate availability of a new, naked ultra-high-precision resistor for high-end consumer and professional audio applications. Based on Vishay’s Bulk Metal® Z Foil resistor technology, the Charcroft CAR resistor is supplied with a protective coating, rather than moulding or encapsulation, to deliver virtually distortion-free signal processing for the highest level of perceived sound clarity.

Charcroft’s managing director, Paul Newman, explained, “These resistors build on the performance achieved by the previous generation of foil resistors to establish a new benchmark for clarity and purity. They are designed to improve signal processing integrity when replacing conventional resistors in differential amplifiers or power supplies for high-end audio products. CAR resistors can also be used in the feedback, loading and gain stages of audio circuits”.

In addition to a low current noise of less than -40 dB, CAR resistors achieve an excellent temperature coefficient of resistance (TCR) and power coefficient of resistance (PCR), whilst offering a fast rise time of 1.0 ns without ringing. They also feature a non-inductive non-hot-spot design and withstand electrostatic discharges of over 25 kV. CAR resistors can be trimmed to any tolerance and any value within the resistance range of 10Ω to 100kΩ and are available now, with a typical lead-time of 72 hours for samples, and three weeks for standard orders.

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