First resistors manufactured in fully automated process
The product group of Vishay Precision Group, VPG Foil Resistors, has announced that its Alpha Electronics brand has introduced a series of precision surface-mount Bulk Metal Foil resistors that are the first such devices to be manufactured in a fully automated process — providing competitive pricing in high-volume applications for OEMs.
Made in Japan, RW series resistors feature low TCR of ±2 ppm/°C or ±5 ppm/°C and resistance tolerance as low as ±0.01% in 0603, 0805, and 1206 case sizes.
The devices released today are optimised for precision instrumentation, automatic test equipment, scales, audio equipment, and any medical or industrial applications that require resistors with extremely tight load-life stability of ±0.005% typical at 70°C and rated power for 2,000 hours. In these applications, the devices provide superior TCR and long-term stability when compared to thin film resistors, as well as shorter lead times. In addition, the RW series' industry-standard packages eliminate the need for PCB changes in existing designs.
Offered in the 0603 package with a power rating of 0.1W and resistance to 5kΩ, the RWA is ideal for applications where space savings are a primary concern. The RWB features a 0.2W power rating and resistance to 10kΩ in the most common package size: the 0805. With a 0.3W power rating and resistance to 30kΩ, the RWC is ideal for converting 4 to 20mA input signals into 1 to 5V output signals in applications such as factory automation and process control. All three devices are RoHS-compliant.
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