Ultra Small Size Current Sense Resistors

12th March 2007

ES Admin

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The new series of Ultra Small Size Current Sense Resistors complements TT Welwyn’s existing LR Series, offering the same thick-film on ceramic construction but providing increased choice for product designers in the form of three smaller sizes options of 0805, 0603 and 0402. These smaller sizes save space on the circuit board, allowing the production of smaller and lighter products.

Designed for current sensing in power electronic systems, the fully RoHS compliant LRCS series is suitable for a range of applications including the monitoring of power usage and battery life; and provision of output protection for power supplies; as well as for a range of consumer and automotive products such as satellite navigation, hand-held PDA’s and digital set-top boxes.

The series offers ohmic values as low as 20mW to minimise power consumption and has an ambient temperature range of -55 to +155. Exhibiting a resistance range up to 1R0 and excellent heat dissipation qualities, the series offers designers enhanced power handling capabilities and protection from the threat of localised heating, resulting in the production of a more energy efficient product.

As demand continues to grow for reduced size, handheld and portable devices operating at low voltages, designers will look to manufacturers to produce smaller and smaller current sense resistors. Welwyn anticipates that demand for its latest range of small size resistors will be high.

For further information or technical advice regarding the LRCS series or guidance on any resistor technologies contact +44 (0)1670 536731.