Panasonic ERJ-2RKF3003X 300K ohm 0402 SMD Resistors 215 PCS
Full Description & History
Genuine Panasonic ERJ-2RKF3003X thick-film surface-mount chip resistors, supplied as one lot containing 215 pieces from original Newark distributor-labeled stock.
These miniature 0402 SMD resistors feature a nominal resistance of 300K ohm (300,000 ohm), ±1% tolerance, and a 0.1W (1/10W) power rating.
Part of Panasonic's ERJ-2RK series, these precision-tolerance resistors are designed for compact electronic assemblies requiring accurate fixed resistance and efficient use of printed circuit board space.
The ERJ-2RKF3003X features a temperature coefficient of ±100 ppm/°C, an operating temperature range of -55°C to +155°C, and AEC-Q200 automotive qualification.
The standard 0402 (1005 Metric) surface-mount package measures approximately 1.0 × 0.5 mm, with a maximum component height of 0.4 mm.
These components use thick-film resistor technology and feature two surface-mount terminations.
Typical applications include high-impedance sensing circuits, precision voltage dividers, transistor bias networks, pull-up and pull-down circuits, feedback networks, signal conditioning, industrial control electronics, instrumentation, automotive electronics, communications equipment, and component-level PCB repair.
The original Newark distributor label identifies Panasonic as the manufacturer, confirms RoHS compliance, and lists China as the country of origin.
Lot Size: 215 Pieces
HISTORICAL BACKGROUND:
Panasonic traces its origins to 1918, when Konosuke Matsushita established an electrical manufacturing business in Osaka, Japan.
Over the following decades, Panasonic developed into a major international manufacturer of electronic equipment and components, including resistors, capacitors, batteries, and other passive electronic technologies.
Panasonic's ERJ resistor family represents its established range of thick-film surface-mount chip resistors developed for compact electronic assemblies and automated printed circuit board manufacturing.
Thick-film resistor technology uses a resistive composition deposited onto a ceramic substrate. This manufacturing process provides an economical method of producing miniature fixed-resistance components across a broad range of electrical resistance values.
As electronic equipment became smaller and printed circuit boards increasingly relied on automated assembly, miniature 0402 resistors became essential components in consumer electronics, telecommunications equipment, industrial controls, instrumentation, and automotive electronic systems.
Panasonic's ERJ-2RK series provides ±1% precision-tolerance thick-film resistors designed for electronic applications requiring greater resistance accuracy than conventional ±5% components.
The ERJ-2RKF3003X provides a nominal resistance of 300K ohm with ±1% tolerance and a 0.1W power rating in the miniature 0402 package.
Its relatively high resistance value makes it useful in appropriately designed high-impedance sensing networks, voltage-divider circuits, electronic bias systems, and low-current signal-processing applications.
The component's AEC-Q200 qualification supports its use in appropriately designed automotive electronic assemblies.
The original Newark distributor packaging preserves the manufacturer's part number, production lot identification, and component provenance.
The packaging identifies China as the country of origin for this particular stock.
LIFECYCLE: ACTIVE
Unused new old stock from legacy inventory. Packaging, age, and cosmetic condition may vary.
Pipeline quantities are informational and may change after arrival, inspection, sorting, testing, or donor teardown.
Compatible Radios / Boards
Compatible Radios / Boards
Suitable for electronic assemblies requiring a 300K ohm, ±1% thick-film surface-mount resistor in the 0402 (1005 Metric) package with a 0.1W power rating. Applications include high-impedance sensing, voltage dividers, transistor bias networks, pull-up and pull-down circuits, feedback networks, signal conditioning, automotive electronics, industrial controls, instrumentation, communications equipment, and PCB repair. Verify resistance, tolerance, operating voltage, power dissipation, temperature requirements, and PCB footprint before installation.
RF Boneyard Bench Notes
RF Boneyard Bench Notes
Original Newark distributor-labeled Panasonic stock. Manufacturer part number, 300K ohm resistance, ±1% tolerance, 0.1W power rating, and country of origin are supported by the original packaging and published component specifications. The exact manufacturer part number is currently listed as ACTIVE by DigiKey. Individual resistors have not been electrically tested.
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