Panasonic ERJ-2RKF49R9X 49.9 Ohm 1% 0402 SMD Thick Film Resistors - 140 Pieces
$10.95
Original labeled distributor NOS packet containing 140 Panasonic ERJ-2RKF49R9X precision thick-film surface-mount resistors. Each resistor has a resistance value of 49.9 Ohms, 1 percent tolerance, 0.1-watt / 1/10-watt power rating, and a temperature coefficient of plus or minus 100 ppm per degree C. These resistors use the compact 0402 imperial / 1005 metric SMD package, measuring approximately 1.0 x 0.5 mm and weighing approximately 0.8 mg each. Manufacturer specifications identify an operating-temperature range of -55 C to +155 C. Supplied on punched paper carrier tape with 2 mm component spacing for convenient handling and automated placement. Suitable for current limiting, sensing networks, voltage dividers, feedback circuits, bias networks, control boards, communications equipment, radio repair, audio electronics, test equipment, and general surface-mount circuit-board work. AEC-Q200 and RoHS compliant.
Historical Note: Panasonic's ERJ precision thick-film resistor family reflects the electronics industry's transition from larger leaded resistors to compact surface-mount components. Standardized 0402 resistors helped manufacturers increase circuit density while supporting high-speed automated placement and modern reflow-soldering production.
Origin Tracker
NOS / New Old Stock
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 with electronic circuits requiring a 49.9 Ohm, 1 percent, 0.1-watt resistor in a 0402 / 1005 metric surface-mount footprint. Buyer must verify resistance, tolerance, power rating, package dimensions, pad layout, temperature requirements, and circuit suitability before installation.
RF Boneyard Bench Notes
Original labeled distributor NOS stock containing 140 pieces. Packaging and visible component tape were inspected; individual resistors were not electrically tested.
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