Panasonic ERJ-2RKF1503X 150K ohm 1% 0402 SMD Thick Film Resistor 1345 PCS

Panasonic ERJ-2RKF1503X surface-mount thick-film resistor rated 150K ohm with ±1% tolerance in the compact 0402 / 1005 metric package.

This precision chip resistor is suitable for bias networks, voltage dividers, pull-up and pull-down circuits, feedback networks, signal conditioning, sensor interfaces, analog support circuitry, digital electronics, and general high-density PCB repair.

The original distributor packaging identifies Panasonic ERJ-2RKF1503X and describes the device as a 0402 thick-film resistor with 150K ohm resistance and 1% tolerance. The reel label shows country of origin China and date code 1631.

Lifecycle: ACTIVE.

HISTORICAL BACKGROUND: Panasonic traces its origins to 1918, when Konosuke Matsushita founded the business that later became one of Japan’s largest electronics manufacturers. Panasonic developed extensive component operations alongside its consumer electronics business, including resistors, capacitors, relays, switches, sensors, batteries, semiconductors, and industrial electronic components.

The ERJ family became one of Panasonic’s major surface-mount resistor lines as electronic manufacturing transitioned toward automated PCB assembly. Thick-film resistor construction uses a resistive material deposited onto a ceramic substrate and trimmed to the required resistance value, producing compact and economical components suitable for high-volume electronics.

The 0402 / 1005 metric package measures approximately 1.0 x 0.5 mm and became widely used as circuit boards moved toward greater component density. These miniature resistors are commonly found throughout communications equipment, computers, industrial controls, automotive electronics, consumer devices, and embedded systems.

The 150K-ohm value is useful in high-impedance bias networks, analog feedback, voltage dividers, sensor conditioning, timing-related support circuits, pull-up networks, and other circuits where a comparatively large resistance is required without consuming significant PCB area.

The ±1% tolerance provides substantially better resistance control than traditional ±5% general-purpose resistors and is useful where divider ratios, amplifier gain, threshold voltages, or bias conditions depend on predictable resistance values.