Panasonic ERJ1TRQF1R0U is a 14piece pack of thinfilm chip resistors from the ERJ1 series. The 1R0 value shown in the part number indicates a resistance of 1 ohm, with a tolerance code F, meaning ±1%. The ERJ1 family is designed for compact SMD applications and offers stable performance in a small 0402size package. Key attributes Type: Thinfilm chip resistor Series: ERJ1 Value: 1R0 (1 ohm) Tolerance: F (±1%) Size: ERJ1 package (small SMD form factor) Material and construction: ceramic substrate with thinfilm resistor element Packaging: 14 pieces per package Suitable for: SMD reflow soldering on standard PCBs; appropriate for density layouts Benefits and why you need it Precise lowohm resistance in a compact form factor supports accurate current sensing and load regulation. Narrow tolerance (±1%) helps improve circuit predictability in power management, sensing, and logic interfaces. Small footprint enables higher PCB density without sacrificing performance or reliability. Thinfilm construction provides stable resistance over temperature and time, suitable for demanding electronics applications. Performance and compatibility Designed for surfacemount assembly on conventional PCBs. Compatible with standard reflow soldering processes used in electronics manufacturing. Suitable for applications requiring a small, reliable 1ohm resistor with tight tolerance. Use cases and applications Current sensing in DCDC power supplies or voltage regulator modules where a lowvalue resistor is needed for sensing or feedback. Resistor in a precision voltage divider for ADC input conditioning or reference calibration in compact handheld devices. Load or ballast resistor in LED driver circuits where a stable, low resistance supports consistent current control. Notes Exact temperature coefficient (TCR) and power rating are defined by the ERJ1TRQF1R0U specification from Panasonic; refer to the official datasheet for detailed electrical characteristics.