RC0402FR-071K4L 1.4KΩ 1% 0402 Thick Film Chip Resistor

ElecSuppliers Part Number GuideAug 22, 2026

RC0402FR-071K4L is a 1.4 KΩ thick film chip resistor designed for compact electronic circuits. It features a ±1% resistance tolerance and a 1/16 W power rating in a small 0402 surface-mount package.

The component is suitable for general-purpose resistance functions including voltage division, signal conditioning, biasing, pull-up and pull-down circuits. Its compact package makes it particularly useful for modern PCBs where component density and board size are important design considerations.

RC0402FR-071K4L Key Specifications

RC0402FR-071K4L has a nominal resistance of 1.4 KΩ with a ±1% tolerance.

Its rated power is approximately 0.063 W, equivalent to 1/16 W. The resistor has a temperature coefficient of approximately ±100 ppm/°C and an operating temperature range of about -55°C to +155°C.

The component uses thick film resistor technology and a two-terminal surface-mount construction. The 0402 package corresponds to approximately 1.0 mm × 0.5 mm, providing a very small PCB footprint.

1.4KΩ 0402 Chip Resistor

The 1.4 KΩ resistance value is commonly used in digital and analog electronic circuits.

RC0402FR-071K4L can be used as one resistor in a voltage-divider network, where the resistor ratio determines the voltage supplied to another circuit stage.

It can also be used for transistor biasing, signal pull-up or pull-down functions and feedback networks.

Because the component has a ±1% tolerance, it can provide more consistent resistance values than standard 5% resistors in applications where resistance accuracy matters.

0402 Thick Film Resistor

The 0402 package is widely used in compact electronic equipment.

Compared with larger 0603 or 0805 resistors, a 0402 resistor occupies considerably less PCB area. This allows designers to place more components within a limited board space.

The small size is particularly useful for communication devices, consumer electronics, sensors, embedded systems and compact industrial electronics.

However, 0402 components require accurate PCB land patterns and automated placement processes. Manual assembly and repair can also be more demanding because of the small physical dimensions.

RC0402FR-071K4L Power Rating

The rated power of RC0402FR-071K4L is approximately 0.063 W.

The actual power dissipated by the resistor can be calculated using:

P = I²R

or:

P = V²/R

For a 1.4 KΩ resistor, the nominal power rating corresponds to approximately 6.7 mA of current or about 9.4 V across the resistor under ideal calculation conditions.

In practical applications, designers should provide sufficient margin rather than continuously operating a miniature resistor at its maximum rated power.

RC0402FR-071K4L Voltage Considerations

The maximum working voltage is another important parameter when designing around a small chip resistor.

Even when calculated power dissipation is low, a circuit with a relatively high voltage across the resistor may approach its working-voltage limit.

For this reason, both voltage and power should be checked when selecting RC0402FR-071K4L.

In a voltage-divider circuit, the resistor's position in the divider also affects the voltage applied across the component.

±1% Resistance Tolerance

The ±1% tolerance provides relatively accurate initial resistance.

For the nominal 1.4 KΩ value, the resistance can theoretically fall within approximately 1.386 KΩ to 1.414 KΩ under the applicable initial tolerance conditions.

This level of tolerance is useful for voltage-divider circuits, feedback networks and other applications where resistor variation can affect system performance.

For higher-precision designs, the tolerance of other resistors in the circuit should also be considered.

±100ppm/°C Temperature Coefficient

RC0402FR-071K4L has a temperature coefficient of approximately ±100 ppm/°C.

The temperature coefficient indicates how the resistance changes as the component temperature changes.

This parameter becomes increasingly important when the resistor is used in precision measurement, reference or feedback circuits.

In general-purpose digital circuits, small resistance changes caused by temperature may have little practical effect. In precision analog circuits, however, the temperature coefficient can contribute directly to overall measurement error.

RC0402FR-071K4L Applications

RC0402FR-071K4L can be used in a wide variety of electronic circuits.

Common applications include voltage dividers, feedback networks, transistor biasing, signal conditioning, pull-up circuits and pull-down circuits.

The resistor can also be used around microcontrollers, sensors, communication interfaces and power-management ICs where relatively small resistance values are required.

Its 0402 package is especially useful in products where PCB space is limited.

RC0402FR-071K4L PCB Design

The small size of the 0402 package requires careful PCB design.

The recommended pad dimensions should be followed to achieve reliable solder joints. Excessive solder volume can affect component placement, while insufficient solder coverage can reduce mechanical and electrical reliability.

For automated assembly, accurate component placement and controlled solder-paste printing are important.

When RC0402FR-071K4L is installed near power components, designers should also consider the temperature generated by surrounding devices.

RC0402FR-071K4L Replacement

When replacing RC0402FR-071K4L, the resistance value should first be matched at 1.4 KΩ.

The ±1% tolerance, 1/16 W power rating and 0402 package should also be checked.

For precision circuits, the temperature coefficient should be compared as well. A replacement with the same resistance but a substantially different temperature coefficient could change circuit performance as temperature varies.

The package is particularly important because an 0603 or 0805 resistor may not fit the existing 0402 PCB footprint correctly.

RC0402FR-071K4L for Compact Electronics

RC0402FR-071K4L combines a 1.4 KΩ resistance, ±1% tolerance and 1/16 W power rating in a compact 0402 surface-mount package.

Its small size makes it suitable for high-density PCB layouts, while its thick film construction provides a practical solution for common resistance functions.

For new designs, engineers should evaluate resistance, tolerance, power, working voltage and temperature coefficient according to the application. For replacement projects, matching both the electrical specifications and physical package is important for reliable operation.