NOJA476M001RWJ

Overview

The KYOCERA AVX NOJA476M001RWJ is a low-profile niobium oxide capacitor from the OxiCap NOJ series. It features a capacitance of 47 µF with a DC voltage rating of 1.8 VDC. The component utilizes a 1206 (3216 metric) surface mount package, measuring 3.2 mm in length, 1.6 mm in width, and 1.8 mm in height. Key electrical specifications include an equivalent series resistance (ESR) of 1.6 Ohms, a leakage current of 1.7 µA, and a ripple current rating of 237 mA. Tolerance for both capacitance and ESR is specified at 20%. The device operates within a temperature range of -55°C to +105°C.

Feature Summary

• Utilizes niobium oxide technology to provide high volumetric efficiency in a compact form factor.
• Designed as a low-profile surface mount component suitable for space-constrained applications.
• Offers stable performance across a wide operating temperature range.

Applications

• Smartphones and mobile communication devices
• Wearable electronic devices
• Consumer equipment such as tablets and portable media players

Procurement Notes

Verify that the application circuit voltage does not exceed the 1.8 VDC rating to ensure reliability. Confirm that the PCB footprint matches the 1206 (3216 metric) dimensions, specifically accounting for the 1.8 mm height constraint. Ensure soldering profiles are compatible with the specified operating temperature range of -55°C to +105°C. Check for RoHS compliance status if required by specific project regulations.

Selection Notes

Select this component when a low voltage rating near 1.8 V is required alongside significant capacitance in a small package. Compare against tantalum capacitors where lower ESR or different failure modes are critical. Consider the 1.6 Ohm ESR value for ripple current handling requirements. Evaluate the 20% tolerance against circuit sensitivity needs. This part is suitable for decoupling and filtering in low-voltage digital logic circuits.

Part Context

This capacitor belongs to the OxiCap NOJ series, which represents KYOCERA AVX's niobium oxide technology line. Niobium oxide capacitors offer advantages in cost and availability compared to traditional tantalum types while maintaining similar physical footprints. The NOJ series is engineered for high-volume consumer electronics manufacturing, providing a reliable alternative for bulk and bypass applications in portable devices.

Replacement Considerations

Direct substitutes within the same series include other values in the NOJ family with matching 1206 packaging. Cross-technology replacements may involve tantalum capacitors of equivalent capacitance and voltage, though ESR and leakage characteristics will differ. Verify pin compatibility and thermal performance when substituting with MLCCs, noting that dielectric behavior varies significantly between technologies.

FAQ

What is the maximum operating temperature for the NOJA476M001RWJ?

The maximum operating temperature is +105°C.

Does this capacitor have polarity?

Yes, niobium oxide capacitors are polarized components and must be connected with correct polarity in the circuit.

What is the typical ESR value for this part?

The typical Equivalent Series Resistance (ESR) is 1.6 Ohms.