WLBD2012HCU400TH

Overview

The WLBD2012HCU400TH is a high-capacitance multilayer ceramic capacitor (MLCC) manufactured by Walsin Technology Corporation. It features a 1206 metric package size and offers a capacitance of 4000 pF with a tolerance of ±0.5pF (K code). The device operates at a rated voltage of 50V DC and utilizes X7R dielectric material for stable performance across varying temperatures. It supports a wide operating temperature range from -55°C to +125°C, ensuring reliability in demanding electronic environments.

Feature Summary

• Utilizes X7R dielectric material for consistent capacitance stability over temperature variations
• Designed for high-reliability applications with robust construction suitable for industrial and automotive sectors
• Offers precise capacitance tolerance for sensitive signal processing circuits

Applications

• Industrial control systems requiring stable filtering components
• Automotive electronics operating under extreme temperature conditions
• High-frequency signal coupling and decoupling in communication devices

Procurement Notes

Verify the specific suffix codes against official Walsin datasheets to ensure exact electrical characteristics. Confirm package dimensions and termination compatibility with your PCB layout. Request batch traceability documents for quality assurance in regulated industries. Validate that the component meets RoHS and REACH compliance standards required for your market.

Selection Notes

Select this component when high stability and precision are critical for circuit performance. Consider the X7R dielectric properties for applications involving moderate temperature fluctuations. Ensure the 50V rating provides sufficient margin for peak voltages in the design. Evaluate the 1206 footprint availability against space constraints in the final assembly.

Part Context

Walsin Technology Corporation is a global leader in passive components, offering a comprehensive portfolio including MLCCs, resistors, and inductors. The WLBD series represents their advanced thin-film or high-performance ceramic solutions designed for modern electronics. This specific model fits within their broader strategy to provide reliable, high-density components for complex circuit boards.

Replacement Considerations

Check for direct substitutes with identical 1206 footprint, 4000pF value, and X7R dielectric. Verify voltage ratings and temperature coefficients match or exceed original specifications. Consult manufacturer cross-reference lists for approved alternatives. Ensure pinout and mechanical dimensions are compatible without redesigning the PCB.