1812J0500472MJTE03

Overview

The Knowles Syfer 1812J0500472MJTE03 is a feed-through multilayer ceramic capacitor (MLCC) designed for high-frequency noise suppression. It features a capacitance of 4700 pF with a ±20% tolerance, rated for 50 VDC. The component utilizes C0G (NP0) dielectric material to ensure stable performance across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) surface-mount package, it integrates a central conductor capable of handling up to 50 mA current. This design allows the component to function as both a passive circuit element and a structural mounting point.

Feature Summary

• Integrates a central conductor to support signal transmission or power routing alongside capacitive filtering
• Provides effective electromagnetic interference (EMI) suppression through integrated feed-through architecture
• Maintains capacitance stability under thermal stress due to C0G/NP0 dielectric characteristics

Applications

• High-frequency noise filtering in RF circuits
• Power supply decoupling where board space is constrained
• Signal line protection in sensitive electronic assemblies

Procurement Notes

Verify the specific suffix configuration against the manufacturer's latest datasheet to confirm electrical ratings and termination materials. Ensure that the selected variant meets all applicable environmental compliance standards required for the target assembly. Cross-reference the part number with official distributor catalogs to confirm current availability and lead times before finalizing procurement plans.

Selection Notes

Select this component when a combined filtering and structural mounting solution is required within a 1812 footprint. Evaluate the maximum DC bias voltage and current carrying capacity of the central conductor against circuit requirements. Consider the C0G dielectric properties for applications demanding minimal capacitance variation over temperature and voltage changes.

Part Context

This component belongs to the Knowles Syfer 1812J series of high-reliability MLCCs. The 'J' designation indicates the 1812 case size, while the internal coding specifies the 50V rating and 4700pF value. The 'MJTE03' suffix typically denotes specific termination and packaging configurations within the Syfer portfolio, distinguishing it from standard planar MLCCs by its feed-through construction.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.