1812J0500272MJTE03

Overview

The Knowles Syfer 1812J0500272MJTE03 is a surface-mount feed-through capacitor designed for high-frequency noise suppression. It features a capacitance of 2700 pF with a voltage rating of 50 VDC and a tolerance of ±20%. The component utilizes C0G (NP0) dielectric material, ensuring stable performance across an operating temperature range of -55°C to +125°C. Housed in a standard 1812 (4532 metric) package, it integrates a built-in current handling capability of 50 mA, distinguishing it from standard MLCCs by providing both decoupling and filtering functions in a compact form factor.

Feature Summary

• Integrated feed-through architecture combines capacitive coupling with series resistance for effective EMI/RFI attenuation
• High current carrying capacity allows direct integration into power lines without external protection components
• C0G/NP0 dielectric ensures minimal capacitance variation over temperature and voltage changes

Applications

• High-speed digital signal line filtering
• Power supply input/output decoupling
• RF circuit impedance matching and noise suppression

Procurement Notes

Verify the specific suffix 'E03' against official manufacturer documentation to confirm terminal configuration and reel specifications. Ensure compatibility with automated pick-and-place equipment regarding the 1812 footprint dimensions. Confirm RoHS compliance status through the latest datasheet revision before finalizing procurement orders.

Selection Notes

Select this component when space constraints prevent the use of discrete filter networks. The integrated feed-through design simplifies PCB layout by reducing component count. Verify that the 50 mA current limit meets the application's peak load requirements to prevent thermal degradation or failure during operation.

Part Context

This part belongs to the Knowles Syfer 1812J series of feed-through capacitors. Unlike standard multilayer ceramic capacitors, these devices incorporate a resistive element in series with the capacitance to dampen resonances and provide superior high-frequency noise absorption characteristics for sensitive electronic circuits.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source data. Consult the manufacturer's catalog for equivalent feed-through capacitors with matching 2700 pF capacitance and 50 VDC ratings.