Manufacturer Part Number

4201-003LF

Description

High-performance LC (Pi) filter with 2000pF capacitance. Chassis mount, axial bushing package. Third-order low-pass filter design for EMI suppression. Designed for high-current applications with up to 15A rating. Ideal for data line filtering in mobile electronics and other sensitive electronics needing EMI control.

Specifications

Filter type: Low pass

Order: 3rd order (Pi network topology)

Capacitance: 2000pF

Current rating: 15A

Voltage rating: 100V

Attenuation: 38dB at 100MHz

Number of channels: 1

Package: Axial, bushing

Mounting style: Chassis mount

Dimensions: 0.187 inch diameter x 0.359 inch length (4.75mm x 9.12mm)

Operating temperature range: -55°C to +125°C

Moisture Sensitivity Level: 1 (unlimited)

RoHS3 compliant

REACH unaffected

ESD protection: No

Manufacturer: Tusonix, a Subsidiary of CTS Electronic Components

Product status: Active

Inventory: 3700 pieces in stock

Device Structure

Axial leaded, bushing-style chassis mount

Single-channel with integrated LC Pi network

Designed for high mechanical durability and stable electrical performance under varied temperatures

Encapsulated to resist environmental influences

Performance Characteristics

Provides significant EMI suppression—attenuates signals by 38dB at 100MHz

Suitable for applications needing high-current capacity (up to 15A) and low-pass characteristics

Operates reliably across a wide temperature range

No ESD protection—external ESD measures may be needed

Application Environments

Data lines in mobile devices

Sensitive electronic circuits requiring EMI/RFI filtering

Industrial equipment where high currents and EMI suppression are needed

Automotive, telecommunications, military, and aerospace chassis applications

Systems demanding RoHS and REACH compliance

Selection Guidelines

Choose this filter when you need third-order LC (Pi) low-pass filtering of signals

Best for lines carrying up to 15A and working voltages up to 100V

Ensure mounting on chassis is possible and space allows for axial bushing package

Use in applications where strong EMI noise suppression at frequencies up to 100MHz is required

Not suitable if you need built-in ESD protection

Verify inventory meets your volume requirements

Usage Considerations

Install on a suitable metal chassis for proper function and mechanical stability

Observe polarity and mechanical orientation during installation

Do not exceed rated current (15A) or voltage (100V)

Protect circuit from ESD if required, as the filter does not include ESD protection

Monitor operating temperature to ensure reliability

Store and handle in dry environments, MSL1 rating ensures no humidity issues but avoid surface contamination

Potential Equivalent/Replacement Models

For this specific filter—4201-003LF—equivalent or alternate models depend on required capacitance, voltage, current, and package configuration.

Common alternatives may include other parts in the Tusonix 4200 series with matching electrical ratings.

Comparable models from other manufacturers, such as TDK, Murata, and EPCOS, often offer LC Pi filters with similar specs; however, you must verify compatibility in electrical and mechanical parameters.

If you need direct equivalents, or if your application requires different values or features like built-in ESD protection, please contact the Ariat-Tech sales team for expert advice and a detailed alternative parts list.

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