LF-240P LINE FILTER 250VDC/VAC 40A CHASSIS MOUNT

Part Overview

The LF-240P is a single phase EMC/EMI line filter manufactured by KEMET, rated for 250VDC/VAC at 40A with two-stage configuration and threaded post (M6) termination. This component is designated as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure continued availability for new designs and maintenance applications requiring compatible filtering performance within the specified electrical and mechanical parameters.

Substiute Parts

LF-240P

KEMETIn Stock: 1038LF-240P Datasheet

Current PartRFQ

TB1-40A0D0

DITIn Stock: 998TB1-40A0D0 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LF-240P are identified based on strict equivalence of the following critical parameters:

Electrical Equivalence Criteria:

• Filter Type: Single Phase
• Configuration: Two Stage
• Voltage Rating: 250V DC and 250V AC
• Current Rating: 40A
• Applications: General Purpose

Mechanical Equivalence Criteria:

• Mounting Type: Chassis Mount
• Package Type: Box

The substitute part TB1-40A0D0 (DIT manufacturer) satisfies all electrical equivalence requirements. The primary difference is termination style: the LF-240P uses threaded post (M6) termination, while TB1-40A0D0 uses terminal block termination. This represents a mechanical interface change requiring connector adaptation during integration.

Parameter Comparison

Engineering Selection Recommendations

For LF-240P Replacement:

The TB1-40A0D0 (DIT) is electrically equivalent to the LF-240P across all specified voltage, current, and filtering parameters. Selection of TB1-40A0D0 is appropriate when:

• Electrical performance requirements match the 250V/40A two-stage single phase filter specification
• Terminal block termination is compatible with system integration design
• Operating frequency range of 50 ~ 60Hz aligns with application requirements
• Extended operating temperature range (-25°C ~ 85°C) is acceptable or beneficial
• Regulatory compliance with CE, cCSAus, ENEC, and SEMKO certifications meets application standards

The primary integration consideration is termination interface change from threaded post (M6) to terminal block, requiring appropriate connector specification and assembly modification.

Frequently Asked Questions (FAQ)

Q: Can TB1-40A0D0 directly replace LF-240P without modification?

A: TB1-40A0D0 provides electrical equivalence for all filtering parameters. However, termination style differs: LF-240P uses threaded post (M6) while TB1-40A0D0 uses terminal block. Direct mechanical substitution requires connector adaptation.

Q: What are the critical parameters for line filter substitution?

A: Filter type (single phase), configuration (two stage), voltage rating (250V DC/AC), current rating (40A), and mounting type (chassis mount) determine substitution eligibility. Termination style and operating temperature range are secondary considerations dependent on system integration requirements.

Q: Is TB1-40A0D0 suitable for applications previously using LF-240P?

A: TB1-40A0D0 meets all electrical specifications for general purpose applications within the 250V/40A two-stage single phase filter category. Compatibility depends on termination interface requirements and operating frequency range (50 ~ 60Hz) alignment with application parameters.

Q: What compliance certifications does TB1-40A0D0 provide?

A: TB1-40A0D0 holds CE, cCSAus, ENEC, and SEMKO approvals. LF-240P approval agency information is not specified in available documentation.

Q: Are there packaging differences between LF-240P and TB1-40A0D0?

A: Both components are supplied in box packaging. Inventory availability differs: LF-240P has 1014 pieces in stock (Last Time Buy status), while TB1-40A0D0 has 917 pieces in stock (Active product status).