LF-230N Line Filter Equivalent & Substitute Parts

Part Overview

The KEMET LF-230N is a single-phase EMC/EMI line filter rated for 250VDC/VAC at 30A with chassis mount configuration and M6 threaded post termination. This component is classified as Last Time Buy, indicating discontinued production status. Identification of equivalent substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where the original part is no longer procurable.

Substiute Parts

LF-230N

KEMETIn Stock: 754LF-230N Datasheet

Current PartRFQ

ES1-T30

DITIn Stock: 1203ES1-T30 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LF-230N are identified based on strict equivalence of the following critical parameters:

Critical Matching Parameters:

• Single Phase filter type
• Single Stage configuration
• 250V DC and 250V AC voltage ratings
• 30A current capacity
• Chassis mount mechanical form factor
• Threaded post termination style

The DIT ES1-T30 qualifies as a substitute part because it matches all critical electrical parameters (voltage, current, filter type, configuration) and mechanical requirements (chassis mount, threaded post termination). Both parts are rated for identical voltage and current specifications and serve the same general-purpose EMC/EMI filtering application.

Parameter Variance Noted:

• Termination post size differs (M6 vs. M4) - requires mechanical verification during integration
• Operating temperature range differs (-20°C ~ 55°C vs. -25°C ~ 85°C) - substitute provides extended low-temperature capability
• Frequency specification provided for substitute (50 ~ 60Hz) but not specified for main part

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: DIT ES1-T30

The ES1-T30 is the qualified substitute for the LF-230N based on matching electrical specifications (250V DC/AC, 30A, single-phase, single-stage configuration) and mechanical form factor (chassis mount, threaded post termination).

Compliance Status:

• LF-230N: ROHS3 Compliant, REACH Affected
• ES1-T30: RoHS Compliant, includes additional certifications (CQC, CSA, cURus, TUV)

The ES1-T30 provides equivalent filtering performance with extended regulatory approvals and broader operating temperature range (-25°C ~ 85°C vs. -20°C ~ 55°C).

Integration Consideration: The termination post diameter differs between parts (M6 vs. M4). Mechanical verification of mounting hole compatibility is required during design integration. This difference does not affect electrical equivalence but requires physical validation in the target application.

Inventory Status:

• LF-230N: 713 Pcs available (Last Time Buy status)
• ES1-T30: 1172 Pcs available (Active product)

Frequently Asked Questions (FAQ)

Q: Can the ES1-T30 directly replace the LF-230N in existing designs?

A: Electrical substitution is valid. The ES1-T30 matches all critical electrical parameters (voltage, current, filter type, configuration). Mechanical verification is required due to termination post size difference (M6 vs. M4). Mounting hole compatibility must be confirmed before implementation.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution eligibility is determined by: filter type (single phase), configuration (single stage), voltage ratings (250V DC/AC), current rating (30A), mounting type (chassis mount), and termination style (threaded post). All these parameters must match between the original and substitute part.

Q: Does the operating temperature range difference affect substitution?

A: The ES1-T30 provides an extended operating temperature range (-25°C ~ 85°C) compared to the LF-230N (-20°C ~ 55°C). This represents a capability enhancement and does not restrict substitution. Applications operating within the LF-230N range are fully supported by the ES1-T30.

Q: Are there regulatory compliance differences between the parts?

A: Both parts are RoHS compliant. The ES1-T30 carries additional certifications (CQC, CSA, cURus, TUV) beyond the LF-230N. The LF-230N is REACH Affected; REACH status for ES1-T30 is not specified in available data.

Q: What is the significance of the M6 vs. M4 termination post difference?

A: The termination post diameter is a mechanical interface parameter. M6 and M4 refer to metric thread sizes. This difference requires verification of mounting hole sizing in the target application. Electrical performance is not affected by this mechanical variance.

Q: Why is the LF-230N classified as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has discontinued production. This classification necessitates identification of substitute parts for design continuity and future procurement. The ES1-T30 provides functional and electrical equivalence for ongoing applications.

Q: Is frequency specification important for substitution?

A: The ES1-T30 specifies 50 ~ 60Hz operating frequency; the LF-230N does not provide frequency specification in available data. Both parts are single-phase EMC/EMI filters suitable for general-purpose applications in standard industrial frequency ranges. Frequency specification does not restrict substitution for standard 50/60Hz applications.