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LF-202-9 Equivalent & Substitute Parts
Part Overview
The KEMET LF-202-9 is a single-phase EMC/EMI line filter rated for 250VDC/VAC at 2A with chassis mount configuration and wire lead 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 and replacement applications where the original part is no longer procurable.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Filter Type | Single Phase |
| Configuration | Single Stage |
| Voltage - Rated DC | 250V |
| Voltage - Rated AC | 250V |
| Current | 2 A |
| Mounting Type | Chassis Mount |
| Termination Style | Wire Leads |
| Operating Temperature Range | -25°C ~ 55°C |
| Applications | General Purpose |
| RoHS Status | ROHS3 Compliant |
Substitute Part Grouping Explanation
Substitution of the LF-202-9 is based on electrical and mechanical parameter equivalence. The following criteria establish functional interchangeability:
Critical Matching Parameters:
- Filter Type: Single Phase
- Configuration: Single Stage
- Voltage Rating: 250VDC/VAC minimum
- Current Rating: 2A minimum
- Mounting Type: Chassis Mount
- Termination Style: Wire Leads
The RSEL-2002W from TDK-Lambda Americas Inc meets all critical electrical and mechanical parameters required for direct substitution. Both components share identical voltage ratings, current capacity, filter topology, and physical mounting characteristics.
Parameter Comparison
| Parameter | LF-202-9 (KEMET) | RSEL-2002W (TDK-Lambda) | Match Status |
|---|---|---|---|
| Filter Type | Single Phase | Single Phase | Equivalent |
| Configuration | Single Stage | Single Stage | Equivalent |
| Voltage - Rated DC | 250V | 250V | Equivalent |
| Voltage - Rated AC | 250V | 250V | Equivalent |
| Current | 2 A | 2 A | Equivalent |
| Mounting Type | Chassis Mount | Chassis Mount | Equivalent |
| Termination Style | Wire Leads | Wire Leads | Equivalent |
| Operating Temperature Range | -25°C ~ 55°C | -25°C ~ 85°C | RSEL-2002W Exceeds |
| Product Status | Last Time Buy | Active | Substitute Available |
| RoHS Status | ROHS3 Compliant | RoHS Compliant | Equivalent |
| REACH Status | REACH Unaffected | REACH Unaffected | Equivalent |
| ECCN | EAR99 | EAR99 | Equivalent |
| HTSUS Code | 8548.00.0000 | 8548.00.0000 | Equivalent |
Engineering Selection Recommendations
The RSEL-2002W is a direct functional substitute for the LF-202-9. Selection criteria are based on the following factors:
Electrical Equivalence: Both components maintain identical voltage and current ratings across DC and AC specifications, ensuring equivalent performance in circuit applications.
Mechanical Compatibility: Chassis mount configuration with wire lead termination is identical, allowing direct installation in existing mechanical assemblies without modification.
Regulatory Compliance: The RSEL-2002W carries CSA, EN, and UL approvals, providing broader certification coverage than the original part. Both components maintain RoHS and REACH compliance status.
Product Availability: The RSEL-2002W is in Active production status with 1138 units in stock, compared to the LF-202-9 Last Time Buy status with 799 units available. The substitute part provides long-term procurement security.
Operating Temperature: The RSEL-2002W supports an extended operating temperature range of -25°C to 85°C, exceeding the LF-202-9 specification of -25°C to 55°C. This provides additional thermal margin for demanding applications.
Frequently Asked Questions (FAQ)
Q: Can the RSEL-2002W replace the LF-202-9 in existing designs?
A: Yes. The RSEL-2002W meets all critical electrical and mechanical parameters. Identical voltage ratings (250VDC/VAC), current capacity (2A), filter topology (single-phase, single-stage), and physical mounting (chassis mount, wire leads) ensure functional equivalence.
Q: What are the key differences between these components?
A: The primary differences are product status and operating temperature range. The LF-202-9 is Last Time Buy with a -25°C to 55°C operating range. The RSEL-2002W is Active production with an extended -25°C to 85°C range. The RSEL-2002W also carries additional regulatory approvals (CSA, EN, UL).
Q: Are there any compliance concerns with substitution?
A: No. Both components maintain RoHS and REACH compliance. The RSEL-2002W provides enhanced regulatory coverage through CSA, EN, and UL certifications. ECCN and HTSUS classifications are identical.
Q: Does the extended temperature range of the RSEL-2002W affect compatibility?
A: No. Extended operating temperature capability is a superset of the original specification. Applications operating within the LF-202-9 temperature range will function identically with the RSEL-2002W.
Q: What is the inventory status for each part?
A: The LF-202-9 has 799 units available as Last Time Buy stock. The RSEL-2002W has 1138 units in Active production inventory, providing greater long-term availability.
Q: Are there any packaging differences?
A: Both components are supplied in Bulk packaging. No special handling or packaging modifications are required for substitution.
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