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FN258L-100-35 Equivalent & Substitute Parts
Part Overview
The FN258L-100-35 is a three-phase (Delta) EMC/EMI line filter rated for 100 A with chassis mount configuration and terminal block termination. This component is designed for inverters and power drive systems operating at DC ~ 60Hz frequencies. The part is classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product portfolio. Organizations currently using this filter or designing systems with legacy component requirements must identify functionally equivalent alternatives that maintain electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | FN258L-100-35 |
| Manufacturer | Schaffner EMC Inc. |
| Filter Type | Three Phase (Delta) |
| Configuration | Two Stage |
| Current Rating | 100 A |
| Voltage - Phase to Ground/Neutral | 277 V |
| Voltage - Phase to Phase | 480 V |
| Frequency - Operating | DC ~ 60Hz |
| Mounting Type | Chassis Mount |
| Termination Style | Terminal Block |
| Operating Temperature Range | -25°C ~ 100°C |
| Product Status | Not For New Designs |
| RoHS Status | ROHS3 Compliant |
| Approval Agencies | CSA, ENEC, UR |
Substitute Part Grouping Explanation
Substitution eligibility for the FN258L-100-35 is determined by the following critical parameters:
- Filter Type: Three Phase (Delta) configuration
- Current Rating: 100 A minimum
- Mounting Type: Chassis Mount
- Termination Style: Terminal Block
- Configuration: Two Stage EMC/EMI filtering
- Operating Frequency: DC ~ 60Hz capability
- Applications: Inverters and Power Drive Systems
The substitute part FN3288-100-35-C35-R65 meets all these core requirements. While voltage ratings differ between the main part and substitute, both components are rated for three-phase delta configurations at 100 A with identical mounting and termination characteristics. The substitute represents an active product with enhanced operating temperature range and higher voltage capability.
Parameter Comparison
| Parameter | FN258L-100-35 | FN3288-100-35-C35-R65 |
|---|---|---|
| Manufacturer | Schaffner EMC Inc. | Schaffner EMC Inc. |
| Filter Type | Three Phase (Delta) | Three Phase (Delta) |
| Configuration | Two Stage | Two Stage |
| Current Rating | 100 A | 100 A |
| Voltage - Phase to Ground/Neutral | 277 V | 305 V |
| Voltage - Phase to Phase | 480 V | 530 V |
| Frequency - Operating | DC ~ 60Hz | DC ~ 60Hz |
| Mounting Type | Chassis Mount | Chassis Mount |
| Termination Style | Terminal Block | Terminal Block |
| Operating Temperature Range | -25°C ~ 100°C | -40°C ~ 100°C |
| Product Status | Not For New Designs | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Applications | Inverters, Power Drive Systems | Inverters, Power Drive Systems |
Engineering Selection Recommendations
The FN3288-100-35-C35-R65 is the designated substitute for the FN258L-100-35 based on functional equivalence in filter topology, current capacity, and application domain. Both components are manufactured by Schaffner EMC Inc. and maintain ROHS3 compliance and REACH unaffected status.
The substitute part offers the following advantages:
- Active product status, ensuring continued availability and support
- Extended lower operating temperature limit (-40°C versus -25°C)
- Higher voltage ratings (530V phase-to-phase, 305V phase-to-ground versus 480V and 277V respectively)
- Identical current rating, mounting configuration, and termination style
Selection of the FN3288-100-35-C35-R65 is appropriate for applications requiring the electrical and mechanical characteristics of the FN258L-100-35, particularly where extended temperature range or higher voltage tolerance is beneficial.
Frequently Asked Questions (FAQ)
Q: Can the FN3288-100-35-C35-R65 directly replace the FN258L-100-35 in existing designs?
A: Yes. Both components share identical three-phase delta filter topology, 100 A current rating, two-stage configuration, chassis mount design, and terminal block termination. The substitute accommodates the same applications in inverters and power drive systems.
Q: What are the voltage differences between these parts?
A: The FN258L-100-35 is rated 480V phase-to-phase and 277V phase-to-ground. The FN3288-100-35-C35-R65 is rated 530V phase-to-phase and 305V phase-to-ground. The substitute supports higher voltage levels while maintaining compatibility with the original part's electrical specifications.
Q: Why is the FN258L-100-35 marked "Not For New Designs"?
A: This designation indicates the part has been superseded in the manufacturer's active product line. The FN3288-100-35-C35-R65 represents the current generation equivalent with enhanced specifications and ongoing manufacturer support.
Q: Are both parts RoHS compliant?
A: Yes. Both the FN258L-100-35 and FN3288-100-35-C35-R65 are ROHS3 compliant and REACH unaffected.
Q: What is the operating temperature difference?
A: The FN258L-100-35 operates from -25°C to 100°C. The FN3288-100-35-C35-R65 operates from -40°C to 100°C, providing a 15°C lower temperature capability.
Q: Are the packaging and termination identical?
A: Yes. Both components use tray packaging and terminal block termination, ensuring mechanical and electrical interface compatibility.
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