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MOSX2CT52R2R4J Equivalent & Substitute Parts
Part Overview
The MOSX2CT52R2R4J is a 2.4 Ohms ±5% 2W through-hole resistor manufactured by KOA Speer Electronics, Inc. This reduced-size leaded resistor features metal oxide film composition with flame retardant coating and safety characteristics. The component is classified as Active product status with full ROHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 2.4 Ohms |
| Tolerance | ±5% |
| Power Rating | 2W |
| Composition | Metal Oxide Film |
| Package Type | Axial |
| Operating Temperature Range | -55°C ~ 200°C (Main Part) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution eligibility for the MOSX2CT52R2R4J is determined by strict equivalence across the following parameters:
- Resistance value: 2.4 Ohms (exact match required)
- Tolerance: ±5% (exact match required)
- Power rating: 2W (exact match required)
- Composition: Metal Oxide Film (exact match required)
- Package: Axial through-hole (exact match required)
- Regulatory compliance: ROHS3 Compliant (minimum requirement)
- Moisture sensitivity: MSL 1 (exact match required)
The substitute part RSF200JB-73-2R4 from YAGEO meets all core electrical and mechanical criteria. Physical dimensions vary slightly between manufacturers, and operating temperature range extends to 235°C for the substitute, which represents an expanded capability within acceptable parameters.
Parameter Comparison
| Parameter | MOSX2CT52R2R4J (KOA Speer) | RSF200JB-73-2R4 (YAGEO) |
|---|---|---|
| Resistance | 2.4 Ohms | 2.4 Ohms |
| Tolerance | ±5% | ±5% |
| Power Rating | 2W | 2W |
| Composition | Metal Oxide Film | Metal Oxide Film |
| Features | Flame Retardant Coating, Safety | Flame Proof, Safety |
| Temperature Coefficient | ±300ppm/°C | Not specified |
| Operating Temperature | -55°C ~ 200°C | -55°C ~ 235°C |
| Package / Case | Axial | Axial |
| Size / Dimension | 0.157" Dia x 0.472" L (4.00mm x 12.00mm) | 0.197" Dia x 0.610" L (5.00mm x 15.50mm) |
| Number of Terminations | 2 | 2 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the MOSX2CT52R2R4J and RSF200JB-73-2R4 are Active product status components with full ROHS3 compliance and unlimited moisture sensitivity ratings. Selection between these parts should be based on the following factors:
The MOSX2CT52R2R4J offers a reduced physical footprint (4.00mm diameter x 12.00mm length) suitable for space-constrained applications. The RSF200JB-73-2R4 provides an extended operating temperature range to 235°C, which may be advantageous in high-temperature environments. Both components maintain identical electrical specifications and safety certifications. Physical dimension differences require verification against PCB layout and mechanical assembly constraints before substitution.
Frequently Asked Questions (FAQ)
Q: Can RSF200JB-73-2R4 be used as a direct replacement for MOSX2CT52R2R4J?
A: Yes, provided that physical dimensions are compatible with the PCB layout. The RSF200JB-73-2R4 has a larger diameter (5.00mm vs 4.00mm) and length (15.50mm vs 12.00mm). All electrical parameters, tolerance, power rating, and regulatory compliance are equivalent.
Q: What is the significance of the different operating temperature ranges?
A: The MOSX2CT52R2R4J operates from -55°C to 200°C, while the RSF200JB-73-2R4 extends to 235°C. Both cover standard industrial temperature ranges. Selection depends on application requirements. The extended range of the substitute does not create incompatibility.
Q: Are there differences in flame retardant properties between these parts?
A: The MOSX2CT52R2R4J features flame retardant coating, while the RSF200JB-73-2R4 is flame proof. Both provide safety characteristics suitable for their respective applications. Flame proof represents an enhanced safety specification.
Q: How do physical dimension differences affect circuit board design?
A: The substitute part is larger in both diameter and length. PCB footprints, lead spacing, and component placement must accommodate the RSF200JB-73-2R4 dimensions. Verify mechanical clearance before substitution.
Q: Are both parts compliant with current regulatory standards?
A: Yes. Both the MOSX2CT52R2R4J and RSF200JB-73-2R4 are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements for electronic components.
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