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MOS2CT52R270J Equivalent & Substitute Parts
Part Overview
The MOS2CT52R270J is a 27 Ohm, 2W through-hole axial resistor manufactured by KOA Speer Electronics, Inc. This metal oxide film resistor features flame retardant coating and safety design characteristics. The component is classified as Active product status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when original inventory becomes unavailable, when alternative suppliers offer equivalent electrical and mechanical specifications, or when design flexibility permits component sourcing from multiple manufacturers while maintaining circuit performance and reliability standards.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Type |
|---|---|---|
| Resistance | 27 Ohms | Electrical |
| Tolerance | ±5% | Electrical |
| Power Rating | 2W | Electrical |
| Composition | Metal Oxide Film | Material |
| Package Type | Axial | Mechanical |
| Operating Temperature Range | -55°C ~ 200°C | Environmental |
| Number of Terminations | 2 | Mechanical |
| RoHS Status | ROHS3 Compliant | Compliance |
Substitute Part Grouping Explanation
Substitution eligibility for the MOS2CT52R270J is determined by strict equivalence across the following critical parameters:
Electrical Parameters: Resistance value must be 27 Ohms with ±5% tolerance. Power rating must be 2W minimum. Composition must be metal oxide film to ensure thermal stability and frequency response characteristics.
Mechanical Parameters: Package configuration must be axial through-hole with two terminations. Physical dimensions must accommodate standard PCB hole spacing and component mounting practices.
Environmental Parameters: Operating temperature range must encompass the minimum specification of -55°C to 200°C. Components with extended upper temperature limits remain compatible.
Compliance Parameters: RoHS3 compliance is mandatory. REACH unaffected status is required. ECCN and HTSUS classifications must align with export and tariff requirements.
The RSF200JB-73-27R manufactured by YAGEO meets all substitution criteria and qualifies as a direct equivalent component.
Parameter Comparison
| Parameter | MOS2CT52R270J (KOA Speer) | RSF200JB-73-27R (YAGEO) | Match Status |
|---|---|---|---|
| Resistance | 27 Ohms | 27 Ohms | Equivalent |
| Tolerance | ±5% | ±5% | Equivalent |
| Power Rating | 2W | 2W | Equivalent |
| Composition | Metal Oxide Film | Metal Oxide Film | Equivalent |
| Package Type | Axial | Axial | Equivalent |
| Operating Temperature Range | -55°C ~ 200°C | -55°C ~ 235°C | Compatible (Extended Upper Limit) |
| Number of Terminations | 2 | 2 | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| REACH Status | REACH Unaffected | REACH Unaffected | Equivalent |
| ECCN | EAR99 | EAR99 | Equivalent |
| HTSUS | 8533.21.0090 | 8533.21.0090 | Equivalent |
Engineering Selection Recommendations
Primary Component: MOS2CT52R270J remains the preferred selection when available from KOA Speer Electronics inventory. This component carries Active product status with established supply chain documentation and full RoHS3 compliance certification.
Substitute Component: RSF200JB-73-27R from YAGEO is qualified as a direct substitute when MOS2CT52R270J availability is constrained. This component meets all electrical and mechanical equivalence requirements with identical resistance, tolerance, power rating, and package configuration. The extended operating temperature range to 235°C provides additional thermal margin beyond the 200°C specification of the primary component. Both components maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment in manufacturing and end-use applications.
Interchangeability: Both components are pin-compatible and footprint-compatible for axial through-hole PCB mounting. No circuit redesign or board layout modification is required when substituting between these parts.
Frequently Asked Questions (FAQ)
Q: Can RSF200JB-73-27R be used as a direct replacement for MOS2CT52R270J in production?
A: Yes. Both components share identical electrical specifications (27 Ohms, ±5%, 2W), identical package configuration (axial through-hole), and equivalent compliance certifications (RoHS3, REACH unaffected). No design changes are required.
Q: What is the difference in physical dimensions between these components?
A: MOS2CT52R270J measures 0.157" diameter × 0.472" length (4.00mm × 12.00mm). RSF200JB-73-27R measures 0.197" diameter × 0.610" length (5.00mm × 15.50mm). Both fit standard axial component PCB hole spacing. The RSF component is slightly larger but remains compatible with typical through-hole board designs.
Q: Are there temperature performance differences between these components?
A: MOS2CT52R270J operates from -55°C to 200°C. RSF200JB-73-27R operates from -55°C to 235°C. Both meet the -55°C to 200°C requirement. The RSF component provides extended upper temperature capability without affecting performance within the standard operating range.
Q: Do both components have the same tolerance specification?
A: Yes. Both components are specified at ±5% tolerance, ensuring equivalent resistance accuracy in circuit applications.
Q: What packaging formats are available for each component?
A: MOS2CT52R270J is supplied in Cut Tape (CT) packaging. RSF200JB-73-27R is supplied in Bulk packaging. Both formats are suitable for production assembly; packaging selection depends on manufacturing process requirements and inventory management practices.
Q: Are both components RoHS3 compliant?
A: Yes. Both MOS2CT52R270J and RSF200JB-73-27R carry full RoHS3 compliance certification and REACH unaffected status, meeting regulatory requirements for electronic component manufacturing and distribution.
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