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MOS2CT52R243J Equivalent & Substitute Parts
Part Overview
The MOS2CT52R243J is a 24 kOhms ±5% 2W through-hole axial resistor manufactured by KOA Speer Electronics, Inc. This metal oxide film resistor features flame retardant coating and safety construction, designed for applications requiring reliable performance across industrial temperature ranges. The part maintains Active product status with 2771 units in current inventory stock.
Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the critical parameters that define functional interchangeability in circuit applications.
Substiute Parts
Key Parameters
| Parameter | Value | Specification Type |
|---|---|---|
| Resistance | 24 kOhms | Electrical - Critical |
| Tolerance | ±5% | Electrical - Critical |
| Power Rating | 2W | Electrical - Critical |
| Composition | Metal Oxide Film | Material - Critical |
| Package Type | Axial | Mechanical - Critical |
| Operating Temperature Range | -55°C ~ 200°C | Environmental - Critical |
| RoHS Status | ROHS3 Compliant | Compliance - Critical |
| REACH Status | REACH Unaffected | Compliance - Critical |
Substitute Part Grouping Explanation
Substitution eligibility for the MOS2CT52R243J is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Requirements:
- Resistance value: 24 kOhms (exact match required)
- Tolerance: ±5% (exact match required)
- Power rating: 2W (exact match required)
- Composition: Metal Oxide Film (exact match required)
Mechanical Compatibility Requirements:
- Package type: Axial through-hole configuration (exact match required)
- Number of terminations: 2 (exact match required)
Compliance Requirements:
- RoHS3 Compliant status (exact match required)
- REACH Unaffected status (exact match required)
- ECCN and HTSUS classifications (exact match required)
The RSF200JB-73-24K from YAGEO meets all critical electrical and mechanical parameters, enabling direct functional substitution in circuit designs. Both parts are Active status products with current manufacturing support.
Parameter Comparison
| Parameter | MOS2CT52R243J (KOA Speer) | RSF200JB-73-24K (YAGEO) | Match Status |
|---|---|---|---|
| Resistance | 24 kOhms | 24 kOhms | Equivalent |
| Tolerance | ±5% | ±5% | Equivalent |
| Power Rating | 2W | 2W | Equivalent |
| Composition | Metal Oxide Film | Metal Oxide Film | Equivalent |
| Package Type | Axial | Axial | Equivalent |
| Number of Terminations | 2 | 2 | Equivalent |
| Operating Temperature Range | -55°C ~ 200°C | -55°C ~ 235°C | Compatible (RSF200JB-73-24K exceeds minimum range) |
| 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 |
| Product Status | Active | Active | Equivalent |
Engineering Selection Recommendations
Primary Selection: MOS2CT52R243J
The MOS2CT52R243J remains the primary component choice when KOA Speer Electronics supply chain continuity is established and inventory availability meets project timelines. This part carries Active product status with 2771 units in current stock, ensuring supply reliability for production requirements.
Substitute Selection: RSF200JB-73-24K
The RSF200JB-73-24K from YAGEO serves as a direct functional equivalent when supply constraints on the primary part occur. This substitute maintains all critical electrical specifications (24 kOhms, ±5%, 2W, metal oxide film composition) and mechanical compatibility (axial through-hole, 2 terminations). Both parts satisfy identical compliance requirements (ROHS3 Compliant, REACH Unaffected, EAR99 ECCN classification).
The RSF200JB-73-24K provides extended operating temperature capability (-55°C ~ 235°C versus -55°C ~ 200°C), offering additional thermal margin in applications approaching the upper temperature limit of the primary part. Current inventory of 4560 units supports alternative sourcing strategies.
Packaging Consideration:
The MOS2CT52R243J is supplied in Cut Tape packaging, while the RSF200JB-73-24K is supplied in Bulk packaging. Component procurement processes must account for packaging format differences when transitioning between suppliers.
Frequently Asked Questions (FAQ)
Q: Can RSF200JB-73-24K replace MOS2CT52R243J in existing circuit designs?
A: Yes. The RSF200JB-73-24K meets all critical electrical parameters (24 kOhms resistance, ±5% tolerance, 2W power rating, metal oxide film composition) and mechanical requirements (axial through-hole package, 2 terminations). Both parts are ROHS3 Compliant and REACH Unaffected, satisfying identical compliance frameworks.
Q: What are the physical dimension differences between these parts?
A: The MOS2CT52R243J measures 0.157" diameter × 0.472" length (4.00mm × 12.00mm). The RSF200JB-73-24K measures 0.197" diameter × 0.610" length (5.00mm × 15.50mm). Physical layout considerations must account for these dimensional variations during PCB design or breadboard assembly.
Q: Are there temperature performance differences?
A: The RSF200JB-73-24K operates across -55°C ~ 235°C, exceeding the MOS2CT52R243J range of -55°C ~ 200°C. Both parts satisfy standard industrial temperature requirements. The extended upper temperature limit of the substitute provides additional thermal margin for applications operating near 200°C.
Q: What packaging formats are available for each part?
A: The MOS2CT52R243J is supplied in Cut Tape packaging format. The RSF200JB-73-24K is supplied in Bulk packaging format. Procurement specifications must reflect the required packaging format for automated assembly or manual component handling processes.
Q: Do both parts carry identical compliance certifications?
A: Yes. Both the MOS2CT52R243J and RSF200JB-73-24K are ROHS3 Compliant, REACH Unaffected, and classified under ECCN EAR99 with HTSUS code 8533.21.0090. Compliance documentation requirements are satisfied by either part.
Q: What is the temperature coefficient specification for the substitute part?
A: The RSF200JB-73-24K temperature coefficient specification is not provided in the available technical data. The MOS2CT52R243J specifies ±300ppm/°C. Applications requiring specific temperature coefficient performance should reference detailed manufacturer datasheets for the RSF200JB-73-24K.
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