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MOS2CT52R111J Equivalent & Substitute Parts
Part Overview
The MOS2CT52R111J is a 110 Ohms ±5% 2W through-hole axial resistor manufactured by KOA Speer Electronics, Inc. This metal oxide film resistor features flame retardant coating and safety design, suitable for applications requiring reliable power dissipation in the 2-watt range. The part is currently active in production with 804 units in stock. Equivalent and substitute parts are identified when component availability is limited, supply chain disruptions occur, or design flexibility permits alternative sourcing while maintaining electrical and mechanical compatibility.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 110 Ohms |
| Tolerance | ±5% |
| Power Rating | 2W |
| Composition | Metal Oxide Film |
| Package Type | Axial |
| Operating Temperature Range | -55°C ~ 200°C |
| Temperature Coefficient | ±300ppm/°C |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the MOS2CT52R111J is permissible when the alternative part meets the following critical parameters:
- Resistance value: 110 Ohms
- Tolerance: ±5%
- Power rating: 2W
- Composition: Metal Oxide Film
- Package configuration: Axial through-hole
- Operating temperature range: Minimum -55°C to +200°C
- RoHS3 compliance
- MSL rating: 1 (Unlimited)
The RSF200JB-73-110R from YAGEO satisfies all substitution criteria. Both parts are metal oxide film axial resistors with identical electrical specifications and regulatory compliance. Physical dimensions differ slightly, but both maintain standard axial package geometry compatible with PCB through-hole layouts.
Parameter Comparison
| Parameter | MOS2CT52R111J (KOA Speer) | RSF200JB-73-110R (YAGEO) |
|---|---|---|
| Resistance | 110 Ohms | 110 Ohms |
| Tolerance | ±5% | ±5% |
| Power Rating | 2W | 2W |
| Composition | Metal Oxide Film | Metal Oxide Film |
| Features | Flame Retardant Coating, Safety | Flame Proof, Safety |
| 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) |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Both the MOS2CT52R111J and RSF200JB-73-110R are active production components with ROHS3 compliance and unlimited moisture sensitivity ratings. The RSF200JB-73-110R provides an extended operating temperature range to 235°C compared to 200°C for the MOS2CT52R111J, offering additional thermal margin in high-temperature applications. The YAGEO part features flame-proof construction versus flame-retardant coating on the KOA Speer part. Physical dimensions of the YAGEO substitute are larger, requiring verification of PCB layout clearance in space-constrained designs. Selection between these parts should be based on thermal requirements, available board space, and supply availability.
Frequently Asked Questions (FAQ)
Q: Can RSF200JB-73-110R replace MOS2CT52R111J in all applications?
A: Yes, provided PCB layout accommodates the larger physical dimensions (5.00mm diameter vs. 4.00mm). Both parts meet identical electrical specifications and regulatory requirements.
Q: What is the significance of the extended temperature range in the YAGEO part?
A: The RSF200JB-73-110R operates to 235°C versus 200°C for the KOA Speer part. This provides additional thermal headroom but does not alter electrical performance within the standard operating range.
Q: Are there packaging differences between these parts?
A: The MOS2CT52R111J is supplied in Tape & Reel packaging, while the RSF200JB-73-110R is supplied in Bulk packaging. Both are axial through-hole components suitable for standard PCB assembly processes.
Q: Do both parts meet the same compliance standards?
A: Yes. Both the MOS2CT52R111J and RSF200JB-73-110R are ROHS3 compliant with MSL rating 1 (Unlimited moisture sensitivity).
Q: What is the primary consideration when substituting these parts?
A: Physical dimensions must be verified against PCB layout constraints. The YAGEO substitute is approximately 0.04" larger in diameter and 0.138" longer than the KOA Speer original.
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