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MOS2CT52R201J Equivalent & Substitute Parts
Part Overview
The MOS2CT52R201J is a 200 Ohm, 2W axial through-hole 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 stock becomes unavailable, when procurement lead times exceed project requirements, or when alternative suppliers offer equivalent electrical and mechanical specifications within the defined parameter tolerance.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Resistance | 200 | Ohms |
| Tolerance | ±5% | Percent |
| Power Rating | 2 | Watts |
| Composition | Metal Oxide Film | Type |
| Package Type | Axial | Configuration |
| Operating Temperature Range | -55°C to 200°C | Range |
| Temperature Coefficient | ±300 | ppm/°C |
| RoHS Status | ROHS3 Compliant | Certification |
| REACH Status | REACH Unaffected | Certification |
Substitute Part Grouping Explanation
Substitution of the MOS2CT52R201J is permissible with parts meeting the following criteria:
Electrical Parameters (Mandatory Match):
- Resistance value: 200 Ohms
- Tolerance: ±5%
- Power rating: 2W minimum
- Composition: Metal Oxide Film
Mechanical Parameters (Mandatory Match):
- Package configuration: Axial through-hole
- Number of terminations: 2
Environmental & Compliance Parameters (Mandatory Match):
- RoHS3 Compliant status
- REACH Unaffected status
- Operating temperature range: Minimum -55°C to 200°C (substitute may exceed upper limit)
Acceptable Variations:
- Physical dimensions may vary within standard axial resistor tolerances
- Packaging format (Cut Tape vs. Bulk) does not affect electrical substitution
- Temperature coefficient values may differ if not specified as critical parameter
- Flame retardant vs. flame proof designation represents equivalent safety feature classification
Parameter Comparison
| Parameter | MOS2CT52R201J (KOA Speer) | RSF200JB-73-200R (YAGEO) | Match Status |
|---|---|---|---|
| Resistance | 200 Ohms | 200 Ohms | Match |
| Tolerance | ±5% | ±5% | Match |
| Power Rating | 2W | 2W | Match |
| Composition | Metal Oxide Film | Metal Oxide Film | Match |
| Package Type | Axial | Axial | Match |
| Number of Terminations | 2 | 2 | Match |
| Operating Temperature Range | -55°C to 200°C | -55°C to 235°C | Substitute Exceeds |
| Temperature Coefficient | ±300 ppm/°C | Not Specified | Data Unavailable |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Match |
| REACH Status | REACH Unaffected | REACH Unaffected | Match |
| 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) | Substitute Larger |
| Packaging Format | Cut Tape (CT) | Bulk | Different Format |
Engineering Selection Recommendations
The RSF200JB-73-200R manufactured by YAGEO qualifies as a direct electrical substitute for the MOS2CT52R201J. Both components satisfy the mandatory electrical specifications: 200 Ohm resistance, ±5% tolerance, 2W power rating, and metal oxide film composition. Both components maintain identical axial through-hole package configuration with two terminations.
Compliance certifications align across both parts: RoHS3 Compliant and REACH Unaffected designations are present on both the main part and substitute. Product status is Active for both manufacturers, ensuring continued availability and manufacturing support.
The substitute part demonstrates an extended operating temperature range (-55°C to 235°C) compared to the main part (-55°C to 200°C), providing additional thermal margin in applications approaching the upper temperature limit. Physical dimensions of the substitute are larger (5.00mm diameter x 15.50mm length versus 4.00mm diameter x 12.00mm length), which requires verification of available board space and component placement constraints in the target application.
Packaging format differs between the two parts: the main part is supplied in Cut Tape format while the substitute is supplied in Bulk format. This distinction affects procurement and assembly processes but does not impact electrical performance or substitution validity.
Frequently Asked Questions (FAQ)
Q: Can the RSF200JB-73-200R replace the MOS2CT52R201J in all applications?
A: The RSF200JB-73-200R is electrically equivalent to the MOS2CT52R201J across all specified electrical parameters. Physical dimension differences require verification that the larger substitute component (5.00mm x 15.50mm) fits within available board space. No other technical barriers to substitution exist.
Q: What is the significance of the different physical dimensions?
A: The substitute part is physically larger in both diameter and length. This difference may affect component placement on printed circuit boards, particularly in space-constrained designs. Mechanical fit verification is necessary before substitution in existing board layouts.
Q: Does the extended operating temperature range of the substitute part affect substitution suitability?
A: The extended operating temperature range (-55°C to 235°C on the substitute versus -55°C to 200°C on the main part) represents an advantage. The substitute maintains performance across a wider temperature envelope and does not restrict applications within the original part's temperature specification.
Q: Are there differences in safety features between flame retardant and flame proof designations?
A: Both designations represent equivalent safety feature classifications for metal oxide film resistors. Flame retardant coating on the main part and flame proof design on the substitute both provide safety characteristics appropriate for the component category.
Q: Does packaging format (Cut Tape vs. Bulk) affect electrical performance?
A: Packaging format does not affect electrical performance or component specifications. Cut Tape and Bulk formats represent different supply and handling methods suitable for different assembly processes. Electrical substitution is valid regardless of packaging format.
Q: What compliance certifications must be verified for substitution?
A: Both the main part and substitute must maintain RoHS3 Compliant and REACH Unaffected designations. The RSF200JB-73-200R satisfies both requirements, confirming compliance equivalence with the MOS2CT52R201J.
Q: Is temperature coefficient specification critical for substitution decisions?
A: Temperature coefficient was specified for the main part (±300 ppm/°C) but not provided for the substitute. This parameter difference does not prevent substitution when the substitute's operating temperature range exceeds the main part's specification. Applications with strict temperature coefficient requirements should obtain this specification from the substitute manufacturer.
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