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MOS2CT52R101J Equivalent & Substitute Parts
Part Overview
The MOS2CT52R101J is a 100 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 inventory constraints, lead time requirements, or procurement preferences necessitate alternative sourcing while maintaining equivalent electrical and mechanical performance.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Resistance | 100 Ohms |
| Tolerance | ±5% |
| Power Rating | 2W |
| Composition | Metal Oxide Film |
| Package Type | Axial |
| Operating Temperature Range | -55°C ~ 200°C |
| Temperature Coefficient | ±300ppm/°C |
| Number of Terminations | 2 |
| RoHS Status | ROHS3 Compliant |
| REACH Status | REACH Unaffected |
Substitute Part Grouping Explanation
Substitution eligibility for the MOS2CT52R101J is determined by strict equivalence across the following critical parameters:
Electrical Equivalence Requirements:
- Resistance value: 100 Ohms
- Tolerance: ±5%
- Power rating: 2W
- Composition: Metal Oxide Film
Mechanical Equivalence Requirements:
- Package configuration: Axial through-hole
- Number of terminations: 2
- Physical form factor: Axial lead configuration
Compliance Requirements:
- RoHS3 Compliant status
- REACH Unaffected designation
- ECCN classification: EAR99
The substitute part RSF200JB-73-100R meets all electrical and mechanical equivalence criteria. Both components share identical resistance, tolerance, power rating, and composition specifications. Both are configured as axial through-hole resistors with two terminations and maintain full regulatory compliance.
Parameter Comparison
| Parameter | MOS2CT52R101J (KOA Speer) | RSF200JB-73-100R (YAGEO) | Equivalence Status |
|---|---|---|---|
| Resistance | 100 Ohms | 100 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 (Substitute has extended range) |
| Number of Terminations | 2 | 2 | Equivalent |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | Equivalent |
| REACH Status | REACH Unaffected | REACH Unaffected | Equivalent |
| 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) | Different physical dimensions |
Engineering Selection Recommendations
MOS2CT52R101J Selection Criteria:
- Primary choice when KOA Speer Electronics sourcing is specified or preferred
- Smaller physical footprint (4.00mm diameter x 12.00mm length)
- Defined temperature coefficient specification (±300ppm/°C)
- Cut Tape packaging format
RSF200JB-73-100R Selection Criteria:
- Substitute selection when YAGEO sourcing is available or preferred
- Extended operating temperature range (-55°C ~ 235°C) provides additional thermal margin
- Larger physical dimensions (5.00mm diameter x 15.50mm length) require PCB layout verification
- Bulk packaging format
- Higher inventory availability (5901 Pcs vs 849 Pcs)
Both components maintain Active product status and full regulatory compliance (RoHS3 Compliant, REACH Unaffected, EAR99 classification). Selection between these parts is based on procurement availability, physical space constraints on the PCB, and manufacturer preference rather than electrical performance differences.
Frequently Asked Questions (FAQ)
Q: Can RSF200JB-73-100R directly replace MOS2CT52R101J in all applications?
A: Electrical and functional replacement is direct. Physical dimensions differ: RSF200JB-73-100R is larger (5.00mm diameter x 15.50mm length versus 4.00mm diameter x 12.00mm length). PCB layout verification is required to confirm adequate spacing for the larger substitute component.
Q: What are the key electrical parameters that must match for substitution?
A: Resistance value (100 Ohms), tolerance (±5%), power rating (2W), and composition (Metal Oxide Film) must be identical. Both parts meet these requirements.
Q: Are there compliance differences between these parts?
A: Both components are RoHS3 Compliant and REACH Unaffected. No compliance disadvantage exists with either selection.
Q: Does the extended temperature range of RSF200JB-73-100R provide any advantage?
A: RSF200JB-73-100R operates to 235°C versus 200°C for MOS2CT52R101J. This extended range provides additional thermal margin in high-temperature applications but does not affect standard operating conditions.
Q: What packaging format differences exist?
A: MOS2CT52R101J is supplied in Cut Tape packaging. RSF200JB-73-100R is supplied in Bulk packaging. Packaging format affects handling and assembly processes but not component performance.
Q: Is temperature coefficient specification critical for substitution?
A: MOS2CT52R101J specifies ±300ppm/°C temperature coefficient. RSF200JB-73-100R does not provide this specification in the available data. For applications requiring defined temperature coefficient performance, MOS2CT52R101J is the specified choice.
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