MOS2CT52A221J Equivalent & Substitute Parts

Part Overview

The MOS2CT52A221J is a 220 Ohms ±5% 2W through-hole resistor manufactured by KOA Speer Electronics, Inc. This axial metal oxide film resistor features flame retardant coating and safety construction, designed for applications requiring reliable fixed resistance in the 2-watt power range. The part is currently in active production status with 762 pieces available in new original stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component selection from qualified manufacturers.

Substiute Parts

MOS2CT52A221J

KOA Speer Electronics, Inc.In Stock: 778MOS2CT52A221J Datasheet

Current PartRFQ

RSF200JB-73-220R

YAGEOIn Stock: 18630RSF200JB-73-220R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MOS2CT52A221J is based on electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Electrical Parameters:

• Resistance value: 220 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 2W (exact match required)
• Composition: Metal Oxide Film (exact match required)

Mechanical Parameters:

• Package configuration: Axial through-hole (exact match required)
• Number of terminations: 2 (exact match required)

Compliance Parameters:

• RoHS3 Compliance (required for substitution)
• REACH Unaffected status (required for substitution)

The substitute part RSF200JB-73-220R from YAGEO meets all electrical and mechanical equivalence criteria, with identical resistance, tolerance, power rating, composition, and package type. Both parts are RoHS3 compliant and REACH unaffected, confirming regulatory compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the MOS2CT52A221J and RSF200JB-73-220R are active production parts with full RoHS3 compliance and REACH unaffected status, confirming suitability for regulated applications. The electrical specifications are identical across resistance, tolerance, power rating, and composition. The axial through-hole package configuration is equivalent between both parts.

The RSF200JB-73-220R operates across a wider temperature range (-55°C to 235°C versus -55°C to 200°C), providing extended thermal capability. The MOS2CT52A221J specifies a temperature coefficient of ±300ppm/°C, while the RSF200JB-73-220R does not provide this specification in the available data.

Selection between these parts should be based on application-specific requirements including operating temperature envelope, packaging format preference (cut tape versus bulk), and inventory availability. Both parts satisfy the core electrical and mechanical requirements for direct substitution in 220 Ohm 2W axial resistor applications.

Frequently Asked Questions (FAQ)

Q: Can the RSF200JB-73-220R replace the MOS2CT52A221J in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance (220 Ohms), tolerance (±5%), power rating (2W), composition (metal oxide film), and axial package configuration. Both are RoHS3 compliant and REACH unaffected.

Q: What are the physical dimension differences between these parts?

A: The MOS2CT52A221J measures 0.157" diameter × 0.472" length (4.00mm × 12.00mm). The RSF200JB-73-220R measures 0.197" diameter × 0.610" length (5.00mm × 15.50mm). The substitute part is larger in both diameter and length. PCB layout and mechanical clearance must accommodate these dimensional differences.

Q: Are there temperature performance differences?

A: The RSF200JB-73-220R operates to 235°C maximum, compared to 200°C for the MOS2CT52A221J. The MOS2CT52A221J specifies a temperature coefficient of ±300ppm/°C. Applications requiring operation above 200°C should use the RSF200JB-73-220R. Applications with strict temperature coefficient requirements should reference the MOS2CT52A221J specification.

Q: What packaging formats are available?

A: The MOS2CT52A221J is supplied in cut tape (CT) format. The RSF200JB-73-220R is supplied in bulk format. Packaging selection depends on assembly process requirements and order quantity.

Q: Are both parts compliant with regulatory requirements?

A: Yes. Both the MOS2CT52A221J and RSF200JB-73-220R are RoHS3 compliant and REACH unaffected, confirming compatibility with regulated markets and applications.

Q: Which part should be selected for new designs?

A: Selection depends on specific application requirements. The RSF200JB-73-220R offers higher temperature capability and greater stock availability. The MOS2CT52A221J provides specified temperature coefficient performance. Both parts are functionally equivalent for standard 220 Ohm 2W axial resistor applications.