MOS2CT52R821J Equivalent & Substitute Parts

Part Overview

The MOS2CT52R821J is a 2W axial through-hole resistor manufactured by KOA Speer Electronics, Inc., rated at 820 Ohms with ±5% tolerance. This metal oxide film resistor features flame retardant coating and safety certification, designed for applications requiring robust thermal performance across the -55°C to 200°C operating range. The part maintains Active product status with 2739 units in current inventory stock.

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same resistance value, tolerance, power rating, and package type. Alternative sources provide continuity for procurement, inventory management, and supply chain resilience.

Substiute Parts

MOS2CT52R821J

KOA Speer Electronics, Inc.In Stock: 2829MOS2CT52R821J Datasheet

Current PartRFQ

RSF200JB-73-820R

YAGEOIn Stock: 3974RSF200JB-73-820R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MOS2CT52R821J is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 820 Ohms (exact match)
• Tolerance: ±5% (exact match)
• Power rating: 2W (exact match)
• Composition: Metal Oxide Film (exact match)

Mechanical Compatibility Requirements:

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

Regulatory & Compliance Requirements:

• RoHS3 Compliance (mandatory)
• REACH Unaffected status (mandatory)
• Active product status (required for current procurement)

The RSF200JB-73-820R from YAGEO meets all electrical and mechanical equivalence criteria, maintaining identical resistance, tolerance, power rating, and axial package configuration. Both parts satisfy RoHS3 and REACH compliance requirements and maintain Active product status.

Parameter Comparison

Engineering Selection Recommendations

Both the MOS2CT52R821J and RSF200JB-73-820R are qualified substitutes based on electrical and mechanical equivalence. Selection between these parts is determined by application-specific requirements and supply chain considerations:

MOS2CT52R821J Selection Criteria:

• Primary choice when KOA Speer Electronics sourcing is specified
• Cut Tape packaging suitable for automated assembly processes
• Operating temperature range of -55°C to 200°C adequate for standard industrial applications
• Temperature coefficient of ±300ppm/°C specified for precision applications

RSF200JB-73-820R Selection Criteria:

• Alternative source when YAGEO supply chain is preferred
• Bulk packaging format suitable for high-volume manual assembly or reel-based processes
• Extended operating temperature range of -55°C to 235°C for elevated temperature applications
• Both parts maintain identical electrical performance and regulatory compliance

Both parts satisfy ROHS3 and REACH compliance requirements and maintain Active product status for current procurement cycles.

Frequently Asked Questions (FAQ)

Q: Can RSF200JB-73-820R replace MOS2CT52R821J in existing designs?

A: Yes. Both parts are electrically equivalent with identical 820 Ohm resistance, ±5% tolerance, and 2W power rating. Both utilize metal oxide film composition in axial package configuration with two terminations. Mechanical compatibility is confirmed for through-hole PCB mounting applications.

Q: What is the difference in physical dimensions between these parts?

A: MOS2CT52R821J dimensions are 0.157" Dia x 0.472" L (4.00mm x 12.00mm). RSF200JB-73-820R dimensions are 0.197" Dia x 0.610" L (5.00mm x 15.50mm). The YAGEO part is larger in both diameter and length. PCB layout and clearance verification is required when substituting between these parts.

Q: Are there temperature performance differences?

A: MOS2CT52R821J operates across -55°C to 200°C. RSF200JB-73-820R operates across -55°C to 235°C. The YAGEO part provides extended high-temperature capability. For applications operating below 200°C, both parts perform identically. Applications requiring operation above 200°C require the RSF200JB-73-820R.

Q: What packaging differences exist between these parts?

A: MOS2CT52R821J is supplied in Cut Tape (CT) format, suitable for automated pick-and-place assembly. RSF200JB-73-820R is supplied in Bulk format, suitable for manual assembly or reel-based processes. Packaging selection depends on manufacturing process requirements.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both MOS2CT52R821J and RSF200JB-73-820R are ROHS3 Compliant and REACH Unaffected. Both maintain Active product status for current procurement.

Q: Is temperature coefficient a substitution factor?

A: MOS2CT52R821J specifies ±300ppm/°C temperature coefficient. RSF200JB-73-820R does not provide temperature coefficient data in available specifications. For applications requiring precise temperature coefficient performance, MOS2CT52R821J is the specified choice.