ROX2SF2R2 Equivalent & Substitute Parts

Part Overview

The ROX2SF2R2 is a 2.2 Ohm, ±1% tolerance, 2W through-hole axial resistor manufactured by TE Connectivity Passive Product. This component features metal oxide film construction with flame-proof and pulse-withstanding characteristics, designed for applications requiring robust thermal and electrical performance across an operating temperature range of -55°C to 200°C.

The ROX2SF2R2 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications currently utilizing this component.

Substiute Parts

ROX2SF2R2

TE Connectivity Passive ProductIn Stock: 774ROX2SF2R2 Datasheet

Current PartRFQ

FMP200FRF52-2R2

YAGEOIn Stock: 1007FMP200FRF52-2R2 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROX2SF2R2 is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 2.2 Ohms
• Tolerance: ±1%
• Power rating: 2W

Mechanical Parameters:

• Package configuration: Axial through-hole
• Number of terminations: 2
• Physical form factor: Axial lead configuration

Functional Requirements:

• Flame-proof construction
• Safety-rated design
• Suitable for pulse-withstanding applications

The substitute part FMP200FRF52-2R2 meets all critical electrical and mechanical parameters. Variations in composition (metal film versus metal oxide film), temperature coefficient, and maximum operating temperature represent acceptable trade-offs within the scope of component substitution, provided the application does not mandate the specific thermal or stability characteristics of the original metal oxide film construction.

Parameter Comparison

Engineering Selection Recommendations

FMP200FRF52-2R2 as Primary Substitute:

The FMP200FRF52-2R2 is the direct equivalent for the obsolete ROX2SF2R2. This YAGEO component maintains electrical equivalence across all critical parameters: 2.2 Ohm resistance, ±1% tolerance, and 2W power rating in an axial through-hole package.

Compliance and Availability:

The FMP200FRF52-2R2 carries active product status with ROHS3 compliance and REACH unaffected designation, ensuring regulatory alignment with current manufacturing standards. Current inventory of 990 pieces supports immediate procurement requirements.

Design Considerations:

Applications operating at temperatures exceeding 155°C require evaluation of the reduced maximum operating temperature of the FMP200FRF52-2R2 compared to the original ROX2SF2R2 specification of 200°C. The FMP200FRF52-2R2 exhibits superior temperature stability (±100ppm/°C versus ±350ppm/°C), which may provide performance benefits in precision applications despite the narrower temperature range.

The FMP200FRF52-2R2 is physically smaller (3.90mm x 9.00mm versus 5.00mm x 12.00mm), which may require PCB layout verification for existing designs.

Frequently Asked Questions (FAQ)

Q: Can the FMP200FRF52-2R2 directly replace the ROX2SF2R2 in all applications?

A: The FMP200FRF52-2R2 provides electrical and mechanical equivalence for the ROX2SF2R2 across resistance, tolerance, power rating, and package type. Applications operating continuously above 155°C require thermal analysis to confirm suitability. PCB layout verification is necessary due to the smaller physical dimensions of the substitute part.

Q: What is the difference between metal oxide film and metal film composition?

A: Metal oxide film resistors, as used in the ROX2SF2R2, provide higher temperature stability and pulse-withstanding capability. Metal film resistors, as used in the FMP200FRF52-2R2, offer superior temperature coefficient stability and lower noise characteristics. Both compositions meet the flame-proof and safety requirements specified for this application category.

Q: Are there packaging differences between these parts?

A: The ROX2SF2R2 is supplied in standard packaging, while the FMP200FRF52-2R2 is supplied in Tape & Reel (TR) format. Both maintain the axial through-hole configuration. Tape & Reel packaging is standard for active production components and does not affect electrical or mechanical performance.

Q: Does the smaller size of the FMP200FRF52-2R2 affect circuit performance?

A: Physical size reduction does not affect electrical performance. PCB layout and mechanical mounting must accommodate the smaller dimensions (3.90mm x 9.00mm versus 5.00mm x 12.00mm). Existing PCB designs may require layout modification to accommodate the substitute component.

Q: What compliance certifications apply to the FMP200FRF52-2R2?

A: The FMP200FRF52-2R2 is ROHS3 compliant and REACH unaffected. Both the original and substitute parts carry EAR99 ECCN classification and 8533.21.0090 HTSUS code.