ROX2SF220R Equivalent & Substitute Parts

Part Overview

The ROX2SF220R is a 220 Ohm, ±1% tolerance, 2W axial through-hole resistor manufactured by TE Connectivity Passive Product. This component features metal oxide film composition with flame-proof and pulse-withstanding characteristics, designed for applications requiring safety-rated resistors in harsh environments. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing procurement and design requirements.

Substiute Parts

ROX2SF220R

TE Connectivity Passive ProductIn Stock: 999ROX2SF220R Datasheet

Current PartRFQ

FMP200FRF52-220R

YAGEOIn Stock: 2433FMP200FRF52-220R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROX2SF220R is determined by the following critical parameters that must remain constant or compatible:

• Resistance Value: 220 Ohms (exact match required)
• Tolerance: ±1% (precision specification)
• Power Rating: 2W (thermal dissipation requirement)
• Package Configuration: Axial through-hole (mechanical and electrical interface)
• Safety Features: Flame-proof and safety-rated construction
• Operating Temperature Range: Minimum -55°C ~ 155°C (substitute must support the application environment)

The FMP200FRF52-220R from YAGEO meets these substitution criteria. While the substitute employs metal film composition instead of metal oxide film, it maintains identical electrical specifications (220 Ohms, ±1%, 2W), axial package configuration, and safety certifications. The substitute's operating temperature range of -55°C ~ 155°C is compatible with applications not exceeding 155°C. The temperature coefficient difference (±100ppm/°C versus ±350ppm/°C) represents improved stability in the substitute part.

Parameter Comparison

Engineering Selection Recommendations

The FMP200FRF52-220R is the qualified substitute for the obsolete ROX2SF220R based on the following engineering criteria:

Electrical Equivalence: Both parts deliver identical resistance (220 Ohms), tolerance (±1%), and power dissipation (2W) specifications, ensuring functional interchangeability in circuit applications.

Package Compatibility: Both components utilize axial through-hole configuration, permitting direct mechanical and electrical substitution on printed circuit boards without layout modifications.

Safety and Compliance: The FMP200FRF52-220R maintains flame-proof and safety-rated construction consistent with the original part. The substitute achieves ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements for new designs and procurement.

Temperature Consideration: The substitute's maximum operating temperature of 155°C is suitable for applications within this thermal envelope. Designs requiring operation above 155°C must retain the original ROX2SF220R specification or identify alternative solutions.

Performance Enhancement: The FMP200FRF52-220R exhibits superior temperature coefficient stability (±100ppm/°C) compared to the original part (±350ppm/°C), providing improved precision in temperature-sensitive applications.

Availability: The substitute is actively manufactured with confirmed inventory availability, eliminating procurement risk associated with the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can the FMP200FRF52-220R directly replace the ROX2SF220R in all applications?

A: Direct substitution is valid for applications operating at temperatures not exceeding 155°C. Applications requiring operation above 155°C must evaluate alternative solutions, as the substitute's maximum operating temperature is 155°C compared to the original part's 200°C rating.

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

A: Both compositions deliver equivalent electrical performance for this application. Metal oxide film (original part) exhibits higher temperature coefficient (±350ppm/°C), while metal film (substitute) provides superior stability (±100ppm/°C). The substitute's metal film construction is suitable for precision applications requiring tighter temperature-dependent tolerance maintenance.

Q: Does the substitute meet safety and regulatory requirements?

A: Yes. The FMP200FRF52-220R maintains flame-proof and safety-rated construction equivalent to the original part. The substitute achieves ROHS3 compliance and REACH unaffected status, satisfying current environmental and safety regulations for new designs.

Q: Are there physical dimension differences between the parts?

A: Yes. The ROX2SF220R measures 0.197" Dia x 0.472" L (5.00mm x 12.00mm), while the FMP200FRF52-220R measures 0.154" Dia x 0.354" L (3.90mm x 9.00mm). The substitute is physically smaller, which may affect board layout in space-constrained designs but does not impact electrical performance.

Q: What does the "pulse withstanding" feature on the original part indicate?

A: Pulse withstanding capability indicates the original part is rated to survive transient overvoltage events. The substitute does not carry this specification. Applications requiring pulse withstanding protection must evaluate whether the substitute's standard 2W rating provides adequate margin for the intended pulse environment.

Q: Is the substitute available in the same packaging format?

A: Both parts utilize axial through-hole package configuration. The substitute is supplied in Cut Tape (CT) packaging, while the original part packaging format is not specified in available data. Both formats are compatible with standard through-hole assembly processes.