ROX2SJ18R Equivalent & Substitute Parts

Part Overview

The ROX2SJ18R is an 18 Ohms ±5% 2W through-hole axial resistor manufactured by TE Connectivity Passive Product. This metal oxide film resistor features flame-proof and pulse-withstanding characteristics, designed for applications requiring robust thermal and electrical performance across industrial temperature ranges. The part maintains Active product status with 1568 units in current inventory stock.

Substitute parts are identified when equivalent electrical specifications, mechanical form factors, and compliance certifications align with the original component, enabling direct replacement in circuit designs without functional degradation.

Substiute Parts

ROX2SJ18R

TE Connectivity Passive ProductIn Stock: 1657ROX2SJ18R Datasheet

Current PartRFQ

RSF200JB-73-18R

YAGEOIn Stock: 3032RSF200JB-73-18R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROX2SJ18R is determined by the following critical parameters:

Electrical Equivalence: Resistance value of 18 Ohms with ±5% tolerance and 2W power rating must be maintained. Metal oxide film composition ensures consistent thermal and electrical behavior.

Mechanical Compatibility: Axial package configuration with two terminations enables direct board-level replacement without layout modifications.

Environmental Compliance: ROHS3 compliance and REACH unaffected status are mandatory for regulatory alignment in target applications.

Thermal Performance: Operating temperature range and temperature coefficient specifications must support the intended application environment.

The RSF200JB-73-18R from YAGEO meets all substitution criteria through matching electrical specifications, identical axial form factor, and equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the ROX2SJ18R and RSF200JB-73-18R are Active status components with ROHS3 compliance and REACH unaffected certification, qualifying them for equivalent circuit applications.

The RSF200JB-73-18R provides an extended operating temperature range to 235°C compared to the ROX2SJ18R maximum of 200°C, offering thermal margin in high-temperature environments. The YAGEO substitute maintains identical electrical specifications and axial package configuration.

Physical length differs between parts: the ROX2SJ18R measures 0.472" while the RSF200JB-73-18R measures 0.610". This dimensional variance requires verification of available board space and component clearance in confined layouts.

Selection between these parts depends on thermal requirements and available physical space. Both components satisfy core electrical and compliance requirements for direct substitution.

Frequently Asked Questions (FAQ)

Q: Can the RSF200JB-73-18R replace the ROX2SJ18R in all applications?

A: The RSF200JB-73-18R matches all critical electrical parameters and compliance certifications. Physical length differs by 0.138 inches, requiring confirmation that board layout accommodates the longer component body.

Q: What are the key differences between these parts?

A: Electrical specifications are identical. The RSF200JB-73-18R operates to 235°C versus 200°C for the ROX2SJ18R. The YAGEO part is 0.138 inches longer. Both use metal oxide film composition and maintain ±5% tolerance at 2W power rating.

Q: Are both parts RoHS compliant?

A: Yes. Both the ROX2SJ18R and RSF200JB-73-18R are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Q: Does the temperature coefficient differ between these resistors?

A: The ROX2SJ18R specifies ±350ppm/°C temperature coefficient. The RSF200JB-73-18R temperature coefficient is not provided in available documentation. Both parts operate within the specified temperature ranges.

Q: What packaging formats are available?

A: The ROX2SJ18R is supplied in Cut Tape packaging. The RSF200JB-73-18R is supplied in Bulk packaging. Both use identical axial form factor suitable for through-hole assembly.

Q: Are there inventory considerations for these parts?

A: The ROX2SJ18R has 1568 units in stock. The RSF200JB-73-18R has 2958 units available, providing higher inventory availability for the YAGEO substitute.