ROX2SJ1R2 Equivalent & Substitute Parts

Part Overview

The ROX2SJ1R2 is a 1.2 Ohms ±5% 2W through-hole resistor manufactured by TE Connectivity Passive Product. This axial metal oxide film resistor features flame-proof and pulse-withstanding characteristics, designed for applications requiring safety-rated components. The part is currently active in production with 888 pieces available in cut tape packaging.

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 equivalent performance while potentially offering different packaging formats, temperature ranges, or inventory availability.

Substiute Parts

ROX2SJ1R2

TE Connectivity Passive ProductIn Stock: 985ROX2SJ1R2 Datasheet

Current PartRFQ

RSF200JB-73-1R2

YAGEOIn Stock: 5402RSF200JB-73-1R2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROX2SJ1R2 is determined by strict equivalence across the following parameters:

Mandatory Matching Parameters:

• Resistance value: 1.2 Ohms
• Tolerance: ±5%
• Power rating: 2W
• Composition: Metal Oxide Film
• Package configuration: Axial through-hole

Compatible Variations:

• Physical dimensions may vary within axial package constraints
• Operating temperature range may extend beyond the original specification
• Packaging format (cut tape, bulk, reel) does not affect electrical equivalence
• RoHS compliance status must be maintained at ROHS3 level or equivalent

The RSF200JB-73-1R2 manufactured by YAGEO meets all mandatory matching parameters and qualifies as a direct electrical equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Part: ROX2SJ1R2

The ROX2SJ1R2 remains the specified component with active production status and immediate availability. This part carries TE Connectivity's Neohm series designation and includes pulse-withstanding certification alongside flame-proof characteristics.

Substitute Part: RSF200JB-73-1R2

The RSF200JB-73-1R2 from YAGEO provides electrical equivalence with identical resistance, tolerance, power rating, and composition specifications. This substitute maintains ROHS3 compliance and EAR99 classification. The extended operating temperature range to 235°C provides additional thermal margin for applications operating near the upper temperature limit of the original specification. Physical length increases from 12.00mm to 15.50mm; board layout verification is required to confirm mechanical fit within the application.

Both parts are active products with established supply chains. Selection between them depends on packaging requirements, physical space constraints, and inventory availability.

Frequently Asked Questions (FAQ)

Q: Can RSF200JB-73-1R2 be used as a direct replacement for ROX2SJ1R2?

A: Yes, the RSF200JB-73-1R2 is electrically equivalent. Both parts share identical resistance (1.2 Ohms), tolerance (±5%), power rating (2W), composition (metal oxide film), and axial package configuration. Physical dimensions differ; the substitute is 3.50mm longer. Verify available board space before substitution.

Q: What are the key electrical parameters that must match for substitution?

A: Substitution requires matching of resistance value, tolerance, power rating, and composition. The ROX2SJ1R2 and RSF200JB-73-1R2 both specify 1.2 Ohms ±5% 2W metal oxide film construction, establishing electrical equivalence.

Q: Does the operating temperature range difference affect substitution eligibility?

A: No. The RSF200JB-73-1R2 extends the operating range to 235°C, which encompasses the original specification of -55°C to 200°C. Extended temperature capability does not compromise compatibility; it provides additional design margin.

Q: Are there packaging format differences between these parts?

A: Yes. The ROX2SJ1R2 is supplied in cut tape (CT) packaging, while the RSF200JB-73-1R2 is supplied in bulk packaging. Both are axial through-hole components suitable for identical circuit board assembly processes. Packaging format does not affect electrical performance.

Q: What compliance certifications apply to both parts?

A: Both the ROX2SJ1R2 and RSF200JB-73-1R2 are ROHS3 compliant and classified as EAR99 for export control purposes. Both share the same HTSUS tariff code (8533.21.0090).

Q: How do the physical dimensions compare?

A: Both parts maintain a 5.00mm diameter. The ROX2SJ1R2 measures 12.00mm in length, while the RSF200JB-73-1R2 measures 15.50mm. The 3.50mm length difference requires verification of available board space in the application circuit.