ROX1SF10K Equivalent & Substitute Parts

Part Overview

The ROX1SF10K is a 10 kOhms ±1% 1W 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 precision resistance values and high reliability. The part is classified as obsolete, necessitating identification of equivalent substitute components that maintain functional compatibility while offering active product status and continued availability.

Substiute Parts

ROX1SF10K

TE Connectivity Passive ProductIn Stock: 1094ROX1SF10K Datasheet

Current PartRFQ

ROX1SJ10K

TE Connectivity Passive ProductIn Stock: 17193ROX1SJ10K Datasheet

SimilarRFQ

FMF1WSFRF52-10K

YAGEOIn Stock: 951FMF1WSFRF52-10K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ROX1SF10K is determined by the following critical parameters:

Primary Compatibility Criteria:

• Resistance value: 10 kOhms (exact match required)
• Power rating: 1W (exact match required)
• Package type: Axial (exact match required)
• Number of terminations: 2 (exact match required)

Secondary Compatibility Criteria:

• Operating temperature range: Minimum -55°C to 130°C coverage
• Composition: Metal oxide film or metal film acceptable
• Features: Flame proof and safety characteristics required

Tolerance Consideration: Tolerance variations (±1% versus ±5%) are permitted substitutions when circuit design specifications allow relaxed tolerance acceptance. The ±1% tolerance of the original part represents a tighter specification; substitutes with ±5% tolerance represent a functional relaxation suitable for non-critical applications.

Parameter Comparison

Engineering Selection Recommendations

ROX1SJ10K (TE Connectivity Passive Product): This substitute maintains identical physical dimensions, operating temperature range, and composition to the original ROX1SF10K. The primary difference is tolerance relaxation from ±1% to ±5%. This component is active and ROHS3 compliant. Selection of ROX1SJ10K is appropriate for applications where ±5% tolerance meets circuit requirements and where pulse-withstanding capability is necessary. Inventory availability is significantly higher (17,095 pcs) compared to the original part.

FMF1WSFRF52-10K (YAGEO): This substitute provides ±1% tolerance matching the original specification and offers superior temperature coefficient performance (±100ppm/°C versus ±350ppm/°C). The component is active and ROHS3 compliant with extended operating temperature range (-55°C ~ 155°C). Physical dimensions are slightly smaller (0.130" Dia x 0.354" L versus 0.138" Dia x 0.394" L). The FMF1WSFRF52-10K does not include pulse-withstanding capability. Selection is appropriate for precision applications where tighter temperature stability is required and pulse-withstanding is not a functional requirement. Inventory availability is moderate (841 pcs).

Frequently Asked Questions (FAQ)

Q: Can ROX1SJ10K replace ROX1SF10K in all applications?

A: ROX1SJ10K is functionally equivalent for applications where ±5% tolerance is acceptable. Both components share identical physical dimensions, power rating, operating temperature range, and pulse-withstanding capability. The tolerance difference must be evaluated against circuit design specifications.

Q: What is the primary difference between ROX1SJ10K and FMF1WSFRF52-10K?

A: ROX1SJ10K maintains ±5% tolerance with metal oxide film composition and pulse-withstanding features. FMF1WSFRF52-10K provides ±1% tolerance with metal film composition and superior temperature coefficient (±100ppm/°C), but lacks pulse-withstanding capability. Physical dimensions differ slightly between the two components.

Q: Are the substitute parts physically interchangeable with ROX1SF10K?

A: ROX1SJ10K is physically identical to ROX1SF10K (0.138" Dia x 0.394" L). FMF1WSFRF52-10K has slightly smaller dimensions (0.130" Dia x 0.354" L) and may require board layout verification for through-hole mounting applications with tight spacing constraints.

Q: Do the substitute parts meet RoHS compliance requirements?

A: Both ROX1SJ10K and FMF1WSFRF52-10K are ROHS3 compliant. The original ROX1SF10K does not specify RoHS status.

Q: Which substitute should be selected for precision analog circuits?

A: FMF1WSFRF52-10K is suitable for precision applications requiring ±1% tolerance and superior temperature stability (±100ppm/°C). Applications requiring pulse-withstanding capability should use ROX1SJ10K instead.

Q: What is the availability status of each substitute?

A: ROX1SJ10K has the highest inventory availability (17,095 pcs). FMF1WSFRF52-10K has moderate availability (841 pcs). The original ROX1SF10K is obsolete with limited remaining stock (1,022 pcs).