RSF200JB-73-39R Equivalent & Substitute Parts

Part Overview

The RSF200JB-73-39R is a 39 Ohms ±5% 2W through-hole resistor manufactured by YAGEO in the RSF series. This axial metal oxide film resistor features flame-proof and safety characteristics, designed for applications requiring robust thermal performance across a wide operating temperature range of -55°C to 235°C. The part is currently active in production with 713 pieces available in bulk packaging. Substitute parts are identified when equivalent electrical specifications, mechanical compatibility, and regulatory compliance can be maintained across alternative manufacturers.

Substiute Parts

RSF200JB-73-39R

YAGEOIn Stock: 810RSF200JB-73-39R Datasheet

Current PartRFQ

ROX2SJ39R

TE Connectivity Passive ProductIn Stock: 3746ROX2SJ39R Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RSF200JB-73-39R is determined by the following critical parameters:

• Electrical Equivalence: Resistance value of 39 Ohms with ±5% tolerance and 2W power rating
• Composition & Construction: Metal oxide film composition with axial through-hole configuration
• Safety & Environmental Features: Flame-proof and safety-rated construction
• Regulatory Compliance: ROHS3 compliance and EAR99 ECCN classification
• Mechanical Compatibility: Axial package type with 2-pin termination

The ROX2SJ39R from TE Connectivity Passive Product meets these core substitution criteria. Both parts share identical resistance, tolerance, power rating, composition, and package type. Both are ROHS3 compliant and classified under the same HTSUS code (8533.21.0090).

Parameter Comparison

Engineering Selection Recommendations

Both the RSF200JB-73-39R and ROX2SJ39R are active production parts with ROHS3 compliance and EAR99 classification, meeting regulatory requirements for equivalent component selection. The primary distinction between these parts is the maximum operating temperature: the RSF200JB-73-39R operates to 235°C, while the ROX2SJ39R operates to 200°C. Selection should be based on the specific thermal requirements of the application. The ROX2SJ39R offers pulse-withstanding capability as an additional feature. Physical dimensions differ slightly, with the ROX2SJ39R being shorter (12.00mm vs 15.50mm length), which may affect board layout considerations in space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can ROX2SJ39R directly replace RSF200JB-73-39R in all applications?

A: Direct substitution is valid for applications operating at or below 200°C. Applications requiring operation above 200°C up to 235°C require the RSF200JB-73-39R. Both parts are electrically equivalent at 39 Ohms ±5% 2W with identical composition and axial package configuration.

Q: What is the significance of the physical dimension difference?

A: The ROX2SJ39R is 4.60mm shorter in length (12.00mm vs 15.50mm). This difference may impact PCB layout and spacing requirements. Verify board design clearances before substitution in space-constrained applications.

Q: Are both parts suitable for high-reliability applications?

A: Both parts are ROHS3 compliant with flame-proof and safety ratings. The ROX2SJ39R includes pulse-withstanding capability. Selection depends on specific application requirements and thermal operating conditions.

Q: What packaging formats are available?

A: The RSF200JB-73-39R is supplied in bulk packaging. The ROX2SJ39R is supplied in cut tape (CT) packaging. Verify packaging compatibility with procurement and assembly processes.

Q: Are there any temperature coefficient considerations?

A: The ROX2SJ39R specifies a temperature coefficient of ±350ppm/°C. The RSF200JB-73-39R does not provide this specification. For applications with strict temperature stability requirements, the specified coefficient of the ROX2SJ39R should be evaluated against circuit design tolerances.