ROX1SJ680K Equivalent & Substitute Parts

Part Overview

The ROX1SJ680K is a 680 kOhms ±5% 1W through-hole resistor manufactured by TE Connectivity Passive Product. This axial metal oxide film resistor is designed for applications requiring flame-proof and pulse-withstanding characteristics with safety ratings. The component is currently in active production status with 1879 pieces available in new original inventory. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required for procurement flexibility, inventory management, or supply chain continuity.

Substiute Parts

ROX1SJ680K

TE Connectivity Passive ProductIn Stock: 1986ROX1SJ680K Datasheet

Current PartRFQ

RSF100JB-73-680K

YAGEOIn Stock: 13742RSF100JB-73-680K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ROX1SJ680K is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 680 kOhms
• Tolerance: ±5%
• Power rating: 1W
• Composition: Metal Oxide Film

Mechanical Compatibility Requirements:

• Package configuration: Axial through-hole
• Number of terminations: 2
• Physical form factor: Axial lead configuration

Compliance Requirements:

• RoHS3 compliance status
• REACH unaffected status
• ECCN and HTSUS classifications

The RSF100JB-73-680K from YAGEO meets all electrical and mechanical equivalence criteria. Both components share identical resistance, tolerance, power rating, and composition specifications. Both are configured as axial through-hole resistors with two terminations and maintain RoHS3 and REACH compliance. Physical dimensions differ slightly, but both conform to standard axial resistor form factors suitable for PCB mounting applications.

Parameter Comparison

Engineering Selection Recommendations

Both the ROX1SJ680K and RSF100JB-73-680K are active production components with full RoHS3 and REACH compliance. Selection between these parts is based on the following engineering considerations:

ROX1SJ680K (TE Connectivity): Suitable for applications with operating temperature requirements up to 130°C. Smaller physical dimensions (3.50mm diameter x 10.00mm length) accommodate space-constrained PCB layouts. Available in cut tape packaging format. Temperature coefficient specification of ±350ppm/°C is provided.

RSF100JB-73-680K (YAGEO): Suitable for applications with extended operating temperature requirements up to 235°C. Larger physical dimensions (4.50mm diameter x 11.50mm length) may be required for specific mechanical mounting applications. Available in bulk packaging format. Higher inventory availability (13648 pieces) supports high-volume procurement requirements.

Both components satisfy identical electrical specifications and mechanical compatibility requirements for standard through-hole PCB assembly processes. Selection should be based on thermal operating range requirements, available PCB space, and packaging format preferences.

Frequently Asked Questions (FAQ)

Q: Can RSF100JB-73-680K replace ROX1SJ680K in all applications?

A: The RSF100JB-73-680K is electrically equivalent to the ROX1SJ680K across all specified parameters: 680 kOhms resistance, ±5% tolerance, 1W power rating, and metal oxide film composition. Both are axial through-hole components with two terminations. Physical dimensions differ, requiring verification of available PCB space. The RSF100JB-73-680K operates to 235°C versus 130°C for the ROX1SJ680K, providing extended thermal capability.

Q: What are the physical dimension differences between these parts?

A: The ROX1SJ680K measures 0.138" diameter x 0.394" length (3.50mm x 10.00mm). The RSF100JB-73-680K measures 0.177" diameter x 0.453" length (4.50mm x 11.50mm). The YAGEO part is larger in both diameter and length. PCB layout and mounting hole spacing must accommodate the larger form factor of the RSF100JB-73-680K.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the ROX1SJ680K and RSF100JB-73-680K are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: What is the difference in packaging between these parts?

A: The ROX1SJ680K is supplied in cut tape (CT) packaging format. The RSF100JB-73-680K is supplied in bulk packaging format. Cut tape packaging is suitable for automated pick-and-place assembly processes, while bulk packaging is typical for manual assembly or high-volume reel-based automation.

Q: Which part has better temperature performance?

A: The RSF100JB-73-680K operates across a wider temperature range (-55°C to 235°C) compared to the ROX1SJ680K (-55°C to 130°C). Applications requiring operation above 130°C require the RSF100JB-73-680K. For applications within the -55°C to 130°C range, both parts are functionally equivalent.

Q: Are the electrical characteristics identical between these parts?

A: Yes. Both parts share identical electrical specifications: 680 kOhms resistance, ±5% tolerance, 1W power rating, and metal oxide film composition. The ROX1SJ680K specifies a temperature coefficient of ±350ppm/°C. The RSF100JB-73-680K temperature coefficient is not specified in the provided data.