Ohmite 25J680 680 Ohm 5W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 25J680 is a 680 Ohm, 5% tolerance, 5W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is suitable for general-purpose power dissipation applications requiring reliable thermal performance in compact axial packaging. Substitute parts become necessary when the primary part number is unavailable from inventory or when procurement requirements specify alternative packaging configurations or compliance certifications.

Substiute Parts

25J680

OhmiteIn Stock: 110525J680 Datasheet

Current PartRFQ

25J680E

OhmiteIn Stock: 80325J680E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 25J680E qualifies as a direct substitute based on identical electrical and mechanical parameters: 680 Ohm resistance, ±5% tolerance, 5W power rating, wirewound composition, axial package configuration, and matching physical dimensions of 0.276" Dia x 1.016" L (7.00mm x 25.80mm). The substitution is valid across all functional and thermal performance criteria. The primary distinction between the main part and substitute is packaging configuration (standard versus bulk) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 25J680E serves as a direct functional equivalent to the 25J680 for all electrical and mechanical applications. Selection between these parts should be based on compliance requirements and procurement specifications. The 25J680E offers ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements. The 25J680 remains appropriate for applications without RoHS compliance mandates. Packaging configuration (standard versus bulk) should be evaluated based on order quantity and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Can the 25J680E replace the 25J680 in existing designs? A: Yes. The 25J680E is electrically and mechanically identical to the 25J680, with matching resistance, tolerance, power rating, composition, package type, and physical dimensions. Direct substitution is valid for all circuit applications.

Q: What is the difference between the 25J680 and 25J680E? A: The primary differences are packaging configuration (standard versus bulk) and RoHS compliance status. The 25J680 is RoHS non-compliant, while the 25J680E is ROHS3 compliant. All electrical and thermal specifications are identical.

Q: Does the RoHS compliance difference affect circuit performance? A: No. RoHS compliance status reflects manufacturing and material sourcing standards, not electrical performance. Both parts deliver identical resistance, tolerance, power dissipation, and temperature coefficient characteristics.

Q: Are the physical dimensions identical between these parts? A: Yes. Both the 25J680 and 25J680E measure 0.276" Dia x 1.016" L (7.00mm x 25.80mm) and use identical axial package configuration, ensuring mechanical compatibility in PCB layouts and through-hole applications.

Q: Which part should be selected for new designs? A: For new designs subject to RoHS3 regulatory requirements, specify the 25J680E. For applications without RoHS compliance mandates, either part is acceptable based on availability and procurement preferences.