Equivalent & Substitute Parts: B8J7R5

Part Overview

The Ohmite B8J7R5 is a 7.5 Ohm, 5% tolerance, 8W axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status and is suitable for through-hole applications requiring reliable power dissipation in industrial and electronic assemblies. Substitute parts are identified when packaging configurations differ, compliance certifications are updated, or inventory availability requires alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

B8J7R5

OhmiteIn Stock: 1040B8J7R5 Datasheet

Current PartRFQ

B8J7R5E

OhmiteIn Stock: 983B8J7R5E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The B8J7R5E is a direct electrical and mechanical equivalent to the B8J7R5. Substitution is valid based on the following criteria:

• Resistance Value: Identical at 7.5 Ohms
• Tolerance: Identical at ±5%
• Power Rating: Identical at 8W
• Composition: Identical wirewound construction
• Package Type: Identical axial configuration
• Physical Dimensions: Identical at 0.313" Dia x 1.000" L
• Temperature Coefficient: Identical at ±260ppm/°C
• Features: Identical flame retardant coating and safety features
• Series: Identical Brown Devil® 200 series

The primary difference between these parts is packaging configuration (Bulk for B8J7R5E versus standard for B8J7R5) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both B8J7R5 and B8J7R5E are Active status components suitable for direct substitution in applications requiring 7.5 Ohm, 8W axial wirewound resistors. Selection between these parts is determined by regulatory and compliance requirements:

• B8J7R5: Select when RoHS non-compliant components are acceptable for the application.
• B8J7R5E: Select for applications requiring ROHS3 compliance. This variant provides updated environmental compliance certification while maintaining identical electrical performance and mechanical compatibility.

Both parts share identical electrical specifications, physical dimensions, and thermal characteristics. Interchangeability is confirmed across all functional parameters.

Frequently Asked Questions (FAQ)

Q: Can B8J7R5E replace B8J7R5 in existing designs?

A: Yes. The B8J7R5E is electrically and mechanically identical to the B8J7R5. All electrical parameters, physical dimensions, and thermal characteristics are equivalent. Substitution is valid for direct board-level replacement.

Q: What is the difference between B8J7R5 and B8J7R5E?

A: The primary differences are packaging configuration (Bulk for B8J7R5E) and RoHS compliance status. B8J7R5E is ROHS3 compliant, while B8J7R5 is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Are there any dimensional differences between these parts?

A: No. Both parts share identical physical dimensions of 0.313" Dia x 1.000" L (7.94mm x 25.40mm). Board layout and mechanical fit are equivalent.

Q: Which part should I select for new designs?

A: Selection depends on regulatory requirements. For applications requiring ROHS3 compliance, specify B8J7R5E. For applications without RoHS compliance requirements, either part is acceptable based on availability and procurement preferences.

Q: Are the temperature coefficients identical?

A: Yes. Both B8J7R5 and B8J7R5E have identical temperature coefficients of ±260ppm/°C, ensuring equivalent thermal performance across operating ranges.