Ohmite B5J8R2 8.2 Ohm 5.25W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite B5J8R2 is an 8.2 Ohm, 5% tolerance, 5.25W through-hole axial wirewound resistor with flame retardant coating and safety features. This Brown Devil® 200 series component is currently in active production status. Substitute parts are identified when original inventory is unavailable, when packaging requirements differ, or when compliance certifications must be updated for specific applications.

Substiute Parts

B5J8R2

OhmiteIn Stock: 710B5J8R2 Datasheet

Current PartRFQ

B5J8R2E

OhmiteIn Stock: 821B5J8R2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The B5J8R2E is classified as a parametric equivalent to the B5J8R2. Substitution is valid based on the following criteria:

• Electrical Parameters: Identical resistance value (8.2 Ohms), tolerance (±5%), and power rating (5.25W)
• Mechanical Parameters: Identical package type (Axial), physical dimensions (0.250" Dia x 0.625" L), and termination count (2)
• Thermal Parameters: Identical temperature coefficient (±260ppm/°C)
• Material & Features: Identical composition (Wirewound), flame retardant coating, and safety features
• Compliance Difference: B5J8R2E carries ROHS3 compliance and MSL 1 rating, whereas B5J8R2 is RoHS non-compliant

Parameter Comparison

Engineering Selection Recommendations

Both the B5J8R2 and B5J8R2E are active production components from Ohmite's Brown Devil® 200 series. Selection between these parts is determined by regulatory and compliance requirements:

• B5J8R2: Select when RoHS non-compliant designs are acceptable and standard packaging is required.
• B5J8R2E: Select for applications requiring ROHS3 compliance and bulk packaging. This variant is the preferred choice for new designs and applications subject to environmental regulations.

Both parts are electrically and mechanically identical, ensuring direct substitution in circuit applications without design modification.

Frequently Asked Questions (FAQ)

Q: Can B5J8R2E be used as a direct replacement for B5J8R2?

A: Yes. The B5J8R2E is a direct parametric equivalent. All electrical specifications (8.2 Ohms, ±5%, 5.25W), mechanical dimensions (0.250" Dia x 0.625" L), and thermal characteristics (±260ppm/°C) are identical. The primary difference is RoHS compliance status and packaging format.

Q: What is the difference between the packaging formats?

A: B5J8R2 uses standard packaging, while B5J8R2E is supplied in bulk packaging. Both maintain identical component specifications and physical dimensions suitable for axial through-hole PCB mounting.

Q: Does RoHS compliance affect electrical performance?

A: No. ROHS3 compliance in the B5J8R2E reflects manufacturing process changes and material sourcing, not electrical or thermal performance. Both parts deliver identical resistance, tolerance, power rating, and temperature coefficient specifications.

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

A: Both parts operate with a temperature coefficient of ±260ppm/°C. Operating temperature limits are not specified in the provided data. Consult Ohmite datasheets for specific thermal operating ranges.

Q: Which part should be selected for new designs?

A: The B5J8R2E is recommended for new designs due to ROHS3 compliance and active production status. This ensures long-term availability and regulatory alignment with current environmental standards.