Equivalent & Substitute Parts for B8J4R0

Part Overview

The B8J4R0 is a 4 Ohm, 8W axial wirewound resistor manufactured by Ohmite as part of the Brown Devil® 200 series. This through-hole component features flame retardant coating and safety construction, designed for applications requiring reliable power dissipation in compact form factors. The part is currently active in production with 977 units in stock. Substitute parts are identified to address packaging variations and compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

B8J4R0

OhmiteIn Stock: 1064B8J4R0 Datasheet

Current PartRFQ

B8J4R0E

OhmiteIn Stock: 955B8J4R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the B8J4R0 is determined by strict equivalence across the following critical parameters:

• Resistance value: 4 Ohms
• Tolerance: ±5%
• Power rating: 8W
• Composition: Wirewound
• Package type: Axial
• Physical dimensions: 0.313" Dia x 1.000" L
• Temperature coefficient: ±400ppm/°C
• Features: Flame retardant coating and safety construction

The B8J4R0E qualifies as a parametric equivalent because it maintains identical electrical characteristics and mechanical form factor. The primary distinction is packaging configuration (bulk versus standard) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both B8J4R0 and B8J4R0E are active production components from Ohmite's Brown Devil® 200 series with identical electrical performance and mechanical compatibility. Selection between these parts depends on regulatory and procurement requirements:

The B8J4R0E is suitable for applications requiring ROHS3 compliance. The B8J4R0 remains appropriate for applications without RoHS mandates. Packaging differences (bulk versus standard) do not affect electrical or mechanical performance and reflect only distribution and handling configurations. Both parts maintain equivalent thermal and electrical characteristics across the specified operating range.

Frequently Asked Questions (FAQ)

Q: Can B8J4R0E be used as a direct replacement for B8J4R0 in existing designs?

A: Yes. The B8J4R0E is electrically and mechanically equivalent. It maintains identical resistance value, tolerance, power rating, temperature coefficient, and physical dimensions. The primary difference is RoHS compliance status and packaging format.

Q: What is the significance of the packaging difference between B8J4R0 and B8J4R0E?

A: Packaging designation (standard versus bulk) refers to distribution and handling configuration only. It does not affect component performance, electrical characteristics, or mechanical fit in circuit board applications.

Q: Are there any thermal or electrical performance differences between these parts?

A: No. Both parts share identical specifications for resistance, tolerance, power dissipation capability, and temperature coefficient. Thermal performance in circuit applications will be equivalent.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, specify B8J4R0E. For applications without RoHS mandates, either part is suitable based on availability and procurement preferences.

Q: Do these parts require different handling or storage procedures?

A: The B8J4R0E has a defined Moisture Sensitivity Level (MSL 1 - Unlimited), while the B8J4R0 is listed as Not Applicable. Consult component datasheets for specific storage and handling requirements if moisture sensitivity is a concern for your application environment.