B5J2R2 Equivalent & Substitute Parts

Part Overview

The B5J2R2 is a 2.2 Ohm ±5% 5.25W through-hole axial wirewound resistor manufactured by Ohmite as part of the Brown Devil® 200 series. This component is designed for applications requiring reliable power dissipation with flame retardant coating and safety features. The part is currently active in production with 700 units in stock. Substitute parts are identified to provide alternative sourcing options while maintaining identical electrical and mechanical specifications.

Substiute Parts

B5J2R2

OhmiteIn Stock: 721B5J2R2 Datasheet

Current PartRFQ

B5J2R2E

OhmiteIn Stock: 735B5J2R2E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the B5J2R2 are identified based on strict parametric equivalence. The following criteria determine substitutability:

• Resistance value: 2.2 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 5.25W (exact match required)
• Package type: Axial (exact match required)
• Physical dimensions: 0.250" Dia x 0.625" L (exact match required)
• Composition: Wirewound (exact match required)
• Temperature coefficient: ±400ppm/°C (exact match required)
• Features: Flame retardant coating and safety characteristics (exact match required)

The B5J2R2E is classified as a parametric equivalent substitute. It maintains identical electrical specifications and mechanical form factor, with the primary distinction being packaging configuration (Bulk versus standard packaging) and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the B5J2R2 and B5J2R2E are active production components from Ohmite's Brown Devil® 200 series with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

• B5J2R2: Select for applications where RoHS non-compliant components are acceptable or required by design specifications.
• B5J2R2E: Select for applications requiring ROHS3 compliance or where regulatory standards mandate RoHS-compliant components.

Both parts are available in adequate inventory quantities and maintain the same performance characteristics, physical dimensions, and thermal properties.

Frequently Asked Questions (FAQ)

Q: Can B5J2R2E be used as a direct replacement for B5J2R2?

A: Yes. The B5J2R2E is a parametric equivalent with identical resistance, tolerance, power rating, package type, and physical dimensions. The primary difference is RoHS compliance status. Substitution is valid from an electrical and mechanical standpoint.

Q: What is the difference between the standard packaging and Bulk packaging?

A: Packaging designation refers to the quantity and format of delivery. Both part numbers represent the same component with identical specifications. Bulk packaging typically indicates larger quantity shipments or alternative packaging configurations, but the electrical and mechanical properties remain unchanged.

Q: Are the physical dimensions identical between B5J2R2 and B5J2R2E?

A: Yes. Both parts share the same axial package dimensions of 0.250" diameter by 0.625" length (6.35mm x 15.88mm). They are mechanically interchangeable in PCB layouts and through-hole applications.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For designs requiring RoHS3 compliance, specify B5J2R2E. For applications without RoHS compliance mandates, either part is suitable based on availability and procurement preferences.

Q: Do these parts have identical temperature coefficients?

A: Yes. Both B5J2R2 and B5J2R2E maintain a temperature coefficient of ±400ppm/°C, ensuring consistent performance across the operating temperature range.