B12J2R0 Equivalent & Substitute Parts

Part Overview

The B12J2R0 is a 2 Ohm, 12W axial wirewound resistor manufactured by Ohmite as part of the Brown Devil® 200 series. This component is designed for through-hole applications requiring flame retardant coating and safety features. The part is currently active in production with 698 units in stock. Substitute parts are identified when packaging or compliance requirements differ while maintaining identical electrical and mechanical specifications.

Substiute Parts

B12J2R0

OhmiteIn Stock: 802B12J2R0 Datasheet

Current PartRFQ

B12J2R0E

OhmiteIn Stock: 1132B12J2R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The B12J2R0E is classified as a parametric equivalent to the B12J2R0. Substitution is valid based on the following criteria:

• Identical resistance value: 2 Ohms
• Identical tolerance: ±5%
• Identical power rating: 12W
• Identical composition: Wirewound
• Identical package type: Axial
• Identical physical dimensions: 0.313" Dia x 1.750" L (7.94mm x 44.45mm)
• Identical temperature coefficient: ±400ppm/°C
• Identical features: Flame Retardant Coating, Safety

The primary difference between these parts is packaging format and RoHS compliance status. The B12J2R0E is supplied in bulk packaging and meets ROHS3 compliance, whereas the B12J2R0 is RoHS non-compliant.

Parameter Comparison

Engineering Selection Recommendations

Both B12J2R0 and B12J2R0E are active production parts from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory and compliance requirements:

• Select B12J2R0E for applications requiring ROHS3 compliance or when bulk packaging is preferred. This part offers higher inventory availability at 1088 units.
• Select B12J2R0 when RoHS non-compliant components are acceptable for the application.

Both parts are suitable for direct substitution in through-hole circuit board designs requiring 2 Ohm, 12W wirewound resistors with flame retardant coating.

Frequently Asked Questions (FAQ)

Q: Can B12J2R0E replace B12J2R0 in my circuit design?

A: Yes. Both parts have identical electrical specifications (2 Ohms, ±5%, 12W), composition (wirewound), package type (axial), and physical dimensions (0.313" Dia x 1.750" L). The primary differences are packaging format and RoHS compliance status, which do not affect electrical performance or mechanical fit.

Q: What is the difference in packaging between these parts?

A: B12J2R0 is supplied in standard packaging, while B12J2R0E is supplied in bulk packaging. Both contain the same component with identical specifications.

Q: Does RoHS compliance affect component performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical or thermal performance. Both parts deliver identical performance characteristics.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.313" diameter by 1.750" length (7.94mm x 44.45mm), ensuring identical board layout compatibility and mounting requirements.

Q: Which part should I select for new designs?

A: For new designs, B12J2R0E is recommended due to ROHS3 compliance and higher inventory availability, unless specific project requirements mandate the non-compliant variant.