B20J2R0 Equivalent & Substitute Parts

Part Overview

The B20J2R0 is a 2 Ohm, 20W wirewound axial 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 829 units in stock. Substitute parts are identified to address inventory availability, compliance requirements, or specific application needs while maintaining electrical and mechanical compatibility.

Substiute Parts

B20J2R0

OhmiteIn Stock: 917B20J2R0 Datasheet

Current PartRFQ

B20J2R0E

OhmiteIn Stock: 873B20J2R0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the B20J2R0 is based on strict electrical and mechanical parameter matching within the Brown Devil® 200 series. The substitute part B20J2R0E maintains identical specifications across all critical parameters: 2 Ohm resistance value, ±5% tolerance, 20W power rating, wirewound composition, axial package configuration, and physical dimensions (0.437" Dia x 2.000" L). Both parts feature flame retardant coating and safety construction with identical temperature coefficient performance (±400ppm/°C).

The primary distinction between these parts is compliance status. The B20J2R0E achieves RoHS3 compliance, whereas the original B20J2R0 is RoHS non-compliant. Both parts maintain REACH Unaffected status and identical ECCN/HTSUS classifications. Substitution is valid when compliance requirements or inventory considerations necessitate component selection.

Parameter Comparison

Engineering Selection Recommendations

Selection between B20J2R0 and B20J2R0E is determined by regulatory and compliance requirements applicable to the end application.

Use B20J2R0 when RoHS compliance is not mandated and existing inventory or cost considerations are primary factors. This part remains active in production and maintains full electrical and mechanical compatibility with applications designed for the Brown Devil® 200 series.

Use B20J2R0E when RoHS3 compliance is required by design specifications, customer requirements, or regional regulations. The B20J2R0E provides identical electrical performance and mechanical fit while meeting current RoHS3 standards. Current inventory of 862 units supports immediate availability.

Both parts are suitable for direct substitution in circuit designs without modification to PCB layouts, thermal management, or electrical calculations, provided compliance requirements are satisfied.

Frequently Asked Questions (FAQ)

Q: Are B20J2R0 and B20J2R0E electrically interchangeable?

A: Yes. Both parts deliver identical electrical performance: 2 Ohm resistance at ±5% tolerance, 20W power dissipation capability, and ±400ppm/°C temperature coefficient. Electrical behavior in circuit operation is equivalent.

Q: Can B20J2R0E be used as a direct replacement for B20J2R0 in existing designs?

A: Yes. The parts are mechanically and electrically identical. Physical dimensions (0.437" Dia x 2.000" L) and axial package configuration ensure compatibility with existing PCB layouts and through-hole mounting without modification.

Q: What is the primary difference between these parts?

A: The B20J2R0E achieves RoHS3 compliance, while the B20J2R0 is RoHS non-compliant. All other specifications, including resistance value, power rating, composition, and physical dimensions, are identical.

Q: Which part should be selected for new designs?

A: B20J2R0E is recommended for new designs to ensure compliance with current RoHS3 regulations and future regulatory requirements. Both parts are active in production.

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

A: No. Temperature coefficient (±400ppm/°C), thermal characteristics, and performance under rated conditions are identical for both parts.

Q: What is the impact of RoHS compliance on part selection?

A: RoHS compliance is a regulatory requirement in many markets and may be mandated by customer specifications or end-use applications. B20J2R0E satisfies RoHS3 requirements; B20J2R0 does not. Selection depends on applicable compliance requirements for the target application.