B20J2K25 Equivalent & Substitute Parts

Part Overview

The B20J2K25 is a 2.25 kOhms ±5% 20W through-hole wirewound resistor manufactured by Ohmite in the Brown Devil® 200 series. This axial component features flame retardant coating and safety construction, designed for high-power applications requiring reliable thermal performance. The part is currently active in production with 1084 units in stock. Substitute parts are identified to address packaging preferences, compliance requirements, or inventory availability while maintaining identical electrical and mechanical specifications.

Substiute Parts

B20J2K25

OhmiteIn Stock: 1180B20J2K25 Datasheet

Current PartRFQ

B20J2K25E

OhmiteIn Stock: 798B20J2K25E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the B20J2K25 is based on strict equivalence across all critical electrical and mechanical parameters: resistance value (2.25 kOhms), tolerance (±5%), power rating (20W), composition (wirewound), package configuration (axial), physical dimensions (0.437" Dia x 2.000" L), temperature coefficient (±260ppm/°C), and safety features (flame retardant coating). The identified substitute maintains these specifications while differing only in packaging format and RoHS compliance status. Both parts belong to the Brown Devil® 200 series and are manufactured by Ohmite.

Parameter Comparison

Engineering Selection Recommendations

Both B20J2K25 and B20J2K25E are electrically and mechanically identical, differing only in packaging format and regulatory compliance status. Selection between these parts depends on application requirements:

The B20J2K25 is suitable for applications where RoHS compliance is not mandated or where legacy component specifications are acceptable. The B20J2K25E is the appropriate choice for designs requiring ROHS3 compliance or for procurement processes that enforce RoHS standards. Both parts maintain identical performance characteristics, thermal behavior, and physical form factor, ensuring direct interchangeability in circuit design and PCB layout.

Frequently Asked Questions (FAQ)

Q: Are B20J2K25 and B20J2K25E electrically identical? A: Yes. Both parts have identical resistance (2.25 kOhms), tolerance (±5%), power rating (20W), temperature coefficient (±260ppm/°C), and composition (wirewound). They are functionally equivalent in all electrical parameters.

Q: What is the difference between these two part numbers? A: The primary differences are packaging format (standard vs. bulk) and RoHS compliance status. B20J2K25 is RoHS non-compliant, while B20J2K25E is ROHS3 compliant. Physical dimensions and electrical specifications are identical.

Q: Can I use B20J2K25E as a direct replacement for B20J2K25? A: Yes, B20J2K25E is a direct substitute. It maintains the same axial package configuration, physical dimensions (0.437" Dia x 2.000" L), and all electrical parameters. Substitution is valid for circuit and PCB design purposes.

Q: Does RoHS compliance affect circuit performance? A: No. RoHS compliance relates to material composition and environmental standards, not electrical performance. Both parts deliver identical functional characteristics in circuit operation.

Q: Are there any thermal or reliability differences between these parts? A: No. Both parts share identical temperature coefficient (±260ppm/°C), power rating (20W), and safety features (flame retardant coating). Thermal and reliability performance are equivalent.

Q: Which part should I specify for new designs? A: Specify B20J2K25E for new designs if your application or procurement standards require RoHS compliance. If RoHS compliance is not a requirement, either part is acceptable based on availability and packaging preference.