B5J30R Equivalent & Substitute Parts

Part Overview

The B5J30R is a 30 Ohm, 5.25W wirewound axial 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 in high-power dissipation circuits. The part is currently in active production status with 995 units in stock. Substitute parts are identified when identical electrical and mechanical parameters are maintained across alternative packaging or compliance configurations.

Substiute Parts

B5J30R

OhmiteIn Stock: 1033B5J30R Datasheet

Current PartRFQ

B5J30RE

OhmiteIn Stock: 1259B5J30RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The B5J30RE is classified as a parametric equivalent to the B5J30R based on the following criteria:

Electrical Parameters (Identical):

• Resistance value: 30 Ohms
• Tolerance: ±5%
• Power rating: 5.25W
• Temperature coefficient: ±260ppm/°C

Mechanical Parameters (Identical):

• Package type: Axial
• Physical dimensions: 0.250" Dia x 0.625" L (6.35mm x 15.88mm)
• Number of terminations: 2
• Composition: Wirewound

Functional Features (Identical):

• Flame retardant coating
• Safety features
• Brown Devil® 200 series

The primary difference between these parts is packaging configuration (Bulk for B5J30RE versus standard for B5J30R) and RoHS compliance status, which does not affect electrical or mechanical interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both B5J30R and B5J30RE are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on regulatory compliance requirements:

• B5J30R is suitable for applications where RoHS compliance is not mandated or where legacy component specifications are required.
• B5J30RE is the appropriate selection for designs requiring ROHS3 compliance and applications subject to environmental regulations restricting hazardous substances.

Both parts maintain identical circuit performance characteristics and are mechanically interchangeable in axial through-hole PCB layouts.

Frequently Asked Questions (FAQ)

Q: Are B5J30R and B5J30RE electrically interchangeable? A: Yes. Both parts have identical resistance (30 Ohms), tolerance (±5%), power rating (5.25W), and temperature coefficient (±260ppm/°C). They will perform identically in circuit applications.

Q: What is the difference between these two part numbers? A: The primary differences are packaging configuration (Bulk for B5J30RE) and RoHS compliance status. B5J30RE is ROHS3 compliant, while B5J30R is RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Can I use B5J30RE as a direct replacement for B5J30R on a PCB? A: Yes. Both parts are axial wirewound resistors with identical physical dimensions (0.250" Dia x 0.625" L) and two terminations. They are mechanically and electrically interchangeable in through-hole applications.

Q: Which part should I specify for new designs? A: For new designs subject to environmental or regulatory requirements, specify B5J30RE for ROHS3 compliance. For applications without such requirements, either part is acceptable based on availability and cost considerations.

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