Ohmite B8J2K5 2.5 kOhm 8W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite B8J2K5 is a 2.5 kOhm, 8W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status. Substitute parts are identified when inventory constraints, packaging preferences, or compliance requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

B8J2K5

OhmiteIn Stock: 917B8J2K5 Datasheet

Current PartRFQ

B8J2K5E

OhmiteIn Stock: 911B8J2K5E Datasheet

Parametric EquivalentRFQ

B8J2K5E

OhmiteIn Stock: 911B8J2K5E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the B8J2K5 are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

• Resistance value: 2.5 kOhms
• Tolerance: ±5%
• Power rating: 8W
• Composition: Wirewound
• Package: Axial
• Temperature coefficient: ±260ppm/°C
• Features: Flame retardant coating and safety characteristics
• Physical dimensions: 0.313" Dia x 1.000" L (7.94mm x 25.40mm)
• Terminations: 2-pin axial configuration

The B8J2K5E meets all specified parameters and qualifies as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

Both B8J2K5 and B8J2K5E are Active status components manufactured by Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs.

The B8J2K5E offers RoHS compliance and defined moisture sensitivity rating (MSL 1), making it suitable for applications requiring regulatory compliance documentation. The B8J2K5 remains available for applications where RoHS compliance is not a requirement.

Packaging differences exist: B8J2K5 is supplied in standard packaging, while B8J2K5E is supplied in bulk packaging. Both maintain identical component specifications and physical dimensions.

Frequently Asked Questions (FAQ)

Q: Can B8J2K5E be used as a direct replacement for B8J2K5?

A: Yes. Both components share identical electrical parameters (2.5 kOhms, ±5%, 8W), composition (wirewound), temperature coefficient (±260ppm/°C), physical dimensions (0.313" Dia x 1.000" L), and safety features (flame retardant coating). The primary differences are RoHS compliance status and packaging format.

Q: What is the difference between B8J2K5 and B8J2K5E?

A: The B8J2K5E is RoHS compliant with MSL 1 rating, while the B8J2K5 is RoHS non-compliant. Both components are electrically and mechanically identical. The B8J2K5E is supplied in bulk packaging versus standard packaging for the B8J2K5.

Q: Are the physical dimensions identical between substitute parts?

A: Yes. Both B8J2K5 and B8J2K5E measure 0.313" diameter by 1.000" length (7.94mm x 25.40mm) and feature 2-pin axial termination. PCB layout and mounting considerations are identical.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS compliance documentation, specify B8J2K5E. For applications without RoHS requirements, either part is acceptable based on availability and packaging preference.

Q: Is the temperature coefficient the same across substitute parts?

A: Yes. Both B8J2K5 and B8J2K5E maintain ±260ppm/°C temperature coefficient, ensuring equivalent thermal performance across the specified operating range.