Ohmite 45J15R Equivalent & Substitute Parts

Part Overview

The Ohmite 45J15R is a 15 Ohms ±5% 5W through-hole resistor with axial wirewound composition, part of the Ohmicone® 40 series. This component is currently active in production and maintains 869 pieces in new original stock. The 45J15R is packaged in a box configuration and is classified as RoHS non-compliant. Substitute parts are identified to provide alternative sourcing options when the primary part number becomes unavailable or when packaging requirements differ.

Substiute Parts

45J15R

OhmiteIn Stock: 96145J15R Datasheet

Current PartRFQ

45J15RE

OhmiteIn Stock: 126245J15RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 45J15R are identified based on electrical and mechanical parameter equivalence. The primary substitution criterion is parametric matching across resistance value, tolerance, power rating, composition type, and physical package configuration. The Ohmite 45J15RE qualifies as a parametric equivalent because it maintains identical electrical specifications: 15 Ohms ±5% at 5W with wirewound composition and axial package geometry. The key differentiator between the main part and its substitute is packaging format (box versus bulk) and RoHS compliance status. Both parts share the same series designation (Ohmicone® 40), temperature coefficient (±20ppm/°C), physical dimensions (0.343" Dia x 0.937" L), and termination count (2).

Parameter Comparison

Engineering Selection Recommendations

Both the 45J15R and 45J15RE are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on three factors: packaging requirements, regulatory compliance, and inventory availability.

The 45J15R is supplied in box packaging and carries RoHS non-compliant status. This part is suitable for applications where RoHS compliance is not a requirement and box packaging is preferred for component organization or traceability.

The 45J15RE is supplied in bulk packaging and is ROHS3 compliant. This part is suitable for applications requiring RoHS3 compliance and where bulk packaging is acceptable. The 45J15RE also maintains higher inventory availability (1227 pieces versus 869 pieces), providing improved sourcing reliability.

Both parts are suitable for direct substitution in circuits requiring a 15 Ohm, 5W, ±5% tolerance wirewound axial resistor operating across the -55°C to 275°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can the 45J15RE be used as a direct replacement for the 45J15R?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance (15 Ohms), tolerance (±5%), power rating (5W), composition (wirewound), package type (axial), temperature coefficient (±20ppm/°C), and physical dimensions (0.343" Dia x 0.937" L). The primary differences are packaging format (box versus bulk) and RoHS compliance status.

Q: What is the difference between box and bulk packaging?

A: Box packaging typically includes individual component packaging with labeling and traceability documentation, suitable for smaller quantity orders and applications requiring component-level tracking. Bulk packaging consolidates components without individual wrapping, suitable for high-volume manufacturing and automated assembly processes.

Q: Does RoHS3 compliance affect electrical performance?

A: No. RoHS3 compliance is a regulatory designation indicating the absence of restricted substances (lead, cadmium, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated diphenyl ethers) in the component composition. Electrical and thermal performance characteristics remain unchanged.

Q: Are the physical dimensions identical between 45J15R and 45J15RE?

A: Yes. Both parts share identical physical dimensions of 0.343" diameter by 0.937" length (8.70mm x 23.80mm), ensuring compatibility with existing PCB layouts and mechanical assemblies.

Q: Which part should be selected for new designs?

A: For new designs, the 45J15RE is recommended due to ROHS3 compliance, which aligns with current regulatory standards and environmental requirements. The higher inventory availability also provides improved supply chain reliability.