Ohmite 40J150E Equivalent & Substitute Parts

Part Overview

The Ohmite 40J150E is a 10W, 150 Ohms ±5% through-hole axial wirewound resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision power dissipation in compact form factors. The part is currently active in production with 641 pieces available in new original stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

40J150E

OhmiteIn Stock: 67040J150E Datasheet

Current PartRFQ

40J150

OhmiteIn Stock: 97340J150 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 40J150E is determined by strict equivalence across the following critical parameters:

• Resistance value: 150 Ohms
• Tolerance: ±5%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial
• Temperature coefficient: ±20ppm/°C
• Physical dimensions: 0.406" Dia x 1.902" L (10.30mm x 48.30mm)
• Number of terminations: 2

The identified substitute part maintains electrical and mechanical compatibility with the main part number across all specified parameters. Packaging format differences (box versus bulk) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

Both the 40J150E and 40J150 are functionally equivalent across all electrical and mechanical specifications. Selection between these parts should be based on the following factors:

The 40J150E is RoHS compliant and supplied in box packaging, making it suitable for applications subject to RoHS regulatory requirements or where packaged component handling is preferred.

The 40J150 is supplied in bulk packaging and is RoHS non-compliant. This part is appropriate for applications where RoHS compliance is not a requirement and bulk component procurement is acceptable. Higher inventory availability (937 pieces) may support extended production runs.

Both parts share identical electrical performance characteristics, operating temperature range, and physical form factor, ensuring direct functional interchangeability in circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the 40J150 substitute for the 40J150E in all applications?

A: The 40J150 is electrically and mechanically equivalent to the 40J150E. The primary difference is RoHS compliance status. If your application or regulatory environment requires RoHS compliance, the 40J150E must be used. For applications without RoHS requirements, the 40J150 provides functional equivalence.

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

A: Box packaging (40J150E) provides individual component packaging suitable for controlled inventory and traceability. Bulk packaging (40J150) supplies components without individual packaging, typically used for high-volume manufacturing environments. Both formats contain identical components with identical electrical specifications.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 40J150E and 40J150 share identical physical dimensions of 0.406" diameter by 1.902" length (10.30mm x 48.30mm). They are mechanically interchangeable in PCB layouts and mechanical assemblies.

Q: What does RoHS non-compliant mean for the 40J150?

A: RoHS non-compliance indicates the 40J150 may contain materials or substances restricted under the Restriction of Hazardous Substances directive. This part is suitable for applications and markets where RoHS compliance is not mandated. Verify regulatory requirements for your specific application before selection.

Q: Can I use either part interchangeably in my circuit design?

A: Electrical interchangeability is confirmed across all specified parameters: 150 Ohms ±5%, 10W power rating, ±20ppm/°C temperature coefficient, and -55°C to 275°C operating range. Mechanical interchangeability is also confirmed. Selection should be based on packaging format preference and RoHS compliance requirements for your application environment.