Ohmite 43J150E Equivalent & Substitute Parts

Part Overview

The Ohmite 43J150E is a 3W, 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 701 units in stock. Alternative equivalent parts may be required due to packaging preferences, tolerance specifications, or supply chain considerations.

Substiute Parts

43J150E

OhmiteIn Stock: 75943J150E Datasheet

Current PartRFQ

43F150E

OhmiteIn Stock: 85443F150E Datasheet

UpgradeRFQ

WW3AJT150R

Stackpole Electronics IncIn Stock: 8359WW3AJT150R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 43J150E is determined by the following critical parameters: resistance value (150 Ohms), power rating (3W), composition (wirewound), and package type (axial). The substitute parts listed maintain these core electrical and mechanical specifications.

The 43F150E represents an upgrade path with improved tolerance (±1% versus ±5%), while maintaining identical power rating, resistance, temperature coefficient, and operating temperature range. Both parts are manufactured by Ohmite and share the same physical dimensions.

The WW3AJT150R from Stackpole Electronics Inc matches the resistance, power rating, tolerance, and temperature coefficient of the 43J150E. This part includes moisture-resistant construction and operates across an extended temperature range (-55°C to 350°C). Physical dimensions differ slightly, and packaging is supplied in cut tape format rather than box configuration.

Parameter Comparison

Engineering Selection Recommendations

All three parts are active products with current manufacturing status and full regulatory compliance. The 43J150E and 43F150E are both Ohmite components with identical physical dimensions and thermal characteristics, differing only in tolerance specification. Selection between these two depends on circuit tolerance requirements.

The WW3AJT150R from Stackpole Electronics Inc provides an alternative from a different manufacturer with equivalent electrical performance. This part includes moisture-resistant construction and supports operation to 350°C, exceeding the 275°C maximum of the Ohmite parts. Physical dimensions are slightly smaller. All three parts carry appropriate RoHS certifications for their respective compliance standards.

Frequently Asked Questions (FAQ)

Q: Can the 43F150E directly replace the 43J150E? A: Yes. Both parts share identical resistance (150 Ohms), power rating (3W), physical dimensions (0.220" Dia x 0.594" L), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 275°C). The 43F150E provides tighter tolerance (±1% versus ±5%), making it suitable for applications requiring higher precision.

Q: What are the physical differences between the 43J150E and WW3AJT150R? A: The WW3AJT150R has slightly smaller dimensions (0.187" Dia x 0.560" L versus 0.220" Dia x 0.594" L). Both maintain axial package configuration and identical electrical specifications. Verify board layout compatibility before substitution.

Q: Are all three parts RoHS compliant? A: Yes. The 43J150E and 43F150E are RoHS Compliant. The WW3AJT150R is ROHS3 Compliant. All three meet applicable environmental regulations.

Q: What is the difference in packaging between these parts? A: The 43J150E is supplied in box packaging. The 43F150E is supplied in bulk packaging. The WW3AJT150R is supplied in cut tape format. Packaging selection depends on assembly process requirements and order quantities.

Q: Can the WW3AJT150R be used in high-temperature applications? A: The WW3AJT150R operates to 350°C, compared to 275°C for the Ohmite parts. It is suitable for applications requiring extended temperature operation within this range.