Ohmite 45J150E Equivalent & Substitute Parts

Part Overview

The Ohmite 45J150E is a 150 Ohms ±5% 5W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is designed for applications requiring precision power dissipation in compact form factors. The part maintains Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required, or when tighter tolerance specifications are necessary for circuit requirements.

Substiute Parts

45J150E

OhmiteIn Stock: 123745J150E Datasheet

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45F150E

OhmiteIn Stock: 94345F150E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The Ohmite 45F150E qualifies as a direct substitute for the 45J150E based on the following criteria:

Matching Parameters:

• Resistance value: 150 Ohms (identical)
• Power rating: 5W (identical)
• Composition: Wirewound (identical)
• Package type: Axial (identical)
• Physical dimensions: 0.343" Dia × 0.937" L (identical)
• Temperature coefficient: ±20ppm/°C (identical)
• Operating temperature range: -55°C to 275°C (identical)
• RoHS compliance: Yes (identical)

Distinguishing Parameter:

• Tolerance: 45F150E provides ±1% tolerance versus 45J150E's ±5% tolerance

The 45F150E represents an upgrade path where improved tolerance specification is acceptable or required. Both parts share identical mechanical and thermal characteristics, enabling direct substitution in applications where tighter resistance tolerance enhances circuit performance.

Parameter Comparison

Engineering Selection Recommendations

45J150E Selection Criteria:

• Applications where ±5% tolerance meets circuit specifications
• Cost-optimized designs where tighter tolerance is not required
• Active product status with full RoHS compliance ensures supply chain continuity

45F150E Selection Criteria:

• Applications requiring ±1% tolerance for improved accuracy
• Circuits where resistance value stability directly impacts performance
• Direct mechanical and thermal compatibility with 45J150E footprint
• Active product status with full RoHS compliance

Both parts maintain identical compliance certifications (RoHS, EAR99 ECCN classification) and unlimited moisture sensitivity rating, supporting deployment in standard industrial and commercial environments across the full operating temperature range of -55°C to 275°C.

Frequently Asked Questions (FAQ)

Q: Can the 45F150E replace the 45J150E in existing designs? A: Yes. The 45F150E provides identical mechanical fit, thermal performance, and power rating. The primary difference is improved tolerance specification (±1% versus ±5%), which represents a performance upgrade with no compatibility concerns.

Q: What is the physical compatibility between these parts? A: Both parts share identical axial package dimensions (0.343" Dia × 0.937" L / 8.70mm × 23.80mm), enabling direct PCB footprint compatibility without layout modifications.

Q: Are there tolerance implications when substituting? A: The 45F150E's ±1% tolerance is tighter than the 45J150E's ±5% tolerance. This improves resistance accuracy and is suitable for all applications accepting the original part. No circuit redesign is required.

Q: Do both parts meet the same compliance requirements? A: Yes. Both the 45J150E and 45F150E are RoHS compliant with identical moisture sensitivity level (MSL 1 - Unlimited) and ECCN classification (EAR99).

Q: What is the temperature performance relationship between these parts? A: Both parts operate across -55°C to 275°C with identical temperature coefficient (±20ppm/°C), ensuring equivalent thermal stability and performance across the full operating range.

Q: Are there packaging differences between these parts? A: The 45J150E is supplied in Box packaging, while the 45F150E is supplied in Bulk packaging. This reflects inventory management differences only; the components themselves are identical in form factor and function.