Ohmite 825F150 Equivalent & Substitute Parts

Part Overview

The Ohmite 825F150 is a 150 Ohms ±1% 25W wirewound chassis mount resistor designed for high-power applications requiring precision and thermal stability. This component features aluminum housing with flanged mounting and solder lug termination, suitable for applications operating across -55°C to 275°C. The 825F150 is classified as obsolete, necessitating identification of active equivalent parts to ensure design continuity and procurement availability for new production and maintenance applications.

Substiute Parts

825F150

OhmiteIn Stock: 1057825F150 Datasheet

Current PartRFQ

825F150E

OhmiteIn Stock: 1080825F150E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The 825F150E qualifies as a direct substitute for the 825F150 based on identical electrical and mechanical parameters. Substitution is valid when the following criteria are met:

• Resistance value: 150 Ohms
• Tolerance: ±1%
• Power rating: 25W
• Composition: Wirewound
• Temperature coefficient: ±20ppm/°C
• Operating temperature range: -55°C to 275°C
• Housing type: Aluminum
• Mounting feature: Flanges
• Lead style: Solder Lugs
• Physical dimensions: 1.062" L x 1.094" W (26.98mm x 27.79mm)
• Height - Seated (Max): 0.556" (14.12mm)

The 825F150E maintains full electrical and mechanical compatibility with the original 825F150 specification while offering improved product status and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The 825F150E is the direct equivalent replacement for the obsolete 825F150. Both components are manufactured by Ohmite within the Metal-Mite®89 series and maintain identical electrical specifications and mechanical form factors. The primary distinction is product status and regulatory compliance: the 825F150E is active production and ROHS3 compliant, whereas the 825F150 is obsolete and RoHS non-compliant.

For new designs and production applications, the 825F150E should be specified. For legacy system maintenance where the original 825F150 is required, the 825F150E provides full functional and physical compatibility while offering improved regulatory standing and supply chain availability.

Frequently Asked Questions (FAQ)

Q: Can the 825F150E be used as a direct replacement for the 825F150?

A: Yes. The 825F150E is electrically and mechanically identical to the 825F150. All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) and physical dimensions are equivalent. The components are interchangeable in circuit applications.

Q: What is the primary reason to transition from 825F150 to 825F150E?

A: The 825F150 is obsolete with no active production. The 825F150E is the active equivalent, ensuring long-term supply chain availability and regulatory compliance. The 825F150E is ROHS3 compliant, whereas the 825F150 is RoHS non-compliant.

Q: Are there packaging differences between these parts?

A: Yes. The 825F150 is supplied in bulk packaging, while the 825F150E is supplied in tray packaging. Both maintain identical component specifications and form factors. Packaging selection depends on procurement and assembly requirements.

Q: What are the key electrical parameters that define substitution eligibility?

A: Substitution is valid when resistance value (150 Ohms), tolerance (±1%), power rating (25W), temperature coefficient (±20ppm/°C), and operating temperature range (-55°C to 275°C) are identical. The 825F150E meets all these criteria.

Q: Are the physical dimensions identical?

A: Yes. Both the 825F150 and 825F150E have identical dimensions: 1.062" L x 1.094" W (26.98mm x 27.79mm) with a maximum seated height of 0.556" (14.12mm). PCB layout and mechanical mounting are fully compatible.