Ohmite 810F150 Equivalent & Substitute Parts

Part Overview

The Ohmite 810F150 is a 150 Ohms ±1% 10W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement. The 810F150 features aluminum housing with flanged mounting and solder lugs, designed for applications requiring precision wirewound resistance in compact form factors.

Substiute Parts

810F150

OhmiteIn Stock: 902810F150 Datasheet

Current PartRFQ

825F150E

OhmiteIn Stock: 1080825F150E Datasheet

MFR RecommendedRFQ

810F150E

OhmiteIn Stock: 1240810F150E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 810F150 is determined by the following critical parameters: resistance value (150 Ohms), tolerance (±1%), composition (wirewound), temperature coefficient (±20ppm/°C), operating temperature range (-55°C ~ 275°C), housing type (aluminum), mounting feature (flanges), and lead style (solder lugs). All substitute parts must maintain these core electrical and mechanical specifications.

Two substitute categories are identified:

Parametric Equivalent (810F150E): Maintains identical electrical specifications and physical dimensions as the original 810F150, with updated product status and compliance certifications.

Manufacturer Recommended Substitute (825F150E): Maintains identical electrical specifications and core mechanical features but with increased power rating (25W) and larger physical dimensions to accommodate the higher power capacity.

Parameter Comparison

Engineering Selection Recommendations

810F150E (Parametric Equivalent): This part is the direct replacement for the obsolete 810F150. It maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. Selection of 810F150E is appropriate for applications where the original 10W power rating and compact form factor are required and space constraints are critical.

825F150E (Manufacturer Recommended Substitute): This part provides increased power dissipation capacity (25W) while maintaining all core electrical parameters. The larger physical dimensions accommodate the higher power rating. Selection of 825F150E is appropriate for applications where thermal margin is desired or where the design can accommodate the increased size. ROHS3 compliance is provided.

Frequently Asked Questions (FAQ)

Q: Can 810F150E be used as a direct replacement for 810F150? A: Yes. The 810F150E maintains identical resistance (150 Ohms), tolerance (±1%), power rating (10W), temperature coefficient (±20ppm/°C), operating temperature range (-55°C ~ 275°C), and physical dimensions (0.750" L x 0.812" W, 0.400" height). It is a parametric equivalent with active product status.

Q: What is the primary difference between 810F150E and 825F150E? A: The 825F150E has a higher power rating (25W versus 10W) and larger physical dimensions (1.062" L x 1.094" W, 0.556" height versus 0.750" L x 0.812" W, 0.400" height). All electrical parameters remain identical.

Q: Are there space constraints I should consider when selecting between these substitutes? A: Yes. The 810F150E maintains the original compact form factor (0.750" L x 0.812" W x 0.400" height). The 825F150E requires additional board space due to its larger dimensions (1.062" L x 1.094" W x 0.556" height). Verify available mounting area before selection.

Q: Do all substitute parts meet current compliance requirements? A: Both 810F150E and 825F150E are ROHS3 compliant and REACH unaffected. The original 810F150 is RoHS non-compliant. Compliance requirements should be evaluated against your application standards.

Q: Can 825F150E be used in applications originally designed for 810F150? A: Electrical compatibility is maintained (150 Ohms ±1%, ±20ppm/°C, -55°C ~ 275°C operating range). Mechanical compatibility depends on available mounting space and PCB layout. The larger dimensions of 825F150E must fit within the design envelope.