Equivalent & Substitute Parts for Ohmite F20J150

Part Overview

The Ohmite F20J150 is a 150 Ohms ±5% 20W wirewound chassis mount resistor from the Stackohm® 250 series. This component is designed for applications requiring high power dissipation with stable resistance values across extended temperature ranges. The part is currently active in production with 1090 units in stock. Substitute parts are identified to address specific application requirements, including power rating variations and compliance certifications.

Substiute Parts

F20J150

OhmiteIn Stock: 1178F20J150 Datasheet

Current PartRFQ

F10J150

OhmiteIn Stock: 1041F10J150 Datasheet

Parametric EquivalentRFQ

F20J150E

OhmiteIn Stock: 890F20J150E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the F20J150 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 150 Ohms
• Tolerance: ±5%
• Composition: Wirewound
• Temperature Coefficient: ±260ppm/°C
• Operating Temperature Range: -55°C to 350°C
• Coating: Vitreous Enamel Coated
• Mounting Feature: Flange Braces, Right Angle
• Lead Style: Solder Lugs
• Package Type: Radial, Flat Oval

Variable Parameters (Allowable Differences):

• Power Rating: May differ based on application requirements
• Physical dimensions: Length may vary while maintaining functional compatibility
• RoHS compliance status: Substitutes may have different compliance certifications
• Packaging format: Bulk or standard packaging options

The identified substitutes maintain electrical and mechanical compatibility while offering alternatives in power dissipation capacity and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

F20J150E Selection Criteria: The F20J150E is electrically and mechanically equivalent to the F20J150, maintaining identical resistance, tolerance, power rating, and thermal characteristics. The primary distinction is ROHS3 compliance certification. The F20J150E features an extended length of 2.000" compared to the main part's 0.750", which may affect board layout compatibility. Selection of F20J150E is appropriate for applications requiring RoHS3 compliance or when extended physical dimensions are acceptable within the design envelope.

F10J150 Selection Criteria: The F10J150 is electrically equivalent to the F20J150 with identical resistance, tolerance, and thermal specifications. The power rating is reduced to 10W, making this substitute suitable only for applications where the maximum power dissipation requirement does not exceed 10W. Physical dimensions remain identical to the main part. The F10J150 maintains RoHS non-compliant status consistent with the F20J150.

Frequently Asked Questions (FAQ)

Q: Can F10J150 be used as a direct replacement for F20J150? A: The F10J150 is electrically compatible with identical resistance and tolerance values. However, it is rated for 10W maximum power dissipation compared to the F20J150's 20W rating. Use F10J150 only in applications where power dissipation does not exceed 10W.

Q: What is the primary difference between F20J150 and F20J150E? A: Both parts are rated for 20W with identical electrical specifications. The F20J150E is ROHS3 compliant, while the F20J150 is RoHS non-compliant. The F20J150E has a length of 2.000" versus 0.750" for the F20J150. Verify board layout compatibility before substitution.

Q: Are all three parts from the same manufacturer? A: Yes, all three parts—F20J150, F20J150E, and F10J150—are manufactured by Ohmite and belong to the Stackohm® 250 series.

Q: Do these parts have identical mounting characteristics? A: Yes, all three parts feature identical mounting specifications: Flange Braces with Right Angle configuration, Solder Lugs lead style, and Radial Flat Oval package type. Physical height and width are identical across all three parts.

Q: Which substitute should be selected for RoHS3 compliant applications? A: The F20J150E is the only substitute with ROHS3 compliance certification. Verify that the extended 2.000" length accommodates your board layout requirements.