Ohmite F20J2K0 Equivalent & Substitute Parts

Part Overview

The Ohmite F20J2K0 is a 2 kOhms ±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 852 units in stock. Substitute parts are identified when inventory constraints, packaging requirements, or compliance specifications necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

F20J2K0

OhmiteIn Stock: 862F20J2K0 Datasheet

Current PartRFQ

F20J2K0E

OhmiteIn Stock: 1104F20J2K0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The F20J2K0E qualifies as a parametric equivalent based on the following critical substitution criteria:

• Identical resistance value: 2 kOhms
• Matching tolerance: ±5%
• Equivalent power rating: 20W
• Same composition: Wirewound
• Identical temperature coefficient: ±260ppm/°C
• Matching operating temperature range: -55°C to 350°C
• Same coating type: Vitreous Enamel Coated
• Identical mounting feature: Flange Braces, Right Angle
• Same lead style: Solder Lugs
• Compatible package type: Radial, Flat Oval

The primary difference between these parts is physical length and packaging format, which does not affect electrical performance or core mechanical compatibility in standard chassis mount applications.

Parameter Comparison

Engineering Selection Recommendations

Both the F20J2K0 and F20J2K0E are active production components from Ohmite's Stackohm® 250 series with identical electrical specifications. Selection between these parts should be based on the following factors:

The F20J2K0E offers ROHS3 compliance, making it suitable for applications subject to RoHS regulations. The F20J2K0 is RoHS non-compliant and should be selected only when regulatory exemptions apply or legacy system requirements mandate non-compliant components.

Physical dimensions differ: the F20J2K0 measures 0.750" in length, while the F20J2K0E measures 2.000" in length. Both maintain identical width and height dimensions. PCB layout and chassis clearance requirements must accommodate the longer F20J2K0E if substitution is considered.

Packaging format differs between standard and bulk options. The F20J2K0E is supplied in bulk packaging, which may affect procurement workflows and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Can F20J2K0E replace F20J2K0 in all applications?

A: Electrical substitution is valid based on identical resistance, tolerance, power rating, temperature coefficient, and operating temperature range. Physical length difference (0.750" versus 2.000") requires verification of available PCB or chassis space before implementation.

Q: What is the significance of the RoHS compliance difference?

A: The F20J2K0E is ROHS3 compliant, meeting current environmental regulations for restricted substances. The F20J2K0 is non-compliant. Selection depends on regulatory requirements applicable to the end application and target markets.

Q: Are the mounting features identical?

A: Yes. Both parts feature flange braces with right-angle mounting and solder lugs as the lead style. Mounting compatibility is maintained between the two parts.

Q: Does the longer length of F20J2K0E affect electrical performance?

A: No. The extended length does not alter resistance value, tolerance, power rating, temperature coefficient, or operating temperature range. Length difference is a physical characteristic only and does not impact electrical behavior.

Q: What packaging considerations apply to the F20J2K0E?

A: The F20J2K0E is supplied in bulk packaging format, which may differ from standard packaging of the F20J2K0. Procurement and handling procedures should account for bulk packaging specifications.