Ohmite 20J300 Equivalent & Substitute Parts

Part Overview

The Ohmite 20J300 is a 300 Ohm, 5% tolerance, 10W through-hole axial wirewound resistor with flame retardant coating and safety features. This component is classified as Active product status with 898 pieces currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity for applications requiring this specific resistance value and power rating.

Substiute Parts

20J300

OhmiteIn Stock: 100420J300 Datasheet

Current PartRFQ

20J300E

OhmiteIn Stock: 75920J300E Datasheet

Parametric EquivalentRFQ

20J300E

OhmiteIn Stock: 75920J300E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Ohmite 20J300 are identified based on matching the following critical parameters: resistance value (300 Ohms), tolerance (±5%), power rating (10W), composition (Wirewound), package type (Axial), physical dimensions (0.394" Dia x 1.858" L), temperature coefficient (±30ppm/°C), and termination count (2). The substitute part 20J300E maintains identical electrical and mechanical specifications, with differences limited to packaging format (Bulk versus standard packaging) and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 20J300 and 20J300E are Active status components manufactured by Ohmite with identical electrical and mechanical specifications. The primary distinction is compliance certification: the 20J300E is RoHS Compliant with MSL rating 1 (Unlimited), while the 20J300 is RoHS non-compliant. Selection between these parts depends on application compliance requirements. For applications requiring RoHS compliance, the 20J300E is the appropriate selection. For applications without RoHS compliance mandates, either part is functionally equivalent. Both parts carry EAR99 export classification and are suitable for through-hole PCB assembly in axial orientation.

Frequently Asked Questions (FAQ)

Q: Are the 20J300 and 20J300E electrically identical? A: Yes. Both parts have identical resistance (300 Ohms), tolerance (±5%), power rating (10W), temperature coefficient (±30ppm/°C), and composition (Wirewound). They are direct functional equivalents.

Q: What is the difference between the 20J300 and 20J300E? A: The primary differences are packaging format (Standard versus Bulk) and compliance certifications. The 20J300E is RoHS Compliant with MSL 1 rating, while the 20J300 is RoHS non-compliant.

Q: Can I use 20J300E as a substitute for 20J300 in my design? A: Yes, provided your application does not have specific compliance restrictions. The 20J300E offers improved compliance status (RoHS Compliant) and is therefore suitable for most applications requiring this resistance and power rating.

Q: Are the physical dimensions identical? A: Yes. Both parts have identical axial package dimensions of 0.394" Dia x 1.858" L (10.00mm x 47.20mm), ensuring identical PCB footprint and mounting compatibility.

Q: What packaging options are available? A: The 20J300 is available in standard packaging, while the 20J300E is available in Bulk packaging. Bulk packaging is typically used for high-volume procurement.

Q: Are there any temperature or environmental differences? A: Both parts have identical temperature coefficient (±30ppm/°C) and identical flame retardant coating with safety features. The 20J300E has defined MSL 1 (Unlimited) rating, while the 20J300 lists MSL as Not Applicable.