Ohmite 41J300 Equivalent & Substitute Parts

Part Overview

The Ohmite 41J300 is a 300 Ohms ±5% 1W through-hole resistor with axial wirewound composition, part of the Ohmicone® 40 series. This component is currently active in production and maintains 901 pieces in new original stock. The 41J300 is classified as RoHS non-compliant, which may necessitate identification of compliant alternatives for applications subject to RoHS regulations or procurement requirements mandating RoHS3 compliance.

Substiute Parts

41J300

OhmiteIn Stock: 100941J300 Datasheet

Current PartRFQ

41J300E

OhmiteIn Stock: 83341J300E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 41J300 is determined by strict equivalence across the following critical parameters:

• Resistance value: 300 Ohms
• Tolerance: ±5%
• Power rating: 1W
• Composition: Wirewound
• Package configuration: Axial
• Temperature coefficient: ±20ppm/°C
• Physical dimensions: 0.126" Dia x 0.437" L (3.20mm x 11.10mm)
• Termination count: 2

The 41J300E qualifies as a parametric equivalent substitute, matching all electrical and mechanical specifications. The primary distinction between these parts is packaging format and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The 41J300 and 41J300E are electrically and mechanically identical components from the same manufacturer and series. Selection between these parts should be based on the following criteria:

41J300 is appropriate for applications where RoHS compliance is not a requirement or where legacy component specifications are mandated.

41J300E is the required selection for applications subject to RoHS3 compliance requirements, EU procurement directives, or customer specifications mandating RoHS-compliant components. Both parts maintain active production status and adequate inventory levels.

Frequently Asked Questions (FAQ)

Q: Can the 41J300E be used as a direct replacement for the 41J300?

A: Yes. The 41J300E is a parametric equivalent with identical electrical characteristics (300 Ohms, ±5%, 1W), composition (wirewound), and physical dimensions (0.126" Dia x 0.437" L). The primary difference is RoHS3 compliance status and packaging format (bulk versus standard).

Q: What is the difference between the 41J300 and 41J300E packaging?

A: The 41J300 is supplied in standard packaging, while the 41J300E is supplied in bulk packaging. Both contain the same component with identical specifications.

Q: Which part should be selected for RoHS-compliant applications?

A: The 41J300E is ROHS3 compliant and must be used for applications requiring RoHS compliance. The 41J300 is RoHS non-compliant.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts measure 0.126" diameter by 0.437" length (3.20mm x 11.10mm) and are configured as axial through-hole components with two terminations.

Q: What is the temperature coefficient specification for these resistors?

A: Both the 41J300 and 41J300E have a temperature coefficient of ±20ppm/°C, indicating stable performance across the operating temperature range.