Ohmite 41F450 Equivalent & Substitute Parts

Part Overview

The Ohmite 41F450 is a 450 Ohms ±1% 1W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production with 1125 units in stock. Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate different packaging or compliance requirements in manufacturing environments.

Substiute Parts

41F450

OhmiteIn Stock: 120041F450 Datasheet

Current PartRFQ

41F450E

OhmiteIn Stock: 100741F450E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 41F450 is based on electrical and mechanical parameter matching within the Ohmicone® 40 series. The substitute part 41F450E maintains identical electrical specifications: 450 Ohms resistance, ±1% tolerance, 1W power rating, wirewound composition, and ±20ppm/°C temperature coefficient. Both parts share the same axial package configuration and physical dimensions (0.126" Dia x 0.437" L). The primary distinction between these parts is packaging format and RoHS compliance status, which do not affect electrical or mechanical interchangeability in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 41F450 and 41F450E are active production components suitable for direct substitution in circuit designs requiring 450 Ohms ±1% 1W axial wirewound resistors. Selection between these parts should be based on compliance requirements and packaging needs. The 41F450E offers ROHS3 compliance, making it the appropriate choice for applications subject to RoHS regulations. The 41F450 remains available for applications where RoHS compliance is not mandated. Bulk packaging of the 41F450E may be advantageous for high-volume manufacturing operations, while standard packaging of the 41F450 suits lower-volume or mixed-component procurement scenarios.

Frequently Asked Questions (FAQ)

Q: Are the 41F450 and 41F450E electrically identical? A: Yes. Both parts have identical electrical specifications: 450 Ohms resistance, ±1% tolerance, 1W power rating, wirewound construction, and ±20ppm/°C temperature coefficient.

Q: Can the 41F450E replace the 41F450 in existing designs? A: Yes. The 41F450E is a direct substitute. Both parts share identical physical dimensions, axial package configuration, and electrical performance characteristics.

Q: What is the difference between these two part numbers? A: The primary differences are packaging format (standard versus bulk) and RoHS compliance status. The 41F450E is ROHS3 compliant, while the 41F450 is RoHS non-compliant. These differences do not affect electrical or mechanical interchangeability.

Q: Which part should I specify for new designs? A: Specify the 41F450E for new designs if RoHS compliance is required by your application or regulatory environment. Both parts are active and available for procurement.

Q: Are there any thermal or performance differences between these parts? A: No. Both parts have identical temperature coefficients (±20ppm/°C) and power ratings (1W), ensuring equivalent thermal and performance characteristics across operating conditions.