Ohmite 43J50R Equivalent & Substitute Parts

Part Overview

The Ohmite 43J50R is a 50 Ohm, 3W axial wirewound through-hole resistor from the Ohmicone® 40 series. This component is designed for applications requiring precision resistive elements with moderate power dissipation in compact axial form factor. The part maintains Active product status with 915 units currently in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required due to inventory constraints, packaging preferences, or supply chain considerations.

Substiute Parts

43J50R

OhmiteIn Stock: 101843J50R Datasheet

Current PartRFQ

43J50RE

OhmiteIn Stock: 112143J50RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 43J50R are identified based on strict electrical and mechanical parameter equivalence. The primary substitution criterion is the Ohmite 43J50RE, which maintains identical electrical specifications: 50 Ohm resistance, ±5% tolerance, 3W power rating, wirewound composition, and ±20ppm/°C temperature coefficient. Both parts share the same axial package configuration and physical dimensions (0.220" Dia x 0.594" L). The key differentiator between the main part and substitute is packaging format: the 43J50R is supplied in standard packaging, while the 43J50RE is supplied in bulk packaging. This distinction allows for flexibility in procurement quantities without altering circuit performance or mechanical fit.

Parameter Comparison

Engineering Selection Recommendations

Both the 43J50R and 43J50RE are Active products from Ohmite's Ohmicone® 40 series with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs. The 43J50RE offers ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements. The 43J50R, while RoHS non-compliant, remains available for legacy systems or applications without RoHS restrictions. Both parts share identical REACH and ECCN classifications. Packaging format differs: standard packaging for 43J50R versus bulk packaging for 43J50RE. Inventory availability is comparable, with 915 units of 43J50R and 1106 units of 43J50RE in stock.

Frequently Asked Questions (FAQ)

Q: Can the 43J50RE be used as a direct replacement for the 43J50R in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching 50 Ohm resistance, ±5% tolerance, 3W power rating, wirewound composition, and axial package dimensions. The 43J50RE is a direct substitute from an electrical and mechanical standpoint.

Q: What is the difference between the 43J50R and 43J50RE?

A: The primary differences are packaging format (standard versus bulk) and RoHS compliance status. The 43J50R is RoHS non-compliant, while the 43J50RE is ROHS3 compliant. All electrical and mechanical parameters are identical.

Q: Which part should I select for a new design?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, specify the 43J50RE. For applications without RoHS restrictions, either part is suitable based on packaging and inventory requirements.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 43J50R and 43J50RE share identical axial package dimensions of 0.220" Dia x 0.594" L (5.60mm x 15.10mm), ensuring identical PCB footprint and mechanical fit.

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

A: Both parts specify a temperature coefficient of ±20ppm/°C, indicating stable resistance performance across the operating temperature range.