Ohmite 45F7R5 Equivalent & Substitute Parts

Part Overview

The Ohmite 45F7R5 is a 7.5 Ohms ±1% 5W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production with 1145 pieces in stock. Finding equivalent and substitute parts may be necessary due to supply chain considerations, packaging preferences, or compliance requirements specific to end-use applications.

Substiute Parts

45F7R5

OhmiteIn Stock: 117945F7R5 Datasheet

Current PartRFQ

45F7R5E

OhmiteIn Stock: 117445F7R5E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Ohmite 45F7R5 is based on electrical and mechanical parameter equivalence. The substitute part 45F7R5E maintains identical electrical specifications: 7.5 Ohms resistance, ±1% tolerance, 5W power rating, wirewound composition, and ±50ppm/°C temperature coefficient. Both parts share the same axial package configuration and physical dimensions (0.343" Dia x 0.937" L). The primary distinction between these parts is packaging format: the main part number uses standard packaging, while the 45F7R5E variant is supplied in bulk packaging. Both parts are manufactured by Ohmite and belong to the Ohmicone® 40 series.

Parameter Comparison

Engineering Selection Recommendations

The 45F7R5E serves as a direct electrical and mechanical substitute for the 45F7R5. Selection between these parts should be based on specific application requirements:

The 45F7R5E offers ROHS3 compliance, making it suitable for applications subject to RoHS3 regulatory requirements. The 45F7R5 is RoHS non-compliant and should be selected only when RoHS compliance is not a requirement.

Both parts are REACH Unaffected and classified under ECCN EAR99, with identical HTSUS coding (8533.21.0080). Packaging format differs: standard packaging for 45F7R5 versus bulk packaging for 45F7R5E. This distinction may influence procurement decisions based on volume requirements and inventory management practices.

Frequently Asked Questions (FAQ)

Q: Are the 45F7R5 and 45F7R5E electrically identical?

A: Yes. Both parts have identical electrical specifications: 7.5 Ohms resistance, ±1% tolerance, 5W power rating, wirewound construction, and ±50ppm/°C temperature coefficient.

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 45F7R5E is ROHS3 compliant, while the 45F7R5 is RoHS non-compliant.

Q: Are the physical dimensions identical?

A: Yes. Both parts share identical axial package dimensions: 0.343" Dia x 0.937" L (8.70mm x 23.80mm).

Q: Can I use 45F7R5E as a direct replacement for 45F7R5?

A: Yes, from an electrical and mechanical standpoint. Verify that RoHS3 compliance requirements align with your application specifications.

Q: What does bulk packaging mean for the 45F7R5E?

A: Bulk packaging indicates the component is supplied in larger quantities without individual packaging, typically used for high-volume manufacturing operations.

Q: Are both parts currently in production?

A: Yes. Both the 45F7R5 and 45F7R5E are active products with current inventory availability.