Ohmite 83F1R0 Equivalent & Substitute Parts

Part Overview

The Ohmite 83F1R0 is a 1 Ohms ±1% 3W through hole resistor featuring axial wirewound construction from the Acrasil® 80 series. This component is currently active in production with 1086 pieces available in new original stock. Equivalent and substitute parts are identified to provide procurement flexibility, support supply chain continuity, and accommodate specific packaging or operational requirements in applications requiring precision wirewound resistors with identical electrical specifications.

Substiute Parts

83F1R0

OhmiteIn Stock: 115183F1R0 Datasheet

Current PartRFQ

RS02B1R000FS70

Vishay DaleIn Stock: 1906RS02B1R000FS70 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the Ohmite 83F1R0 are qualified based on the following critical parameters that determine functional equivalence:

• Resistance value: 1 Ohms
• Tolerance: ±1%
• Power rating: 3W
• Composition: Wirewound
• Package configuration: Axial through hole
• Temperature coefficient: ±50ppm/°C
• Termination count: 2

The Vishay Dale RS02B1R000FS70 meets all core electrical and mechanical requirements for direct substitution. Differences in physical dimensions, packaging format (Tape & Reel versus Box), and moisture resistance features do not affect functional equivalence when electrical specifications are identical.

Parameter Comparison

Engineering Selection Recommendations

Both the Ohmite 83F1R0 and Vishay Dale RS02B1R000FS70 are active production components with identical core electrical specifications: 1 Ohms resistance, ±1% tolerance, 3W power rating, and ±50ppm/°C temperature coefficient. Both are RoHS non-compliant and feature axial wirewound construction with two terminations.

Selection between these parts should be based on:

• Packaging requirements: The Ohmite 83F1R0 is supplied in Box format, while the Vishay Dale RS02B1R000FS70 is supplied in Tape & Reel format for automated assembly processes.
• Physical dimensions: The Vishay Dale part is slightly smaller (0.187" diameter versus 0.217" diameter), which may be relevant for space-constrained applications.
• Environmental performance: The Vishay Dale RS02B1R000FS70 includes moisture-resistant construction and specifies an operating temperature range of -65°C to 250°C, providing additional environmental protection.
• Inventory availability: The Vishay Dale part has higher stock availability (1820 pieces versus 1086 pieces).

Frequently Asked Questions (FAQ)

Q: Can the Vishay Dale RS02B1R000FS70 be used as a direct replacement for the Ohmite 83F1R0?

A: Yes. Both components share identical electrical specifications: 1 Ohms resistance, ±1% tolerance, 3W power rating, ±50ppm/°C temperature coefficient, and axial wirewound construction. Functional equivalence is established through these matching parameters.

Q: What are the physical dimension differences between these parts?

A: The Ohmite 83F1R0 measures 0.217" diameter by 0.594" length (5.50mm x 15.10mm). The Vishay Dale RS02B1R000FS70 measures 0.187" diameter by 0.560" length (4.75mm x 14.22mm). The Vishay Dale part is slightly smaller in both dimensions.

Q: Does the packaging format affect electrical performance?

A: No. The Ohmite 83F1R0 is supplied in Box packaging, while the Vishay Dale RS02B1R000FS70 is supplied in Tape & Reel format. Packaging format affects handling and assembly processes but does not alter electrical characteristics or performance.

Q: What is the significance of the moisture-resistant feature on the Vishay Dale part?

A: The Vishay Dale RS02B1R000FS70 includes moisture-resistant construction, which provides enhanced protection in humid or corrosive environments. The Ohmite 83F1R0 does not specify this feature. This difference is relevant only for applications with specific environmental exposure requirements.

Q: Are both parts RoHS compliant?

A: No. Both the Ohmite 83F1R0 and Vishay Dale RS02B1R000FS70 are RoHS non-compliant. If RoHS compliance is required for your application, alternative components must be sourced.

Q: What operating temperature range should be used for circuit design?

A: The Vishay Dale RS02B1R000FS70 specifies an operating temperature range of -65°C to 250°C. The Ohmite 83F1R0 does not provide an operating temperature specification in the available data. For applications requiring defined temperature performance, the Vishay Dale specification should be referenced.