Equivalent & Substitute Parts for Ohmite 83F2R0

Part Overview

The Ohmite 83F2R0 is a 2 Ohms ±1% 3W through-hole resistor with axial wirewound construction, part of the Acrasil® 80 series. This component is actively manufactured and maintained in stock. Substitute parts are identified to provide alternative sourcing options when the primary part number is unavailable or when supply chain optimization is required.

Substiute Parts

83F2R0

OhmiteIn Stock: 68783F2R0 Datasheet

Current PartRFQ

43F2R0

OhmiteIn Stock: 87343F2R0 Datasheet

DirectRFQ

RS02B2R000FS70

Vishay DaleIn Stock: 2905RS02B2R000FS70 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 83F2R0 are qualified based on the following electrical and mechanical parameters:

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

All identified substitutes meet these core parameters and are therefore electrically and mechanically compatible with the 83F2R0 in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

All three parts—83F2R0, 43F2R0, and RS02B2R000FS70—are active products with identical electrical specifications. Selection between these parts should be based on:

• Availability and inventory levels
• Physical dimensions and PCB layout constraints
• Compliance requirements specific to the application
• Supplier preference and lead time

The RS02B2R000FS70 (Vishay Dale) includes moisture-resistant construction and operates across a wider temperature range (-65°C to 250°C) compared to the Ohmite variants. The 43F2R0 is part of the Ohmicone® 40 series, while the 83F2R0 belongs to the Acrasil® 80 series. Physical dimensions vary slightly across all three parts; verify PCB layout compatibility before substitution.

Frequently Asked Questions (FAQ)

Q: Can the 43F2R0 directly replace the 83F2R0?

A: Yes. Both parts share identical electrical specifications: 2 Ohms ±1%, 3W power rating, wirewound construction, ±50ppm/°C temperature coefficient, and axial package. Physical dimensions differ slightly (0.220" vs 0.217" diameter), so verify PCB layout clearance.

Q: Is the RS02B2R000FS70 a suitable substitute?

A: Yes. The RS02B2R000FS70 meets all electrical requirements and is electrically compatible. It features moisture-resistant construction and a wider operating temperature range (-65°C to 250°C). Physical dimensions are smaller (0.187" diameter x 0.560" length), which may be advantageous for space-constrained layouts.

Q: What are the key parameters that determine substitutability?

A: Resistance value (2 Ohms), tolerance (±1%), power rating (3W), composition (wirewound), package type (axial), temperature coefficient (±50ppm/°C), and termination count (2) must all match exactly for direct substitution.

Q: Are there any compliance differences between these parts?

A: All three parts are RoHS non-compliant. The RS02B2R000FS70 is REACH Affected, while the Ohmite parts (83F2R0 and 43F2R0) are REACH Unaffected. Verify compliance requirements for your specific application.

Q: What should I consider regarding physical dimensions?

A: The three parts have different diameters and lengths. The 83F2R0 measures 0.217" Dia x 0.594" L, the 43F2R0 measures 0.220" Dia x 0.594" L, and the RS02B2R000FS70 measures 0.187" Dia x 0.560" L. Confirm PCB layout compatibility, including lead spacing and component clearance, before substitution.