Ohmite 85F150 Equivalent & Substitute Parts

Part Overview

The Ohmite 85F150 is a 150 Ohm ±1% 5W through-hole resistor with axial wirewound construction, part of the Acrasil® 80 series. This component is designed for applications requiring precision resistive elements with high power dissipation capability in a compact axial package. The part maintains active product status and is available in original stock inventory.

Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative packaging or compliance requirements necessitate component substitution.

Substiute Parts

85F150

OhmiteIn Stock: 101385F150 Datasheet

Current PartRFQ

45F150E

OhmiteIn Stock: 94345F150E Datasheet

Parametric EquivalentRFQ

RS005150R0FS73

Vishay DaleIn Stock: 2032RS005150R0FS73 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 85F150 is determined by strict equivalence across the following critical parameters:

• Resistance value: 150 Ohms
• Tolerance: ±1%
• Power rating: 5W
• Composition: Wirewound
• Temperature coefficient: ±20ppm/°C
• Package configuration: Axial through-hole
• Number of terminations: 2

All identified substitute parts meet these core electrical and mechanical specifications. Variations in physical dimensions, operating temperature range, RoHS compliance status, and packaging format are secondary considerations that do not affect functional equivalence for standard circuit applications.

Parameter Comparison

Engineering Selection Recommendations

All three components—Ohmite 85F150, Ohmite 45F150E, and Vishay Dale RS005150R0FS73—are functionally equivalent for applications requiring a 150 Ohm ±1% 5W axial wirewound resistor with ±20ppm/°C temperature coefficient.

Ohmite 45F150E is the primary parametric equivalent, manufactured by the same supplier as the original part. This component offers identical electrical specifications and physical dimensions. The 45F150E achieves RoHS Compliant status, which may be required for applications subject to RoHS regulations. Bulk packaging is suitable for high-volume production environments.

Vishay Dale RS005150R0FS73 provides an alternative from a different manufacturer with equivalent electrical performance. This part includes moisture-resistant construction and operates across a wider temperature range (-65°C ~ 250°C). Physical dimensions are slightly smaller (0.312" Dia x 0.875" L versus 0.343" Dia x 0.937" L), which may be advantageous in space-constrained layouts. Cut Tape packaging supports automated assembly processes.

Selection between these substitutes depends on procurement availability, compliance requirements, packaging format compatibility with assembly equipment, and physical space constraints within the target application.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite 45F150E be used as a direct replacement for the Ohmite 85F150?

A: Yes. Both components share identical electrical specifications (150 Ohms ±1%, 5W, ±20ppm/°C) and physical dimensions (0.343" Dia x 0.937" L). The 45F150E is a parametric equivalent suitable for direct substitution in circuit designs.

Q: What is the primary difference between the Ohmite 85F150 and the Vishay Dale RS005150R0FS73?

A: The primary differences are manufacturer origin and physical dimensions. The Vishay Dale part is slightly smaller (0.312" Dia x 0.875" L) and includes moisture-resistant construction. Electrical specifications remain equivalent. Physical dimensions must be verified against PCB layout constraints before substitution.

Q: Does the Vishay Dale RS005150R0FS73 fit the same PCB footprint as the Ohmite 85F150?

A: The Vishay Dale part has slightly smaller dimensions. While both are axial through-hole components with 2 terminations, the reduced diameter and length may affect mechanical fit. PCB layout verification is necessary to confirm compatibility with existing mounting holes and clearance requirements.

Q: Which substitute part should be selected for RoHS-compliant applications?

A: The Ohmite 45F150E carries RoHS Compliant certification. This part is the appropriate selection for applications subject to RoHS regulations or customer requirements mandating RoHS compliance.

Q: Are there operating temperature range differences between these parts?

A: Yes. The Ohmite 85F150 does not specify an operating temperature range. The Ohmite 45F150E operates from -55°C to 275°C, while the Vishay Dale RS005150R0FS73 operates from -65°C to 250°C. Application temperature requirements should be evaluated against these specifications.

Q: What packaging formats are available for these substitute parts?

A: The Ohmite 85F150 uses standard packaging. The Ohmite 45F150E is supplied in Bulk format, suitable for manual assembly or high-volume production. The Vishay Dale RS005150R0FS73 is supplied in Cut Tape (CT) format, optimized for automated pick-and-place assembly equipment.