Ohmite 85F100 Equivalent & Substitute Parts

Part Overview

The Ohmite 85F100 is a 100 Ohms ±1% 5W through-hole resistor with axial wirewound composition, part of the Acrasil® 80 series. This component is currently active in production and available in box packaging with 719 units in stock. Alternative equivalent parts may be required due to packaging preferences, compliance requirements, or supply chain considerations.

Substiute Parts

85F100

OhmiteIn Stock: 75485F100 Datasheet

Current PartRFQ

RS005100R0FS73

Vishay DaleIn Stock: 1510RS005100R0FS73 Datasheet

SimilarRFQ

45F100E

OhmiteIn Stock: 177045F100E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Ohmite 85F100 is determined by matching the following critical parameters: resistance value (100 Ohms), tolerance (±1%), power rating (5W), composition (wirewound), package type (axial), and temperature coefficient (±20ppm/°C). All identified substitutes maintain these core electrical and mechanical specifications, ensuring functional equivalence in circuit applications.

The substitute parts are grouped as follows:

Similar Manufacturer Part (Vishay Dale RS005100R0FS73): Meets all core electrical parameters with identical resistance, tolerance, power rating, and temperature coefficient. Differs in packaging format (cut tape versus box) and includes moisture-resistant features. Operating temperature range is specified (-65°C ~ 250°C).

Parametric Equivalent (Ohmite 45F100E): Maintains identical electrical specifications and physical dimensions as the main part. Differs in series designation (Ohmicone® 40 versus Acrasil® 80), packaging format (bulk versus box), and RoHS compliance status (ROHS3 compliant versus non-compliant).

Parameter Comparison

Engineering Selection Recommendations

Ohmite 45F100E: Select this part when RoHS3 compliance is required. It maintains identical electrical performance and physical dimensions to the 85F100, with the primary distinction being regulatory compliance status. Both parts are from the same manufacturer and remain in active production.

Vishay Dale RS005100R0FS73: Select this part when moisture-resistant characteristics are beneficial for the application environment. This substitute meets all core electrical specifications and is available in higher inventory quantity (1484 units). Physical dimensions are slightly smaller (0.312" diameter versus 0.343"), which may be advantageous in space-constrained layouts. Operating temperature range is explicitly specified at -65°C ~ 250°C.

All three parts are active products with current production status and meet the core functional requirements for 100 Ohms ±1% 5W axial wirewound resistor applications.

Frequently Asked Questions (FAQ)

Q: Can the Vishay Dale RS005100R0FS73 be used as a direct replacement for the Ohmite 85F100?

A: Yes, the RS005100R0FS73 is electrically equivalent with matching resistance, tolerance, power rating, and temperature coefficient. Physical dimensions are slightly smaller (0.312" diameter versus 0.343"), which may affect board layout in space-constrained designs but does not impact electrical function.

Q: What is the difference between the 85F100 and 45F100E?

A: Both parts are manufactured by Ohmite with identical electrical specifications and physical dimensions. The primary difference is RoHS compliance status: the 45F100E is ROHS3 compliant while the 85F100 is RoHS non-compliant. Series designation also differs (Ohmicone® 40 versus Acrasil® 80).

Q: Are all three parts suitable for high-temperature applications?

A: The Vishay Dale RS005100R0FS73 specifies an operating temperature range of -65°C ~ 250°C. Operating temperature ranges are not specified for the Ohmite parts (85F100 and 45F100E) in the provided data. Temperature coefficient is ±20ppm/°C for all three parts.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (box, cut tape, or bulk) does not affect electrical performance. Selection should be based on procurement and assembly requirements.

Q: Are moisture-resistant features necessary for standard applications?

A: The Vishay Dale RS005100R0FS73 includes moisture-resistant features. For standard indoor applications with controlled humidity, this feature may not be required. For applications exposed to moisture or high humidity environments, the moisture-resistant option provides additional protection.