Equivalent & Substitute Parts for 85F15R

Part Overview

The 85F15R is a 5W, 15 Ohms ±1% through-hole axial wirewound resistor manufactured by Ohmite, part of the Acrasil® 80 series. This component is designed for applications requiring precision resistive elements with moderate power dissipation in a compact axial package. The part is currently active in production with 861 units in stock. Substitute parts are identified when equivalent electrical and mechanical parameters are maintained, allowing for design flexibility, supply chain optimization, or packaging preference changes.

Substiute Parts

85F15R

OhmiteIn Stock: 93785F15R Datasheet

Current PartRFQ

45F15RE

OhmiteIn Stock: 140045F15RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 85F15R is determined by strict equivalence across the following critical parameters:

• Resistance value: 15 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 5W (exact match required)
• Composition: Wirewound (exact match required)
• Temperature coefficient: ±20ppm/°C (exact match required)
• Package configuration: Axial through-hole (exact match required)
• Physical dimensions: 0.343" Dia x 0.937" L / 8.70mm x 23.80mm (exact match required)
• Number of terminations: 2 (exact match required)

The 45F15RE meets all substitution criteria as a parametric equivalent. Both parts share identical electrical specifications and mechanical form factors, differing only in series designation (Ohmicone® 40 versus Acrasil® 80), packaging format (Bulk versus Box), and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 85F15R and 45F15RE are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

The 45F15RE offers ROHS3 compliance and REACH unaffected status, making it suitable for applications subject to environmental regulations. The 85F15R is RoHS non-compliant and should be selected only when regulatory compliance is not a design requirement.

Packaging format differs between the two parts: the 85F15R is supplied in Box format, while the 45F15RE is supplied in Bulk format. This distinction may influence procurement decisions based on quantity requirements and inventory management practices.

Both parts carry the same ECCN (EAR99) and HTSUS (8533.21.0080) classifications, indicating equivalent export and tariff treatment.

Frequently Asked Questions (FAQ)

Q: Can the 45F15RE be used as a direct replacement for the 85F15R in existing designs?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values (15 Ohms ±1%), power ratings (5W), temperature coefficients (±20ppm/°C), and axial package dimensions (0.343" Dia x 0.937" L). They are pin-compatible and functionally interchangeable in circuit applications.

Q: What is the primary difference between these two parts?

A: The parts differ in series designation (Acrasil® 80 versus Ohmicone® 40), packaging format (Box versus Bulk), and compliance certifications. The 45F15RE is ROHS3 compliant and REACH unaffected, while the 85F15R is RoHS non-compliant.

Q: Does the series designation affect performance or compatibility?

A: No. Series designation reflects Ohmite's product line organization but does not impact electrical performance, mechanical fit, or functional compatibility. Both series maintain identical specifications for resistance, tolerance, power rating, and temperature coefficient.

Q: Are there any dimensional differences between the two parts?

A: No. Both parts share identical physical dimensions of 0.343" Dia x 0.937" L (8.70mm x 23.80mm) and are housed in the same axial through-hole package configuration with two terminations.

Q: Which part should be selected for new designs?

A: Selection depends on regulatory and compliance requirements. For applications requiring RoHS3 compliance or REACH compliance documentation, the 45F15RE is the appropriate choice. For applications without such requirements, either part may be selected based on availability and packaging preference.

Q: Does packaging format (Box versus Bulk) affect the component itself?

A: No. Packaging format refers only to the quantity and presentation method for procurement and does not affect the electrical or mechanical properties of the resistor itself.