81F10R Equivalent & Substitute Parts

Part Overview

The 81F10R is a 10 Ohm ±1% 1W axial wirewound through-hole resistor manufactured by Ohmite, part of the Acrasil® 80 series. This component is currently active in production with 977 pieces in stock. Wirewound resistors of this specification are used in applications requiring precise resistance values with low temperature coefficients and reliable power dissipation in through-hole configurations. Substitute parts may be required due to supply chain availability, packaging preferences, or compliance requirements specific to end-use applications.

Substiute Parts

81F10R

OhmiteIn Stock: 108781F10R Datasheet

Current PartRFQ

41F10RE

OhmiteIn Stock: 111641F10RE Datasheet

Parametric EquivalentRFQ

41F10R

OhmiteIn Stock: 70041F10R Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 81F10R are qualified based on matching the following critical parameters: resistance value (10 Ohms), tolerance (±1%), power rating (1W), composition (wirewound), package type (axial), temperature coefficient (±20ppm/°C), and physical dimensions (0.126" Dia x 0.437" L). All identified substitutes maintain identical electrical and mechanical specifications, ensuring direct functional equivalence in circuit applications. The substitute parts differ in series designation, packaging format, RoHS compliance status, and inventory availability.

Parameter Comparison

Engineering Selection Recommendations

All three parts—81F10R, 41F10RE, and 41F10R—are electrically and mechanically equivalent and suitable for direct substitution in applications requiring a 10 Ohm ±1% 1W axial wirewound resistor.

The 41F10RE offers the advantage of RoHS compliance and is available in bulk packaging, making it suitable for applications subject to RoHS regulations or high-volume procurement requirements.

The 41F10R, part of the Ohmicone® 40 series, provides an alternative from the same manufacturer with equivalent specifications but does not carry RoHS compliance.

The 81F10R, from the Acrasil® 80 series, remains the primary specification with the highest current inventory level.

Selection should be based on compliance requirements, packaging preferences, and supply chain considerations specific to the application.

Frequently Asked Questions (FAQ)

Q: Can 41F10RE be used as a direct replacement for 81F10R? A: Yes. Both parts share identical electrical specifications (10 Ohms ±1%, 1W, ±20ppm/°C) and mechanical dimensions (0.126" Dia x 0.437" L). The primary difference is RoHS compliance status and packaging format. Direct substitution is functionally valid.

Q: What is the difference between 41F10R and 41F10RE? A: Both parts are from Ohmite's 40 series with identical electrical and mechanical specifications. The 41F10RE is RoHS compliant and available in bulk packaging, while 41F10R is RoHS non-compliant. Electrical performance is equivalent.

Q: Are there operating temperature differences between these parts? A: The 81F10R and 41F10R do not specify operating temperature ranges in the provided data. The 41F10RE specifies an operating range of -55°C to 275°C. All three parts share the same temperature coefficient of ±20ppm/°C.

Q: Does packaging format affect electrical performance? A: No. Packaging format (bulk versus standard) does not affect electrical or mechanical performance. Selection should be based on procurement and assembly requirements.

Q: Which part should be selected for RoHS-compliant applications? A: The 41F10RE is the only part with confirmed RoHS compliance status and is the appropriate selection for applications requiring RoHS compliance.