Equivalent & Substitute Parts for 850F10K

Part Overview

The 850F10K is a 10 kOhms ±1% 50W wirewound chassis mount resistor manufactured by Ohmite, part of the Metal-Mite®89 series. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system maintenance and new design implementations. The 850F10K serves applications requiring high-power dissipation with tight tolerance specifications in industrial and aerospace environments.

Substiute Parts

850F10K

OhmiteIn Stock: 730850F10K Datasheet

Current PartRFQ

850F10KE

ARCOLIn Stock: 1595850F10KE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 850F10K is determined by strict equivalence across the following critical parameters:

• Resistance Value: 10 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 50W (exact match required)
• Composition: Wirewound (exact match required)
• Temperature Coefficient: ±20ppm/°C (exact match required)
• Housing Type: Aluminum (exact match required)
• Mounting Feature: Flanges (exact match required)
• Lead Style: Solder Lugs (exact match required)
• Package Type: Axial, Box (exact match required)

The 850F10KE, manufactured by ARCOL, meets all substitution criteria as a direct functional equivalent within the Metal-Mite®89 series.

Parameter Comparison

Engineering Selection Recommendations

The 850F10KE serves as the direct functional substitute for the obsolete 850F10K. Both components are electrically and mechanically equivalent across all critical parameters. The 850F10KE offers the additional advantage of active product status, ensuring continued availability and supply chain reliability.

The 850F10KE achieves RoHS compliance, whereas the 850F10K is RoHS non-compliant. For applications subject to RoHS regulatory requirements, the 850F10KE is the appropriate selection. Dimensional variations between the two parts are minimal (approximately 0.25mm in length and 0.037" in height), and both maintain identical flange-mounted solder lug configurations suitable for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can the 850F10KE directly replace the 850F10K in existing designs?

A: Yes. The 850F10KE is electrically and mechanically equivalent to the 850F10K across all specified parameters, including resistance, tolerance, power rating, temperature coefficient, and mounting configuration. Dimensional differences are negligible for standard PCB layouts.

Q: What is the significance of the 850F10K being obsolete?

A: Obsolete status indicates that the 850F10K is no longer manufactured or supported by Ohmite. The 850F10KE, maintained in active production by ARCOL, provides continuity for applications requiring this component specification.

Q: Are there compliance differences between the two parts?

A: The 850F10KE is RoHS compliant, while the 850F10K is RoHS non-compliant. For applications requiring RoHS certification, the 850F10KE is the mandated selection.

Q: Do the dimensional differences affect PCB layout compatibility?

A: The dimensional variations (0.25mm in length, 0.037" in height) are within standard PCB tolerance ranges. Both components use identical flange-mounted solder lug configurations and are compatible with existing board designs.

Q: What is the inventory status for these parts?

A: The 850F10K has 677 pieces in stock. The 850F10KE has 1514 pieces in stock, providing superior supply availability.