810F5K0 Equivalent & Substitute Parts

Part Overview

The Ohmite 810F5K0 is a 5 kOhms ±1% 10W wirewound chassis mount resistor from the Metal-Mite®89 series. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part features aluminum housing with flanged mounting and solder lug termination, suitable for applications requiring precision wirewound resistive elements in compact form factors.

Substiute Parts

810F5K0

OhmiteIn Stock: 829810F5K0 Datasheet

Current PartRFQ

810F5K0E

OhmiteIn Stock: 892810F5K0E Datasheet

DirectRFQ

KAL10FB5K00

Stackpole Electronics IncIn Stock: 977KAL10FB5K00 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 810F5K0 are qualified based on the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Resistance value: 5 kOhms
• Tolerance: ±1%
• Composition: Wirewound
• Temperature Coefficient: ±20ppm/°C
• Housing Type: Aluminum
• Mounting Feature: Flanges
• Lead Style: Solder Lugs
• Package Type: Axial, Box

Allowable Variations:

• Power rating: Equal to or greater than 10W
• Operating temperature range: Equal to or exceeding -55°C ~ 275°C
• Physical dimensions: Minor variations acceptable within standard chassis mount resistor envelope
• RoHS compliance: May differ from original part
• Packaging format: Bulk acceptable as substitute for original packaging

Two substitute parts meet these criteria: the Ohmite 810F5K0E and the Stackpole Electronics KAL10FB5K00.

Parameter Comparison

Engineering Selection Recommendations

810F5K0E (Ohmite): This part is the direct manufacturer equivalent from Ohmite, maintaining identical electrical specifications and the same 10W power rating. It carries active product status and RoHS compliance, making it suitable for new designs and production environments with regulatory requirements. Physical dimensions show minor variation (0.783" L x 0.827" W versus 0.750" L x 0.812" W), which remains within standard chassis mount resistor tolerances.

KAL10FB5K00 (Stackpole Electronics): This substitute provides identical electrical performance with an increased 12.5W power rating, offering additional thermal margin. It maintains the same operating temperature range and includes moisture-resistant features. ROHS3 compliance and active product status support long-term availability. Physical dimensions closely match the original part (0.750" L x 0.800" W), minimizing layout modifications.

Frequently Asked Questions (FAQ)

Q: Can the 810F5K0E directly replace the 810F5K0 in existing designs?

A: Yes. The 810F5K0E maintains identical electrical specifications (5 kOhms ±1%, 10W, ±20ppm/°C) and mechanical mounting features. Minor dimensional variations fall within acceptable tolerances for chassis mount resistor applications.

Q: What is the advantage of using KAL10FB5K00 over 810F5K0E?

A: The KAL10FB5K00 provides a higher power rating (12.5W versus 10W), offering increased thermal headroom in applications approaching the original 10W limit. It also includes moisture-resistant features and maintains identical electrical performance.

Q: Are there any compliance differences between the substitutes?

A: The original 810F5K0 is RoHS non-compliant. Both substitutes are RoHS compliant (810F5K0E is RoHS Compliant; KAL10FB5K00 is ROHS3 Compliant), supporting regulatory requirements in modern applications.

Q: Do physical dimension differences affect PCB layout?

A: The 810F5K0E shows minor dimensional variation (approximately 0.033" longer and 0.015" wider). The KAL10FB5K00 dimensions closely match the original. Verify mounting hole spacing and clearances in your specific application before implementation.

Q: What is the operating temperature range for the 810F5K0E?

A: The operating temperature range for 810F5K0E is not specified in available documentation. The original 810F5K0 and KAL10FB5K00 both operate across -55°C ~ 275°C. Confirm temperature requirements with the manufacturer if this specification is critical for your application.

Q: Can these parts be used interchangeably in high-reliability applications?

A: All three parts share identical electrical specifications and wirewound composition. Selection should be based on product status (active versus obsolete), compliance certifications, and thermal margin requirements specific to your application.