Equivalent & Substitute Parts for 805F5K0

Part Overview

The 805F5K0 is a 5 kOhms ±1% 5W wirewound chassis mount resistor manufactured by Ohmite, part of the Metal-Mite®89 series. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing system maintenance and new design implementations. The resistor features aluminum housing with flanged mounting and solder lug termination, designed for applications requiring precision resistance values with moderate power dissipation in compact form factors.

Substiute Parts

805F5K0

OhmiteIn Stock: 1112805F5K0 Datasheet

Current PartRFQ

805F5K0E

OhmiteIn Stock: 1033805F5K0E Datasheet

DirectRFQ

KAL10FB5K00

Stackpole Electronics IncIn Stock: 977KAL10FB5K00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 805F5K0 are qualified based on the following electrical and mechanical parameters:

Core Electrical Parameters (Must Match):

• Resistance value: 5 kOhms
• Tolerance: ±1%
• Composition: Wirewound
• Temperature Coefficient: ±20ppm/°C

Mechanical Parameters (Must Match or Exceed):

• Mounting Feature: Flanges
• Lead Style: Solder Lugs
• Housing Type: Aluminum
• Package Type: Axial, Box

Power Rating Consideration: Substitute parts may have equal or higher power ratings. A higher power rating does not disqualify a part from substitution, as it maintains or improves thermal performance characteristics.

Operating Temperature Range: Substitute parts must support the operating temperature range of -55°C ~ 275°C or demonstrate equivalent thermal capability.

Parameter Comparison

Engineering Selection Recommendations

805F5K0E (Ohmite): This direct manufacturer substitute maintains identical electrical specifications and mechanical form factor as the 805F5K0. The primary distinction is product status transition from obsolete to active, coupled with RoHS compliance certification. Physical dimensions show minor variation (0.626" L x 0.650" W versus 0.600" L x 0.646" W), which remains within typical PCB layout tolerances for flanged chassis mount resistors. This option is suitable for direct replacement in existing designs where RoHS compliance is required.

KAL10FB5K00 (Stackpole Electronics Inc): This substitute provides equivalent electrical performance with increased power rating (12.5W versus 5W). The KAL series resistor maintains all core electrical parameters and mechanical mounting requirements. Physical dimensions are larger (0.750" L x 0.800" W), reflecting the higher power capability. This option is appropriate for applications requiring thermal margin improvement or where component consolidation across multiple power ratings is beneficial. ROHS3 compliance and moisture-resistant features provide additional environmental protection.

Frequently Asked Questions (FAQ)

Q: Can 805F5K0E be used as a direct replacement for 805F5K0?

A: Yes. The 805F5K0E maintains identical resistance, tolerance, power rating, temperature coefficient, and mechanical mounting configuration. Minor dimensional variations do not affect functional compatibility in standard chassis mount applications.

Q: What is the primary advantage of KAL10FB5K00 over 805F5K0E?

A: The KAL10FB5K00 provides 12.5W power rating compared to 5W, offering improved thermal performance and operational margin. This higher rating does not compromise electrical accuracy and may be beneficial in applications with elevated ambient temperatures or thermal stress conditions.

Q: Are there dimensional constraints when substituting with KAL10FB5K00?

A: The KAL10FB5K00 has larger physical dimensions (0.750" L x 0.800" W x 0.421" H) compared to the 805F5K0 (0.600" L x 0.646" W x 0.330" H). PCB layout and enclosure space must accommodate these increased dimensions. Flanged mounting and solder lug termination remain compatible with standard chassis mount applications.

Q: What is the significance of RoHS compliance in substitute selection?

A: The 805F5K0 is RoHS non-compliant, while both 805F5K0E and KAL10FB5K00 are RoHS compliant. For applications subject to RoHS regulations or customer requirements, either substitute part satisfies compliance mandates.

Q: Do substitute parts maintain the same temperature coefficient?

A: Yes. All three parts (805F5K0, 805F5K0E, and KAL10FB5K00) specify ±20ppm/°C temperature coefficient, ensuring consistent resistance stability across the operating temperature range.

Q: Can KAL10FB5K00 be used in space-constrained applications?

A: The KAL10FB5K00 requires additional board space due to larger dimensions. If space constraints are critical, 805F5K0E is the preferred substitute, as it maintains the original form factor while providing active product status and RoHS compliance.