Ohmite 40F6K8 Equivalent & Substitute Parts

Part Overview

The Ohmite 40F6K8 is a 6.8 kOhms ±1% 10W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production and maintains 1085 pieces in new original stock. The part is classified as RoHS non-compliant under current standards. Identifying equivalent and substitute parts is necessary for applications requiring alternative packaging configurations, compliance certifications, or supply chain flexibility while maintaining identical electrical and mechanical performance.

Substiute Parts

40F6K8

OhmiteIn Stock: 119440F6K8 Datasheet

Current PartRFQ

40F6K8E

OhmiteIn Stock: 116040F6K8E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 40F6K8 is determined by strict equivalence across the following critical parameters:

• Resistance value: 6.8 kOhms
• Tolerance: ±1%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial
• Temperature coefficient: ±20ppm/°C
• Physical dimensions: 0.406" Dia x 1.902" L (10.30mm x 48.30mm)
• Termination count: 2

The substitute part 40F6K8E meets all electrical and mechanical requirements for direct substitution. The primary distinction between the main part and its substitute is packaging format and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

Both the 40F6K8 and 40F6K8E are active production components from Ohmite with identical electrical performance and mechanical form factors. Selection between these parts should be based on:

• Regulatory compliance requirements: The 40F6K8E provides ROHS3 compliance, while the 40F6K8 is RoHS non-compliant
• Packaging requirements: The 40F6K8E is supplied in bulk packaging, whereas the 40F6K8 uses standard packaging
• Supply chain considerations: Both parts maintain active inventory status with 1085 pieces available

For applications subject to RoHS3 regulations or requiring bulk packaging formats, the 40F6K8E is the appropriate selection. For applications without RoHS compliance mandates, either part provides equivalent performance.

Frequently Asked Questions (FAQ)

Q: Can the 40F6K8E replace the 40F6K8 in existing designs?

A: Yes. The 40F6K8E is a direct electrical and mechanical equivalent. Both components share identical resistance value, tolerance, power rating, wirewound composition, axial package configuration, temperature coefficient, and physical dimensions. The primary differences are packaging format and RoHS compliance status, which do not affect circuit performance.

Q: What is the difference between standard and bulk packaging?

A: Standard packaging (40F6K8) and bulk packaging (40F6K8E) refer to the quantity and presentation format for shipment. Both contain the same component with identical specifications. Bulk packaging is typically used for high-volume procurement or manufacturing environments.

Q: Does RoHS compliance affect component performance?

A: No. RoHS compliance relates to material composition and environmental regulations, not electrical or thermal performance. Both the RoHS non-compliant 40F6K8 and ROHS3 compliant 40F6K8E deliver identical circuit performance. Selection should be based on regulatory requirements applicable to the end application.

Q: Are there any thermal or reliability differences between these parts?

A: No. Both components share identical temperature coefficient (±20ppm/°C), power rating (10W), and series designation (Ohmicone® 40). Thermal and reliability characteristics are equivalent.

Q: What certifications apply to these parts?

A: Both parts are classified under ECCN EAR99 and HTSUS 8533.21.0080. The 40F6K8E carries ROHS3 compliance certification. Neither part is subject to moisture sensitivity requirements (MSL: Not Applicable). REACH status is unaffected for both components.