Ohmite 40F3K0E Equivalent & Substitute Parts

Part Overview

The Ohmite 40F3K0E is a 3 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 ROHS3 compliance. Substitute parts are identified when inventory constraints, regional availability, or specific compliance requirements necessitate alternative sourcing while maintaining electrical and mechanical compatibility.

Substiute Parts

40F3K0E

OhmiteIn Stock: 85640F3K0E Datasheet

Current PartRFQ

40F3K0

OhmiteIn Stock: 116540F3K0 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 40F3K0E is determined by strict equivalence across the following parameters:

• Resistance value: 3 kOhms
• Tolerance: ±1%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial with 2 terminations
• Physical dimensions: 0.406" Dia x 1.902" L
• Temperature coefficient: ±20ppm/°C

The substitute part 40F3K0 meets all electrical and mechanical specifications. Compliance differences are noted but do not affect functional interchangeability in applications where the component specifications are the primary selection criterion.

Parameter Comparison

Engineering Selection Recommendations

Both the 40F3K0E and 40F3K0 are active production components from Ohmite's Ohmicone® 40 series with identical electrical and mechanical specifications. The primary distinction is RoHS compliance status: the 40F3K0E meets ROHS3 requirements, while the 40F3K0 does not. Selection between these parts should be based on regulatory requirements applicable to the end application. Both components share equivalent REACH and ECCN classifications. Current inventory levels are 818 units for the 40F3K0E and 1112 units for the 40F3K0.

Frequently Asked Questions (FAQ)

Q: Can the 40F3K0 be used as a direct replacement for the 40F3K0E?

A: Yes, from an electrical and mechanical standpoint. Both components have identical resistance, tolerance, power rating, composition, package type, and physical dimensions. The difference lies in RoHS compliance status, which must be evaluated against application requirements.

Q: What is the significance of the RoHS compliance difference?

A: The 40F3K0E is ROHS3 compliant, while the 40F3K0 is not. Applications subject to RoHS regulations require the 40F3K0E. Applications without RoHS requirements can use either part.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both components measure 0.406" diameter by 1.902" length (10.30mm x 48.30mm) and are configured as axial wirewound resistors with 2 terminations.

Q: Do these parts have the same temperature coefficient?

A: Yes. Both the 40F3K0E and 40F3K0 have a temperature coefficient of ±20ppm/°C.

Q: What is the difference in inventory availability?

A: The 40F3K0E has 818 units in stock, while the 40F3K0 has 1112 units available. Inventory levels should be confirmed at the time of procurement.