Ohmite 40J2K0 Equivalent & Substitute Parts

Part Overview

The Ohmite 40J2K0 is a 2 kOhms ±5% 10W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production with 1153 pieces in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part number becomes unavailable or when alternative packaging configurations are required.

Substiute Parts

40J2K0

OhmiteIn Stock: 125440J2K0 Datasheet

Current PartRFQ

40J2K0E

OhmiteIn Stock: 260840J2K0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Ohmite 40J2K0 is determined by strict equivalence across the following critical parameters:

• Resistance value: 2 kOhms
• Tolerance: ±5%
• 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 40J2K0E maintains identical electrical and mechanical specifications, with the primary distinction being packaging format (Bulk versus standard packaging) and enhanced compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the 40J2K0 and 40J2K0E are electrically and mechanically equivalent 2 kOhms ±5% 10W axial wirewound resistors suitable for direct substitution in circuit applications requiring these specifications.

The 40J2K0E offers enhanced compliance status with RoHS compliance certification, whereas the 40J2K0 is RoHS non-compliant. Selection between these parts should be based on regulatory requirements and end-product compliance mandates. The 40J2K0E is available in bulk packaging, which may be advantageous for high-volume procurement scenarios. Both parts maintain identical electrical performance and physical dimensions, ensuring functional interchangeability in PCB layouts and circuit designs.

Frequently Asked Questions (FAQ)

Q: Can the 40J2K0E be used as a direct replacement for the 40J2K0?

A: Yes. Both parts are electrically and mechanically equivalent with identical resistance, tolerance, power rating, composition, package type, and physical dimensions. The primary differences are packaging format and compliance certifications.

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

A: The 40J2K0 is supplied in standard packaging, while the 40J2K0E is supplied in bulk packaging. Bulk packaging is typically used for high-volume orders and may offer cost advantages for large-quantity procurement.

Q: Does RoHS compliance affect electrical performance?

A: No. RoHS compliance is a regulatory and material composition requirement that does not alter the electrical characteristics or performance of the resistor. Both parts deliver identical electrical specifications.

Q: Are the physical dimensions identical between the two parts?

A: Yes. Both the 40J2K0 and 40J2K0E have identical dimensions of 0.406" Dia x 1.902" L (10.30mm x 48.30mm), ensuring compatibility with existing PCB layouts and mechanical assemblies.

Q: What is the operating temperature range for these resistors?

A: The 40J2K0E specifies an operating temperature range of -55°C ~ 275°C. The 40J2K0 does not provide an explicit operating temperature specification in the available documentation.