Ohmite 40J2K5 Equivalent & Substitute Parts

Part Overview

The Ohmite 40J2K5 is a 2.5 kOhms ±5% 10W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is currently active in production and maintains 1019 units in new original stock. The 40J2K5 operates with a temperature coefficient of ±20ppm/°C and is housed in a 0.406" diameter by 1.902" length axial package. Substitute parts are identified to address packaging variations and compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

40J2K5

OhmiteIn Stock: 103140J2K5 Datasheet

Current PartRFQ

40J2K5E

OhmiteIn Stock: 117340J2K5E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 40J2K5 are identified based on electrical parameter equivalence and mechanical compatibility. The primary substitution criterion is the maintenance of identical resistance value (2.5 kOhms), tolerance (±5%), power rating (10W), temperature coefficient (±20ppm/°C), and physical dimensions (0.406" Dia x 1.902" L). The 40J2K5E is classified as a parametric equivalent, differing only in packaging configuration (Bulk versus standard packaging) and RoHS compliance status. Both parts are manufactured by Ohmite within the Ohmicone® 40 series and maintain active product status.

Parameter Comparison

Engineering Selection Recommendations

Selection between the 40J2K5 and 40J2K5E is determined by regulatory compliance requirements and packaging specifications. The 40J2K5 is suitable for applications where RoHS non-compliance is acceptable or where standard packaging is required. The 40J2K5E is the appropriate selection for designs requiring ROHS3 compliance, as it maintains all electrical and mechanical specifications while meeting current environmental regulations. Both parts are active products with established supply availability. The choice between standard and bulk packaging should be based on procurement volume and inventory management requirements.

Frequently Asked Questions (FAQ)

Q: Are the 40J2K5 and 40J2K5E electrically identical? A: Yes. Both parts maintain identical resistance (2.5 kOhms), tolerance (±5%), power rating (10W), temperature coefficient (±20ppm/°C), and physical dimensions (0.406" Dia x 1.902" L). Electrical performance is equivalent.

Q: What is the primary difference between these parts? A: The 40J2K5E is ROHS3 compliant, while the 40J2K5 is RoHS non-compliant. Additionally, the 40J2K5E is supplied in bulk packaging, whereas the 40J2K5 uses standard packaging.

Q: Can the 40J2K5E be used as a direct replacement for the 40J2K5? A: Yes, the 40J2K5E is a direct parametric equivalent. It can be substituted in any application where the 40J2K5 is specified, provided that bulk packaging is acceptable for your procurement process.

Q: Are there any mechanical compatibility concerns when substituting between these parts? A: No. Both parts share identical axial package dimensions (0.406" Dia x 1.902" L / 10.30mm x 48.30mm) and two-terminal configuration, ensuring mechanical compatibility in all through-hole applications.

Q: Which part should be selected for new designs? A: The 40J2K5E is recommended for new designs due to ROHS3 compliance, which aligns with current environmental regulations and supply chain requirements.

Q: Do both parts have the same inventory availability? A: Current inventory levels differ: 40J2K5 has 1019 units in stock, while 40J2K5E has 1133 units in stock. Both are available as new original components.