Ohmite 45J9K0 Equivalent & Substitute Parts

Part Overview

The Ohmite 45J9K0 is a 9 kOhms ±5% 5W through-hole resistor with axial wirewound composition, part of the Ohmicone® 40 series. This component is currently active in production and maintains 1142 pieces in new original stock. The part is specified for applications requiring precision wirewound resistor performance in axial package configuration. Substitute parts are identified to address packaging variations and compliance requirements while maintaining identical electrical and mechanical specifications.

Substiute Parts

45J9K0

OhmiteIn Stock: 118545J9K0 Datasheet

Current PartRFQ

45J9K0E

OhmiteIn Stock: 100945J9K0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The identified substitute part 45J9K0E is classified as a parametric equivalent based on the following criteria:

Electrical Parameters (Identical):

• Resistance: 9 kOhms
• Tolerance: ±5%
• Power Rating: 5W
• Temperature Coefficient: ±20ppm/°C

Mechanical Parameters (Identical):

• Composition: Wirewound
• Package: Axial
• Physical Dimensions: 0.343" Dia x 0.937" L (8.70mm x 23.80mm)
• Terminations: 2

Packaging Variation:

• 45J9K0: Standard packaging
• 45J9K0E: Bulk packaging

Both parts belong to the Ohmicone® 40 series and maintain active product status. The substitution is valid for any application requiring the specified electrical and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the 45J9K0 and 45J9K0E are suitable for applications requiring 9 kOhms ±5% 5W axial wirewound resistors. Selection between these parts should be based on the following factors:

45J9K0 (Standard Packaging): Use when standard packaging requirements are specified or when RoHS non-compliant components are acceptable for the application.

45J9K0E (Bulk Packaging): Use when ROHS3 compliance is required or when bulk packaging format aligns with procurement and assembly processes. This part maintains identical electrical and mechanical performance while meeting enhanced environmental compliance standards.

Both parts are active products with confirmed inventory availability and are suitable for direct substitution in circuit designs.

Frequently Asked Questions (FAQ)

Q: Can 45J9K0E be used as a direct replacement for 45J9K0?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance values (9 kOhms), tolerance (±5%), power rating (5W), temperature coefficient (±20ppm/°C), and physical dimensions (0.343" Dia x 0.937" L). The primary difference is packaging format and RoHS compliance status.

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

A: Standard packaging (45J9K0) and bulk packaging (45J9K0E) refer to the quantity and presentation format for procurement. Both contain identical components with no functional differences in circuit performance.

Q: Does RoHS compliance affect component performance?

A: RoHS compliance relates to material composition and environmental standards, not electrical performance. The 45J9K0E (ROHS3 Compliant) and 45J9K0 (RoHS non-compliant) deliver identical electrical characteristics. Selection should be based on application requirements and regulatory compliance mandates.

Q: Are both parts suitable for high-temperature applications?

A: Both parts specify a temperature coefficient of ±20ppm/°C. Operating temperature limits are not provided in the component specifications. Verify operating temperature requirements against application conditions before final selection.

Q: Can these parts be used interchangeably in existing designs?

A: Yes. The identical electrical parameters (9 kOhms ±5%, 5W), mechanical specifications (axial wirewound, 0.343" Dia x 0.937" L), and termination configuration (2 leads) ensure functional interchangeability in circuit designs.