Ohmite 45J5K0 5kΩ 5W Axial Wirewound Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 45J5K0 is a 5 kOhms ±5% 5W through-hole resistor with axial wirewound construction, part of the Ohmicone® 40 series. This component is designed for applications requiring precision power dissipation in compact form factors. The part maintains active product status with 1120 units in current inventory. Substitute parts are identified based on matching electrical specifications and mechanical compatibility to ensure direct functional equivalence in circuit applications.

Substiute Parts

45J5K0

OhmiteIn Stock: 114545J5K0 Datasheet

Current PartRFQ

45J5K0E

OhmiteIn Stock: 109845J5K0E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The Ohmite 45J5K0E qualifies as a parametric equivalent based on matching all critical electrical and mechanical specifications. Substitution eligibility is determined by the following parameters:

• Resistance value: 5 kOhms (exact match)
• Tolerance: ±5% (exact match)
• Power rating: 5W (exact match)
• Composition: Wirewound (exact match)
• Package configuration: Axial (exact match)
• Temperature coefficient: ±20ppm/°C (exact match)
• Physical dimensions: 0.343" Dia x 0.937" L (exact match)
• Number of terminations: 2 (exact match)

Both parts are manufactured by Ohmite and maintain active product status, confirming ongoing availability and support.

Parameter Comparison

Engineering Selection Recommendations

Both the 45J5K0 and 45J5K0E are active products from Ohmite with identical electrical and mechanical specifications. The primary distinction is regulatory compliance: the 45J5K0E is RoHS Compliant with defined moisture sensitivity level (MSL 1), while the 45J5K0 is RoHS non-compliant. Selection between these parts should be based on application requirements for environmental compliance and regulatory standards. Both parts carry EAR99 export classification and are suitable for direct substitution in circuits requiring 5 kOhms ±5% 5W axial wirewound resistors.

Frequently Asked Questions (FAQ)

Q: Can the 45J5K0E directly replace the 45J5K0 in existing designs?

A: Yes. Both parts share identical electrical specifications (5 kOhms ±5%, 5W), composition (wirewound), package type (axial), and physical dimensions (0.343" Dia x 0.937" L). Direct substitution is electrically and mechanically compatible.

Q: What is the difference between these two part numbers?

A: The primary differences are packaging format (45J5K0 uses standard packaging; 45J5K0E uses bulk packaging) and compliance certifications. The 45J5K0E is RoHS Compliant with MSL 1 rating, while the 45J5K0 is RoHS non-compliant. All functional parameters are identical.

Q: Which part should I specify for new designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS compliance, specify the 45J5K0E. Both parts are active products with confirmed inventory availability.

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

A: No. Both parts have identical temperature coefficient (±20ppm/°C) and power rating (5W). Thermal and electrical performance characteristics are equivalent.

Q: What is the significance of the MSL rating difference?

A: MSL (Moisture Sensitivity Level) indicates moisture handling requirements during storage and assembly. The 45J5K0E with MSL 1 (Unlimited) has no moisture sensitivity restrictions. The 45J5K0 is marked as Not Applicable, indicating different handling protocols may apply.