Ohmite 90J2R7 2.7 Ohm 11W Axial Wirewound Resistor Equivalent & Substitute Parts

Part Overview

The Ohmite 90J2R7 is an 11W axial wirewound resistor with 2.7 ohm resistance and ±5% tolerance, featuring flame retardant coating and safety construction. This through-hole component is designed for high-power applications requiring reliable thermal dissipation and mechanical stability. The part maintains Active product status with 736 units currently in stock. Substitute parts are identified when packaging configurations differ or when compliance requirements necessitate alternative sourcing while maintaining identical electrical and mechanical specifications.

Substiute Parts

90J2R7

OhmiteIn Stock: 74890J2R7 Datasheet

Current PartRFQ

90J2R7E

OhmiteIn Stock: 117690J2R7E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 90J2R7 is determined by strict equivalence across the following critical parameters: resistance value (2.7 Ohms), tolerance (±5%), power rating (11W), composition (Wirewound), package type (Axial), physical dimensions (0.343" Dia x 1.811" L), temperature coefficient (±100ppm/°C), and safety features (Flame Retardant Coating, Safety construction). The identified substitute, 90J2R7E, maintains complete electrical and mechanical equivalence while differing only in packaging configuration (Bulk versus standard) and RoHS compliance status. Both parts are manufactured by Ohmite and carry the same series designation (90), confirming parametric compatibility for direct substitution in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

Both the 90J2R7 and 90J2R7E are Active products manufactured by Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs. The 90J2R7E offers ROHS3 compliance with Moisture Sensitivity Level 1 (Unlimited), making it suitable for applications subject to RoHS3 regulatory requirements. The 90J2R7 remains available for applications where RoHS compliance is not mandated. The 90J2R7E's Bulk packaging configuration may provide cost advantages for high-volume procurement. Both parts are suitable for direct substitution in circuit designs requiring 2.7 ohm, 11W axial wirewound resistors with flame retardant construction.

Frequently Asked Questions (FAQ)

Q: Can the 90J2R7E directly replace the 90J2R7 in existing designs? A: Yes. The 90J2R7E is a parametric equivalent with identical resistance, tolerance, power rating, composition, package type, and physical dimensions. Direct substitution is electrically and mechanically compatible.

Q: What is the difference between the 90J2R7 and 90J2R7E? A: The primary differences are packaging configuration (Standard versus Bulk) and RoHS compliance status (non-compliant versus ROHS3 Compliant). All electrical and mechanical parameters are identical.

Q: Which part should I select for RoHS3-compliant applications? A: The 90J2R7E is ROHS3 Compliant and carries Moisture Sensitivity Level 1 (Unlimited), making it the appropriate choice for applications requiring RoHS3 certification.

Q: Are the physical dimensions identical between both parts? A: Yes. Both parts measure 0.343" Dia x 1.811" L (8.70mm x 46.00mm) and use identical Axial package construction, ensuring PCB layout compatibility.

Q: What is the temperature coefficient specification for these resistors? A: Both the 90J2R7 and 90J2R7E have a temperature coefficient of ±100ppm/°C, indicating stable resistance performance across the operating temperature range.

Q: Can these parts be used interchangeably in high-power applications? A: Yes. Both parts are rated for 11W power dissipation with wirewound construction and flame retardant coating, providing equivalent thermal performance and safety characteristics.