Ohmite 23J270 3W 270 Ohms Wirewound Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 23J270 is a 3W wirewound resistor with 270 ohms resistance and ±5% tolerance, designed for through-hole axial applications. This component features flame retardant coating and safety-rated construction, making it suitable for industrial and safety-critical applications. The part is currently active in production with 944 units in stock. Substitute parts may be required due to packaging preferences, compliance requirements, or inventory availability across different distribution channels.

Substiute Parts

23J270

OhmiteIn Stock: 104523J270 Datasheet

Current PartRFQ

23J270E

OhmiteIn Stock: 99223J270E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the Ohmite 23J270 is based on electrical and mechanical parameter equivalence. The primary substitute, 23J270E, maintains identical electrical specifications: 270 ohms resistance, ±5% tolerance, 3W power rating, and wirewound composition. Both parts share the same axial package configuration, physical dimensions (0.220" Dia x 0.516" L), temperature coefficient (±30ppm/°C), and safety features including flame retardant coating.

The key differentiator between these parts is packaging format: the 23J270 is supplied in box packaging, while the 23J270E is supplied in bulk packaging. Additionally, the 23J270E carries RoHS Compliant certification, whereas the 23J270 is RoHS non-compliant. Both parts are manufactured by Ohmite under the Series 20 product line and maintain active production status.

Substitution is valid when the application requirements permit either packaging format and when regulatory compliance with RoHS standards is either required (necessitating 23J270E) or not applicable (permitting either part).

Parameter Comparison

Engineering Selection Recommendations

Both the 23J270 and 23J270E are suitable for direct substitution in applications where the electrical and mechanical specifications are the primary selection criteria. The choice between these parts should be determined by two factors:

1. Regulatory Compliance: If the application or end-market requires RoHS compliance, the 23J270E must be selected. If RoHS compliance is not a requirement, either part is acceptable.

2. Packaging Requirements: Select 23J270 for box packaging applications or inventory management systems requiring individual unit packaging. Select 23J270E for bulk packaging applications or high-volume procurement scenarios.

Both parts maintain identical electrical performance, physical dimensions, and safety certifications. The substitution is electrically and mechanically transparent to the circuit design.

Frequently Asked Questions (FAQ)

Q: Can 23J270E be used as a direct replacement for 23J270 in existing designs?

A: Yes. The 23J270E is electrically and mechanically equivalent to the 23J270. Both parts have identical resistance (270 ohms), tolerance (±5%), power rating (3W), physical dimensions (0.220" Dia x 0.516" L), and safety features. The only differences are packaging format (box vs. bulk) and RoHS compliance status. PCB layout and circuit performance remain unchanged.

Q: What is the primary difference between 23J270 and 23J270E?

A: The primary differences are packaging format and regulatory compliance. The 23J270 is supplied in box packaging and is RoHS non-compliant. The 23J270E is supplied in bulk packaging and is RoHS Compliant. All electrical and mechanical specifications are identical.

Q: Which part should I specify for a new design?

A: If the application or end-market requires RoHS compliance, specify 23J270E. If RoHS compliance is not required and box packaging is preferred, specify 23J270. Both parts are in active production with adequate inventory availability.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both 23J270 and 23J270E have identical axial package dimensions of 0.220" diameter by 0.516" length (5.60mm x 13.10mm). They are mechanically interchangeable in through-hole PCB applications.

Q: What does RoHS Compliant mean for the 23J270E?

A: RoHS Compliant indicates that the 23J270E meets the Restriction of Hazardous Substances directive, limiting the use of specific hazardous materials in electrical and electronic equipment. This certification is required for products sold in certain markets and applications. The 23J270 does not carry this certification.

Q: Can I mix 23J270 and 23J270E in the same production batch?

A: Electrically and mechanically, yes. However, if RoHS compliance is a requirement for the final product, only 23J270E should be used. If RoHS compliance is not required, both parts are functionally equivalent and can be used interchangeably.