Ohmite 20JR30 Wirewound Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 20JR30 is a 300 mOhms ±5% 10W through-hole wirewound resistor with axial leads, featuring flame retardant coating and safety construction. This component is designed for applications requiring precision current sensing, power dissipation, and reliable performance in industrial and electronic equipment. The part maintains Active product status with 1118 units in current inventory. Substitute parts are identified to address packaging preferences, compliance requirements, and supply chain flexibility while maintaining identical electrical and mechanical specifications.

Substiute Parts

20JR30

OhmiteIn Stock: 119620JR30 Datasheet

Current PartRFQ

20JR30E

OhmiteIn Stock: 106820JR30E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 20JR30 is determined by strict equivalence across the following critical parameters:

• Resistance value: 300 mOhms
• Tolerance: ±5%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial
• Physical dimensions: 0.394" Dia x 1.858" L (10.00mm x 47.20mm)
• Number of terminations: 2
• Features: Flame Retardant Coating, Safety

The identified substitute part (20JR30E) maintains complete electrical and mechanical equivalence to the main part number. The primary distinction between these part numbers is packaging format: the main part (20JR30) is supplied in standard packaging, while the substitute (20JR30E) is supplied in bulk packaging. Both parts are manufactured by Ohmite within the same Series 20 product line and share identical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both the 20JR30 and 20JR30E are Active products manufactured by Ohmite with identical electrical and mechanical specifications. Selection between these part numbers should be based on the following criteria:

20JR30 (Main Part): Select this part number for standard packaging requirements and when RoHS non-compliant components are acceptable for the application.

20JR30E (Substitute Part): Select this part number when bulk packaging is preferred for high-volume assembly operations or when ROHS3 compliance is required by design specifications or regulatory requirements.

Both parts are suitable for direct substitution in applications requiring 300 mOhms ±5% 10W wirewound resistors with axial configuration and flame retardant safety features.

Frequently Asked Questions (FAQ)

Q: Are the 20JR30 and 20JR30E electrically identical? A: Yes. Both parts have identical resistance value (300 mOhms), tolerance (±5%), power rating (10W), composition (wirewound), and physical dimensions (0.394" Dia x 1.858" L). They are direct electrical equivalents.

Q: What is the difference between these part numbers? A: The primary difference is packaging format. The 20JR30 uses standard packaging, while the 20JR30E uses bulk packaging. Additionally, the 20JR30E carries ROHS3 compliance certification, whereas the 20JR30 is RoHS non-compliant.

Q: Can I use 20JR30E as a direct replacement for 20JR30 in my circuit? A: Yes. The 20JR30E is a direct substitute for the 20JR30. Both parts share identical axial lead configuration, physical dimensions, and electrical characteristics, making them interchangeable at the component level.

Q: Does packaging format affect component performance? A: No. Packaging format (standard vs. bulk) does not affect electrical performance or mechanical compatibility. The choice between packaging formats is determined by assembly process requirements and inventory management preferences.

Q: Which part should I specify for new designs? A: Specify based on your compliance and packaging requirements. If ROHS3 compliance is required, specify 20JR30E. If bulk packaging is preferred for manufacturing efficiency, specify 20JR30E. Otherwise, either part number is suitable.

Q: Are both parts currently available? A: Yes. Both parts are Active products with current inventory: 20JR30 has 1118 units in stock, and 20JR30E has 1013 units in stock.