Ohmite 20J220 220 Ohm 10W Axial Wirewound Resistor - Equivalent & Substitute Parts

Part Overview

The Ohmite 20J220 is a 220 Ohm, 10W axial wirewound resistor with ±5% tolerance and flame retardant coating. This through-hole component is designed for general-purpose power dissipation applications requiring robust thermal performance and safety features. The part maintains active product status with 915 units in current inventory. Equivalent and substitute parts are identified when design requirements permit tolerance relaxation, power rating adjustment, or packaging format changes while maintaining core electrical functionality.

Substiute Parts

20J220

OhmiteIn Stock: 101520J220 Datasheet

Current PartRFQ

20J220E

OhmiteIn Stock: 121520J220E Datasheet

DirectRFQ

ALSR10220R0FE12

Vishay DaleIn Stock: 888ALSR10220R0FE12 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 20J220 is determined by the following criteria:

Direct Equivalents maintain identical electrical specifications: 220 Ohm resistance, ±5% tolerance, 10W power rating, wirewound composition, and axial package format. These parts are interchangeable without circuit redesign.

Manufacturer-Recommended Alternatives may vary in tolerance, power rating, or protective features while preserving the core 220 Ohm resistance value and axial package configuration. Selection depends on application requirements for tolerance precision, thermal headroom, and environmental protection.

Critical Parameters for Substitution:

• Resistance value: 220 Ohms (fixed requirement)
• Package type: Axial (fixed requirement)
• Composition: Wirewound (fixed requirement)
• Tolerance: ±5% or tighter acceptable
• Power rating: 10W or greater acceptable
• Temperature coefficient: ±30ppm/°C or better acceptable

Parameter Comparison

Engineering Selection Recommendations

Ohmite 20J220E is the direct equivalent substitute. It maintains identical electrical and mechanical specifications while offering improved RoHS3 compliance status. This part is suitable for applications where regulatory compliance is required and packaging format (bulk) is acceptable.

Vishay Dale ALSR10220R0FE12 is a manufacturer-recommended alternative for applications where enhanced tolerance precision (±1% versus ±5%) and extended operating temperature range (-65°C ~ 250°C) provide design advantages. This part is suitable only for applications where the 7W power rating meets or exceeds thermal requirements, as it provides lower power dissipation capacity than the original 10W specification. Physical dimensions are reduced, which may affect board layout compatibility. RoHS3 compliance is available with this option.

Selection between these parts depends on specific application requirements for power dissipation, tolerance precision, temperature range, and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can the Ohmite 20J220E be used as a direct replacement for the Ohmite 20J220?

A: Yes. The 20J220E maintains identical resistance (220 Ohms), tolerance (±5%), power rating (10W), composition (wirewound), package type (axial), and temperature coefficient (±30ppm/°C). The primary difference is improved RoHS3 compliance status and bulk packaging format.

Q: Is the Vishay Dale ALSR10220R0FE12 a suitable substitute?

A: The ALSR10220R0FE12 is suitable only if the application can accommodate a 7W power rating instead of 10W. This part offers tighter tolerance (±1%) and extended operating temperature range (-65°C ~ 250°C). Physical dimensions are smaller, which may require board layout verification. RoHS3 compliance is available.

Q: What are the key differences between these substitute parts?

A: The Ohmite 20J220E is electrically and mechanically identical to the original part with improved compliance. The Vishay Dale ALSR10220R0FE12 differs in power rating (7W vs. 10W), tolerance (±1% vs. ±5%), physical size (smaller), and operating temperature range (specified vs. unspecified). All three parts share the same 220 Ohm resistance value, wirewound composition, and axial package format.

Q: Does package format affect substitution?

A: Yes. All three parts use axial package format, ensuring mechanical compatibility with through-hole PCB layouts. The Ohmite 20J220E uses bulk packaging, while the original 20J220 packaging format is not specified. The Vishay Dale ALSR10220R0FE12 has reduced physical dimensions (0.312" Dia x 1.730" L versus 0.394" Dia x 1.858" L), which may affect board layout spacing.

Q: What compliance certifications differ between these parts?

A: The original Ohmite 20J220 is RoHS non-compliant. Both the Ohmite 20J220E and Vishay Dale ALSR10220R0FE12 are ROHS3 compliant. All three parts are classified as EAR99 for export control purposes.