Equivalent & Substitute Parts for Ohmite 21J10R

Part Overview

The Ohmite 21J10R is a 10 Ohm, 1W axial wirewound resistor with ±5% tolerance and flame retardant coating. This component is classified as Active product status and is designed for through-hole applications requiring reliable power dissipation in compact form factors. Substitute parts are identified when electrical specifications, mechanical dimensions, and packaging compatibility align with the original component's functional requirements.

Substiute Parts

21J10R

OhmiteIn Stock: 117021J10R Datasheet

Current PartRFQ

21J10RE

OhmiteIn Stock: 119221J10RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 21J10R are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

• Resistance value: 10 Ohms (exact match required)
• Tolerance: ±5% (exact match required)
• Power rating: 1W (exact match required)
• Composition: Wirewound (exact match required)
• Package: Axial (exact match required)
• Physical dimensions: 0.157" Dia x 0.421" L (exact match required)
• Temperature coefficient: ±30ppm/°C (exact match required)
• Termination count: 2 (exact match required)

The Ohmite 21J10RE meets all substitution criteria and is classified as a parametric equivalent.

Parameter Comparison

Engineering Selection Recommendations

The 21J10RE is a direct parametric equivalent to the 21J10R. Both components share identical electrical specifications, mechanical dimensions, and functional characteristics. The primary distinction is regulatory compliance: the 21J10RE is ROHS3 compliant, while the 21J10R is RoHS non-compliant. Selection between these parts should be based on application requirements and regulatory mandates applicable to the end product. Both components maintain Active product status and are suitable for equivalent circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the 21J10RE replace the 21J10R in all applications?

A: The 21J10RE is electrically and mechanically identical to the 21J10R. Substitution is valid for all applications where the electrical specifications (10 Ohms, ±5%, 1W) and physical form factor (axial, 4.00mm x 10.70mm) are required. Regulatory compliance differences should be evaluated based on product requirements.

Q: What is the difference between the 21J10R and 21J10RE?

A: The components are parametrically equivalent. The 21J10RE is ROHS3 compliant, while the 21J10R is RoHS non-compliant. All other specifications, including resistance, tolerance, power rating, dimensions, and temperature coefficient, are identical.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 21J10R and 21J10RE have identical dimensions of 0.157" Dia x 0.421" L (4.00mm x 10.70mm), ensuring mechanical compatibility in PCB layouts and through-hole applications.

Q: What packaging options are available?

A: The 21J10R is available in standard packaging, while the 21J10RE is supplied in Bulk packaging. Both maintain the same component specifications and are suitable for equivalent circuit applications.

Q: Are both parts suitable for high-reliability applications?

A: Both components feature flame retardant coating and safety characteristics. Selection should be based on specific application requirements and any regulatory compliance mandates applicable to the end product.