Ohmite 20J47R Equivalent & Substitute Parts

Part Overview

The Ohmite 20J47R is a 47 Ohm, 5% tolerance, 10W axial wirewound resistor with flame retardant coating and safety features. This component is designed for through-hole applications requiring reliable power dissipation in industrial and electronic equipment. The part maintains Active product status with 852 units currently in stock. Equivalent parts are identified to support procurement flexibility, supply chain continuity, and application-specific packaging requirements.

Substiute Parts

20J47R

OhmiteIn Stock: 91920J47R Datasheet

Current PartRFQ

20J47RE

OhmiteIn Stock: 89820J47RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Ohmite 20J47R is determined by strict equivalence across the following critical parameters:

• Resistance value: 47 Ohms
• Tolerance: ±5%
• Power rating: 10W
• Composition: Wirewound
• Package configuration: Axial
• Physical dimensions: 0.394" Dia x 1.858" L (10.00mm x 47.20mm)
• Temperature coefficient: ±30ppm/°C
• Termination count: 2

The Ohmite 20J47RE meets all electrical and mechanical requirements for direct substitution. The primary distinction is packaging format: the 20J47R is supplied in standard packaging, while the 20J47RE is available in bulk packaging. Both parts share identical electrical performance characteristics and physical form factors.

Parameter Comparison

Engineering Selection Recommendations

Both the 20J47R and 20J47RE are Active products from Ohmite's Series 20 wirewound resistor line. Selection between these parts should be based on regulatory compliance requirements and procurement volume considerations.

The 20J47R maintains RoHS non-compliant status, suitable for applications where legacy component specifications are required or where RoHS compliance is not mandated. The 20J47RE achieves ROHS3 compliance, meeting current environmental and regulatory standards for new equipment designs and markets with mandatory RoHS requirements.

Both parts carry identical electrical specifications, physical dimensions, and thermal characteristics. Packaging format differs: standard packaging for 20J47R and bulk packaging for 20J47RE. Inventory levels are comparable, with 870 units of the 20J47RE available against 852 units of the 20J47R.

Frequently Asked Questions (FAQ)

Q: Can the 20J47RE replace the 20J47R in existing designs?

A: Yes. The 20J47RE is electrically and mechanically equivalent to the 20J47R. Both parts share identical resistance values, tolerance, power rating, composition, axial package configuration, and physical dimensions. Direct substitution is supported without circuit redesign.

Q: What is the primary difference between these two parts?

A: The main differences are packaging format and RoHS compliance status. The 20J47R uses standard packaging and is RoHS non-compliant. The 20J47RE uses bulk packaging and is ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Which part should be selected for new equipment designs?

A: Selection depends on regulatory requirements. For applications requiring RoHS3 compliance, the 20J47RE is the appropriate choice. For legacy systems or applications without RoHS mandates, either part is suitable based on packaging and inventory availability.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both the 20J47R and 20J47RE measure 0.394" diameter by 1.858" length (10.00mm x 47.20mm). They are mechanically interchangeable in axial through-hole applications.

Q: What does the bulk packaging format mean for the 20J47RE?

A: Bulk packaging indicates the 20J47RE is supplied in larger quantities without individual component packaging, typically used for high-volume manufacturing and assembly operations. Standard packaging for the 20J47R provides individual component protection suitable for lower-volume procurement.