Equivalent & Substitute Parts for 20J27R

Part Overview

The 20J27R is a 27 Ohms ±5% 10W through-hole wirewound resistor manufactured by Ohmite, featuring flame retardant coating and safety construction in axial package configuration. This component is classified as Active product status with 992 units currently in stock. Substitute parts are identified when identical electrical specifications and mechanical compatibility are maintained across packaging and compliance variations.

Substiute Parts

20J27R

OhmiteIn Stock: 109120J27R Datasheet

Current PartRFQ

20J27RE

OhmiteIn Stock: 100620J27RE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The 20J27RE qualifies as a parametric equivalent to the 20J27R based on the following criteria:

• Identical resistance value: 27 Ohms
• Matching tolerance: ±5%
• Equivalent power rating: 10W
• Same composition: Wirewound
• Identical package configuration: Axial
• Matching physical dimensions: 0.394" Dia x 1.858" L (10.00mm x 47.20mm)
• Identical temperature coefficient: ±30ppm/°C
• Matching features: Flame Retardant Coating, Safety
• Same number of terminations: 2

The primary difference between these parts is packaging format (Box versus Bulk) and RoHS compliance status, which do not affect electrical or mechanical substitutability.

Parameter Comparison

Engineering Selection Recommendations

Both the 20J27R and 20J27RE are Active status components suitable for direct substitution in applications requiring 27 Ohms ±5% 10W wirewound resistors with axial configuration.

The 20J27RE offers ROHS3 compliance, making it the preferred selection for applications subject to RoHS regulatory requirements. The 20J27R remains suitable for applications where RoHS compliance is not mandated.

Packaging format selection (Box for 20J27R versus Bulk for 20J27RE) depends on procurement and inventory management requirements and does not affect circuit performance or mechanical fit.

Frequently Asked Questions (FAQ)

Q: Can 20J27RE replace 20J27R in existing designs?

A: Yes. Both parts share identical electrical specifications (27 Ohms ±5%, 10W), composition (wirewound), temperature coefficient (±30ppm/°C), and physical dimensions (0.394" Dia x 1.858" L). The axial package configuration and two-terminal design ensure mechanical compatibility in PCB layouts and through-hole applications.

Q: What is the difference between Box and Bulk packaging?

A: Packaging format affects procurement and storage logistics but not component performance. Box packaging (20J27R) typically includes protective outer packaging for smaller quantities. Bulk packaging (20J27RE) is used for larger volume orders with different handling and storage considerations.

Q: Does RoHS compliance affect circuit performance?

A: No. RoHS compliance status reflects manufacturing process and material composition but does not alter electrical characteristics, power rating, tolerance, or temperature coefficient. Selection between 20J27R and 20J27RE should be based on regulatory requirements applicable to the end application.

Q: Are the physical dimensions identical?

A: Yes. Both 20J27R and 20J27RE measure 0.394" diameter by 1.858" length (10.00mm x 47.20mm), ensuring identical fit in axial through-hole mounting positions.

Q: What is the temperature coefficient significance?

A: The ±30ppm/°C temperature coefficient indicates resistance value stability across operating temperature ranges. Both parts share this specification, ensuring equivalent performance in temperature-sensitive applications.