53JR10E Equivalent & Substitute Parts

Part Overview

The 53JR10E is a 3W wirewound axial resistor with 100 mOhms (0.1 Ohm) resistance and ±5% tolerance, manufactured by Ohmite. This component is designed for through-hole applications requiring low-resistance, high-power dissipation in compact form factors. The part maintains Active product status with full RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the allowed parameter range.

Substiute Parts

53JR10E

OhmiteIn Stock: 108053JR10E Datasheet

Current PartRFQ

43JR10E

OhmiteIn Stock: 98943JR10E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

The 43JR10E qualifies as a direct substitute for the 53JR10E based on the following critical parameters:

• Resistance Value: Both parts specify 100 mOhms with ±5% tolerance
• Power Rating: Both rated at 3W
• Composition: Both are wirewound construction
• Package Type: Both use axial through-hole configuration
• Temperature Coefficient: Both maintain ±90 ppm/°C
• Terminations: Both feature 2-pin axial leads
• Compliance: Both are RoHS compliant with MSL 1 rating
• Product Status: Both maintain Active status

Substitution is valid where these electrical and mechanical parameters are interchangeable within the application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the 53JR10E and 43JR10E maintain Active product status with full RoHS compliance and identical electrical specifications. The 43JR10E provides an explicit operating temperature range of -55°C to 275°C, whereas the 53JR10E does not specify this parameter. Physical dimensions differ slightly in length (0.551" versus 0.594"), which may impact PCB layout considerations in space-constrained applications. Both parts carry MSL 1 rating, indicating no moisture sensitivity restrictions. Selection between these parts should be based on packaging requirements (Box versus Bulk), available inventory, and physical space constraints within the application.

Frequently Asked Questions (FAQ)

Q: Can the 43JR10E replace the 53JR10E in existing designs?

A: Yes, provided that the 0.043" (1.10mm) difference in axial length does not conflict with PCB layout or mechanical constraints. All electrical parameters, tolerance, power rating, and compliance certifications are equivalent.

Q: What is the significance of the Series designation (50 versus 40)?

A: The Series designation indicates the product line within Ohmite's wirewound resistor portfolio. Both Series 50 and Series 40 components meet the specified electrical and mechanical requirements for this application.

Q: Does the 43JR10E have better temperature performance?

A: The 43JR10E explicitly specifies an operating temperature range of -55°C to 275°C. The 53JR10E does not provide this specification in the available data. Both maintain identical temperature coefficient ratings of ±90 ppm/°C.

Q: Are there packaging differences that affect component handling?

A: The 53JR10E is supplied in Box packaging, while the 43JR10E is supplied in Bulk packaging. This distinction affects order quantities and storage considerations but does not impact electrical or mechanical performance.

Q: What compliance certifications apply to both parts?

A: Both the 53JR10E and 43JR10E are RoHS compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating no special storage or handling requirements related to moisture exposure.