R5J120 Equivalent & Substitute Parts

Part Overview

The R5J120 is a 120 Ohm, 5W wirewound through-hole resistor manufactured by Ohmite in the PC-58 series. This radial component features flame retardant coating and safety construction, designed for applications requiring reliable power dissipation in through-hole configurations. The part is currently active in production with 1003 units in stock. Substitute parts are identified to address inventory availability, compliance requirements, or packaging preferences while maintaining electrical and mechanical compatibility.

Substiute Parts

R5J120

OhmiteIn Stock: 1029R5J120 Datasheet

Current PartRFQ

R5J120E

OhmiteIn Stock: 1130R5J120E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The R5J120E is classified as a parametric equivalent to the R5J120. Substitution is valid based on the following matching criteria:

• Identical resistance value: 120 Ohms
• Identical tolerance: ±5%
• Identical power rating: 5W
• Identical composition: Wirewound
• Identical package type: Radial
• Identical temperature coefficient: ±260ppm/°C
• Identical physical dimensions: 0.625" L x 0.344" W (15.88mm x 8.74mm)
• Identical seated height: 0.516" (13.11mm)
• Identical number of terminations: 2
• Identical features: Flame Retardant Coating, Safety
• Same manufacturer: Ohmite
• Same series: PC-58

The R5J120E differs only in packaging format (Bulk vs. standard) and compliance certifications, making it electrically and mechanically interchangeable in all applications where the R5J120 is specified.

Parameter Comparison

Engineering Selection Recommendations

Both R5J120 and R5J120E are active production components from Ohmite with identical electrical and mechanical specifications. Selection between these parts should be based on compliance requirements and packaging needs:

The R5J120E is ROHS3 compliant, making it the appropriate choice for applications subject to RoHS regulations or customer requirements mandating RoHS compliance. The R5J120 is RoHS non-compliant and suitable for applications without such restrictions. Both parts maintain identical performance characteristics, dimensional compatibility, and thermal behavior. Packaging format (Bulk for R5J120E) may influence procurement and handling procedures but does not affect component functionality or circuit performance.

Frequently Asked Questions (FAQ)

Q: Can R5J120E be used as a direct replacement for R5J120?

A: Yes. The R5J120E is electrically and mechanically identical to the R5J120. All electrical parameters, physical dimensions, and performance characteristics are equivalent. The primary difference is RoHS compliance status and packaging format.

Q: What is the difference between R5J120 and R5J120E?

A: The R5J120E is ROHS3 compliant while the R5J120 is RoHS non-compliant. The R5J120E is supplied in Bulk packaging. All other specifications—resistance, tolerance, power rating, dimensions, and thermal characteristics—are identical.

Q: Which part should I specify for a new design?

A: If RoHS compliance is required by your application, customer, or regulatory environment, specify R5J120E. If RoHS compliance is not a requirement, either part is acceptable based on availability and procurement preferences.

Q: Are the physical dimensions identical between these parts?

A: Yes. Both parts measure 0.625" L x 0.344" W (15.88mm x 8.74mm) with a maximum seated height of 0.516" (13.11mm). They are pin-compatible and occupy identical PCB footprints.

Q: What does the packaging difference mean?

A: R5J120E is supplied in Bulk packaging, which typically affects order quantities and handling procedures but does not impact component performance or electrical characteristics.