UB3C-220RF8 Equivalent & Substitute Parts

Part Overview

The UB3C-220RF8 is a 220 Ohm ±1% 3W axial wirewound resistor manufactured by Riedon. This component is designed for through-hole applications requiring current sensing functionality with enhanced reliability features including flame proof, moisture resistant, pulse withstanding, and safety certifications. The part is currently active in production with 948 units in stock. Equivalent and substitute parts are necessary to ensure supply chain continuity, accommodate different packaging requirements, or address specific application constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

UB3C-220RF8

RiedonIn Stock: 975UB3C-220RF8 Datasheet

Current PartRFQ

43F220E

OhmiteIn Stock: 86143F220E Datasheet

MFR RecommendedRFQ

RS02B220R0FE70

Vishay DaleIn Stock: 2776RS02B220R0FE70 Datasheet

MFR RecommendedRFQ

WW3FT220R

Stackpole Electronics IncIn Stock: 3070WW3FT220R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UB3C-220RF8 is determined by strict equivalence across the following critical parameters: resistance value (220 Ohms), tolerance (±1%), power rating (3W), composition (wirewound), package type (axial), and temperature coefficient (±20ppm/°C). All substitute parts listed maintain these core electrical specifications. Operating temperature ranges may vary within acceptable limits for the application. Physical dimensions differ among substitutes but remain compatible with standard axial through-hole PCB layouts. RoHS and REACH compliance status is provided for each substitute to support regulatory requirements.

Parameter Comparison

Engineering Selection Recommendations

All four parts maintain active production status and meet core electrical specifications for 220 Ohm ±1% 3W axial wirewound resistor applications. The UB3C-220RF8, RS02B220R0FE70, and WW3FT220R are ROHS3 compliant, while the 43F220E is RoHS compliant. The RS02B220R0FE70 and WW3FT220R offer extended lower temperature operating ranges (-65°C and -55°C respectively) compared to the primary part. The WW3FT220R provides the highest upper temperature rating at 350°C. Physical dimensions vary; the UB3C-220RF8 is the most compact at 4.00mm diameter, while the 43F220E is the largest at 5.60mm diameter. Selection should account for PCB layout constraints and thermal environment requirements within the specified operating ranges.

Frequently Asked Questions (FAQ)

Q: Can RS02B220R0FE70 replace UB3C-220RF8 in all applications? A: Yes, for electrical functionality. Both parts share identical resistance (220 Ohms), tolerance (±1%), power rating (3W), and temperature coefficient (±20ppm/°C). Physical dimensions differ; verify PCB layout compatibility before substitution.

Q: What is the primary difference between these substitute parts? A: Operating temperature ranges and physical dimensions vary. The WW3FT220R supports the widest temperature range (-55°C ~ 350°C). The UB3C-220RF8 is the most compact. All maintain equivalent electrical performance.

Q: Are all substitutes RoHS compliant? A: Yes. The UB3C-220RF8, RS02B220R0FE70, and WW3FT220R are ROHS3 compliant. The 43F220E is RoHS compliant. All meet regulatory requirements for restricted substance elimination.

Q: Does packaging format affect electrical performance? A: No. The UB3C-220RF8 is supplied in Tape & Reel format, while RS02B220R0FE70 and WW3FT220R are Cut Tape, and 43F220E is Bulk. Packaging affects handling and storage only; electrical characteristics remain identical.

Q: Which substitute offers the best thermal performance? A: The WW3FT220R supports operation to 350°C, the highest among all listed parts. For applications requiring extended high-temperature operation, this part is the appropriate selection.