Equivalent & Substitute Parts for Murata Power Solutions 3020-01102-0

Part Overview

The Murata Power Solutions 3020-01102-0 is a 167 µOhms ±0.25% 15W metal element chassis mount resistor designed for current sensing applications. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and procurement planning. The DMS series resistor features flanged mounting and operates across -40°C to 60°C, serving applications requiring precision low-resistance measurement in power distribution and monitoring circuits.

Substiute Parts

3020-01102-0

Murata Power SolutionsIn Stock: 15293020-01102-0 Datasheet

Current PartRFQ

RSB-300-50

RiedonIn Stock: 903RSB-300-50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 3020-01102-0 is determined by strict alignment across electrical and mechanical parameters. The primary substitute, Riedon RSB-300-50, qualifies based on the following criteria:

Electrical Equivalence:

• Resistance value within tolerance band: 166.7 µOhms falls within the ±0.25% tolerance specification of the original 167 µOhms requirement
• Identical power rating: 15W
• Matching tolerance class: ±0.25%
• Identical temperature coefficient: ±15ppm/°C
• Identical operating temperature range: -40°C to 60°C
• Metal element composition maintained

Mechanical Compatibility:

• Flanged mounting feature preserved
• Rectangular case package maintained
• Current sense application supported

Regulatory Compliance:

• Both components maintain ROHS3 compliance
• EAR99 export classification consistent

Parameter Comparison

Engineering Selection Recommendations

The Riedon RSB-300-50 serves as a direct functional equivalent for the obsolete Murata 3020-01102-0. Selection is supported by:

Electrical Performance: The 166.7 µOhms resistance value of the RSB-300-50 remains within the ±0.25% tolerance specification, ensuring equivalent current sensing accuracy. Matching power rating, temperature coefficient, and operating range preserve thermal and electrical behavior in circuit applications.

Regulatory Status: Both components maintain ROHS3 compliance and EAR99 classification, eliminating compliance barriers to substitution. The RSB-300-50 carries active product status, ensuring continued availability and supply chain stability.

Mechanical Integration: Flanged mounting and rectangular case packaging are preserved, supporting direct mechanical interchange in existing designs. The RSB-300-50 adds pulse withstanding capability, providing enhanced robustness without compromising baseline specifications.

Availability: The RSB-300-50 maintains 817 units in current inventory, supporting immediate procurement requirements.

Frequently Asked Questions (FAQ)

Q: Can the Riedon RSB-300-50 replace the Murata 3020-01102-0 in existing designs?

A: Yes. The RSB-300-50 meets all electrical and mechanical parameters required for direct substitution. Resistance values fall within the specified tolerance band, power rating and temperature characteristics are identical, and mounting features are compatible.

Q: What is the resistance tolerance impact of using 166.7 µOhms instead of 167 µOhms?

A: The 0.3 µOhm difference represents 0.18% of the nominal value, well within the ±0.25% tolerance specification. Both components deliver equivalent current sensing accuracy.

Q: Are there dimensional differences between these components?

A: The Murata 3020-01102-0 measures 3.250" L x 1.750" W with 1.750" seated height. The Riedon RSB-300-50 measures 1.750" L x 3.260" W with 1.650" seated height. Orientation differs, but both use flanged mounting. Physical layout verification is required for board-level integration.

Q: Does the RSB-300-50 pulse withstanding feature affect substitution suitability?

A: No. Pulse withstanding is an additional capability that does not conflict with the baseline current sensing function. This feature enhances component robustness without altering electrical or thermal behavior.

Q: What compliance certifications apply to both components?

A: Both the 3020-01102-0 and RSB-300-50 maintain ROHS3 compliance. The RSB-300-50 carries REACH Affected status, while the original component is REACH Unaffected. Regulatory requirements for your application determine whether this distinction impacts procurement.