Murata Power Solutions 84332C Fixed Inductor - Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 84332C is a 3.3 µH unshielded wirewound inductor rated for 1.5 A continuous current with a maximum DC resistance of 120mOhm. This component is designed for surface mount applications in nonstandard packaging and operates across the industrial temperature range of -40°C to 125°C. The part maintains Active product status and is fully RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for the application.

Substiute Parts

84332C

Murata Power Solutions Inc.In Stock: 188484332C Datasheet

Current PartRFQ

SDR0403-3R3ML

Bourns Inc.In Stock: 9086SDR0403-3R3ML Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 84332C is permissible with the Bourns SDR0403-3R3ML based on the following critical parameters:

Matching Parameters:

• Inductance value: 3.3 µH (identical)
• Inductance tolerance: ±20% (identical)
• Shielding configuration: Unshielded (identical)
• Mounting type: Surface Mount (identical)
• Operating temperature range: -40°C to 125°C (identical)
• RoHS3 compliance: Both parts compliant
• Moisture sensitivity level: 1 (Unlimited) for both parts

Enhanced Performance Characteristics: The substitute part provides improved electrical performance with higher current rating (2.15 A vs. 1.5 A) and lower DC resistance (58mOhm Max vs. 120mOhm Max), making it suitable for applications requiring greater current capacity or lower losses while maintaining the same inductance value and tolerance band.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata 84332C and Bourns SDR0403-3R3ML maintain Active product status and full RoHS3 compliance. The substitute part is electrically compatible for applications requiring the specified 3.3 µH inductance value with ±20% tolerance. The Bourns SDR0403-3R3ML offers superior current handling capability and reduced DC resistance, making it suitable for designs where thermal performance or current margin is a consideration. Physical dimensions differ slightly in width (0.130" vs. 0.157") and height (0.114" vs. 0.138"), requiring verification of PCB layout constraints before implementation. Both parts are classified as Moisture Sensitivity Level 1 with unlimited shelf life under standard storage conditions.

Frequently Asked Questions (FAQ)

Q: What are the primary substitution criteria for the 84332C? A: The substitute part must maintain the 3.3 µH inductance value within ±20% tolerance, operate across -40°C to 125°C, provide unshielded configuration, and support surface mount assembly. Both parts meet these requirements.

Q: Can the Bourns SDR0403-3R3ML be used as a direct replacement? A: Electrical substitution is valid based on matching inductance, tolerance, temperature range, and shielding configuration. Physical dimensions differ slightly; PCB layout compatibility must be confirmed before implementation.

Q: What is the impact of the lower DC resistance in the substitute part? A: The Bourns SDR0403-3R3ML exhibits 58mOhm maximum DC resistance compared to 120mOhm maximum in the Murata part, resulting in reduced power dissipation and improved thermal performance in the same current application.

Q: Are there packaging or moisture sensitivity differences? A: Both parts are supplied in Tape & Reel packaging and classified as Moisture Sensitivity Level 1 (Unlimited shelf life). No special handling requirements differentiate the two parts.

Q: What dimensional considerations apply to PCB layout? A: The substitute part is 0.027" wider (4.00mm vs. 3.30mm) and 0.024" taller (4.60mm vs. 2.90mm). Verify clearance around the component location and confirm no interference with adjacent components or solder mask patterns.