Murata Power Solutions 46684C Equivalent & Substitute Parts

Part Overview

The Murata Power Solutions 46684C is a 680 µH shielded wirewound inductor rated for 320 mA with a maximum DC resistance of 3.9Ohm, designed for surface mount applications in the 4600 series. This component is currently active in production with 1138 pieces available in new original stock. Equivalent and substitute parts are identified when design requirements permit tolerance of specified parameter variations while maintaining functional compatibility in target applications.

Substiute Parts

46684C

Murata Power SolutionsIn Stock: 115946684C Datasheet

Current PartRFQ

BPSC00070745681M00

Pulse ElectronicsIn Stock: 3872BPSC00070745681M00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Murata Power Solutions 46684C is permissible when the following criteria are met:

• Inductance value matches at 680 µH with ±20% tolerance specification
• Shielding classification remains shielded
• Surface mount mounting type is maintained
• Package footprint dimensions are identical: 0.287" L x 0.287" W (7.30mm x 7.30mm)
• Operating temperature range encompasses -40°C ~ 125°C minimum
• RoHS3 compliance and MSL 1 rating are preserved

The Pulse Electronics BPSC00070745681M00 meets these substitution criteria. Variations in current saturation rating (220mA vs. unspecified for main part), DC resistance (4.63Ohm vs. 3.9Ohm), and inductance test frequency (1 kHz vs. 10 kHz) are within acceptable engineering tolerances for this component category.

Parameter Comparison

Engineering Selection Recommendations

Both the Murata Power Solutions 46684C and Pulse Electronics BPSC00070745681M00 maintain active product status and full RoHS3 compliance with MSL 1 rating. Selection between these components should be based on application-specific current requirements and DC resistance tolerance. The Murata part specifies a 320 mA current rating with 3.9Ohm maximum DCR, while the Pulse Electronics substitute specifies 220 mA saturation current with 4.63Ohm maximum DCR. Packaging format differs between Cut Tape and Tape & Reel configurations. Inventory availability favors the Pulse Electronics option with 3765 pieces in stock versus 1138 pieces for the Murata part.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics BPSC00070745681M00 directly replace the Murata 46684C in all applications?

A: Direct replacement is permissible when application current requirements do not exceed 220 mA and the increased DC resistance of 4.63Ohm (versus 3.9Ohm) is acceptable for the circuit design. Identical inductance value, tolerance, shielding, footprint, and operating temperature range support functional compatibility.

Q: What is the significance of the different inductance test frequencies (10 kHz vs. 1 kHz)?

A: Inductance test frequency indicates the measurement condition under which the specified inductance value was characterized. Both components meet the ±20% tolerance specification at their respective test frequencies, ensuring inductance value consistency within the defined tolerance band.

Q: Does packaging format affect electrical performance?

A: No. Cut Tape (CT) and Tape & Reel (TR) packaging formats are mechanical delivery methods only and do not affect electrical characteristics, performance, or compatibility. Selection depends on assembly process requirements and inventory handling procedures.

Q: Are both parts suitable for the full -40°C ~ 125°C operating temperature range?

A: Yes. Both the Murata 46684C and Pulse Electronics BPSC00070745681M00 are rated for continuous operation across the -40°C ~ 125°C temperature range with no derating required within this specification.

Q: What compliance certifications apply to both substitute parts?

A: Both components are ROHS3 compliant, REACH unaffected, classified as EAR99 for export control purposes, and carry HTSUS code 8504.50.8000. Moisture sensitivity level is 1 (unlimited) for both parts, indicating no special moisture handling requirements during storage or assembly.