IMS05ST3R9K Equivalent & Substitute Parts

Part Overview

The IMS05ST3R9K is a 3.9 µH shielded molded inductor manufactured by Vishay Dale, designed for through-hole mounting applications. This component operates at a maximum current rating of 450 mA with a DC resistance of 400 mOhm maximum. The part belongs to the IMS-5 series and is currently in stock with 818 pieces available as new original inventory.

Finding equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across different procurement channels and manufacturing regions.

Substiute Parts

IMS05ST3R9K

Vishay DaleIn Stock: 847IMS05ST3R9K Datasheet

Current PartRFQ

9250A-392-RC

Bourns Inc.In Stock: 20879250A-392-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IMS05ST3R9K is determined by strict equivalence across the following critical parameters:

• Inductance Value: 3.9 µH (exact match required)
• Current Rating: 450 mA minimum
• DC Resistance: 400 mOhm maximum
• Shielding Type: Shielded configuration
• Core Material: Ferrite core
• Mounting Configuration: Through-hole axial package
• Operating Temperature Range: -55°C to 125°C

The substitute part 9250A-392-RC from Bourns Inc. meets all these critical parameters and is classified as a direct equivalent within the same electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The 9250A-392-RC from Bourns Inc. is an active product with full RoHS3 compliance and REACH unaffected status. This substitute part maintains electrical equivalence across all critical parameters: inductance value, current rating, DC resistance, and thermal operating range. The axial through-hole package configuration is identical, ensuring direct mechanical compatibility in PCB layouts.

Selection between the IMS05ST3R9K and 9250A-392-RC should be based on procurement availability, lead time requirements, and supply chain preferences, as both components meet the specified electrical and mechanical requirements for equivalent circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the 9250A-392-RC be used as a direct replacement for the IMS05ST3R9K?

A: Yes. Both components share identical inductance values (3.9 µH), current ratings (450 mA), DC resistance specifications (400 mOhm maximum), and through-hole axial package configurations. They are electrically and mechanically equivalent.

Q: Are there any differences in physical dimensions between these parts?

A: Both components are specified as axial through-hole packages. The 9250A-392-RC is dimensioned at 0.162" diameter × 0.410" length (4.11 mm × 10.41 mm). Identical physical compatibility is maintained for PCB mounting.

Q: What compliance certifications apply to the substitute part?

A: The 9250A-392-RC is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Q: Does inductance tolerance affect substitution suitability?

A: The 9250A-392-RC specifies ±10% inductance tolerance. Circuit designs must accommodate this tolerance range. If tighter tolerance is required, component selection should be verified against specific design specifications.

Q: Are both parts suitable for the same operating temperature range?

A: Yes. Both the IMS05ST3R9K and 9250A-392-RC operate across the -55°C to 125°C temperature range, ensuring thermal compatibility in equivalent applications.