IDCS7328ER150M Equivalent & Substitute Parts

Part Overview

The IDCS7328ER150M is a 15 µH shielded drum core wirewound inductor manufactured by Vishay Dale, rated for 3.4 A continuous current with a maximum DC resistance of 48 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1141 pieces available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Substiute Parts

IDCS7328ER150M

Vishay DaleIn Stock: 1175IDCS7328ER150M Datasheet

Current PartRFQ

SRR1208-150ML

Bourns Inc.In Stock: 6157SRR1208-150ML Datasheet

MFR RecommendedRFQ

SRR1806-150M

Bourns Inc.In Stock: 1514SRR1806-150M Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IDCS7328ER150M are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Inductance value: 15 µH (within ±20% tolerance specification)
• Core type: Ferrite drum core, wirewound construction
• Shielding: Shielded configuration
• Current rating: Minimum 3.4 A continuous current capability
• DC resistance: Maximum 48 mOhm or lower
• Saturation current: Minimum 7 A
• Operating temperature range: -40°C to 125°C
• Mounting: Surface mount, nonstandard package
• Compliance: ROHS3 compliant, REACH unaffected

The two identified substitute parts meet these criteria while maintaining functional equivalence for applications requiring 15 µH inductance in shielded drum core wirewound construction.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the IDCS7328ER150M. The SRR1806-150M and SRR1208-150ML are both active production parts with established supply availability.

SRR1806-150M (Bourns Inc.): This substitute provides 3.6 A current rating and 39 mOhm maximum DC resistance, both superior to the original specification. Physical dimensions are 18.30 mm × 14.00 mm × 7.10 mm (height seated max), closely matching the IDCS7328ER150M footprint of 18.54 mm × 15.24 mm × 7.62 mm.

SRR1208-150ML (Bourns Inc.): This substitute provides 4 A current rating and 36 mOhm maximum DC resistance. Physical dimensions are 12.70 mm × 12.70 mm × 8.50 mm (height seated max), representing a more compact footprint than the original part.

Both substitutes exceed the saturation current requirement of 7 A and operate within the specified temperature range. Selection between substitutes depends on available board space and specific thermal management requirements of the application.

Frequently Asked Questions (FAQ)

Q: Can the SRR1806-150M directly replace the IDCS7328ER150M?

A: Yes. Both parts share identical inductance (15 µH), tolerance (±20%), core material (ferrite), shielding (shielded), and operating temperature range (-40°C to 125°C). The SRR1806-150M provides equal or superior electrical performance with lower DC resistance (39 mOhm vs. 48 mOhm) and higher current rating (3.6 A vs. 3.4 A). Physical dimensions are comparable, though PCB layout verification is required due to nonstandard package geometry.

Q: Can the SRR1208-150ML directly replace the IDCS7328ER150M?

A: Yes. Both parts meet the core electrical requirements: 15 µH inductance, ±20% tolerance, ferrite core, shielded configuration, and -40°C to 125°C operating range. The SRR1208-150ML exceeds performance specifications with 4 A current rating and 36 mOhm DC resistance. The smaller footprint (12.70 mm × 12.70 mm vs. 18.54 mm × 15.24 mm) may provide layout advantages but requires PCB design verification.

Q: What are the key electrical parameters that determine substitutability?

A: Substitutability is determined by: inductance value (15 µH), inductance tolerance (±20%), minimum current rating (3.4 A or higher), maximum DC resistance (48 mOhm or lower), minimum saturation current (7 A or higher), core material (ferrite), shielding type (shielded), and operating temperature range (-40°C to 125°C minimum).

Q: Are there physical dimension constraints for substitution?

A: Yes. All substitute parts use nonstandard package geometry. While the SRR1806-150M dimensions closely approximate the original part, the SRR1208-150ML is significantly smaller. PCB layout, component spacing, and thermal management considerations must be evaluated for each substitute before implementation.

Q: Do all parts meet the same compliance standards?

A: Yes. The IDCS7328ER150M, SRR1806-150M, and SRR1208-150ML are all ROHS3 compliant, REACH unaffected, and rated MSL 1 (Unlimited). All parts carry EAR99 ECCN classification and 8504.50.4000 HTSUS code.

Q: What is the difference in DC resistance between these parts?

A: The IDCS7328ER150M has 48 mOhm maximum DC resistance. The SRR1806-150M has 39 mOhm, and the SRR1208-150ML has 36 mOhm. Lower DC resistance reduces power dissipation and heat generation in the inductor, providing improved efficiency in the application circuit.