IDCS7328ER151M Equivalent & Substitute Parts

Part Overview

The IDCS7328ER151M is a 150 µH shielded drum core wirewound inductor manufactured by Vishay Dale, rated for 1.3 A continuous current with a maximum DC resistance of 293 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 932 units 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

IDCS7328ER151M

Vishay DaleIn Stock: 946IDCS7328ER151M Datasheet

Current PartRFQ

ASPI-1306S-151M-T

Abracon LLCIn Stock: 997ASPI-1306S-151M-T Datasheet

MFR RecommendedRFQ

SRR1208-151KL

Bourns Inc.In Stock: 1842SRR1208-151KL Datasheet

MFR RecommendedRFQ

SRR1208-151YL

Bourns Inc.In Stock: 1498SRR1208-151YL Datasheet

MFR RecommendedRFQ

SRR1806-151M

Bourns Inc.In Stock: 2023SRR1806-151M Datasheet

MFR RecommendedRFQ

UP3B-151-R

Eaton - Electronics DivisionIn Stock: 1046UP3B-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the IDCS7328ER151M is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value: 150 µH (tolerance range ±20% = 120–180 µH)
• Current rating: minimum 1.3 A continuous
• DC resistance: maximum 293 mOhm
• Saturation current: minimum 2.1 A
• Core material: Ferrite
• Shielding: Shielded configuration

Mechanical Criteria:

• Surface mount package
• Operating temperature range: -40°C to 125°C minimum
• Footprint compatibility: 0.730" L x 0.600" W maximum

Compliance Criteria:

• ROHS3 compliant
• Active product status

Four substitute parts meet these criteria with allowable variations in inductance tolerance, DC resistance, saturation current, and package footprint dimensions.

Parameter Comparison

Engineering Selection Recommendations

ASPI-1306S-151M-T (Abracon LLC) – Direct electrical equivalent with identical inductance, current rating, and DC resistance specifications. Maintains shielded configuration and ROHS3 compliance. Operating temperature maximum of 85°C is lower than the primary part; applications requiring full -40°C to 125°C range should verify thermal requirements. Identical package footprint (18.54mm x 15.24mm) supports direct PCB layout compatibility.

SRR1208-151KL and SRR1208-151YL (Bourns Inc.) – Both variants meet electrical requirements with improved inductance tolerance (±10% and ±15% respectively) and lower DC resistance (240 mOhm). Saturation current of 1.72 A is lower than the primary part specification of 2.1 A; applications with transient current spikes above 1.72 A require evaluation. Smaller package footprint (12.70mm x 12.70mm) may require PCB layout modification. Full -40°C to 125°C operating range supported. ROHS3 compliant.

SRR1806-151M (Bourns Inc.) – Meets inductance and core material requirements with higher DC resistance (400 mOhm) and lower current rating (1.05 A). Saturation current of 2.3 A exceeds primary part specification. Suitable for applications with reduced current demands. Package footprint (18.30mm x 14.00mm) is similar to primary part with minor dimensional variation. Full -40°C to 125°C operating range and ROHS3 compliance maintained.

UP3B-151-R (Eaton Electronics Division) – Unshielded configuration differs from shielded primary part; electromagnetic interference characteristics will differ. Current rating of 1.2 A and saturation current of 1.4 A are both lower than primary specifications. Operating temperature maximum of 85°C limits high-temperature applications. Suitable only for applications where shielding is not required and thermal environment does not exceed 85°C. RoHS compliant (not ROHS3 specified).

Frequently Asked Questions (FAQ)

Q: Can SRR1208-151KL or SRR1208-151YL be used as direct drop-in replacements?

A: Electrical substitution is valid; however, the smaller package footprint (12.70mm x 12.70mm versus 18.54mm x 15.24mm) requires PCB layout modification. The lower saturation current (1.72 A) must be verified against circuit transient current requirements. Both parts support the full -40°C to 125°C operating range.

Q: Why is UP3B-151-R listed as a substitute if it is unshielded?

A: UP3B-151-R meets the core electrical parameters (150 µH inductance, 1.2 A current rating, similar DC resistance). Shielding status is a design parameter that must be evaluated based on application electromagnetic environment. Unshielded inductors are suitable for applications where EMI coupling is not a concern.

Q: What is the impact of different DC resistance values among substitutes?

A: DC resistance directly affects power dissipation and thermal performance. Lower DCR (240 mOhm in Bourns SRR1208 series) reduces I²R losses compared to the primary part (293 mOhm). Higher DCR (400 mOhm in SRR1806-151M) increases power dissipation. Circuit thermal analysis should account for these differences in high-current or continuous-duty applications.

Q: Are all substitutes ROHS3 compliant?

A: ASPI-1306S-151M-T, SRR1208-151KL, SRR1208-151YL, and SRR1806-151M are ROHS3 compliant. UP3B-151-R is RoHS compliant but ROHS3 status is not specified in available data.

Q: What is the significance of inductance tolerance differences?

A: The primary part specifies ±20% tolerance. SRR1208-151KL offers ±10% tolerance (tighter), and SRR1208-151YL offers ±15% tolerance. Tighter tolerances reduce inductance variation across production batches, beneficial for applications with strict frequency or impedance requirements. Looser tolerances (±20%) are acceptable for general filtering and energy storage applications.

Q: Can SRR1806-151M be used in high-current applications?

A: SRR1806-151M has a lower current rating (1.05 A) and saturation current (2.3 A) compared to the primary part (1.3 A and 2.1 A respectively). This part is suitable for applications with reduced current demands. Continuous current should not exceed 1.05 A to maintain reliable operation.