IDC7328ER331M Equivalent & Substitute Parts

Part Overview

The IDC7328ER331M is a 330 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 1 A continuous current with a maximum DC resistance of 560 mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for surface mount applications.

Substiute Parts

IDC7328ER331M

Vishay DaleIn Stock: 878IDC7328ER331M Datasheet

Current PartRFQ

P0250.334NLT

Pulse ElectronicsIn Stock: 4564P0250.334NLT Datasheet

DirectRFQ

SDR1806-331KL

Bourns Inc.In Stock: 1532SDR1806-331KL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the IDC7328ER331M are qualified based on the following electrical and mechanical criteria:

Primary Substitution Criteria:

• Inductance value: 330 µH (tolerance range acceptable within ±20%)
• Current rating: 1 A minimum
• DC resistance: 560 mOhm maximum
• Saturation current: 1.8 A minimum
• Mounting type: Surface Mount
• Shielding configuration: Unshielded
• Operating temperature range: Minimum -40°C to 125°C
• RoHS3 compliance required

Identified Substitute Parts:

1. P0250.334NLT (Pulse Electronics) - Direct electrical equivalent with tighter tolerance
2. SDR1806-331KL (Bourns Inc.) - Manufacturer recommended substitute with improved specifications

Parameter Comparison

Engineering Selection Recommendations

All three parts maintain Active product status and ROHS3 compliance. Selection between the main part and substitutes is determined by availability, packaging requirements, and tolerance specifications.

IDC7328ER331M (Vishay Dale): Primary choice with standard ±20% tolerance and Tape & Reel packaging. Suitable for general applications where tolerance and packaging format are not constrained.

P0250.334NLT (Pulse Electronics): Direct substitute with improved ±15% inductance tolerance and identical DC resistance specification. Maintains Tape & Reel packaging. Extended operating temperature range to 130°C provides additional thermal margin.

SDR1806-331KL (Bourns Inc.): Manufacturer recommended substitute with tightest ±10% inductance tolerance and enhanced Q factor specification (18 @ 796 kHz). DC resistance specification is 580 mOhm maximum, representing a 20 mOhm increase from the primary part. Available in Cut Tape and Digi-Reel® packaging formats. Saturation current is 1.8 A, meeting minimum substitution criteria.

Frequently Asked Questions (FAQ)

Q: Can P0250.334NLT be used as a direct replacement for IDC7328ER331M?

A: Yes. P0250.334NLT meets all primary substitution criteria: 330 µH inductance, 1 A current rating, 560 mOhm maximum DC resistance, and 1.9 A saturation current. The ±15% tolerance is tighter than the original ±20%, providing improved inductance accuracy. Both parts use identical Tape & Reel packaging.

Q: What are the differences between SDR1806-331KL and the original IDC7328ER331M?

A: SDR1806-331KL provides tighter inductance tolerance (±10% versus ±20%), includes Q factor specification (18 @ 796 kHz), and specifies self-resonant frequency (4.6 MHz). DC resistance is 580 mOhm maximum, 20 mOhm higher than the original specification. Saturation current is 1.8 A versus 1.9 A. Packaging format differs: Cut Tape and Digi-Reel® versus Tape & Reel.

Q: Are there packaging compatibility considerations?

A: IDC7328ER331M and P0250.334NLT both use Tape & Reel (TR) packaging. SDR1806-331KL uses Cut Tape (CT) and Digi-Reel® packaging. Verify that your assembly equipment supports the selected packaging format before implementation.

Q: Do all substitute parts support the same operating temperature range?

A: IDC7328ER331M and SDR1806-331KL both operate from -40°C to 125°C. P0250.334NLT extends to -40°C to 130°C, providing additional thermal headroom for high-temperature applications.

Q: Which substitute part offers the best inductance accuracy?

A: SDR1806-331KL provides the tightest inductance tolerance at ±10%, compared to ±15% for P0250.334NLT and ±20% for IDC7328ER331M. Select SDR1806-331KL when inductance accuracy is a critical design parameter.