IHB3EB331K Equivalent & Substitute Parts

Part Overview

The IHB3EB331K is a 330 µH unshielded wirewound inductor manufactured by Vishay Dale, rated for 3.2 A continuous current with a maximum DC resistance of 122 mOhm. This through-hole radial component is designed for applications requiring fixed inductance in power conversion, filtering, and signal conditioning circuits. Finding equivalent or substitute parts may be necessary due to inventory constraints, lead time considerations, or application-specific performance requirements while maintaining electrical and mechanical compatibility.

Substiute Parts

IHB3EB331K

Vishay DaleIn Stock: 1223IHB3EB331K Datasheet

Current PartRFQ

1130-331K-RC

Bourns Inc.In Stock: 13701130-331K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IHB3EB331K is determined by the following critical parameters:

• Inductance Value: Must be 330 µH to maintain circuit design specifications
• Current Rating: Substitute must support minimum 3.2 A; higher ratings provide design margin
• DC Resistance: Maximum 122 mOhm ensures acceptable power loss and thermal performance
• Mounting Type: Through-hole radial configuration required for PCB compatibility
• Shielding Classification: Unshielded designation must be maintained for electromagnetic compatibility with circuit layout

The substitute part 1130-331K-RC from Bourns Inc. meets all critical substitution criteria with equivalent inductance, matching DC resistance specification, and compatible through-hole radial package. The higher current rating (4.5 A vs. 3.2 A) provides additional design margin without compromising circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Both the IHB3EB331K and 1130-331K-RC are active products from established manufacturers with established supply chains. The 1130-331K-RC offers a higher current rating (4.5 A) compared to the main part specification (3.2 A), which provides additional thermal margin in applications operating near rated current limits. Both components maintain identical inductance values and DC resistance specifications, ensuring equivalent electrical performance in circuit operation. Selection between these parts should be based on availability, lead time, and physical space constraints within the PCB layout, as both meet the core electrical requirements for 330 µH fixed inductance applications.

Frequently Asked Questions (FAQ)

Q: Can the 1130-331K-RC directly replace the IHB3EB331K in my circuit?

A: Yes. Both components share identical inductance (330 µH) and DC resistance (122 mOhm maximum) specifications. The 1130-331K-RC has a higher current rating (4.5 A vs. 3.2 A), which is compatible with applications designed for the original part. Through-hole radial mounting is identical, allowing direct PCB footprint compatibility.

Q: What is the significance of the higher current rating on the substitute part?

A: The 1130-331K-RC is rated for 4.5 A continuous current versus 3.2 A for the IHB3EB331K. This higher rating indicates greater thermal capacity and lower saturation risk at equivalent current levels. For circuits operating at or near 3.2 A, the substitute provides additional design margin without changing electrical performance.

Q: Are there physical dimension differences between these parts?

A: The IHB3EB331K is specified as a vertical cylinder radial package, while the 1130-331K-RC is a drum core radial configuration. Both are through-hole mounted components. Physical dimensions should be verified against manufacturer datasheets if PCB space is constrained, though both are designed for standard radial inductor footprints.

Q: Do both parts meet the same compliance standards?

A: The 1130-331K-RC is specified as ROHS3 Compliant and REACH Unaffected. Compliance documentation for the IHB3EB331K should be verified with Vishay Dale. Both are active products from established manufacturers with established quality and reliability records.

Q: What core material differences exist between these inductors?

A: The IHB3EB331K uses wirewound construction on an unspecified core. The 1130-331K-RC uses a ferrite drum core with wirewound construction. Both are unshielded and designed for equivalent inductance performance at the specified frequency test point (1 kHz for the substitute).