IHB4EB330K Equivalent & Substitute Parts

Part Overview

The IHB4EB330K is a 33 µH unshielded wirewound inductor manufactured by Vishay Dale, rated for 14.4 A continuous current with a maximum DC resistance of 11 mOhm. This through-hole radial component is designed for applications requiring fixed inductance in a vertical cylinder package format. Finding equivalent substitute parts becomes necessary when managing inventory constraints, ensuring supply chain continuity, or optimizing procurement across multiple qualified suppliers.

Substiute Parts

IHB4EB330K

Vishay DaleIn Stock: 1161IHB4EB330K Datasheet

Current PartRFQ

1140-330K-RC

Bourns Inc.In Stock: 12321140-330K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 1140-330K-RC from Bourns Inc. qualifies as a direct substitute based on the following critical parameters:

• Inductance Value: Both parts specify 33 µH, meeting the core functional requirement
• DC Resistance: Both maintain 11 mOhm maximum, ensuring equivalent power dissipation characteristics
• Shielding Configuration: Both are unshielded wirewound inductors
• Mounting Architecture: Both utilize through-hole radial mounting in vertical cylinder format
• Current Handling: The substitute part is rated for 15.8 A, which exceeds the main part's 14.4 A requirement, providing margin for thermal and operational headroom

The substitute part's higher current saturation rating (36.5 A vs. not specified for main part) and improved current capacity do not compromise compatibility and represent an acceptable alternative for the specified application envelope.

Parameter Comparison

Engineering Selection Recommendations

Selection between the IHB4EB330K and 1140-330K-RC should be based on the following criteria:

Primary Substitution Criteria:

• Both parts meet the 33 µH inductance and 11 mOhm DC resistance specifications
• The 1140-330K-RC is rated for higher continuous current (15.8 A vs. 14.4 A), making it suitable for applications operating at or near the upper current limits of the main part
• The 1140-330K-RC carries ROHS3 compliance certification, which may be required for certain end-market applications or regulatory jurisdictions

Compliance Considerations:

• The 1140-330K-RC is documented as Active product status with ROHS3 compliance and REACH unaffected designation
• Selection should align with your application's environmental and regulatory requirements

Inventory and Procurement:

• Both parts are available in stock (1138 Pcs for IHB4EB330K; 1122 Pcs for 1140-330K-RC)
• Packaging differences (not specified for main part vs. Bulk for substitute) may affect procurement workflows

Frequently Asked Questions (FAQ)

Q: Can the 1140-330K-RC directly replace the IHB4EB330K in my circuit?

A: Yes, provided your application operates within the specified inductance (33 µH) and DC resistance (11 mOhm maximum) parameters. The substitute part's higher current rating (15.8 A) does not create compatibility issues and provides additional operational margin.

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

A: The critical parameters are inductance value (33 µH), DC resistance (11 mOhm maximum), shielding configuration (unshielded), and mounting type (through-hole radial). Both parts match these specifications exactly.

Q: Does the higher current saturation rating of the 1140-330K-RC affect circuit performance?

A: No. The higher saturation current (36.5 A) of the substitute part represents improved performance headroom and does not negatively impact circuits designed for the original part's specifications.

Q: Are there packaging considerations when switching between these parts?

A: Both parts use identical through-hole radial vertical cylinder packaging. Physical board layout compatibility is maintained. Verify procurement packaging specifications (bulk vs. other formats) align with your assembly requirements.

Q: What compliance certifications should I verify for my application?

A: The 1140-330K-RC carries ROHS3 compliance and is REACH unaffected. Confirm these certifications meet your end-product regulatory requirements before final selection.