IHB3EB221K Equivalent & Substitute Parts

Part Overview

The IHB3EB221K is a 220 µH unshielded wirewound inductor manufactured by Vishay Dale, rated for 3.9 A continuous current with a maximum DC resistance of 80 mOhm. This through-hole radial component is designed for applications requiring fixed inductance in compact form factors. With 630 pieces in current inventory, substitute parts may be required due to lead time constraints, design optimization for higher current ratings, or supply chain considerations.

Substiute Parts

IHB3EB221K

Vishay DaleIn Stock: 677IHB3EB221K Datasheet

Current PartRFQ

1130-221K-RC

Bourns Inc.In Stock: 10411130-221K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The 1130-221K-RC from Bourns Inc. qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

• Inductance Match: Both parts specify 220 µH, meeting the core functional requirement
• DC Resistance Match: Both maintain 80 mOhm maximum DCR, ensuring equivalent power dissipation characteristics
• Shielding Configuration: Both are unshielded wirewound inductors, maintaining electromagnetic behavior consistency
• Mounting and Package: Both use through-hole radial vertical cylinder configuration, ensuring mechanical compatibility with existing PCB layouts
• Current Rating Enhancement: The substitute part is rated for 5.5 A, exceeding the original 3.9 A specification, providing design margin without compromising performance

The substitute relationship is based strictly on electrical equivalence (inductance and DCR) combined with mechanical interchangeability (package, mounting, and form factor).

Parameter Comparison

Engineering Selection Recommendations

Primary Part (IHB3EB221K): Select when Vishay Dale component availability is confirmed and the 3.9 A current rating is sufficient for the application.

Substitute Part (1130-221K-RC): Select when higher current margin is required or when Bourns Inc. supply chain availability is preferred. The ROHS3 compliance and documented operating temperature range (-55°C ~ 105°C) provide additional specification clarity for regulated applications. The higher current rating (5.5 A vs. 3.9 A) allows for thermal margin in continuous operation scenarios.

Both parts maintain electrical equivalence through matched inductance (220 µH) and DC resistance (80 mOhm max), ensuring circuit performance consistency.

Frequently Asked Questions (FAQ)

Q: Can the 1130-221K-RC directly replace the IHB3EB221K in existing designs?

A: Yes. Both inductors share identical inductance (220 µH), DC resistance (80 mOhm max), and through-hole radial vertical cylinder packaging. PCB footprints and circuit behavior remain unchanged.

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

A: The 1130-221K-RC is rated for 5.5 A compared to the original 3.9 A. This provides additional thermal headroom and design margin. If your application operates at or near 3.9 A, the substitute part reduces saturation risk and extends component life.

Q: Are there mechanical compatibility concerns?

A: No. Both parts use identical mounting types (through-hole) and package configurations (radial, vertical cylinder). Existing PCB layouts require no modification.

Q: Does the substitute part meet compliance requirements?

A: The 1130-221K-RC is ROHS3 compliant and REACH unaffected. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: What is the tolerance specification for inductance?

A: The 1130-221K-RC specifies ±10% inductance tolerance. The original part tolerance is not provided in available documentation.

Q: How do the DC resistance specifications compare?

A: Both parts specify 80 mOhm maximum DC resistance, ensuring equivalent power dissipation and thermal characteristics at rated current levels.