IHB4EB391K Equivalent & Substitute Parts

Part Overview

The IHB4EB391K is a 390 µH unshielded wirewound inductor manufactured by Vishay Dale, rated for 5.3 A continuous current with a maximum DC resistance of 82 mOhm. This through-hole radial component is designed for applications requiring fixed inductance in power conversion, filtering, and signal conditioning circuits. Finding equivalent substitute parts is necessary to ensure supply chain flexibility, optimize procurement costs, and maintain design continuity when the primary part becomes unavailable.

Substiute Parts

IHB4EB391K

Vishay DaleIn Stock: 916IHB4EB391K Datasheet

Current PartRFQ

1140-391K-RC

Bourns Inc.In Stock: 10291140-391K-RC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the IHB4EB391K is determined by the following critical parameters:

• Inductance Value: 390 µH (exact match required)
• Current Rating: Minimum 5.3 A (equal or higher acceptable)
• DC Resistance: 82 mOhm Max (equal or lower acceptable)
• Shielding Configuration: Unshielded (must match)
• Mounting Type: Through Hole (must match)
• Package Configuration: Radial orientation (must match)

The substitute part 1140-391K-RC from Bourns Inc. meets all substitution criteria with equivalent electrical performance and compatible physical form factor.

Parameter Comparison

Engineering Selection Recommendations

The 1140-391K-RC from Bourns Inc. is an active product suitable for direct substitution of the IHB4EB391K. The substitute part demonstrates superior current handling capability (5.8 A vs. 5.3 A) while maintaining identical inductance and DC resistance specifications. Both components are unshielded through-hole radial inductors with compatible physical form factors.

The 1140-391K-RC carries ROHS3 compliance and REACH Unaffected status, confirming regulatory alignment for industrial and commercial applications. The specified operating temperature range of -55°C to 105°C and saturation current of 10.4 A provide additional design margin for thermal and transient current conditions.

Physical dimensions differ slightly between the two designs due to core construction differences (vertical cylinder vs. drum core), requiring verification of PCB layout constraints and available mounting space before final selection.

Frequently Asked Questions (FAQ)

Q: Can the 1140-391K-RC replace the IHB4EB391K in existing designs?

A: Yes. Both components share identical inductance (390 µH) and DC resistance (82 mOhm Max) specifications. The substitute part's higher current rating (5.8 A) provides additional design margin. Physical dimensions must be verified against available PCB space.

Q: What are the critical parameters for substitution?

A: Inductance value, current rating, DC resistance, shielding configuration, mounting type, and radial package orientation must all be compatible. The 1140-391K-RC meets all these requirements.

Q: Does the substitute part have better performance characteristics?

A: The 1140-391K-RC provides higher saturation current (10.4 A) and a defined operating temperature range (-55°C to 105°C), offering greater design flexibility. DC resistance and inductance remain equivalent.

Q: Are there packaging or form factor differences?

A: Both components use through-hole radial mounting. The IHB4EB391K features a vertical cylinder core, while the 1140-391K-RC uses a drum core design. Physical dimensions differ; verify PCB layout compatibility.

Q: What compliance certifications apply to the substitute part?

A: The 1140-391K-RC is ROHS3 compliant and REACH Unaffected, meeting current regulatory requirements for industrial and commercial applications.