IHD3EB391L Equivalent & Substitute Parts

Part Overview

The IHD3EB391L is a 390 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 1.6 A continuous current with a maximum DC resistance of 288 mOhm. This through-hole axial component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1103 units in stock. Substitute parts are identified when equivalent inductance values, core materials, mounting types, and electrical ratings align within acceptable tolerance ranges for the application.

Substiute Parts

IHD3EB391L

Vishay DaleIn Stock: 1118IHD3EB391L Datasheet

Current PartRFQ

5900-391-RC

Bourns Inc.In Stock: 23335900-391-RC Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The substitute part 5900-391-RC (Bourns Inc.) qualifies as an equivalent based on the following alignment of critical parameters:

• Inductance Match: Both parts specify 390 µH at 1 kHz test frequency
• Core Type: Both utilize ferrite drum core construction
• Shielding Configuration: Both are unshielded designs
• Mounting Architecture: Both are through-hole axial components
• Physical Footprint: Dimensions are within 0.007" diameter and identical length (0.900" L)
• Compliance Standards: Both are ROHS3 compliant and REACH unaffected

Substitution is valid where the application tolerates the parameter variations listed in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Selection between IHD3EB391L and 5900-391-RC is determined by application current requirements and operating temperature constraints:

• IHD3EB391L: Select when continuous current demand reaches 1.6 A or when operating temperatures exceed 105°C (up to 125°C maximum). Lower DC resistance (288 mOhm) reduces power dissipation in high-current applications.

• 5900-391-RC: Select when continuous current requirements do not exceed 1.2 A and operating temperature remains within -55°C to 105°C. Tighter inductance tolerance (±10% vs ±15%) provides improved value stability where precision is required.

Both parts maintain ROHS3 compliance and REACH unaffected status, supporting equivalent regulatory qualification pathways.

Frequently Asked Questions (FAQ)

Q: Can 5900-391-RC replace IHD3EB391L in all applications?

A: Substitution is valid only when the application current requirement does not exceed 1.2 A continuous and operating temperature remains within -55°C to 105°C. If either parameter exceeds these limits, the IHD3EB391L is required.

Q: What is the impact of the 22 mOhm DC resistance difference?

A: The 5900-391-RC exhibits 310 mOhm maximum DC resistance versus 288 mOhm for the IHD3EB391L. This 22 mOhm difference results in increased power dissipation proportional to I²R losses. At 1.2 A, this represents approximately 3.3 mW additional dissipation in the substitute part.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts are axial through-hole components with identical 0.900" length. Diameter difference is 0.007" (11.68mm vs 11.51mm), which is negligible for standard PCB hole spacing. Both fit standard 0.100" grid layouts.

Q: Does inductance tolerance affect circuit performance?

A: The 5900-391-RC provides ±10% tolerance versus ±15% for IHD3EB391L. Applications requiring tighter inductance control benefit from the Bourns part. Applications with wider tolerance margins accept either part.

Q: What packaging format is supplied?

A: IHD3EB391L is supplied in bulk packaging; 5900-391-RC is supplied in tray packaging. Both are through-hole components suitable for manual or automated assembly.