IHA303BA Equivalent & Substitute Parts

Part Overview

The IHA303BA is a 27 µH unshielded drum core wirewound inductor manufactured by Vishay Dale, rated for 4.8 A continuous current with a maximum DC resistance of 40 mOhm. This through-hole axial component is designed for applications requiring fixed inductance in the mid-range frequency spectrum. The part is currently active in production with 1038 pieces available in new original stock, making it suitable for both prototype development and production deployment.

Equivalent substitute parts may be required due to supply chain constraints, regional availability, or inventory management in manufacturing environments where multiple qualified sources are necessary.

Substiute Parts

IHA303BA

Vishay DaleIn Stock: 1050IHA303BA Datasheet

Current PartRFQ

IHA303EB

Vishay DaleIn Stock: 748IHA303EB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The IHA303EB qualifies as a parametric equivalent to the IHA303BA based on identical electrical and mechanical specifications. Substitution is valid when the following criteria are met:

• Inductance value: 27 µH (exact match)
• Current rating: 4.8 A (exact match)
• DC resistance: 40 mOhm maximum (exact match)
• Core type: Drum core, wirewound (exact match)
• Shielding configuration: Unshielded (exact match)
• Mounting type: Through hole axial (exact match)
• Operating temperature range: -55°C to 125°C (exact match)
• Regulatory compliance: ROHS3 compliant (exact match)

Both parts belong to the Vishay Dale IHA series and share identical dimensional specifications (0.550" diameter × 0.800" length / 13.97 mm × 20.32 mm).

Parameter Comparison

Engineering Selection Recommendations

Both the IHA303BA and IHA303EB are active production parts from Vishay Dale with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on availability and supply chain requirements rather than technical performance, as they are electrically and mechanically identical.

The IHA303BA currently maintains higher inventory levels (1038 pieces) compared to the IHA303EB (710 pieces), making it the preferred choice for immediate procurement. The IHA303EB serves as a qualified alternative when primary stock is unavailable or when supply diversification is required for production continuity.

Frequently Asked Questions (FAQ)

Q: Can IHA303EB be used as a direct replacement for IHA303BA?

A: Yes. Both parts are identical in all electrical parameters (27 µH inductance, 4.8 A current rating, 40 mOhm DCR), core construction (drum core wirewound), shielding (unshielded), and mechanical specifications (axial through-hole, 0.550" × 0.800" dimensions). They are fully interchangeable in circuit applications.

Q: Are there any differences in performance between these two parts?

A: No. The IHA303BA and IHA303EB have identical electrical characteristics, frequency response, temperature ratings (-55°C to 125°C), and regulatory compliance (ROHS3). Performance in circuit operation is equivalent.

Q: What is the tolerance specification for inductance?

A: The inductance tolerance is ±10% for the IHA303EB. This specification applies to both equivalent parts in the IHA303 series.

Q: Are these parts suitable for high-frequency applications?

A: These are fixed inductors designed for general-purpose applications. The inductance test frequency is specified at 1 kHz. Applications requiring operation at significantly higher frequencies should verify self-resonant frequency and Q factor performance through detailed component datasheets.

Q: What is the moisture sensitivity level for these inductors?

A: Moisture sensitivity level (MSL) is not applicable for these through-hole wirewound inductors, indicating they do not require special moisture control during storage or handling.

Q: Are these parts available with different packaging options?

A: Both the IHA303BA and IHA303EB are supplied in axial through-hole package configuration only. No surface-mount or alternative packaging variants are available for this inductance value and current rating within the IHA series.