PD75R-224K Equivalent & Substitute Parts

Part Overview

The PD75R-224K is a 220 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 490 mA with a maximum DC resistance of 720 mOhm. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The part operates across an extended temperature range of -55°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

PD75R-224K

API Delevan Inc.In Stock: 1203PD75R-224K Datasheet

Current PartRFQ

22R224MC

Murata Power Solutions Inc.In Stock: 86122R224MC Datasheet

SimilarRFQ

SDR0805-221KL

Bourns Inc.In Stock: 3671SDR0805-221KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD75R-224K is determined by the following critical parameters:

• Inductance Value: 220 µH (±10% tolerance)
• Current Rating: Minimum 490 mA
• DC Resistance: Maximum 720 mOhm
• Shielding Configuration: Unshielded
• Mounting Type: Surface Mount
• Temperature Range: Must support -55°C to 125°C operation
• Regulatory Compliance: ROHS3 Compliant

Two substitute parts meet these criteria with acceptable parameter variations within engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

22R224MC (Murata Power Solutions Inc.): This substitute maintains the 220 µH inductance and ±10% tolerance with a current rating of 500 mA, exceeding the original 490 mA requirement. The DC resistance of 830 mOhm is higher than the original 720 mOhm specification. The operating temperature range of -40°C to 85°C is narrower than the original part, limiting use in applications requiring the full -55°C to 125°C range. This part is currently active and ROHS3 compliant.

SDR0805-221KL (Bourns Inc.): This substitute matches the original part's 220 µH inductance, ±10% tolerance, and 490 mA current rating. The DC resistance of 960 mOhm exceeds the original specification. The operating temperature range of -40°C to 125°C covers the upper temperature limit of the original part but does not extend to -55°C. This part is currently active, ROHS3 compliant, and features ferrite drum core construction identical to the original.

Selection between substitutes depends on application-specific requirements regarding temperature extremes and DC resistance tolerance. Both substitutes are active products with established supply chains and regulatory compliance.

Frequently Asked Questions (FAQ)

Q: Can the 22R224MC be used in applications requiring -55°C operation? A: No. The 22R224MC operating temperature range is -40°C to 85°C, which does not extend to -55°C. Applications requiring the full -55°C to 125°C range must use the SDR0805-221KL or identify alternative sources.

Q: What is the impact of higher DC resistance in the substitute parts? A: The 22R224MC has 830 mOhm DCR (110 mOhm higher than original) and the SDR0805-221KL has 960 mOhm DCR (240 mOhm higher than original). Higher DC resistance increases power dissipation and heat generation at rated current. Circuit thermal analysis is required to confirm acceptability in the target application.

Q: Are both substitute parts surface mount compatible? A: Yes. Both the 22R224MC and SDR0805-221KL are surface mount inductors with nonstandard package dimensions. Physical layout verification is required to confirm fit within the PCB footprint.

Q: Do the substitute parts meet the same regulatory requirements? A: Yes. Both substitute parts are ROHS3 compliant, REACH unaffected, and classified as EAR99 with the same HTSUS code (8504.50.4000) as the original part.

Q: Which substitute is the closest electrical match to the PD75R-224K? A: The SDR0805-221KL provides the closest match, with identical inductance, tolerance, current rating, and ferrite drum core construction. The primary trade-off is the higher DC resistance and narrower low-temperature operating range.