PD104R-103K Equivalent & Substitute Parts

Part Overview

The PD104R-103K is a 10 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 2.38 A continuous current with a maximum DC resistance of 50 mOhm. This surface mount component operates across the temperature range of -55°C to 125°C and is ROHS3 compliant. The part is currently active in production with inventory availability. Substitute parts may be required due to supply constraints, lead time considerations, or specific application requirements within the defined electrical and mechanical parameter space.

Substiute Parts

PD104R-103K

API Delevan Inc.In Stock: 1097PD104R-103K Datasheet

Current PartRFQ

22R103MC

Murata Power Solutions Inc.In Stock: 113322R103MC Datasheet

SimilarRFQ

SDR1006-100KL

Bourns Inc.In Stock: 974SDR1006-100KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-103K is determined by the following critical parameters: inductance value (10 µH), inductance tolerance (±10%), current rating capability (minimum 2.38 A), DC resistance specification (maximum 50 mOhm), unshielded configuration, surface mount packaging, and compliance certifications (ROHS3, REACH Unaffected). Parts meeting these core electrical and mechanical criteria are classified as direct substitutes. Secondary considerations include operating temperature range, physical dimensions, and core material composition, which may affect application suitability but do not disqualify substitution within the defined parameter space.

Parameter Comparison

Engineering Selection Recommendations

Both 22R103MC and SDR1006-100KL meet the core electrical specifications for substitution with the PD104R-103K. The 22R103MC from Murata Power Solutions provides equivalent current rating (2.52 A) and DC resistance (50 mOhm) with identical inductance and tolerance specifications. However, its operating temperature range (-40°C to 85°C) is narrower than the original part, limiting use in applications requiring the full -55°C to 125°C range.

The SDR1006-100KL from Bourns Inc. offers the highest current rating (2.6 A) and maintains the full operating temperature range (-40°C to 125°C) of the original specification. The DC resistance specification is 60 mOhm maximum, which exceeds the original 50 mOhm limit by 10 mOhm and should be evaluated for thermal and efficiency impact in current-limited applications.

All three parts are ROHS3 compliant, REACH unaffected, and available in tape and reel packaging. Selection should be based on specific application requirements regarding temperature extremes and DC resistance tolerance.

Frequently Asked Questions (FAQ)

Q: Can the 22R103MC be used as a direct replacement for the PD104R-103K in all applications?

A: The 22R103MC is electrically compatible for inductance, tolerance, current rating, and DC resistance. However, applications requiring operation below -40°C or above 85°C must use the original PD104R-103K or the SDR1006-100KL, which supports the full -55°C to 125°C range.

Q: What is the significance of the 10 mOhm difference in DC resistance between the PD104R-103K and SDR1006-100KL?

A: The SDR1006-100KL specifies a maximum DC resistance of 60 mOhm compared to 50 mOhm for the original part. This 20% increase in resistance will result in proportionally higher resistive losses and heat generation at rated current. Applications with strict thermal or efficiency requirements should evaluate this parameter.

Q: Are all three parts available in the same physical package dimensions?

A: No. The PD104R-103K measures 0.386" L x 0.346" W x 0.157" H (9.80mm x 8.79mm x 4.00mm). The 22R103MC is smaller at 0.307" L x 0.276" W x 0.311" H (7.80mm x 7.00mm x 7.90mm). The SDR1006-100KL measures 0.386" L x 0.386" W x 0.228" H (9.80mm x 9.80mm x 5.80mm). PCB layout compatibility must be verified before substitution.

Q: Do all substitute parts carry the same compliance certifications?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with HTSUS code 8504.50.4000.

Q: Which substitute part is recommended for high-temperature applications?

A: The SDR1006-100KL supports the full -40°C to 125°C operating range matching the original part's upper temperature limit. The 22R103MC is limited to -40°C to 85°C and is not suitable for applications exceeding 85°C.