PD54R-123K Equivalent & Substitute Parts

Part Overview

The PD54R-123K is a 12 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 1.35 A continuous current with a maximum DC resistance of 130 mOhm. This surface mount component operates across the temperature range of -55°C to 125°C and is classified as Active product status with ROHS3 compliance. Substitute parts are identified when equivalent inductance values, current ratings, and core materials are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

PD54R-123K

API Delevan Inc.In Stock: 1092PD54R-123K Datasheet

Current PartRFQ

SDR0604-120ML

Bourns Inc.In Stock: 5062SDR0604-120ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PD54R-123K are identified based on the following critical parameters:

Primary Matching Criteria:

• Inductance value: 12 µH (exact match required)
• Core type: Drum core, wirewound ferrite (unshielded)
• Mounting type: Surface mount
• Current rating: Minimum 1.35 A continuous
• DC resistance: Within acceptable operating limits for the application

Secondary Compatibility Factors:

• Operating temperature range overlap with -55°C to 125°C specification
• RoHS3 compliance and REACH unaffected status
• Package classification: Nonstandard surface mount

The SDR0604-120ML from Bourns Inc. meets these substitution criteria with equivalent inductance, compatible current handling, and matching environmental compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

PD54R-123K Selection Criteria:

• Applications requiring the extended lower temperature limit of -55°C
• Designs where tighter inductance tolerance (±10%) is specified
• Existing inventory availability: 1,045 pieces in stock

SDR0604-120ML Selection Criteria:

• Applications operating within -40°C to 125°C range
• Higher saturation current requirement (1.9 A Isat vs. 1.35 A)
• Lower DC resistance specification (120 mOhm vs. 130 mOhm maximum)
• Larger inventory availability: 5,000 pieces in stock
• Wider inductance tolerance (±20%) acceptable for the application

Both parts maintain Active product status and full ROHS3 compliance with REACH unaffected designation, ensuring regulatory compliance across manufacturing and deployment environments.

Frequently Asked Questions (FAQ)

Q: Can SDR0604-120ML directly replace PD54R-123K in all applications?

A: Direct substitution is valid when the application tolerates the wider inductance tolerance (±20% vs. ±10%) and operates within the -40°C to 125°C temperature range. The SDR0604-120ML provides superior saturation current (1.9 A) and lower DC resistance (120 mOhm), making it suitable for most standard applications. Applications requiring the full -55°C lower temperature limit must retain the PD54R-123K.

Q: What are the physical dimension differences between these parts?

A: PD54R-123K dimensions are 0.224" L x 0.201" W x 0.177" H (5.70mm x 5.11mm x 4.50mm). SDR0604-120ML dimensions are 0.228" L x 0.228" W x 0.189" H (5.80mm x 5.80mm x 4.80mm). Both are classified as nonstandard package surface mount components. PCB layout verification is required when substituting due to dimensional variations.

Q: Are both parts qualified for the same compliance standards?

A: Yes. Both PD54R-123K and SDR0604-120ML are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 (Unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8504.50.4000.

Q: What is the significance of the saturation current difference?

A: The SDR0604-120ML has a saturation current (Isat) of 1.9 A compared to the PD54R-123K at 1.35 A. This indicates the SDR0604-120ML maintains inductance stability at higher current levels before magnetic saturation occurs, providing additional design margin in current-limited applications.

Q: How does inductance tolerance affect circuit performance?

A: The PD54R-123K specifies ±10% tolerance versus ±20% for SDR0604-120ML. In frequency-dependent circuits or precision filtering applications, the tighter tolerance of the PD54R-123K may be required. For general-purpose energy storage and filtering, the ±20% tolerance is typically acceptable.