PD54R-184K Equivalent & Substitute Parts

Part Overview

The PD54R-184K is a 180 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 370 mA continuous current with a maximum DC resistance of 1.33Ohm. 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 710 pieces available in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductor category.

Substiute Parts

PD54R-184K

API Delevan Inc.In Stock: 735PD54R-184K Datasheet

Current PartRFQ

SDR0604-181KL

Bourns Inc.In Stock: 2608SDR0604-181KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD54R-184K is determined by the following critical parameters:

Inductance value must be 180 µH with ±10% tolerance to maintain circuit performance. Current rating must meet or exceed 370 mA to ensure safe operation without thermal stress. DC resistance must not exceed 1.33Ohm to preserve power efficiency characteristics. Core material must remain ferrite-based unshielded drum core construction. Mounting configuration must be surface mount compatible. Operating temperature range must encompass the application requirements. RoHS and REACH compliance status must be maintained. Package classification must support equivalent PCB footprint integration.

The SDR0604-181KL from Bourns Inc. qualifies as a substitute based on matching inductance (180 µH), exceeding current rating requirements (380 mA vs. 370 mA), maintaining ferrite unshielded drum core construction, and preserving surface mount compatibility with equivalent compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the PD54R-184K and SDR0604-181KL maintain active product status with full ROHS3 compliance and REACH unaffected certification. The SDR0604-181KL provides a current rating margin of 10 mA above the minimum requirement and operates within a -40°C to 125°C range, which covers the upper temperature specification of the original part. DC resistance differential of 0.05Ohm maximum represents a 3.8% increase, remaining within acceptable tolerance for most applications. Both components feature identical inductance values, tolerance specifications, and core construction. Selection between these parts should be based on application-specific temperature floor requirements and acceptable DC resistance variance.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-181KL directly replace the PD54R-184K in all applications?

A: Substitution is valid when the application operating temperature does not require operation below -40°C. The SDR0604-181KL operates from -40°C to 125°C, compared to the PD54R-184K range of -55°C to 125°C. If the circuit requires -55°C operation, the original part is required.

Q: What is the significance of the 0.05Ohm DC resistance difference?

A: The SDR0604-181KL has a maximum DCR of 1.38Ohm versus 1.33Ohm for the PD54R-184K. This 3.8% increase affects power dissipation and thermal performance. For applications sensitive to inductor losses, verify that the higher resistance remains acceptable for the circuit design.

Q: Are the physical dimensions compatible for PCB layout?

A: The PD54R-184K measures 0.224" L x 0.201" W x 0.177" H (5.70mm x 5.11mm x 4.50mm). The SDR0604-181KL measures 0.228" L x 0.228" W x 0.189" H (5.80mm x 5.80mm x 4.80mm). Both are classified as nonstandard packages. Verify PCB footprint clearances and component placement constraints before substitution.

Q: Do both parts meet the same compliance requirements?

A: Yes. Both the PD54R-184K and SDR0604-181KL are ROHS3 compliant, REACH unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Compliance certifications are equivalent.

Q: What current margin exists with the substitute part?

A: The SDR0604-181KL is rated for 380 mA continuous current, providing a 10 mA margin above the PD54R-184K specification of 370 mA. This represents a 2.7% safety margin for the substitute part.