PD54R-473K

Part Overview

The PD54R-473K is a 47 µH unshielded drum core, wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications with a current rating of 720 mA and a maximum DC resistance of 370mOhm. The component operates across a temperature range of -55°C to 125°C and is compliant with ROHS3 and REACH standards. This part is currently active in production. Alternative components become necessary when tape & reel packaging is unavailable, inventory constraints exist, or when cut tape & digi-reel packaging is preferred for specific manufacturing processes.

Substiute Parts

PD54R-473K

API Delevan Inc.In Stock: 793PD54R-473K Datasheet

Current PartRFQ

SDR0604-470KL

Bourns Inc.In Stock: 10132SDR0604-470KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PD54R-473K must meet the following critical electrical and mechanical parameters to ensure functional equivalence:

Electrical Parameters (Non-Negotiable):

• Inductance: 47 µH at 1 kHz test frequency
• Inductance Tolerance: ±10%
• Current Rating: 720 mA minimum
• DC Resistance: 370mOhm maximum

Mechanical Parameters (Non-Negotiable):

• Type: Drum Core, Wirewound
• Core Material: Ferrite
• Shielding: Unshielded
• Mounting Type: Surface Mount
• Core Temperature Range: -55°C to 125°C minimum (substitute may operate to higher temperatures)

Compliance Parameters:

• RoHS3 Compliant
• REACH Unaffected status

The SDR0604-470KL from Bourns Inc. qualifies as a direct substitute because it matches all critical electrical specifications, employs identical core technology, and maintains full regulatory compliance. Dimensional variations within the nonstandard package class and packaging format differences do not affect electrical performance or functional substitution in this application category.

Parameter Comparison

Engineering Selection Recommendations

For Continued Use of PD54R-473K: Select this component when tape & reel packaging is required for automated assembly processes and when the extended lower temperature rating of -55°C is critical for the application. The PD54R-473K carries ROHS3 compliance and is actively manufactured.

For Substitution with SDR0604-470KL: The SDR0604-470KL from Bourns Inc. is electrically equivalent and can replace the PD54R-473K in applications where packaging format flexibility is acceptable. This substitute offers higher saturation current (1A versus 720mA), providing additional design margin in current handling. The SDR0604-470KL is supplied in Cut Tape and Digi-Reel packaging formats and is ROHS3 compliant. Applications requiring temperatures below -40°C must retain the original PD54R-473K specification.

Both components demonstrate active production status and full regulatory compliance, making either selection viable based on packaging requirements and temperature operating range constraints.

Frequently Asked Questions (FAQ)

Q: Can the SDR0604-470KL replace the PD54R-473K in all applications?

A: The SDR0604-470KL is electrically equivalent for inductance, current rating, and DC resistance specifications. The primary substitution constraint is the operating temperature range: the SDR0604-470KL operates from -40°C to 125°C, while the PD54R-473K extends to -55°C. Applications requiring operation below -40°C must use the PD54R-473K. Packaging format also differs: the PD54R-473K uses tape & reel, while the SDR0604-470KL uses cut tape and digi-reel.

Q: How do dimensional differences affect substitution?

A: The components have similar but distinct package dimensions. The PD54R-473K measures 0.224" x 0.201" (5.70mm x 5.11mm) with a height of 0.177" (4.50mm), while the SDR0604-470KL measures 0.228" x 0.228" (5.80mm x 5.80mm) with a height of 0.189" (4.80mm). These dimensional variations fall within the nonstandard package classification and do not affect electrical performance. PCB layout verification is necessary to confirm clearance compatibility before substitution.

Q: What are the key electrical equivalence criteria?

A: Substitution is valid when inductance (47 µH), inductance tolerance (±10%), current rating (720 mA minimum), and DC resistance (370mOhm maximum) are matched. Both the PD54R-473K and SDR0604-470KL meet these criteria identically. The SDR0604-470KL provides additional design margin with 1A saturation current compared to the PD54R-473K's 720mA.

Q: Are there any compliance or regulatory differences?

A: Both components are ROHS3 compliant and classified as REACH Unaffected. Moisture sensitivity level is identical at MSL 1 (Unlimited) for both parts. No compliance or regulatory distinction exists between the two options.

Q: What packaging consideration should influence my selection?

A: The PD54R-473K arrives in tape & reel (TR) format, optimized for high-volume automated assembly. The SDR0604-470KL is supplied in cut tape (CT) and digi-reel formats, offering flexibility for lower-volume or mixed-assembly scenarios. Packaging selection depends on manufacturing process requirements and order quantities rather than component performance.