PD104R-472M Equivalent & Substitute Parts

Part Overview

The PD104R-472M is a 4.7 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., rated for 3 A continuous current with a maximum DC resistance of 40 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 662 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 product category.

Substiute Parts

PD104R-472M

API Delevan Inc.In Stock: 723PD104R-472M Datasheet

Current PartRFQ

SDR1006-4R7ML

Bourns Inc.In Stock: 2046SDR1006-4R7ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-472M is determined by the following critical parameters:

Inductance value must match at 4.7 µH with tolerance of ±20%. Current rating must equal or exceed 3 A to support the same load conditions. DC resistance must not exceed 40 mOhm to maintain equivalent power dissipation characteristics. Core material and shielding configuration must remain ferrite drum core unshielded. Mounting type must be surface mount compatible with nonstandard package dimensions. Operating temperature range must encompass or exceed -55°C to 125°C. RoHS3 compliance and MSL 1 rating must be maintained. All substitute parts must be active production status with documented availability.

Parameter Comparison

Engineering Selection Recommendations

The SDR1006-4R7ML from Bourns Inc. qualifies as a direct substitute for the PD104R-472M based on matching inductance value, tolerance, core type, and shielding configuration. The substitute part provides superior electrical performance with 4 A current rating versus 3 A, lower DC resistance of 36 mOhm versus 40 mOhm maximum, and higher saturation current of 7.3 A. Both parts maintain ROHS3 compliance and MSL 1 rating with active production status.

Physical dimensions require evaluation for board layout compatibility. The substitute part measures 0.386" x 0.386" width versus 0.386" x 0.346" for the main part, representing a 0.040" increase in width. Height difference of 0.071" (5.80mm versus 4.00mm) must be verified against available PCB clearance. Operating temperature range of the substitute extends to -40°C minimum versus -55°C for the main part; applications requiring operation below -40°C require the original PD104R-472M.

Frequently Asked Questions (FAQ)

Q: Can SDR1006-4R7ML replace PD104R-472M in all applications?

A: Electrical substitution is valid for applications operating at or above -40°C. Physical board layout must accommodate the increased width of 0.040" and height increase of 0.071". Verify PCB footprint and clearance before implementation.

Q: What are the key electrical differences between these parts?

A: Both parts provide identical 4.7 µH inductance with ±20% tolerance. The substitute offers improved performance with lower DC resistance (36 mOhm versus 40 mOhm) and higher current rating (4 A versus 3 A). Saturation current increases from 3 A to 7.3 A.

Q: Are there compliance or certification differences?

A: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Packaging format is identical at Tape & Reel (TR).

Q: What is the primary limitation of using the substitute part?

A: The operating temperature minimum of -40°C for SDR1006-4R7ML versus -55°C for PD104R-472M restricts use in extreme low-temperature applications. Physical dimensions require PCB layout verification.

Q: How do the Q factor and self-resonant frequency compare?

A: The substitute part specifies Q of 33 at 7.96 MHz and self-resonant frequency of 40 MHz. The main part does not provide these specifications in the available data.