PD104R-183K Equivalent & Substitute Parts Reference

Part Overview

The PD104R-183K is an 18 µH unshielded drum core wirewound inductor manufactured by API Delevan Inc., designed for surface mount applications requiring 1.8 A current rating with 80 mOhm maximum DC resistance. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent inductance values, compatible current ratings, and matching package form factors are required for design flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

PD104R-183K

API Delevan Inc.In Stock: 819PD104R-183K Datasheet

Current PartRFQ

SDR1006-180ML

Bourns Inc.In Stock: 2438SDR1006-180ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PD104R-183K is determined by the following criteria:

Primary Matching Parameters:

• Inductance value: 18 µH (exact match required)
• Core material and type: Ferrite drum core, unshielded
• Mounting technology: Surface mount
• Package form factor: Nonstandard drum core geometry

Secondary Compatibility Parameters:

• Current rating: Substitute must equal or exceed 1.8 A minimum
• DC resistance: Substitute must not exceed 80 mOhm maximum
• Operating temperature range: Substitute must cover or exceed −55°C to 125°C
• Compliance: ROHS3 and REACH status alignment

The SDR1006-180ML from Bourns Inc. qualifies as a substitute based on matching inductance (18 µH), ferrite drum core construction, surface mount configuration, and superior current rating (2.15 A) and saturation current (3.8 A). Both parts operate within compatible temperature ranges and maintain ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

PD104R-183K Selection Criteria:

• Applications requiring extended low-temperature operation (−55°C minimum)
• Designs with strict DC resistance budget (80 mOhm maximum)
• Space-constrained layouts requiring minimum height profile (4.00 mm)
• Specifications demanding ±10% inductance tolerance

SDR1006-180ML Selection Criteria:

• Applications with higher current margin requirements (2.15 A rated, 3.8 A saturation)
• Designs where −40°C minimum temperature is acceptable
• Layouts tolerating slightly increased height (5.80 mm) and width (9.80 mm)
• Specifications accepting ±20% inductance tolerance

Both parts maintain Active product status, ROHS3 compliance, and REACH unaffected designation, ensuring regulatory alignment for current and future applications.

Frequently Asked Questions (FAQ)

Q: Can SDR1006-180ML directly replace PD104R-183K in all applications?

A: Direct replacement is possible when the application does not require the PD104R's extended low-temperature range (−55°C) or strict DC resistance limit (80 mOhm). The SDR1006-180ML provides higher current capacity (2.15 A vs. 1.8 A) and saturation current (3.8 A vs. 1.8 A), making it suitable for higher-stress applications. Verify PCB layout clearance for the increased height (5.80 mm vs. 4.00 mm).

Q: What is the impact of the inductance tolerance difference (±10% vs. ±20%)?

A: The PD104R-183K offers tighter tolerance (±10%), resulting in inductance values between 16.2 µH and 19.8 µH. The SDR1006-180ML tolerance (±20%) produces values between 14.4 µH and 21.6 µH. Applications with critical frequency response or resonant circuit tuning should specify the PD104R-183K. General filtering and energy storage applications typically tolerate the broader SDR1006-180ML range.

Q: Are there dimensional compatibility issues between these parts?

A: Both parts use nonstandard drum core packages with identical length (9.80 mm). The SDR1006-180ML is 1.01 mm wider (9.80 mm vs. 8.79 mm) and 1.80 mm taller (5.80 mm vs. 4.00 mm). Verify PCB footprint and 3D clearance before substitution, particularly in space-constrained designs or high-density layouts.

Q: Which part should be selected for low-temperature applications?

A: The PD104R-183K is specified for −55°C to 125°C operation, while the SDR1006-180ML operates from −40°C to 125°C. Applications requiring operation below −40°C must use the PD104R-183K. Verify actual thermal requirements against circuit design specifications.

Q: How do DC resistance differences affect circuit performance?

A: The PD104R-183K maximum DC resistance is 80 mOhm; the SDR1006-180ML is 90 mOhm. In high-current applications (near 1.8 A), the 10 mOhm difference produces approximately 18 mW additional power dissipation in the SDR1006-180ML. Thermal management and efficiency-critical designs should account for this difference.

Q: Are both parts suitable for automated assembly?

A: Both parts are supplied in Tape & Reel (TR) packaging for surface mount assembly. Verify feeder compatibility with your pick-and-place equipment, as nonstandard drum core geometry may require custom feeder configuration.