PM75-150K-RC Equivalent & Substitute Parts

Part Overview

The PM75-150K-RC is a 15 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 1.8 A continuous current with a maximum DC resistance of 90 mOhm. This component is designed for surface mount applications requiring fixed inductance in the microhenry range with ferrite core construction. The part is currently active in production with ROHS3 compliance and unlimited moisture sensitivity rating. 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

PM75-150K-RC

Bourns Inc.In Stock: 855PM75-150K-RC Datasheet

Current PartRFQ

SDR0805-150ML

Bourns Inc.In Stock: 5075SDR0805-150ML Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the PM75-150K-RC are qualified based on the following critical parameters:

• Inductance Value: 15 µH (exact match required)
• Current Rating: 1.8 A minimum (saturation current 2.7 A minimum)
• DC Resistance: 90 mOhm maximum
• Core Type: Ferrite, unshielded drum core wirewound construction
• Mounting: Surface mount, nonstandard package
• Physical Dimensions: 0.307" diameter (7.80mm), height 0.209" (5.30mm) maximum
• Operating Temperature: -40°C to 125°C range
• Compliance: ROHS3 compliant, MSL 1 rating

The SDR0805-150ML meets all critical electrical and mechanical parameters. Tolerance variation (±20% vs. ±10%) is within acceptable substitution criteria for this inductance category when circuit design permits.

Parameter Comparison

Engineering Selection Recommendations

Both PM75-150K-RC and SDR0805-150ML are active production components from Bourns Inc. with identical ROHS3 compliance and MSL 1 ratings. Selection between these parts should be based on:

• Inductance Tolerance Requirements: The PM75-150K-RC provides ±10% tolerance, while the SDR0805-150ML provides ±20% tolerance. Applications requiring tighter inductance accuracy should specify the PM75-150K-RC.
• Availability and Lead Time: Inventory levels differ between part numbers. The SDR0805-150ML currently has higher stock availability (5000 pcs vs. 823 pcs).
• Series Compatibility: PM75-150K-RC belongs to the PM75 series; SDR0805-150ML belongs to the SDR0805 series. Design documentation should reflect the selected series.
• Regulatory Compliance: Both parts meet ROHS3 and REACH requirements with identical environmental ratings.

Frequently Asked Questions (FAQ)

Q: Can SDR0805-150ML be used as a direct replacement for PM75-150K-RC?

A: Yes, the SDR0805-150ML is electrically and mechanically compatible with the PM75-150K-RC. Both components share identical inductance values, current ratings, DC resistance, core material, shielding configuration, operating temperature range, and physical dimensions. The primary difference is inductance tolerance (±20% vs. ±10%).

Q: What is the difference in inductance tolerance between these parts?

A: The PM75-150K-RC has a tolerance of ±10%, while the SDR0805-150ML has a tolerance of ±20%. This means the PM75-150K-RC will maintain inductance values between 14.6 µH and 16.5 µH, while the SDR0805-150ML will maintain values between 12 µH and 18 µH. Circuit designs sensitive to inductance variation should account for this difference.

Q: Are the physical dimensions identical?

A: The dimensions are compatible. The PM75-150K-RC is specified as 0.307" diameter (7.80mm), while the SDR0805-150ML is specified as 0.307" length by 0.307" width (7.80mm x 7.80mm). Both have identical maximum seated height of 0.209" (5.30mm), ensuring PCB layout compatibility.

Q: Do both parts have the same current handling capability?

A: Yes. Both the PM75-150K-RC and SDR0805-150ML are rated for 1.8 A continuous current with a saturation current (Isat) of 2.7 A. DC resistance is identical at 90 mOhm maximum for both parts.

Q: Are there any compliance or environmental differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity ratings. Operating temperature ranges are identical at -40°C to 125°C.

Q: Which part should be selected for new designs?

A: Selection depends on specific design requirements. For applications requiring tighter inductance tolerance, specify PM75-150K-RC. For applications where ±20% tolerance is acceptable and higher availability is preferred, SDR0805-150ML is suitable. Both are active production components suitable for new designs.