CD75NP-391KC Equivalent & Substitute Parts

Part Overview

The CD75NP-391KC is a 390 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This fixed inductor is designed for applications requiring 360 mA current rating with a maximum DC resistance of 1.77 Ohm. The component operates across the temperature range of -40°C to 100°C and is RoHS3 compliant. Alternative equivalent parts may be required due to inventory availability, lead time considerations, or specific application requirements within the allowed electrical and mechanical parameter specifications.

Substiute Parts

CD75NP-391KC

Sumida America Components Inc.In Stock: 1094CD75NP-391KC Datasheet

Current PartRFQ

SDR0805-391KL

Bourns Inc.In Stock: 5262SDR0805-391KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD75NP-391KC is permissible with parts meeting the following criteria:

Critical Electrical Parameters (Must Match):

• Inductance: 390 µH at ±10% tolerance
• Current Rating: 360 mA minimum
• DC Resistance: 1.77 Ohm maximum
• Core Material: Ferrite
• Shielding: Unshielded

Critical Mechanical Parameters (Must Match):

• Mounting Type: Surface Mount
• Package Type: Nonstandard (as specified)
• Packaging Format: Tape & Reel (TR)

Compliance Parameters (Must Match):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

The SDR0805-391KL from Bourns Inc. satisfies all critical electrical, mechanical, and compliance parameters and qualifies as a direct equivalent substitute.

Parameter Comparison

Engineering Selection Recommendations

The SDR0805-391KL is a qualified direct equivalent substitute for the CD75NP-391KC. Both components are active products with ROHS3 compliance and identical electrical specifications for inductance, current rating, and DC resistance. The SDR0805-391KL offers an extended operating temperature range (-40°C to 125°C versus -40°C to 100°C), providing additional thermal margin in applications operating near the upper temperature limit. Both components maintain MSL Level 1 rating and are supplied in Tape & Reel packaging suitable for automated assembly processes. Selection between these parts may be based on availability, lead time, or specific thermal performance requirements within the stated operating ranges.

Frequently Asked Questions (FAQ)

Q: What electrical parameters must match for substitution of the CD75NP-391KC?

A: The inductance value (390 µH at ±10% tolerance), current rating (360 mA), DC resistance (1.77 Ohm maximum), core material (ferrite), and shielding type (unshielded) must all match exactly.

Q: Are there mechanical compatibility concerns when substituting the CD75NP-391KC with the SDR0805-391KL?

A: Both components are surface mount inductors in nonstandard packages supplied on Tape & Reel. The SDR0805-391KL has slightly different physical dimensions (0.307" L x 0.307" W versus 0.307" L x 0.276" W) and height (0.209" versus 0.217" seated height). PCB layout and clearance verification is required to confirm mechanical fit in the target application.

Q: Does the extended temperature range of the SDR0805-391KL affect substitution suitability?

A: The SDR0805-391KL operating range of -40°C to 125°C encompasses the CD75NP-391KC range of -40°C to 100°C. This extended range does not create incompatibility; it provides additional thermal margin and is suitable for applications within the original component's temperature specification.

Q: Are both parts RoHS compliant?

A: Yes, both the CD75NP-391KC and SDR0805-391KL are ROHS3 compliant with MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Can the SDR0805-391KL be used as a direct replacement in automated assembly?

A: Both components are supplied in Tape & Reel packaging suitable for automated pick-and-place assembly. Verify that the physical dimensions and height are compatible with the target PCB layout and component placement equipment.