CD75NP-390KC Equivalent & Substitute Parts

Part Overview

The CD75NP-390KC is a 39 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This fixed inductor is rated for 1.1 A continuous current with a maximum DC resistance of 160 mOhm and operates across the temperature range of -40°C to 100°C. The component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

CD75NP-390KC

Sumida America Components Inc.In Stock: 992CD75NP-390KC Datasheet

Current PartRFQ

SDR0805-390KL

Bourns Inc.In Stock: 5444SDR0805-390KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD75NP-390KC is permissible when the following critical parameters are maintained:

Electrical Equivalence Requirements:

• Inductance value: 39 µH (within ±10% tolerance)
• Current rating: minimum 1.1 A
• DC resistance: maximum 160 mOhm
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Compatibility Requirements:

• Mounting type: Surface Mount
• Package classification: Nonstandard
• Operating temperature range: minimum -40°C to 100°C coverage

Compliance Requirements:

• RoHS3 compliance mandatory
• Moisture Sensitivity Level: 1 (Unlimited)

The SDR0805-390KL from Bourns Inc. satisfies all substitution criteria through equivalent inductance, current rating, DC resistance, core material, and shielding specifications. Dimensional variations and enhanced performance characteristics (higher saturation current, defined Q factor, higher self-resonant frequency) do not preclude substitution when the primary electrical parameters are met.

Parameter Comparison

Engineering Selection Recommendations

CD75NP-390KC Selection Criteria:

• Primary choice when Sumida America Components Inc. supply chain is preferred
• Active product status with established inventory (899 Pcs available)
• ROHS3 compliant and MSL 1 rated for standard assembly processes
• Operating temperature range -40°C to 100°C suitable for standard industrial applications

SDR0805-390KL Selection Criteria:

• Alternative when Bourns Inc. supply chain offers superior availability (5400 Pcs in stock)
• Active product status with extended operating temperature range (-40°C to 125°C) for elevated temperature applications
• ROHS3 compliant and MSL 1 rated for standard assembly processes
• Enhanced electrical characterization (defined Q factor of 15 @ 2.52MHz, saturation current 1.7A, self-resonant frequency 10MHz) provides additional performance margin
• Drum core wirewound construction type differs from main part but maintains electrical equivalence

Both parts meet mandatory compliance requirements and are suitable for direct substitution in surface mount applications requiring 39 µH inductance at 1.1 A rating.

Frequently Asked Questions (FAQ)

Q: Can SDR0805-390KL replace CD75NP-390KC in production?

A: Yes. Both parts maintain identical inductance (39 µH ±10%), current rating (1.1 A), and DC resistance (160 mOhm max). Surface mount compatibility and RoHS3 compliance are equivalent. Dimensional differences (width 7.00mm vs 7.80mm, height 5.50mm vs 5.30mm) are minor and do not affect PCB layout compatibility for standard nonstandard package footprints.

Q: What are the key electrical parameters that determine substitution eligibility?

A: Substitution is determined by: inductance value (39 µH), inductance tolerance (±10%), current rating (minimum 1.1 A), DC resistance (maximum 160 mOhm), core material (ferrite), and shielding configuration (unshielded). All parameters must match or exceed the original specification.

Q: Does the extended temperature range of SDR0805-390KL affect compatibility?

A: No. The SDR0805-390KL operating range of -40°C to 125°C encompasses the CD75NP-390KC range of -40°C to 100°C. Extended temperature capability does not create incompatibility; it provides additional operational margin for applications requiring higher temperature performance.

Q: Are there differences in construction type between these parts?

A: Yes. The CD75NP-390KC uses standard ferrite core construction, while the SDR0805-390KL uses drum core wirewound construction. Despite this difference, both achieve identical electrical specifications for inductance, current rating, and DC resistance, making them functionally equivalent for circuit applications.

Q: What compliance certifications apply to both parts?

A: Both CD75NP-390KC and SDR0805-390KL are ROHS3 compliant and rated MSL 1 (Unlimited moisture sensitivity level). Both carry EAR99 export classification and HTSUS code 8504.50.4000. Compliance status is equivalent for both parts.

Q: Are there inventory considerations for part selection?

A: CD75NP-390KC has 899 pieces in stock, while SDR0805-390KL has 5400 pieces available. Selection may be influenced by supply chain requirements and lead time considerations, though both are classified as Active products with established availability.