CD105NP-270MC Equivalent & Substitute Parts

Part Overview

The CD105NP-270MC is a 27 µH unshielded surface mount inductor manufactured by Sumida America Components Inc. This component is designed for applications requiring fixed inductance with a current rating of 1.76 A and a maximum DC resistance of 110mOhm. The part is classified as Active status and is RoHS3 compliant, making it suitable for modern electronic assemblies. Substitute parts are identified when equivalent electrical and mechanical parameters are available from alternative manufacturers, enabling procurement flexibility and supply chain continuity.

Substiute Parts

CD105NP-270MC

Sumida America Components Inc.In Stock: 1257CD105NP-270MC Datasheet

Current PartRFQ

SDR1006-270KL

Bourns Inc.In Stock: 19047SDR1006-270KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CD105NP-270MC is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 27 µH (tolerance variations acceptable within engineering design margins)
• Current rating: minimum 1.75 A (substitute must support the application current requirement)
• DC resistance: 110mOhm maximum (electrical loss parameter)
• Core material: Ferrite (determines magnetic properties and frequency response)
• Shielding classification: Unshielded (electromagnetic interference characteristics)

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount (assembly process compatibility)
• Package classification: Nonstandard (physical footprint and height constraints)
• Height - Seated: 5.80mm maximum (PCB clearance and assembly compatibility)

Compliance Criteria:

• RoHS3 compliance (regulatory requirement for modern electronics)
• Moisture Sensitivity Level: 1 (handling and storage requirements)

The substitute part SDR1006-270KL meets all critical electrical and mechanical parameters within acceptable engineering tolerances.

Parameter Comparison

Engineering Selection Recommendations

CD105NP-270MC Selection Criteria:

• Primary choice when Sumida component availability and supply chain continuity are prioritized
• Active product status ensures ongoing manufacturer support and documentation
• RoHS3 compliance and MSL Level 1 rating support standard manufacturing processes

SDR1006-270KL Selection Criteria:

• Substitute selection when Bourns supply chain offers improved availability or lead time
• Tighter inductance tolerance (±10% vs ±20%) provides enhanced circuit performance predictability
• Extended operating temperature range (-40°C ~ 125°C vs -40°C ~ 100°C) supports applications with elevated thermal requirements
• Active product status and RoHS3 compliance ensure regulatory and manufacturing compatibility
• Footprint dimensions (9.80mm x 9.80mm) represent minor variation from primary part; PCB layout verification required

Both parts are Active status products with full RoHS3 compliance and identical moisture sensitivity ratings, ensuring equivalent regulatory and manufacturing process compatibility.

Frequently Asked Questions (FAQ)

Q: What are the primary electrical parameters that determine substitution compatibility?

A: The critical electrical parameters are inductance value (27 µH), current rating (minimum 1.75 A), DC resistance (110mOhm maximum), core material (Ferrite), and shielding classification (Unshielded). All substitute parts must match these specifications within the tolerances provided in the input data.

Q: Can the SDR1006-270KL replace the CD105NP-270MC in existing designs?

A: The SDR1006-270KL meets all critical electrical and mechanical parameters. However, the footprint dimensions differ slightly (9.80mm x 9.80mm vs 10.00mm x 9.00mm). PCB layout verification is required to confirm that the substitute footprint accommodates the existing design without routing conflicts or clearance violations.

Q: What is the significance of the inductance tolerance difference?

A: The CD105NP-270MC has ±20% tolerance, while the SDR1006-270KL has ±10% tolerance. The tighter tolerance of the substitute part provides more predictable circuit performance and reduced variation in applications sensitive to inductance accuracy. This represents an improvement over the primary part specification.

Q: Are there temperature range considerations for substitution?

A: The CD105NP-270MC operates from -40°C to 100°C, while the SDR1006-270KL operates from -40°C to 125°C. The substitute part supports a wider temperature range. Applications operating above 100°C require the SDR1006-270KL; applications within the -40°C to 100°C range are compatible with both parts.

Q: What packaging and handling requirements apply to both parts?

A: Both parts are classified as Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture control requirements during storage or handling. Both are supplied in Tape & Reel packaging suitable for automated assembly processes. Both are RoHS3 compliant.

Q: How do the physical dimensions affect PCB design?

A: The CD105NP-270MC measures 10.00mm L x 9.00mm W with 5.80mm seated height. The SDR1006-270KL measures 9.80mm L x 9.80mm W with identical 5.80mm seated height. The substitute has a more square footprint. PCB layout files must be updated to reflect the footprint change, and clearance to adjacent components must be verified.