DEM8045Z-2R2N=P3 Equivalent & Substitute Parts

Part Overview

The DEM8045Z-2R2N=P3 is a 2.2 µH shielded drum core wirewound inductor manufactured by Murata Electronics. This surface mount component is designed for automotive applications with AEC-Q200 qualification and operates across the temperature range of -40°C to 125°C. The part is currently active in production with 1061 pieces available in inventory. Substitute parts are identified when equivalent inductance values, current ratings, and core materials are required but the original part becomes unavailable, obsolete, or when design flexibility permits alternative shielding configurations or tolerance specifications.

Substiute Parts

DEM8045Z-2R2N=P3

Murata ElectronicsIn Stock: 1112DEM8045Z-2R2N=P3 Datasheet

Current PartRFQ

SRN8040HA-2R2M

Bourns Inc.In Stock: 1922SRN8040HA-2R2M Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DEM8045Z-2R2N=P3 is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value of 2.2 µH
• Ferrite core material
• Surface mount configuration
• Nonstandard package dimensions compatible with 8.00mm x 8.00mm footprint
• AEC-Q200 automotive qualification

Secondary Compatibility Factors:

• Current rating of 6.3 A or higher (substitute must support the application's maximum current demand)
• DC resistance within acceptable limits for the circuit design
• Operating temperature range spanning -40°C minimum
• RoHS3 compliance and REACH unaffected status

The SRN8040HA-2R2M from Bourns Inc. qualifies as a substitute based on matching inductance, core material, surface mount type, automotive qualification, and regulatory compliance. Variations in shielding configuration (semi-shielded versus fully shielded), tolerance specification (±20% versus ±30%), and current rating (6.3 A versus 8.7 A) represent design trade-offs that must be evaluated within the specific circuit application.

Parameter Comparison

Engineering Selection Recommendations

DEM8045Z-2R2N=P3 (Primary Selection): Select this Murata part when the design requires a fully shielded inductor configuration with maximum current handling of 8.7 A and lower DC resistance of 9.96 mOhm maximum. This part is appropriate for applications sensitive to electromagnetic interference or where the higher current capacity is essential. The part maintains active production status with adequate inventory availability.

SRN8040HA-2R2M (Substitute Selection): The Bourns SRN8040HA-2R2M serves as a functional substitute when semi-shielded performance is acceptable and the application current requirement does not exceed 6.3 A continuous rating. This substitute offers tighter inductance tolerance (±20% versus ±30%), extended operating temperature range to 150°C, and higher saturation current (10.5 A). The trade-off involves increased DC resistance (14 mOhm maximum) and reduced shielding effectiveness. Both parts carry AEC-Q200 automotive qualification and ROHS3 compliance, ensuring regulatory and quality standards alignment.

Frequently Asked Questions (FAQ)

Q: Can the SRN8040HA-2R2M replace the DEM8045Z-2R2N=P3 in all applications?

A: Substitution depends on application-specific requirements. The Bourns part is suitable when continuous current demand does not exceed 6.3 A, semi-shielded performance meets electromagnetic compatibility needs, and the higher DC resistance (14 mOhm versus 9.96 mOhm) does not compromise circuit performance. Applications requiring the full 8.7 A current rating or complete shielding must use the Murata part.

Q: What is the difference between shielded and semi-shielded configurations?

A: The DEM8045Z-2R2N=P3 features full shielding, providing maximum electromagnetic interference suppression. The SRN8040HA-2R2M employs semi-shielded construction, which reduces but does not eliminate radiated emissions. Selection depends on circuit layout sensitivity and EMI requirements.

Q: Are both parts qualified for automotive use?

A: Yes. Both the DEM8045Z-2R2N=P3 and SRN8040HA-2R2M carry AEC-Q200 qualification, confirming suitability for automotive applications within their specified operating temperature ranges.

Q: How do the inductance tolerances affect circuit design?

A: The DEM8045Z-2R2N=P3 specifies ±30% tolerance, while the SRN8040HA-2R2M specifies ±20% tolerance. Tighter tolerance in the Bourns part reduces inductance variation across production batches. Circuit designs sensitive to inductance drift require evaluation of tolerance impact on performance specifications.

Q: What are the physical dimension differences?

A: The DEM8045Z-2R2N=P3 measures 8.00mm L x 8.00mm W x 4.50mm H. The SRN8040HA-2R2M measures 8.15mm L x 7.90mm W x 4.20mm H. Both fit nonstandard surface mount packages with minimal dimensional variation suitable for most PCB layouts.

Q: Do both parts require the same moisture sensitivity precautions?

A: Both parts carry MSL (Moisture Sensitivity Level) 1, indicating unlimited shelf life without moisture control requirements. Standard handling and storage practices apply to both components.