ELL-ATP150MB Equivalent & Substitute Parts

Part Overview

The Panasonic ELL-ATP150MB is a 15 µH shielded wirewound inductor rated for 2.7 A with 29 mOhm DC resistance, designed for surface mount applications in nonstandard corner terminal configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain the core electrical specifications while accommodating modern active component availability.

Substiute Parts

ELL-ATP150MB

Panasonic Electronic ComponentsIn Stock: 745ELL-ATP150MB Datasheet

Current PartRFQ

744770115

Würth ElektronikIn Stock: 4208744770115 Datasheet

SimilarRFQ

SRU1038-150Y

Bourns Inc.In Stock: 10133SRU1038-150Y Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ELL-ATP150MB is determined by the following critical parameters:

• Inductance Value: 15 µH (fixed requirement)
• Current Rating: Minimum 2.7 A (substitute must meet or exceed)
• DC Resistance: Maximum 29 mOhm preferred (lower values reduce power dissipation)
• Shielding: Shielded configuration required
• Mounting Type: Surface mount only
• Package Size: 10.00 mm × 10.00 mm footprint compatibility
• Compliance: ROHS3 compliant, MSL 1

The two identified substitute parts meet the inductance, shielding, and compliance requirements. Variations in current rating, DC resistance, and physical height must be evaluated against specific application constraints.

Parameter Comparison

Engineering Selection Recommendations

SRU1038-150Y (Bourns Inc.) is the primary substitute for the ELL-ATP150MB. This part maintains identical footprint dimensions (10.00 mm × 10.00 mm), comparable current rating (2.8 A vs. 2.7 A), and lower seated height (4.10 mm vs. 4.50 mm). The inductance tolerance widens to ±30%, and DC resistance increases to 37 mOhm. The part is active, ROHS3 compliant, and rated for -40°C to 125°C operation.

744770115 (Würth Elektronik) serves as an alternative for applications requiring higher current capacity (5 A rating, 6 A saturation). This part offers superior DC resistance (27 mOhm max) and lower power dissipation but requires PCB layout accommodation for increased footprint (12.00 mm × 12.00 mm) and height (8.00 mm). The part is active, ROHS3 compliant, and includes AEC-Q200 automotive qualification.

Both substitutes are actively manufactured, ensuring long-term supply availability compared to the obsolete ELL-ATP150MB.

Frequently Asked Questions (FAQ)

Q: Can the SRU1038-150Y directly replace the ELL-ATP150MB without PCB modification?

A: Yes. The SRU1038-150Y maintains the same 10.00 mm × 10.00 mm footprint and corner terminal configuration. The seated height difference (4.10 mm vs. 4.50 mm) is within typical PCB clearance tolerances. Electrical parameters (15 µH inductance, 2.8 A current rating) are compatible with the original specification.

Q: What are the implications of the ±30% inductance tolerance in the SRU1038-150Y versus ±20% in the ELL-ATP150MB?

A: The wider tolerance in the SRU1038-150Y may affect circuit performance in applications with tight inductance requirements. Verify that the application circuit design accommodates the extended tolerance range (10.5 µH to 19.5 µH) without performance degradation.

Q: Why does the 744770115 have a larger footprint?

A: The 744770115 uses a drum core construction with ferrite material, enabling higher current capacity (5 A) and lower DC resistance (27 mOhm max). The larger 12.00 mm × 12.00 mm footprint and 8.00 mm height accommodate this enhanced performance. PCB layout modification is required for this substitute.

Q: Are both substitutes suitable for automotive applications?

A: The 744770115 carries AEC-Q200 automotive qualification. The SRU1038-150Y does not list automotive certification in the provided specifications. Verify automotive compliance requirements against application standards before selection.

Q: What is the impact of increased DC resistance in the SRU1038-150Y?

A: The SRU1038-150Y DC resistance of 37 mOhm (versus 29 mOhm in the original) results in approximately 28% higher resistive losses at rated current. For 2.7 A operation, this represents an additional 0.21 mW of power dissipation. Evaluate thermal performance in the target application.