1234AS-H-150M=P3 Equivalent & Substitute Parts

Part Overview

The 1234AS-H-150M=P3 is a 15 µH shielded drum core wirewound inductor manufactured by Murata Electronics, rated for 1 A continuous current with a maximum DC resistance of 276 mOhm. This surface mount component operates across the temperature range of -40°C to 85°C and is designed for applications requiring fixed inductance in compact form factors.

This part is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing production support and design continuity. Substitute components must maintain the core electrical specifications while accommodating minor variations in physical dimensions and performance characteristics.

Substiute Parts

1234AS-H-150M=P3

Murata ElectronicsIn Stock: 24871234AS-H-150M=P3 Datasheet

Current PartRFQ

NRS5020T150MMGJ

Taiyo YudenIn Stock: 2173NRS5020T150MMGJ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 1234AS-H-150M=P3 is determined by the following critical parameters:

• Inductance Value: Must be 15 µH with ±20% tolerance
• Core Type & Shielding: Ferrite material with shielded construction required
• Current Handling: Minimum 1 A continuous rating; saturation current minimum 800 mA
• DC Resistance: Maximum 276 mOhm to ensure thermal and performance compatibility
• Mounting Configuration: Surface mount only
• Temperature Range: Must support minimum -40°C to 85°C operation
• Test Frequency: 100 kHz inductance measurement standard

The substitute part NRS5020T150MMGJ from Taiyo Yuden meets these core requirements while offering enhanced current capacity (1.2 A) and lower DC resistance (198 mOhm Max), making it a direct functional replacement.

Parameter Comparison

Engineering Selection Recommendations

The NRS5020T150MMGJ from Taiyo Yuden is the manufacturer-recommended substitute for the obsolete 1234AS-H-150M=P3. This substitution is supported by:

• Electrical Equivalence: Identical inductance value and tolerance with superior current handling and lower DC resistance
• Regulatory Compliance: ROHS3 compliant and REACH unaffected, meeting modern environmental standards
• Thermal Performance: Extended operating temperature range (-25°C to 125°C) provides broader application flexibility
• Physical Compatibility: Minimal dimensional variance (0.193" vs 0.185" length; 0.079" vs 0.055" height) accommodates standard PCB layouts with minor footprint adjustments
• Product Status: Classified as "Not For New Designs" but available for legacy system support and production continuity

Selection of this substitute is appropriate for applications where the original part is no longer available and design modifications to accommodate slightly larger package dimensions are feasible.

Frequently Asked Questions (FAQ)

Q: Can the NRS5020T150MMGJ be used as a direct drop-in replacement for the 1234AS-H-150M=P3?

A: Electrical substitution is direct. Physical substitution requires PCB layout verification due to increased height (2.00mm vs 1.40mm) and slightly larger footprint dimensions. Clearance validation is necessary before implementation.

Q: What are the key differences between these two inductors?

A: The substitute offers improved performance with 20% higher current rating (1.2 A vs 1 A), 28% lower DC resistance (198 mOhm vs 276 mOhm), and extended temperature range (-25°C to 125°C vs -40°C to 85°C). Physical dimensions are slightly larger, and the substitute includes modern compliance certifications (ROHS3, REACH).

Q: Are there any thermal or performance trade-offs with this substitution?

A: The substitute exhibits superior thermal characteristics due to lower DC resistance, resulting in reduced power dissipation. The extended temperature range provides additional operational margin. No performance degradation is introduced by this substitution.

Q: What packaging format is the substitute available in?

A: The NRS5020T150MMGJ is supplied in Tape & Reel (TR) format, standard for high-volume surface mount assembly operations.

Q: Is the substitute suitable for new design applications?

A: The substitute is classified as "Not For New Designs" by the manufacturer. For new applications, consultation with the manufacturer regarding current-generation alternatives is recommended.