ASPI-0320S-150M-T3 Equivalent & Substitute Parts

Part Overview

The ASPI-0320S-150M-T3 is a 15 µH shielded drum core wirewound inductor manufactured by Abracon LLC, rated for 660 mA continuous current with a maximum DC resistance of 344 mOhm. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across an industrial temperature range of -25°C to 100°C and is fully RoHS3 compliant.

Substiute Parts

ASPI-0320S-150M-T3

Abracon LLCIn Stock: 755ASPI-0320S-150M-T3 Datasheet

Current PartRFQ

LQH3NPZ150MMEL

Murata ElectronicsIn Stock: 1345LQH3NPZ150MMEL Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASPI-0320S-150M-T3 is determined by the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 15 µH ±20% tolerance
• Core material: Ferrite shielded construction
• DC resistance: Maximum 344 mOhm (allows higher current capacity without exceeding resistance threshold)
• Current rating: Minimum 660 mA continuous rating

Mechanical Compatibility Criteria:

• Mounting type: Surface mount only
• Package footprint: Nonstandard 3.20mm x 3.20mm or equivalent compact form factor
• Height constraint: Maximum 2.00mm seated height for PCB integration

Compliance Requirements:

• RoHS3 compliance mandatory
• Moisture sensitivity level 1 (unlimited shelf life)

The substitute part LQH3NPZ150MMEL meets all electrical requirements with enhanced specifications and maintains mechanical compatibility within acceptable PCB assembly constraints.

Parameter Comparison

Engineering Selection Recommendations

The LQH3NPZ150MMEL from Murata Electronics is the qualified substitute for the obsolete ASPI-0320S-150M-T3. Selection is based on the following engineering factors:

Electrical Performance: Both parts maintain identical 15 µH inductance with ±20% tolerance and ferrite shielded core construction. DC resistance values are equivalent (344 mOhm vs. 348 mOhm), with the substitute providing higher continuous current capacity (1.02 A vs. 660 mA), ensuring margin above the original design requirement.

Compliance & Certification: Both components are RoHS3 compliant with MSL 1 rating, meeting environmental and reliability standards. The substitute carries AEC-Q200 automotive qualification, providing additional reliability assurance for critical applications.

Physical Integration: The substitute features a compact 1212 (3030 Metric) package with 1.50mm maximum seated height, compared to the original 2.00mm. This 0.50mm reduction in height provides improved PCB assembly density. The footprint reduction from 3.20mm to 3.00mm is negligible for most applications and maintains compatibility with standard pick-and-place equipment.

Temperature Performance: The substitute operates across -40°C to 105°C, exceeding the original -25°C to 100°C range and providing enhanced thermal margin for industrial and automotive environments.

Frequently Asked Questions (FAQ)

Q: Can the LQH3NPZ150MMEL directly replace the ASPI-0320S-150M-T3 without PCB redesign?

A: Yes, with minor considerations. The substitute is mechanically compatible with equivalent electrical performance. The footprint is slightly smaller (3.00mm vs. 3.20mm) and height is lower (1.50mm vs. 2.00mm), both favorable for PCB integration. Verify pad spacing on your PCB layout matches the 1212 (3030 Metric) package specification.

Q: What is the significance of the current rating difference (660 mA vs. 1.02 A)?

A: The substitute's higher current rating (1.02 A) provides design margin above the original 660 mA requirement. This does not affect substitution suitability; it indicates the substitute can handle the original application with additional thermal and electrical headroom.

Q: Are there any compliance or certification differences between these parts?

A: Both parts are RoHS3 compliant with MSL 1 rating. The substitute carries AEC-Q200 automotive qualification, which is an additional certification not specified for the original part. This enhances reliability for mission-critical applications.

Q: How do the DC resistance values compare?

A: The original part specifies 344 mOhm maximum; the substitute specifies 348 mOhm maximum. This 4 mOhm difference is negligible for most circuit applications and falls within typical manufacturing tolerance bands for ferrite inductors.

Q: What is the impact of the package size reduction?

A: The substitute uses a standardized 1212 (3030 Metric) package versus the original nonstandard 3.20mm x 3.20mm package. The 0.20mm footprint reduction and 0.50mm height reduction improve PCB density and assembly efficiency without affecting electrical performance or mechanical reliability.

Q: Is the substitute available for procurement?

A: The LQH3NPZ150MMEL is listed as discontinued at DiGi Electronics. Availability should be verified through authorized Murata distributors or alternative component suppliers before design commitment.