SPM10054T-330M-HZ Equivalent & Substitute Parts

Part Overview

The SPM10054T-330M-HZ is a 33 µH shielded drum core wirewound inductor manufactured by TDK Corporation, rated for 5.3 A continuous current with a maximum DC resistance of 82.13 mOhm. This component is designed for surface mount applications in automotive and industrial circuits requiring stable inductance performance across the -40°C to 125°C operating range.

The SPM10054T-330M-HZ carries a "Not For New Designs" status, indicating that TDK has transitioned this model out of active production. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support existing applications requiring this inductance value and current rating.

Substiute Parts

SPM10054T-330M-HZ

TDK CorporationIn Stock: 1783SPM10054T-330M-HZ Datasheet

Current PartRFQ

SPM10054T-330M-HZR

TDK CorporationIn Stock: 1251SPM10054T-330M-HZR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SPM10054T-330M-HZ is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 33 µH (exact match required)
• Inductance tolerance: ±20% (must be equivalent or tighter)
• Shielding type: Shielded (electromagnetic containment requirement)
• Mounting type: Surface Mount (PCB assembly compatibility)
• Physical dimensions: 10.70mm L x 10.00mm W x 5.40mm H (footprint compatibility)
• Operating temperature range: -40°C ~ 125°C (thermal envelope)
• AEC-Q200 rating (automotive qualification requirement)
• RoHS3 compliance (regulatory requirement)

Secondary Compatibility Parameters:

• DC resistance (DCR) must remain within acceptable circuit design margins
• Current rating and saturation current must support the application's power requirements
• Core material and construction type (wirewound, shielded) must be maintained

The SPM10054T-330M-HZR qualifies as a direct substitute based on matching inductance, tolerance, shielding, dimensions, temperature range, AEC-Q200 rating, and RoHS3 compliance. Packaging format differs (Cut Tape vs. Tape & Reel), which affects procurement and assembly logistics but not electrical or mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

The SPM10054T-330M-HZR is the manufacturer-recommended substitute for the SPM10054T-330M-HZ. Selection between these parts should be based on the following engineering and supply chain factors:

Use SPM10054T-330M-HZ when:

• Existing inventory is available and cost-effective for current production runs
• Cut Tape packaging format is required for manual assembly or specific handling processes
• The part's "Not For New Designs" status does not conflict with project lifecycle requirements

Use SPM10054T-330M-HZR when:

• Designing new applications or refreshing existing designs
• Tape & Reel packaging is compatible with automated assembly equipment
• Long-term supply chain continuity is required (Active product status)
• Current application requirements do not exceed 3.9 A continuous rating

Both parts maintain AEC-Q200 automotive qualification and ROHS3 compliance. The primary design consideration is the current rating differential: the substitute part is rated for 3.9 A versus the original 5.3 A. Circuit designs operating below 3.9 A continuous current will experience no functional impact. Applications requiring sustained currents above 3.9 A must evaluate the substitute's saturation current specification (3.9 A) against circuit operating conditions.

Frequently Asked Questions (FAQ)

Q: Can SPM10054T-330M-HZR replace SPM10054T-330M-HZ in existing designs?

A: Yes, provided the application's continuous current requirement does not exceed 3.9 A. Both parts share identical inductance (33 µH), tolerance (±20%), DC resistance (82.13–82.2 mOhm), shielding, dimensions, temperature range, and AEC-Q200 rating. The substitute is suitable for circuits operating within its 3.9 A current rating.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging supplies individual components on carrier tape, typically used for manual assembly or small-volume production. Tape & Reel (TR) packaging supplies components on continuous reel format, optimized for high-speed automated assembly equipment. Both formats contain identical electrical and mechanical components; packaging selection depends on assembly process requirements.

Q: Are both parts compliant with automotive standards?

A: Yes. Both SPM10054T-330M-HZ and SPM10054T-330M-HZR carry AEC-Q200 qualification, indicating compliance with automotive-grade reliability and performance standards. Both are ROHS3 compliant and REACH unaffected.

Q: Why does the substitute part have a lower current rating?

A: The SPM10054T-330M-HZR is rated for 3.9 A continuous current compared to the original 5.3 A. This reflects design or manufacturing differences in the substitute model. Circuits operating below 3.9 A will function identically. Applications requiring higher current capacity must evaluate alternative inductors with higher current ratings.

Q: What is the saturation current specification, and why does it differ between parts?

A: Saturation current (Isat) indicates the current level at which the inductor's inductance begins to degrade due to core saturation. The original part specifies 2.6 A Isat, while the substitute specifies 3.9 A Isat. The substitute's higher saturation current provides better performance margin in circuits approaching saturation limits.

Q: Can I use these parts interchangeably in high-frequency applications?

A: Both parts are tested at 100 kHz inductance frequency. For applications operating significantly above or below this frequency, circuit simulation or testing is necessary to confirm performance. The inductance value and DC resistance remain the primary design parameters across the specified operating temperature range.