TYS4020150M-10 Equivalent & Substitute Parts

Part Overview

The TYS4020150M-10 is a 15 µH shielded surface mount inductor manufactured by Laird-Signal Integrity Products. This component is rated for 770 mA continuous current with a maximum DC resistance of 230 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently in active production status with ROHS3 compliance and unlimited moisture sensitivity rating.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting the same environmental and compliance requirements. Alternative sources ensure supply chain continuity and may offer different inventory availability or packaging options.

Substiute Parts

TYS4020150M-10

Laird-Signal Integrity ProductsIn Stock: 1196TYS4020150M-10 Datasheet

Current PartRFQ

74404042150

Würth ElektronikIn Stock: 313174404042150 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TYS4020150M-10 is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value of 15 µH within ±20% tolerance
• Current rating minimum of 770 mA
• Saturation current (Isat) minimum of 1.35 A
• DC resistance not exceeding 230 mOhm
• Self resonant frequency within acceptable operating bandwidth (24 MHz or higher)
• Inductance test frequency of 100 kHz

Environmental & Compliance Criteria:

• Operating temperature range of -40°C to 125°C
• ROHS3 compliance
• Moisture sensitivity level of 1 (Unlimited)
• Surface mount packaging configuration
• Nonstandard package case type

Mechanical Compatibility:

• Physical footprint of 4.00 mm x 4.00 mm
• Height seated maximum of 2.00 mm or less
• Tape & Reel packaging format

The substitute part 74404042150 meets all electrical equivalence criteria with improved current rating (850 mA) and lower DC resistance (210 mOhm), while maintaining full environmental and compliance compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (TYS4020150M-10): The TYS4020150M-10 is recommended as the primary component choice when fully shielded construction is a circuit design requirement. This part maintains active production status with established supply availability of 1108 pieces in stock. Full shielding provides maximum electromagnetic interference (EMI) containment for sensitive applications.

Substitute Part Selection (74404042150): The 74404042150 from Würth Elektronik is a valid substitute when semi-shielded construction is acceptable for the application. This part offers performance advantages including higher current rating (850 mA versus 770 mA), lower DC resistance (210 mOhm versus 230 mOhm maximum), and a lower profile (1.80 mm versus 2.00 mm seated height). The substitute maintains ROHS3 compliance and AEC-Q200 automotive qualification rating. Inventory availability is higher at 3033 pieces in stock.

Compliance Considerations: Both parts maintain ROHS3 compliance, unlimited moisture sensitivity rating (MSL 1), and identical operating temperature ranges. Both are packaged in Tape & Reel format with identical footprint dimensions (4.00 mm x 4.00 mm). Selection between these parts should be based on shielding requirements and available board space for height constraints.

Frequently Asked Questions (FAQ)

Q: Can the 74404042150 replace the TYS4020150M-10 in all applications?

A: The 74404042150 is electrically compatible and meets all specified current and resistance requirements. However, the primary difference is shielding type: the main part is fully shielded while the substitute is semi-shielded. Applications requiring full EMI containment should retain the TYS4020150M-10. Applications where semi-shielding is acceptable can use the substitute.

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

A: Shielded inductors (TYS4020150M-10) provide complete electromagnetic field containment through full shielding. Semi-shielded inductors (74404042150) use partial shielding, typically on the drum core design, which reduces EMI but may not provide complete field isolation. Selection depends on circuit sensitivity to magnetic field coupling.

Q: Are the physical dimensions identical between these parts?

A: Both parts share the same footprint of 4.00 mm x 4.00 mm. The substitute part has a lower seated height of 1.80 mm compared to 2.00 mm for the main part. This difference may be relevant for applications with strict height constraints.

Q: Do both parts meet automotive qualification standards?

A: The TYS4020150M-10 does not list automotive qualification in the provided specifications. The 74404042150 carries AEC-Q200 automotive qualification rating. For automotive applications, the substitute part is the appropriate choice.

Q: What is the significance of the ±20% inductance tolerance?

A: Both parts share ±20% inductance tolerance, meaning the actual inductance value can vary from 12 µH to 18 µH. This tolerance is typical for ferrite-core inductors and must be considered in circuit design calculations. Both parts are equivalent in this specification.

Q: How do the DC resistance values affect circuit performance?

A: The TYS4020150M-10 has a maximum DC resistance of 230 mOhm, while the 74404042150 is specified at 210 mOhm. Lower DC resistance reduces resistive losses and heat generation at rated current. The substitute part offers a 9% improvement in this parameter.

Q: Are there any supply chain advantages to using the substitute part?

A: The 74404042150 has higher inventory availability (3033 pieces versus 1108 pieces for the main part). For applications where semi-shielding is acceptable, the substitute may offer better supply continuity and shorter lead times.