TYS4012220M-10 Equivalent & Substitute Parts

Part Overview

The TYS4012220M-10 is a 22 µH shielded surface mount inductor manufactured by Laird-Signal Integrity Products. This component is rated for 490 mA continuous current with a maximum DC resistance of 587 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently in active production status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances. The substitute parts listed below provide functional equivalence for applications requiring 22 µH inductance in a 4.00mm × 4.00mm surface mount package.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Inductance	22	µH	Core electrical specification; must match within tolerance
Inductance Tolerance	±20%	%	Acceptable variation range for circuit operation
Current Rating	490	mA	Continuous current capability; substitute must meet or exceed
DC Resistance (DCR)	587	mOhm Max	Power loss and thermal performance; lower values preferred
Shielding	Shielded	—	Electromagnetic interference containment; must be maintained
Package Size	4.00 × 4.00	mm	PCB footprint compatibility; must match
Operating Temperature	-40 to 125	°C	Thermal operating envelope; substitute must cover or exceed
Mounting Type	Surface Mount	—	Assembly process compatibility
RoHS Status	ROHS3 Compliant	—	Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitution eligibility for the TYS4012220M-10 is determined by the following criteria:

Electrical Parameters (Primary):

Inductance value must be 22 µH with ±20% tolerance
Current rating must be sufficient for 490 mA operation
DC resistance must not exceed 587 mOhm to maintain thermal performance
Shielding configuration must be maintained

Mechanical Parameters (Secondary):

Package footprint must be 4.00mm × 4.00mm (0.157" × 0.157")
Mounting type must be surface mount (SMD)
Height must accommodate PCB assembly constraints

Environmental & Compliance Parameters:

Operating temperature range must cover -40°C to 125°C
RoHS3 compliance is required
MSL rating of 1 (unlimited) is acceptable

The two substitute parts identified below meet these criteria with the following considerations:

NRS4010T220MDGG and NRS4010T220MDGGV (Taiyo Yuden):

Both provide 22 µH inductance with ±20% tolerance
Current rating of 500 mA exceeds the 490 mA requirement
DC resistance of 684 mOhm is higher than the main part specification
Both are shielded with identical 4.00mm × 4.00mm footprint
NRS4010T220MDGGV includes AEC-Q200 automotive qualification and extended temperature range (-40°C to 125°C)
NRS4010T220MDGG operates at -25°C to 120°C (narrower range)

Parameter Comparison

Parameter	TYS4012220M-10 (Main)	NRS4010T220MDGG	NRS4010T220MDGGV
Manufacturer	Laird-Signal Integrity Products	Taiyo Yuden	Taiyo Yuden
Inductance	22 µH	22 µH	22 µH
Tolerance	±20%	±20%	±20%
Current Rating	490 mA	500 mA	500 mA
Current - Saturation (Isat)	460 mA	450 mA	450 mA
DC Resistance (DCR)	587 mOhm Max	684 mOhm Max	684 mOhm Max
Shielding	Shielded	Shielded	Shielded
Frequency - Self Resonant	20 MHz	19 MHz	19 MHz
Operating Temperature	-40°C to 125°C	-25°C to 120°C	-40°C to 125°C
Package Size	4.00 × 4.00 mm	4.00 × 4.00 mm	4.00 × 4.00 mm
Height - Seated (Max)	1.20 mm	1.00 mm	1.00 mm
Product Status	Active	Not For New Designs	Not For New Designs
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Ratings	—	—	AEC-Q200

Engineering Selection Recommendations

Primary Selection: TYS4012220M-10

The TYS4012220M-10 remains the preferred component for new designs. It is in active production status, offers the lowest DC resistance specification (587 mOhm), and provides full temperature range coverage (-40°C to 125°C). This part is suitable for applications requiring optimal thermal performance and long-term supply continuity.

Secondary Selection: NRS4010T220MDGGV

The NRS4010T220MDGGV is the preferred substitute when the TYS4012220M-10 is unavailable. This part provides:

Equivalent inductance and tolerance specifications
Sufficient current rating (500 mA vs. 490 mA requirement)
Full temperature range coverage matching the main part (-40°C to 125°C)
AEC-Q200 automotive qualification, suitable for automotive and high-reliability applications
Identical footprint and MSL rating

The higher DC resistance (684 mOhm vs. 587 mOhm) results in approximately 16.5% additional power dissipation. This difference must be evaluated in thermal budget calculations for power-sensitive applications.

Tertiary Selection: NRS4010T220MDGG

The NRS4010T220MDGG is acceptable only when operating temperature does not exceed 120°C. This part is marked "Not For New Designs" and should be used only for legacy system maintenance or when supply constraints require it. The narrower temperature range (-25°C to 120°C) excludes it from applications requiring full -40°C operation.

Compliance Considerations:

All three parts are RoHS3 compliant with MSL 1 rating. The NRS4010T220MDGGV includes AEC-Q200 qualification, making it suitable for automotive applications where this certification is required.

Frequently Asked Questions (FAQ)

Q: Can NRS4010T220MDGG and NRS4010T220MDGGV be used interchangeably?

A: Both parts share identical electrical specifications (22 µH, ±20%, 500 mA, 684 mOhm DCR) and physical dimensions (4.00 × 4.00 mm). The primary difference is operating temperature range and automotive qualification. NRS4010T220MDGGV covers -40°C to 125°C with AEC-Q200 certification, while NRS4010T220MDGG operates only to -25°C to 120°C. Selection depends on temperature requirements and automotive compliance needs.

Q: What is the impact of higher DC resistance in the substitute parts?

A: The NRS4010T220MDGG and NRS4010T220MDGGV have 684 mOhm maximum DCR compared to 587 mOhm for the TYS4012220M-10. At 490 mA continuous current, this represents approximately 47.6 mW additional power dissipation in the substitute parts. Thermal analysis is required for applications with tight thermal budgets or high ambient temperatures.

Q: Are the substitute parts suitable for new product designs?

A: The TYS4012220M-10 is the recommended choice for new designs due to its active production status. Both Taiyo Yuden parts are marked "Not For New Designs," indicating they are legacy components. However, NRS4010T220MDGGV may be used when specific requirements (such as AEC-Q200 automotive qualification) necessitate it, provided supply availability is confirmed.

Q: Do all parts have the same footprint compatibility?

A: Yes. All three parts share identical package dimensions of 4.00 × 4.00 mm (0.157" × 0.157"). However, the TYS4012220M-10 has a maximum seated height of 1.20 mm, while both Taiyo Yuden parts are 1.00 mm. This 0.20 mm difference must be verified against PCB assembly clearance requirements, particularly in applications with height constraints.

Q: What is the saturation current difference between the main part and substitutes?

A: The TYS4012220M-10 has saturation current (Isat) of 460 mA, while both substitute parts specify 450 mA. Both values are below the 490 mA continuous current rating, indicating that saturation effects will occur under rated load conditions. This is a characteristic of the 22 µH inductance class and does not differentiate the parts.

Q: Are all parts RoHS3 compliant?

A: Yes. The TYS4012220M-10, NRS4010T220MDGG, and NRS4010T220MDGGV are all RoHS3 compliant with MSL 1 (unlimited) moisture sensitivity rating. All parts are suitable for applications requiring RoHS compliance.

Q: What is the self-resonant frequency difference?

A: The TYS4012220M-10 has a self-resonant frequency of 20 MHz, while both Taiyo Yuden substitutes specify 19 MHz. This 1 MHz difference is within typical manufacturing variation for this component class and does not affect substitution eligibility for standard applications.

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