TYS3010470M-10 Equivalent & Substitute Parts Reference

Part Overview

The TYS3010470M-10 is a 47 µH shielded surface mount inductor manufactured by Laird-Signal Integrity Products. This component is rated for 260 mA continuous current with a maximum DC resistance of 1.95 Ohm and operates across the temperature range of -40°C to 125°C. The part is currently in active production status with 683 units available in inventory.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while accommodating different manufacturer designs, packaging formats, or inventory availability. The substitute parts listed below maintain the core inductance value of 47 µH and shielded construction while offering alternative current ratings and DC resistance characteristics suitable for circuit-level compatibility.

Key Parameters

Parameter	Value	Unit	Significance for Substitution
Inductance	47	µH	Primary electrical specification; must match exactly
Inductance Tolerance	±20%	%	Acceptable variation range for all substitute parts
Current Rating	260	mA	Minimum continuous current capability required
DC Resistance (DCR)	1.95	Ohm Max	Power dissipation and thermal performance factor
Shielding	Shielded	—	Electromagnetic interference containment requirement
Mounting Type	Surface Mount	—	PCB assembly compatibility
Package Size	3.00mm x 3.00mm	mm	Physical footprint constraint
Operating Temperature Range	-40°C to 125°C	°C	Environmental operating limits
RoHS Status	ROHS3 Compliant	—	Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitute parts for the TYS3010470M-10 are qualified based on the following criteria:

Electrical Equivalence:

Inductance value of 47 µH maintained across all substitutes
Inductance tolerance of ±20% consistent with primary part
Shielded construction preserved for EMI performance
Operating frequency test point at 100 kHz matches specification

Current Capability: Substitute parts must support the minimum 260 mA continuous current requirement of the primary part. Parts with higher current ratings (280 mA, 300 mA) provide additional design margin and are acceptable for direct substitution.

DC Resistance: Substitute parts with lower DC resistance values (1.74 Ohm, 1.608 Ohm) reduce power dissipation compared to the 1.95 Ohm maximum of the primary part, improving thermal performance.

Physical Compatibility: All substitute parts maintain the 3.00mm x 3.00mm footprint required for PCB layout compatibility. Height variations (1.00mm to 1.50mm) remain within typical surface mount assembly tolerances.

Regulatory Compliance: All substitute parts carry ROHS3 compliance certification, meeting the same environmental standards as the primary part.

Parameter Comparison

Parameter	TYS3010470M-10 (Primary)	NR3012T470M	NR3015T470M
Manufacturer	Laird-Signal Integrity Products	Taiyo Yuden	Taiyo Yuden
Inductance	47 µH	47 µH	47 µH
Inductance Tolerance	±20%	±20%	±20%
Current Rating	260 mA	280 mA	300 mA
Current - Saturation (Isat)	220 mA	250 mA	320 mA
DC Resistance (DCR)	1.95 Ohm Max	1.74 Ohm Max	1.608 Ohm Max
Shielding	Shielded	Shielded	Shielded
Frequency - Self Resonant	18 MHz	17 MHz	17 MHz
Operating Temperature Range	-40°C to 125°C	-25°C to 120°C	-25°C to 120°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Package Size	3.00mm x 3.00mm	3.00mm x 3.00mm	3.00mm x 3.00mm
Height - Seated (Max)	1.00 mm	1.20 mm	1.50 mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tape & Reel (TR)	Cut Tape (CT)	Tape & Reel (TR)
Product Status	Active	Not For New Designs	Not For New Designs

Engineering Selection Recommendations

Primary Part Selection (TYS3010470M-10): The TYS3010470M-10 is the recommended choice for new circuit designs. This part maintains active production status, ensuring long-term availability and supply chain stability. The extended operating temperature range (-40°C to 125°C) accommodates demanding environmental applications. Tape & Reel packaging supports high-volume automated assembly operations.

Substitute Part NR3015T470M: The NR3015T470M is the preferred substitute when TYS3010470M-10 availability is constrained. This part offers superior electrical performance with 300 mA current rating and 1.608 Ohm maximum DC resistance, providing enhanced design margin. Tape & Reel packaging maintains compatibility with production workflows. However, this part carries "Not For New Designs" status, indicating limited future availability. The operating temperature range (-25°C to 120°C) is narrower than the primary part and must be verified against application requirements.

Substitute Part NR3012T470M: The NR3012T470M is suitable for applications where Cut Tape packaging is acceptable and inventory availability is prioritized. This part provides 280 mA current rating and 1.74 Ohm maximum DC resistance. The "Not For New Designs" status and Cut Tape format indicate this part is intended for legacy system support or short-term production runs. The operating temperature range (-25°C to 120°C) requires verification for cold-temperature applications below -25°C.

Compliance Considerations: All three parts maintain ROHS3 compliance and are suitable for regulated markets. The primary part's REACH Unaffected status should be confirmed for applications requiring REACH documentation.

Frequently Asked Questions (FAQ)

Q: Can NR3015T470M directly replace TYS3010470M-10 in existing designs?

A: The NR3015T470M meets all core electrical requirements: 47 µH inductance, ±20% tolerance, shielded construction, and 3.00mm x 3.00mm footprint. The 300 mA current rating exceeds the 260 mA requirement. However, the operating temperature range (-25°C to 120°C) is narrower than the primary part (-40°C to 125°C). Verify that your application does not require operation below -25°C or above 120°C before substitution.

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

A: Tape & Reel (TR) packaging supplies components on continuous reels suitable for automated pick-and-place assembly equipment. Cut Tape (CT) packaging provides components on tape segments, typically used for lower-volume manual assembly or when reel quantities are not required. Both formats contain the same component; packaging selection depends on assembly process requirements.

Q: Why do the substitute parts have "Not For New Designs" status?

A: This designation indicates that the manufacturer is not actively promoting these parts for new circuit development and may discontinue production. These parts are available for existing product support and legacy system maintenance. For new designs, the TYS3010470M-10 (Active status) is the recommended choice to ensure long-term supply availability.

Q: How does DC resistance affect circuit performance?

A: DC resistance (DCR) determines power dissipation in the inductor. Lower DCR values reduce heat generation and improve efficiency. The NR3015T470M (1.608 Ohm) dissipates less power than the primary part (1.95 Ohm) at the same current level. This can be beneficial in power-sensitive applications but does not affect the inductance value or frequency response.

Q: Are all substitute parts RoHS compliant?

A: Yes. All three parts listed carry ROHS3 compliance certification, meeting the same environmental standards. This ensures compatibility with regulated markets and assembly processes requiring lead-free components.

Q: What is the significance of the 3.00mm x 3.00mm footprint?

A: This dimension defines the physical footprint on the printed circuit board. All substitute parts maintain this footprint, ensuring PCB layout compatibility without redesign. Height variations (1.00mm to 1.50mm) are within typical surface mount assembly tolerances and do not affect placement or soldering processes.

Q: Can I use NR3012T470M if NR3015T470M is unavailable?

A: Yes. The NR3012T470M meets the same electrical specifications (47 µH, ±20% tolerance, shielded) and current requirements (280 mA exceeds 260 mA minimum). The primary trade-off is Cut Tape packaging, which may require manual handling or alternative assembly processes. Verify that your production workflow accommodates Cut Tape format before selection.

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