7447714101 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7447714101 is a 100 µH shielded drum core wirewound inductor rated for 1.5 A continuous current with a maximum DC resistance of 198 mOhm. This surface mount component operates across -40°C to 125°C and is part of the WE-PD Performance series. The part is currently active in production and ROHS3 compliant. Equivalent and substitute parts may be required due to inventory constraints, design optimization for specific current or resistance requirements, or application-specific performance parameters.

Key Parameters

Parameter	Value
Inductance	100 µH
Inductance Tolerance	±20%
Current Rating	1.5 A
Current - Saturation (Isat)	1.8 A
DC Resistance (DCR) Maximum	198 mOhm
Core Material	Ferrite
Shielding	Shielded
Mounting Type	Surface Mount
Package Type	Nonstandard
Operating Temperature Range	-40°C to 125°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the 7447714101 is determined by the following critical parameters:

Inductance Value: Must be 100 µH
Core Type: Ferrite drum core, wirewound construction
Shielding: Shielded configuration required
Mounting: Surface mount, nonstandard package
Current Rating: Minimum 1.5 A continuous current capability
DC Resistance: Maximum 198 mOhm preferred; higher values acceptable only if application thermal budget permits
Operating Temperature: Must support -40°C to 125°C minimum
RoHS Compliance: ROHS3 compliant

The three qualified substitute parts meet these core requirements with variations in current saturation, DC resistance, tolerance, and frequency characteristics. Selection depends on specific application constraints regarding current handling, thermal dissipation, and frequency response.

Parameter Comparison

Parameter	7447714101 (Würth)	NS10145T101MNA (Taiyo Yuden)	PA4304.104NLT (Pulse Electronics)	SRR1050HA-101Y (Bourns)
Manufacturer	Würth Elektronik	Taiyo Yuden	Pulse Electronics	Bourns Inc.
Inductance	100 µH	100 µH	100 µH	100 µH
Inductance Tolerance	±20%	±20%	±20%	±30%
Current Rating (Amps)	1.5 A	1.25 A	1.3 A	1.35 A
Current - Saturation (Isat)	1.8 A	1.29 A	Not specified	1.35 A
DC Resistance (DCR) Maximum	198 mOhm	240 mOhm	160 mOhm	255 mOhm
Core Material	Ferrite	Ferrite	Ferrite	Ferrite
Shielding	Shielded	Shielded	Shielded	Shielded
Frequency - Self Resonant	5.9 MHz	6 MHz	Not specified	4.2 MHz
Operating Temperature Range	-40°C to 125°C	-40°C to 125°C	-40°C to 125°C	-55°C to 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	Nonstandard	Nonstandard	Nonstandard	Nonstandard
Size / Dimension (L x W)	10.00 mm x 10.00 mm	10.10 mm x 10.10 mm	12.50 mm x 12.50 mm	10.20 mm x 10.00 mm
Height - Seated (Max)	5.00 mm	4.85 mm	6.00 mm	5.10 mm
Product Status	Active	Not For New Designs	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

PA4304.104NLT (Pulse Electronics) is the preferred substitute when lower DC resistance is required. This part offers 160 mOhm maximum resistance, reducing power dissipation compared to the primary part. The part is active in production and ROHS3 compliant. Physical dimensions are larger (12.50 mm x 12.50 mm), requiring PCB layout verification.

SRR1050HA-101Y (Bourns Inc.) provides the widest operating temperature range (-55°C to 150°C) and is AEC-Q200 rated, making it suitable for automotive and extended temperature applications. DC resistance is 255 mOhm maximum. Inductance tolerance is ±30%, which may require circuit validation. The part is active in production and ROHS3 compliant.

NS10145T101MNA (Taiyo Yuden) is not recommended for new designs per manufacturer status. This part exhibits lower current rating (1.25 A) and higher DC resistance (240 mOhm) compared to the primary part, making it suitable only for legacy system maintenance or inventory replacement scenarios.

Frequently Asked Questions (FAQ)

Q: Can NS10145T101MNA be used as a direct replacement for 7447714101?

A: NS10145T101MNA is not recommended for new designs. While it meets the 100 µH inductance and ferrite shielded core requirements, the lower current rating (1.25 A versus 1.5 A) and higher DC resistance (240 mOhm versus 198 mOhm) make it unsuitable for applications requiring the full 1.5 A rating. Use only for legacy system support.

Q: What are the physical compatibility constraints when substituting PA4304.104NLT?

A: PA4304.104NLT has larger footprint dimensions (12.50 mm x 12.50 mm versus 10.00 mm x 10.00 mm) and greater height (6.00 mm versus 5.00 mm). PCB layout and component clearance must be verified before substitution to ensure no mechanical interference with adjacent components or enclosure constraints.

Q: Is SRR1050HA-101Y suitable for automotive applications?

A: Yes. SRR1050HA-101Y carries AEC-Q200 qualification and supports the extended temperature range of -55°C to 150°C, making it appropriate for automotive and harsh environment applications. The ±30% inductance tolerance requires circuit validation to confirm acceptable performance margins.

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

A: Higher DC resistance increases power dissipation (P = I²R). SRR1050HA-101Y (255 mOhm) and NS10145T101MNA (240 mOhm) dissipate more heat than the primary part (198 mOhm) at equivalent current levels. Thermal analysis is required if the application operates at sustained high current near the part's rating.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All listed substitute parts—PA4304.104NLT, SRR1050HA-101Y, and NS10145T101MNA—are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity, matching the primary part's environmental compliance profile.

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