Würth Elektronik 7447715906 Equivalent & Substitute Parts

Part Overview

The Würth Elektronik 7447715906 is a 600 nH shielded drum core wirewound inductor rated for 9.5 A continuous current with a maximum DC resistance of 5.5 mOhm. This component is designed for surface mount applications requiring low inductance values with high current handling capability and minimal DC losses. The part is currently active in production and widely available in inventory. Substitute parts may be required due to supply constraints, lead time considerations, or specific application requirements that benefit from alternative electrical or thermal characteristics.

Key Parameters

Parameter	Value
Inductance	600 nH
Inductance Tolerance	±30%
Current Rating	9.5 A
Saturation Current (Isat)	19 A
DC Resistance (DCR)	5.5 mOhm Max
Shielding	Shielded
Self Resonant Frequency	160 MHz
Operating Temperature Range	-40°C to 125°C
Mounting Type	Surface Mount
Package Type	Nonstandard
Size	12.00 mm × 12.00 mm × 4.50 mm (Max Height)
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)
AEC-Q200 Rating	Yes

Substitute Part Grouping Explanation

The Pulse Electronics P1168.501NLT qualifies as a substitute for the Würth Elektronik 7447715906 based on the following substitution criteria:

Allowed Electrical Parameter Variations:

Inductance: 500 nH (within ±30% tolerance band of 600 nH specification)
Current Rating: 14 A (exceeds minimum 9.5 A requirement)
Saturation Current: 18 A (comparable to 19 A)
DC Resistance: 2.3 mOhm Max (lower than 5.5 mOhm, providing improved performance)

Allowed Mechanical Parameter Compatibility:

Mounting Type: Surface Mount (identical)
Package Type: Nonstandard (identical form factor class)
Physical Dimensions: 12.24 mm × 12.24 mm × 4.50 mm (compatible with 12.00 mm × 12.00 mm footprint)
Height: 4.50 mm (identical)

Compliance & Environmental Compatibility:

RoHS3 Compliant (matches main part)
MSL 1 (Unlimited) (matches main part)
Operating Temperature: -40°C to 130°C (exceeds -40°C to 125°C range)

Parameter Comparison

Parameter	Würth Elektronik 7447715906	Pulse Electronics P1168.501NLT
Inductance	600 nH	500 nH
Inductance Tolerance	±30%	±30%
Current Rating	9.5 A	14 A
Saturation Current (Isat)	19 A	18 A
DC Resistance (DCR)	5.5 mOhm Max	2.3 mOhm Max
Shielding	Shielded	Shielded
Self Resonant Frequency	160 MHz	40 MHz
Operating Temperature Range	-40°C to 125°C	-40°C to 130°C
Mounting Type	Surface Mount	Surface Mount
Package Type	Nonstandard	Nonstandard
Size	12.00 mm × 12.00 mm	12.24 mm × 12.24 mm
Height - Seated (Max)	4.50 mm	4.50 mm
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	MSL 1 (Unlimited)	MSL 1 (Unlimited)

Engineering Selection Recommendations

Both the Würth Elektronik 7447715906 and Pulse Electronics P1168.501NLT are active production components with full RoHS3 compliance and MSL 1 moisture sensitivity ratings, making them suitable for equivalent selection in surface mount applications.

The Pulse Electronics P1168.501NLT offers advantages in current handling capacity (14 A versus 9.5 A) and significantly lower DC resistance (2.3 mOhm versus 5.5 mOhm), resulting in reduced power dissipation. The inductance difference of 100 nH (500 nH versus 600 nH) falls within the ±30% tolerance specification of both parts and is acceptable for applications where inductance tolerance is the controlling design parameter.

The Würth Elektronik 7447715906 provides a higher self-resonant frequency (160 MHz versus 40 MHz), which may be preferred in high-frequency applications where resonance characteristics are critical to circuit performance.

Selection between these parts should be based on specific application requirements regarding current capacity, DC loss budget, and frequency response characteristics.

Frequently Asked Questions (FAQ)

Q: Can the Pulse Electronics P1168.501NLT directly replace the Würth Elektronik 7447715906?

A: Yes, within the constraints of application-specific requirements. Both parts are shielded wirewound inductors with identical mounting type, package class, and physical height. The 100 nH inductance difference (500 nH versus 600 nH) represents a 16.7% variation, which is within the ±30% tolerance specification. Circuit validation is required to confirm that the lower inductance value and different self-resonant frequency do not adversely affect circuit performance.

Q: What are the key differences in electrical performance?

A: The Pulse Electronics substitute provides superior current handling (14 A versus 9.5 A) and significantly lower DC resistance (2.3 mOhm versus 5.5 mOhm), reducing resistive losses by approximately 58%. The Würth Elektronik part offers higher self-resonant frequency (160 MHz versus 40 MHz), which may be advantageous in applications sensitive to high-frequency behavior.

Q: Are both parts suitable for automotive applications?

A: The Würth Elektronik 7447715906 carries AEC-Q200 qualification, confirming suitability for automotive environments. The Pulse Electronics P1168.501NLT does not list AEC-Q200 certification in the provided specifications. For automotive applications, the Würth Elektronik part is the specified choice.

Q: What is the physical compatibility between these parts?

A: Both parts are surface mount components with identical height (4.50 mm maximum). The footprint dimensions differ slightly (12.00 mm × 12.00 mm versus 12.24 mm × 12.24 mm), representing a 2% increase in board area. PCB layout verification is required to confirm that the marginally larger footprint does not create placement conflicts.

Q: How do the operating temperature ranges compare?

A: The Pulse Electronics P1168.501NLT supports a slightly wider temperature range (-40°C to 130°C) compared to the Würth Elektronik 7447715906 (-40°C to 125°C). Both parts exceed standard industrial temperature requirements and are suitable for equivalent selection in temperature-constrained applications.

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