S1008-471K Equivalent & Substitute Parts

Part Overview

The S1008-471K is a fixed surface mount shielded inductor manufactured by API Delevan Inc. with a nominal inductance of 470 nH, rated for 815 mA continuous current, and maximum DC resistance of 170 mOhm. The component is housed in a 1008 (2520 Metric) package and operates across the temperature range of -55°C to 125°C. This part is currently active in production with 1009 pieces available in new original stock. Substitute parts are identified when equivalent electrical and mechanical parameters are required for design flexibility, inventory management, or compliance with specific regulatory standards.

Key Parameters

Parameter	Value	Unit
Inductance	470	nH
Inductance Tolerance	±10	%
Current Rating	815	mA
DC Resistance (Max)	170	mOhm
Shielding	Shielded	—
Package / Case	1008 (2520 Metric)	—
Mounting Type	Surface Mount	—
Operating Temperature Range	-55 to 125	°C
Q @ Frequency	40 @ 25 MHz	—
Self Resonant Frequency	255	MHz

Substitute Part Grouping Explanation

Substitute parts for the S1008-471K are identified based on strict equivalence of the following critical parameters:

Inductance Value: 470 nH with ±10% tolerance
Current Rating: 815 mA minimum
DC Resistance: 170 mOhm maximum
Package / Case: 1008 (2520 Metric) surface mount
Shielding: Shielded construction
Operating Temperature: -55°C to 125°C minimum range
Core Material: Ferrite
Frequency Characteristics: Q @ 25 MHz and self-resonant frequency

The S1008R-471K qualifies as a direct substitute because it maintains identical electrical specifications and mechanical dimensions while differing only in series designation and regulatory compliance status.

Parameter Comparison

Parameter	S1008-471K	S1008R-471K	Match
Inductance	470 nH	470 nH	✓
Inductance Tolerance	±10%	±10%	✓
Current Rating (Amps)	815 mA	815 mA	✓
DC Resistance (Max)	170 mOhm	170 mOhm	✓
Shielding	Shielded	Shielded	✓
Package / Case	1008 (2520 Metric)	1008 (2520 Metric)	✓
Size / Dimension	0.115" L x 0.105" W (2.92mm x 2.66mm)	0.115" L x 0.105" W (2.92mm x 2.66mm)	✓
Height - Seated (Max)	0.095" (2.41mm)	0.095" (2.41mm)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	✓
Q @ Freq	40 @ 25MHz	40 @ 25MHz	✓
Frequency - Self Resonant	255 MHz	255 MHz	✓
Material - Core	Ferrite	Ferrite	✓
Inductance Frequency - Test	25 MHz	25 MHz	✓
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	✓
REACH Status	REACH Unaffected	REACH Unaffected	✓
ECCN	EAR99	EAR99	✓
HTSUS	8504.50.8000	8504.50.8000	✓

Engineering Selection Recommendations

S1008-471K is suitable for applications where RoHS non-compliant components are acceptable or where legacy design requirements specify this exact part number. The component is active in production with adequate inventory (1009 pieces).

S1008R-471K is the preferred substitute when RoHS3 compliance is required. This variant maintains identical electrical performance and mechanical compatibility while meeting current environmental and regulatory standards. The S1008R-471K series designation indicates compliance with RoHS3 requirements. Inventory availability is higher at 1725 pieces.

Both parts are functionally interchangeable in circuit applications where the 470 nH inductance, 815 mA current rating, and 170 mOhm DC resistance specifications are required. Selection between the two should be based on regulatory compliance requirements for the end application.

Frequently Asked Questions (FAQ)

Q: Can S1008R-471K be used as a direct replacement for S1008-471K?

A: Yes. The S1008R-471K is electrically and mechanically equivalent to the S1008-471K. All critical parameters including inductance, current rating, DC resistance, package dimensions, and operating temperature range are identical. The primary difference is RoHS3 compliance status.

Q: What is the difference between S1008-471K and S1008R-471K?

A: The S1008R-471K is RoHS3 compliant, while the S1008-471K is RoHS non-compliant. All other specifications are identical. The "R" designation in the series name indicates RoHS compliance.

Q: Are the physical dimensions identical?

A: Yes. Both parts use the 1008 (2520 Metric) package with dimensions of 0.115" L x 0.105" W (2.92mm x 2.66mm) and maximum seated height of 0.095" (2.41mm). They are pin-compatible and footprint-compatible.

Q: What is the moisture sensitivity level for these inductors?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Yes. Both parts have identical frequency characteristics with Q @ 25 MHz of 40 and self-resonant frequency of 255 MHz, making them suitable for the same high-frequency circuit applications.

Q: What is the current handling capability?

A: Both parts are rated for 815 mA continuous current with a maximum DC resistance of 170 mOhm, providing consistent thermal and electrical performance.

Q: Are there any temperature-related differences?

A: No. Both parts operate across the identical temperature range of -55°C to 125°C.

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