SC1608C-100 Equivalent & Substitute Parts

Part Overview

The SC1608C-100 is a 10 µH shielded inductor manufactured by Signal Transformer, rated for 2 A continuous current with a maximum DC resistance of 75 mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The shielded construction and specific electrical ratings define the functional requirements for equivalent components.

Key Parameters

Parameter	SC1608C-100
Inductance	10 µH
Current Rating	2 A
DC Resistance (DCR)	75 mOhm Max
Saturation Current (Isat)	370 mA
Shielding	Shielded
Mounting Type	Surface Mount
Package Size	6.60mm x 4.45mm x 2.92mm
Operating Temperature	-40°C to 125°C
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the SC1608C-100 is based on the following critical parameters:

Inductance value must match at 10 µH, measured at 100 kHz test frequency. Current rating and saturation current determine load-carrying capability; substitute parts must support the application's maximum current demand. DC resistance directly affects power dissipation and thermal performance. Physical dimensions and mounting type ensure mechanical compatibility with existing PCB layouts. Shielding characteristics may differ between main and substitute parts; applications sensitive to electromagnetic interference require evaluation of shielding performance differences.

The Würth Elektronik 7445510 shares the same inductance value, identical physical dimensions, and surface mount configuration. However, key differences exist in current rating (1.2 A vs. 2 A), DC resistance (160 mOhm vs. 75 mOhm), shielding type (unshielded vs. shielded), and core construction (drum core wirewound vs. shielded design).

Parameter Comparison

Parameter	SC1608C-100	7445510 (Würth Elektronik)
Manufacturer	Signal Transformer	Würth Elektronik
Inductance	10 µH	10 µH
Inductance Tolerance	±30%	±20%
Current Rating	2 A	1.2 A
Saturation Current (Isat)	370 mA	1.1 A
DC Resistance (DCR)	75 mOhm Max	160 mOhm Max
Shielding	Shielded	Unshielded
Core Type	Shielded (unspecified core)	Drum Core, Wirewound Ferrite
Frequency - Self Resonant	Not specified	26 MHz
Operating Temperature	-40°C to 125°C	-40°C to 100°C
Package Size	6.60mm x 4.45mm x 2.92mm	6.60mm x 4.45mm x 2.92mm
Mounting Type	Surface Mount	Surface Mount
Product Status	Obsolete	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

The SC1608C-100 is obsolete; the Würth Elektronik 7445510 is an active product with current manufacturing support and availability. Both components are ROHS3 compliant and carry MSL rating 1, meeting environmental and moisture sensitivity requirements.

Direct substitution of the 7445510 for the SC1608C-100 requires circuit-level evaluation due to three material differences: reduced current rating (1.2 A vs. 2 A), increased DC resistance (160 mOhm vs. 75 mOhm), and removal of shielding (unshielded vs. shielded). Applications operating at or near 2 A continuous current cannot use the 7445510 without thermal and saturation analysis. Circuits sensitive to electromagnetic interference or requiring shielded inductors must assess the impact of the unshielded drum core design. The higher DC resistance of the 7445510 will increase power dissipation by approximately 113%, affecting thermal management.

The 7445510 is suitable as a substitute only in applications where current demand does not exceed 1.2 A, electromagnetic shielding is not required, and the increased power loss is acceptable.

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7445510 directly replace the SC1608C-100 in all applications?

A: No. The 7445510 has a lower current rating (1.2 A vs. 2 A), higher DC resistance (160 mOhm vs. 75 mOhm), and is unshielded. Substitution is valid only for circuits operating below 1.2 A where shielding is not required.

Q: What is the impact of the increased DC resistance in the 7445510?

A: The 7445510 has 160 mOhm maximum resistance compared to 75 mOhm in the SC1608C-100. This increases power dissipation by approximately 113% at equivalent current levels, requiring thermal evaluation in the target application.

Q: Are both parts physically compatible with the same PCB footprint?

A: Yes. Both components share identical physical dimensions (6.60mm x 4.45mm x 2.92mm) and surface mount configuration, allowing direct footprint compatibility.

Q: Does the removal of shielding affect circuit performance?

A: Shielding reduces electromagnetic interference coupling. Applications sensitive to EMI or operating in electromagnetically noisy environments may experience performance degradation with the unshielded 7445510. Circuit-level testing is required to confirm compatibility.

Q: What is the inductance tolerance difference between these parts?

A: The SC1608C-100 has ±30% tolerance; the 7445510 has ±20% tolerance. The tighter tolerance of the 7445510 may be beneficial for precision applications.

Q: Are both parts RoHS compliant?

A: Yes. Both the SC1608C-100 and 7445510 are ROHS3 compliant and carry MSL rating 1 (unlimited moisture sensitivity level).

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