SWS-4.50-19 Equivalent & Substitute Parts

Part Overview

The SWS-4.50-19 is a 19 µH unshielded toroidal inductor rated for 4.5 A continuous current with 20mOhm DC resistance, manufactured by Amgis, LLC. This component is designed for surface mount applications in power conversion and filtering circuits requiring fixed inductance values in the microhenry range.

The SWS-4.50-19 carries an Obsolete product status. Identifying qualified substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or repair requirements for systems utilizing this inductor specification.

Substiute Parts

SWS-4.50-19

Amgis, LLCIn Stock: 844SWS-4.50-19 Datasheet

Current PartRFQ

SH150S-4.50-19

Amgis, LLCIn Stock: 1102SH150S-4.50-19 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWS-4.50-19 is determined by strict equivalence across the following electrical and mechanical parameters:

• Inductance value: 19 µH (exact match required)
• Current rating: 4.5 A (exact match required)
• DC resistance: 20mOhm (exact match required)
• Inductance tolerance: ±20% (exact match required)
• Core material: Iron Powder (exact match required)
• Shielding configuration: Unshielded (exact match required)
• Operating temperature range: -40°C ~ 125°C (exact match required)
• Mounting type: Surface Mount (exact match required)

The SH150S-4.50-19 meets all substitution criteria and qualifies as a direct equivalent part. Dimensional variations and packaging differences do not affect electrical performance within the specified operating parameters.

Parameter Comparison

Engineering Selection Recommendations

The SH150S-4.50-19 is the qualified substitute for the obsolete SWS-4.50-19. Both parts are manufactured by Amgis, LLC and maintain identical electrical specifications across inductance, current rating, DC resistance, and tolerance parameters.

The SH150S-4.50-19 carries Active product status, ensuring ongoing availability and supply chain support. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for current manufacturing and deployment.

Dimensional differences between the two parts are minor. The SH150S-4.50-19 exhibits a 0.032" (0.80mm) increase in length and a 0.079" (2.00mm) reduction in seated height compared to the SWS-4.50-19. These variations fall within typical PCB layout tolerances for toroidal inductor footprints and do not impact electrical performance.

The SH150S-4.50-19 is supplied in Tape & Reel packaging, providing standardized handling and automated assembly compatibility. The SWS-4.50-19 utilized nonstandard packaging, which is no longer available due to obsolescence.

Frequently Asked Questions (FAQ)

Q: Can the SH150S-4.50-19 replace the SWS-4.50-19 in existing designs?

A: Yes. The SH150S-4.50-19 meets all electrical specifications required for direct substitution. Inductance, current rating, DC resistance, tolerance, core material, shielding, and operating temperature range are identical. PCB layout modifications may be necessary due to dimensional differences, but electrical performance remains equivalent.

Q: What are the key differences between these two parts?

A: The primary differences are product status (Obsolete vs. Active), packaging format (Nonstandard vs. Tape & Reel), physical dimensions, and moisture sensitivity level. Electrical performance is identical.

Q: Are there any compliance or certification concerns with substitution?

A: No. Both parts maintain ROHS3 compliance and REACH unaffected status. Regulatory requirements are satisfied by either part.

Q: Does the dimensional difference affect circuit performance?

A: No. The dimensional variations do not alter inductance value, current handling capability, or DC resistance. PCB layout adjustments may be required for mechanical fit, but electrical characteristics remain unchanged.

Q: What is the moisture sensitivity difference between these parts?

A: The SWS-4.50-19 carries MSL 1 (Unlimited), while the SH150S-4.50-19 carries MSL 2 (1 Year). MSL 2 requires storage in controlled humidity conditions and limits shelf life to one year after packaging opening. Standard moisture control practices during assembly and storage are sufficient for MSL 2 components.