SWS-0.38-118 Equivalent & Substitute Parts

Part Overview

The SWS-0.38-118 is a 118 µH unshielded toroidal inductor manufactured by Amgis, LLC, rated for 380 mA with 1.2Ohm DC resistance. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across the temperature range of -40°C to 125°C and meets ROHS3 compliance standards.

Key Parameters

Parameter	Value
Inductance	118 µH
Inductance Tolerance	±20%
Current Rating	380 mA
DC Resistance (DCR)	1.2Ohm
Type	Toroidal
Shielding	Unshielded
Operating Temperature Range	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the SWS-0.38-118 are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

Inductance: 118 µH (±20% tolerance)
Current Rating: 380 mA minimum
DC Resistance: 1.2Ohm
Mounting Type: Surface Mount
Operating Temperature Range: Minimum -40°C to 125°C coverage
RoHS Compliance: ROHS3 Compliant

Acceptable Variations:

Shielding type (unshielded to shielded conversion acceptable for EMI-sensitive applications)
Physical dimensions (within nonstandard toroidal package constraints)
Moisture Sensitivity Level (MSL 1 or MSL 2)
Manufacturer (Amgis, LLC or Pulse Electronics)

Two substitute parts meet these criteria: SH150S-0.38-118 (Amgis, LLC) and PE-53811SNL (Pulse Electronics).

Parameter Comparison

Parameter	SWS-0.38-118	SH150S-0.38-118	PE-53811SNL
Manufacturer	Amgis, LLC	Amgis, LLC	Pulse Electronics
Inductance	118 µH	118 µH	118 µH
Inductance Tolerance	±20%	±20%	±20%
Current Rating (Amps)	380 mA	380 mA	380 mA
DC Resistance (DCR)	1.2Ohm	1.2Ohm	1.2Ohm
Type	Toroidal	Toroidal	Toroidal
Shielding	Unshielded	Unshielded	Shielded
Operating Temperature Range	-40°C ~ 125°C	-40°C ~ 125°C	-40°C ~ 130°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	2 (1 Year)	1 (Unlimited)
Product Status	Obsolete	Active	Active
Packaging	-	Tape & Reel (TR)	Bulk
Size / Dimension (L x W)	0.394" x 0.394" (10.00mm x 10.00mm)	0.441" x 0.433" (11.20mm x 11.00mm)	0.440" x 0.435" (11.18mm x 11.05mm)
Height - Seated (Max)	0.266" (6.75mm)	0.301" (7.65mm)	0.360" (9.14mm)

Engineering Selection Recommendations

SH150S-0.38-118 (Amgis, LLC): This part is the primary substitute for the obsolete SWS-0.38-118. Both are manufactured by Amgis, LLC and share identical electrical specifications. The SH150S-0.38-118 is active in production with Tape & Reel packaging, making it suitable for automated assembly processes. Physical dimensions are slightly larger, requiring PCB layout verification. MSL rating of 2 (1 Year) requires standard moisture control during storage and handling. This option is recommended for direct replacement in existing designs.

PE-53811SNL (Pulse Electronics): This part provides an alternative from a different manufacturer with identical electrical performance. The key distinction is shielding: PE-53811SNL is shielded, whereas the original SWS-0.38-118 is unshielded. The shielded design offers improved EMI performance in noise-sensitive applications. Operating temperature range extends to 130°C, providing additional thermal margin. Height is greater at 0.360" (9.14mm), requiring PCB clearance verification. MSL rating of 1 (Unlimited) provides superior moisture tolerance. This option is suitable when EMI mitigation or extended temperature operation is required.

Frequently Asked Questions (FAQ)

Q: Can SH150S-0.38-118 directly replace SWS-0.38-118 in existing designs?

A: Yes. Both parts share identical electrical specifications: 118 µH inductance, 380 mA current rating, 1.2Ohm DC resistance, and -40°C to 125°C operating range. Physical dimensions differ slightly (10.00mm vs. 11.20mm length), requiring PCB layout verification before implementation.

Q: What is the difference between the unshielded SWS-0.38-118 and shielded PE-53811SNL?

A: Shielding reduces electromagnetic interference (EMI) radiation. The PE-53811SNL shielded design is suitable for applications requiring EMI suppression. The unshielded SWS-0.38-118 and SH150S-0.38-118 are appropriate for applications without EMI constraints. Shielding does not affect the core electrical parameters (inductance, current rating, DCR).

Q: Are there packaging differences between substitute parts?

A: Yes. SH150S-0.38-118 is supplied in Tape & Reel (TR) packaging for automated assembly. PE-53811SNL is supplied in Bulk packaging. Packaging selection depends on production volume and assembly process requirements.

Q: What is the significance of MSL (Moisture Sensitivity Level) ratings?

A: MSL 1 (Unlimited) allows indefinite storage without moisture control. MSL 2 (1 Year) requires moisture control and baking procedures if storage exceeds one year. SWS-0.38-118 and PE-53811SNL have MSL 1. SH150S-0.38-118 has MSL 2, requiring standard moisture management during inventory storage.

Q: Can PE-53811SNL be used in place of SH150S-0.38-118?

A: Yes, with considerations. Both meet electrical specifications. PE-53811SNL is shielded (additional EMI protection), has MSL 1 (better moisture tolerance), and operates to 130°C (5°C higher). Physical height is greater (9.14mm vs. 7.65mm), requiring PCB clearance verification.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. SWS-0.38-118, SH150S-0.38-118, and PE-53811SNL are all ROHS3 compliant and REACH unaffected, meeting environmental regulatory requirements.

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