SWS-0.68-39 Equivalent & Substitute Parts

Part Overview

The SWS-0.68-39 is a 39 µH unshielded toroidal inductor manufactured by Amgis, LLC, rated for 680 mA with 300mOhm DC resistance. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is surface-mounted in a nonstandard package measuring 10.00mm x 10.00mm with a maximum seated height of 6.75mm.

Substiute Parts

SWS-0.68-39

Amgis, LLCIn Stock: 1042SWS-0.68-39 Datasheet

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SH150S-0.68-39

Amgis, LLCIn Stock: 825SH150S-0.68-39 Datasheet

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PE-53814SNL

Pulse ElectronicsIn Stock: 952PE-53814SNL Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SWS-0.68-39 are qualified based on the following electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance: 39 µH (exact match required)
• Tolerance: ±20% (exact match required)
• Current Rating: 680 mA (exact match required)
• DC Resistance: 300mOhm (exact match required)
• Operating Temperature Range: minimum -40°C to 125°C

Mechanical Compatibility Criteria:

• Type: Toroidal inductor
• Mounting Type: Surface Mount
• Package: Nonstandard (physical dimensions must accommodate board layout)

Compliance Criteria:

• RoHS3 Compliant
• REACH Unaffected
• ECCN: EAR99

Two substitute parts meet these criteria: SH150S-0.68-39 (Amgis, LLC) and PE-53814SNL (Pulse Electronics). Both maintain identical electrical specifications while differing in shielding characteristics and physical dimensions.

Parameter Comparison

Engineering Selection Recommendations

SH150S-0.68-39 (Amgis, LLC): This substitute maintains identical electrical specifications and core material composition (iron powder) to the original SWS-0.68-39. The part is active in production with 740 units in stock. Physical dimensions increase marginally (11.20mm x 11.00mm vs. 10.00mm x 10.00mm), and seated height increases to 7.65mm. MSL rating is 2 (1 Year) compared to the original's MSL 1. This part is suitable for applications where the slightly larger footprint and MSL 2 rating are acceptable.

PE-53814SNL (Pulse Electronics): This substitute provides identical electrical specifications but introduces shielded construction versus the original unshielded design. Operating temperature range extends to 130°C. Physical dimensions are comparable to SH150S-0.68-39 (11.18mm x 11.05mm), but seated height is significantly greater at 9.14mm. MSL rating is 1 (Unlimited). Selection of this part is appropriate for applications requiring electromagnetic shielding or extended temperature operation, provided the increased height accommodates board layout constraints.

Both substitutes are ROHS3 compliant, REACH unaffected, and carry EAR99 classification, matching the original part's regulatory status.

Frequently Asked Questions (FAQ)

Q: Can SH150S-0.68-39 directly replace SWS-0.68-39 in existing designs? A: Electrical substitution is direct due to identical inductance, tolerance, current rating, and DC resistance specifications. Physical dimensions increase from 10.00mm x 10.00mm to 11.20mm x 11.00mm, and seated height increases from 6.75mm to 7.65mm. Board layout verification is required. MSL rating changes from 1 to 2, requiring adjusted moisture handling procedures.

Q: What is the primary difference between SH150S-0.68-39 and PE-53814SNL? A: Both maintain identical electrical specifications. PE-53814SNL is shielded while SH150S-0.68-39 is unshielded. PE-53814SNL has greater seated height (9.14mm vs. 7.65mm) and extended operating temperature range (-40°C to 130°C vs. -40°C to 125°C). PE-53814SNL has MSL 1 rating versus SH150S-0.68-39's MSL 2.

Q: Are all three parts RoHS compliant? A: Yes. SWS-0.68-39, SH150S-0.68-39, and PE-53814SNL are all ROHS3 compliant with REACH unaffected status.

Q: Which substitute is recommended for space-constrained applications? A: SH150S-0.68-39 offers the smallest footprint increase (11.20mm x 11.00mm) and lowest seated height (7.65mm) among the substitutes, though both exceed the original SWS-0.68-39 dimensions (10.00mm x 10.00mm, 6.75mm height).

Q: Can PE-53814SNL be used in applications originally designed for unshielded inductors? A: Electrical performance is equivalent. The shielded construction may alter electromagnetic coupling characteristics in the circuit. Physical dimensions and increased seated height (9.14mm) must be verified against board layout constraints.