SWT-0.68-39 Equivalent & Substitute Parts

Part Overview

The SWT-0.68-39 is a 39 µH unshielded toroidal inductor manufactured by Amgis, LLC, rated for 680 mA with 300 mOhm DC resistance. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part operates across the industrial temperature range of -40°C to 125°C and meets ROHS3 compliance standards.

Substiute Parts

SWT-0.68-39

Amgis, LLCIn Stock: 1168SWT-0.68-39 Datasheet

Current PartRFQ

SH150T-0.68-39

Amgis, LLCIn Stock: 1183SH150T-0.68-39 Datasheet

SimilarRFQ

PE-53814NL

Pulse ElectronicsIn Stock: 988PE-53814NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SWT-0.68-39 must maintain electrical equivalence across the following critical parameters:

• Inductance value: 39 µH with ±20% tolerance
• Current rating: 680 mA minimum
• DC resistance: 300 mOhm
• Core material: Iron Powder
• Operating temperature range: -40°C to 125°C minimum
• Mounting configuration: Through Hole toroidal inductor
• Compliance: ROHS3 and REACH standards

Physical package variations (radial orientation and terminal configuration) are permitted provided electrical performance remains equivalent. Shielding characteristics may differ based on application requirements.

Parameter Comparison

Engineering Selection Recommendations

SH150T-0.68-39 is the primary substitute for SWT-0.68-39. Both components are manufactured by Amgis, LLC with identical electrical specifications and operating temperature range. The SH150T-0.68-39 maintains active product status, ensuring long-term availability and supply chain stability. Physical dimensions differ slightly, with the SH150T-0.68-39 measuring 0.433" L x 0.441" W versus 0.339" L x 0.339" W for the original part. Terminal configuration changes from open to corner terminals, requiring PCB layout verification.

PE-53814NL from Pulse Electronics provides an alternative substitute with equivalent electrical performance. This part introduces shielding, which may be beneficial in noise-sensitive applications but requires confirmation that shielding does not conflict with circuit design intent. The operating temperature range extends to 130°C, providing additional thermal margin. Physical orientation differs (vertical versus horizontal), necessitating mechanical compatibility assessment.

Both substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the original component.

Frequently Asked Questions (FAQ)

Q: Can SH150T-0.68-39 directly replace SWT-0.68-39 without circuit modification?

A: Electrical substitution is valid. The inductance, current rating, and DC resistance are identical. PCB layout changes are required due to different physical dimensions and terminal configuration (corner terminals versus open terminals).

Q: What is the primary difference between SH150T-0.68-39 and PE-53814NL?

A: Both maintain identical inductance, current rating, and DC resistance. SH150T-0.68-39 is unshielded with horizontal orientation; PE-53814NL is shielded with vertical orientation. Shielding in PE-53814NL reduces electromagnetic interference but increases physical size and may affect circuit layout.

Q: Is the shielding in PE-53814NL a functional requirement or optional?

A: Shielding is not present in the original SWT-0.68-39 specification. PE-53814NL shielding is an additional feature that may benefit EMI-sensitive applications but is not required for electrical equivalence.

Q: Are packaging differences between these parts significant?

A: Yes. SWT-0.68-39 uses open radial horizontal configuration; SH150T-0.68-39 uses corner terminal radial horizontal configuration; PE-53814NL uses corner terminal radial vertical configuration. PCB footprint and mounting hole placement must be verified for each substitute.

Q: Do all three parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, meeting equivalent regulatory requirements.

Q: What is the inventory status of substitute parts?

A: SH150T-0.68-39 has 1143 pieces in stock with active product status. PE-53814NL has 953 pieces in stock with active product status. Both provide reliable supply availability compared to the obsolete SWT-0.68-39.