SWS-5.0-33 Equivalent & Substitute Parts

Part Overview

The SWS-5.0-33 is a 36 µH unshielded toroidal inductor manufactured by Amgis, LLC, rated for 5 A continuous current with 19 mOhm DC resistance. This component is designed for surface mount applications in power conversion and filtering circuits. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating. Substitute parts are identified to provide design flexibility when the primary part is unavailable or when application requirements permit alternative electrical or mechanical characteristics within specified tolerances.

Substiute Parts

SWS-5.0-33

Amgis, LLCIn Stock: 811SWS-5.0-33 Datasheet

Current PartRFQ

P0849SNL

Pulse ElectronicsIn Stock: 1519P0849SNL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SWS-5.0-33 is determined by the following critical parameters:

• Inductance Value: The substitute part P0849SNL provides 33 µH, which falls within the ±20% tolerance band of the primary part (36 µH ±20% = 28.8 µH to 43.2 µH). This tolerance overlap permits functional equivalence in applications where inductance variation within specification is acceptable.

• Current Rating: Both parts maintain identical 5 A current rating, ensuring equivalent thermal and electrical performance under rated load conditions.

• DC Resistance: Both parts specify 19 mOhm DCR, providing identical power dissipation characteristics and thermal behavior.

• Operating Temperature Range: Both parts operate across -40°C to 130°C, ensuring compatibility in identical thermal environments.

• Mounting Type: Both parts are surface mount toroidal inductors with nonstandard package dimensions, compatible with the same assembly processes.

• Compliance: Both parts maintain ROHS3 compliance, REACH unaffected status, and unlimited moisture sensitivity rating (MSL 1).

The primary distinction between the main part and substitute is shielding configuration: the SWS-5.0-33 is unshielded, while the P0849SNL is shielded. This difference affects electromagnetic coupling characteristics but does not preclude substitution when shielding requirements are not critical to circuit performance.

Parameter Comparison

Engineering Selection Recommendations

Both the SWS-5.0-33 and P0849SNL maintain Active product status with equivalent regulatory compliance profiles. Selection between these parts should be based on the following criteria:

SWS-5.0-33 (Primary Part): Select when unshielded inductor characteristics are required or when the specific inductance value of 36 µH is critical to circuit performance. This part is suitable for applications where electromagnetic coupling to adjacent components is acceptable or beneficial.

P0849SNL (Substitute Part): Select when shielded inductor characteristics are required to minimize electromagnetic interference or when the 33 µH inductance value is compatible with circuit design tolerances. The shielded configuration reduces radiated emissions and susceptibility to external magnetic fields.

Both parts satisfy identical electrical performance requirements for current rating, DC resistance, and operating temperature range. The choice between shielded and unshielded configuration should be determined by circuit layout requirements and electromagnetic compatibility considerations specific to the application.

Frequently Asked Questions (FAQ)

Q: Can P0849SNL directly replace SWS-5.0-33 in all applications?

A: Substitution is permissible when the 33 µH inductance value falls within the acceptable tolerance band for the circuit design. The ±20% tolerance specification of both parts ensures that the 3 µH difference (8.3% variance) is within normal operating parameters. However, applications with tight inductance requirements or specific shielding needs require circuit validation.

Q: What is the impact of shielding differences between these parts?

A: The SWS-5.0-33 is unshielded, while P0849SNL is shielded. Shielding reduces electromagnetic radiation and external field susceptibility. In applications where electromagnetic interference is a concern, the shielded P0849SNL may provide superior performance. In applications where shielding is not required, both parts perform equivalently.

Q: Are the physical dimensions compatible for PCB layout?

A: Both parts are nonstandard package toroidal inductors with similar footprints. SWS-5.0-33 dimensions are 30.99 mm L × 27.00 mm W × 12.95 mm H (max). P0849SNL dimensions are 30.99 mm L × 25.40 mm W × 12.70 mm H (max). The length is identical, but width and height differ slightly. PCB layout verification is required to confirm mechanical fit.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 (unlimited) moisture sensitivity rating. Both operate across -40°C to 130°C and are suitable for identical regulatory environments.

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

A: SWS-5.0-33 tolerance range: 28.8 µH to 43.2 µH (36 µH ±20%). P0849SNL tolerance range: 26.4 µH to 39.6 µH (33 µH ±20%). The overlap range is 28.8 µH to 39.6 µH, confirming functional equivalence within specification.