SWS-1.54-77 Equivalent & Substitute Parts

Part Overview

The SWS-1.54-77 is a 77 µH unshielded toroidal inductor manufactured by Amgis, LLC, designed for surface mount applications with a current rating of 1.54 A and DC resistance of 200mOhm. This component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1074 units in stock. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

SWS-1.54-77

Amgis, LLCIn Stock: 1119SWS-1.54-77 Datasheet

Current PartRFQ

SH150S-1.54-77

Amgis, LLCIn Stock: 1402SH150S-1.54-77 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The SH150S-1.54-77 qualifies as a direct substitute based on the following critical parameters:

• Identical inductance value of 77 µH with matching ±20% tolerance
• Identical current rating of 1.54 A
• Identical DC resistance of 200mOhm
• Identical core material (Iron Powder) and unshielded configuration
• Identical operating temperature range (-40°C to 125°C)
• Identical test frequency (10 kHz)
• Both parts are ROHS3 compliant and REACH unaffected
• Both utilize surface mount technology with nonstandard package specifications

Substitution is valid when the electrical performance requirements and thermal operating conditions match the specified parameters. Physical dimension variations between the two parts do not preclude substitution provided mounting space accommodates the larger footprint of the SH150S series.

Parameter Comparison

Engineering Selection Recommendations

Both the SWS-1.54-77 and SH150S-1.54-77 are active production components from Amgis, LLC with full ROHS3 compliance and REACH unaffected status. Selection between these parts should be based on:

• PCB layout constraints: The SWS-1.54-77 has a smaller footprint (15.00mm x 15.00mm x 8.25mm) compared to the SH150S-1.54-77 (15.60mm x 15.00mm x 9.85mm)
• Moisture handling requirements: The SWS-1.54-77 carries MSL 1 (unlimited shelf life), while the SH150S-1.54-77 carries MSL 2 (1-year shelf life)
• Inventory availability: The SH150S-1.54-77 has higher stock levels (1384 units versus 1074 units)

Both parts deliver identical electrical performance across all specified parameters and are suitable for applications requiring 77 µH inductance at 1.54 A within the -40°C to 125°C operating range.

Frequently Asked Questions (FAQ)

Q: Can the SH150S-1.54-77 be used as a direct replacement for the SWS-1.54-77?

A: Yes. Both parts share identical electrical specifications including inductance (77 µH), current rating (1.54 A), DC resistance (200mOhm), core material (Iron Powder), and operating temperature range (-40°C to 125°C). Physical dimensions differ slightly; verify PCB layout accommodates the larger footprint of the SH150S series.

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

A: The primary differences are physical dimensions and moisture sensitivity level. The SWS-1.54-77 is smaller (15.00mm x 15.00mm x 8.25mm) with MSL 1 rating, while the SH150S-1.54-77 is slightly larger (15.60mm x 15.00mm x 9.85mm) with MSL 2 rating. All electrical parameters are identical.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry EAR99 ECCN classification with identical HTSUS codes (8504.50.4000).

Q: Which part should be selected for new designs?

A: Selection depends on application constraints. Choose the SWS-1.54-77 for space-constrained layouts or applications requiring extended shelf life. Choose the SH150S-1.54-77 when higher inventory availability is advantageous and PCB space permits the larger footprint.

Q: Is the inductance tolerance the same for both parts?

A: Yes. Both parts carry ±20% inductance tolerance and are tested at 10 kHz.