HSMS-280C-TR1G Equivalent & Substitute Parts

Part Overview

The HSMS-280C-TR1G is an RF Schottky diode manufactured by Broadcom Limited, configured as a 1 pair series connection with a peak reverse voltage rating of 70V and maximum current of 1A in an SC-70 SOT-323 surface mount package. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The diode is designed for RF applications requiring low capacitance and fast switching characteristics typical of Schottky technology.

Substiute Parts

HSMS-280C-TR1G

Broadcom LimitedIn Stock: 3240HSMS-280C-TR1G Datasheet

Current PartRFQ

BAS70-04W,115

Nexperia USA Inc.In Stock: 98493BAS70-04W,115 Datasheet

MFR RecommendedRFQ

BAT54SWFILM

STMicroelectronicsIn Stock: 32223BAT54SWFILM Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMS-280C-TR1G is determined by the following critical parameters:

• Diode Configuration: Must be 1 pair series connection Schottky technology
• Package / Case: Must be SC-70 or SOT-323 (identical footprint and pinout)
• Voltage Rating: Peak reverse voltage must be equal to or greater than 70V
• Current Capability: Must support the application's current requirements
• Operating Temperature: Must support the maximum junction temperature of 150°C
• Mounting Type: Must be surface mount compatible

The identified substitute parts maintain the same package footprint and diode configuration, ensuring mechanical and electrical compatibility within the specified voltage and current parameters.

Parameter Comparison

Engineering Selection Recommendations

BAS70-04W,115 (Nexperia USA Inc.) is the primary substitute for the HSMS-280C-TR1G. This part maintains identical voltage rating (70V), matching diode configuration, package footprint, and maximum junction temperature. The part is active in production with AEC-Q101 automotive qualification and ROHS3 compliance. Current rating of 70mA per diode is lower than the original 1A specification; selection of this substitute requires verification that application current requirements do not exceed 70mA.

BAT54SWFILM (STMicroelectronics) is a secondary substitute option. This part shares the same package, diode configuration, and mounting type. However, the peak reverse voltage rating is 40V, which is below the original 70V specification. This part is suitable only for applications where the actual operating voltage does not exceed 40V. The part offers higher current capability at 300mA and is ROHS3 compliant with active production status.

Both substitute parts are actively manufactured and comply with current environmental regulations, providing long-term procurement stability compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can BAS70-04W,115 directly replace HSMS-280C-TR1G in all applications?

A: BAS70-04W,115 is mechanically and electrically compatible in terms of package, configuration, and voltage rating. However, the current rating is reduced from 1A to 70mA per diode. Substitution is valid only if the application current does not exceed 70mA.

Q: Why is BAT54SWFILM listed as a substitute if the voltage rating is lower?

A: BAT54SWFILM maintains the same package footprint, diode configuration, and mounting type. It is listed as a substitute option for applications where the actual operating voltage is 40V or below. For circuits requiring the full 70V rating, this part is not suitable.

Q: Are both substitute parts available in the same packaging format?

A: BAS70-04W,115 is supplied in Tape & Reel (TR) format. BAT54SWFILM is supplied in Cut Tape (CT) & Digi-Reel format. Both are surface mount packages compatible with automated assembly processes.

Q: What compliance certifications should I verify for my application?

A: BAS70-04W,115 carries AEC-Q101 automotive qualification and ROHS3 compliance. BAT54SWFILM carries ROHS3 compliance. Both parts have MSL rating of 1 (Unlimited), indicating no moisture sensitivity restrictions. Verify that these certifications meet your specific application and regulatory requirements.

Q: Can I use either substitute interchangeably?

A: No. Selection between BAS70-04W,115 and BAT54SWFILM depends on your application's voltage and current requirements. BAS70-04W,115 is appropriate for 70V applications with currents up to 70mA. BAT54SWFILM is appropriate only for applications with maximum voltage of 40V and currents up to 300mA.