HSMS-280C-TR2G Equivalent & Substitute Parts

Part Overview

The HSMS-280C-TR2G 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 component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and production continuity. The part's primary application is in RF signal detection and switching circuits where low capacitance and fast switching characteristics are required.

Substiute Parts

HSMS-280C-TR2G

Broadcom LimitedIn Stock: 957HSMS-280C-TR2G 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-TR2G is determined by the following critical parameters:

• Diode Configuration: Must be 1 pair series connection Schottky technology
• Package Compatibility: SC-70 / SOT-323 surface mount package required
• Voltage Rating: Minimum 70V peak reverse voltage to maintain circuit protection margins
• Current Capability: Minimum 1A maximum current rating
• Operating Temperature: Support for 150°C junction temperature operation
• Capacitance Characteristics: Low capacitance profile suitable for RF applications

Two substitute parts meet these criteria with specific trade-offs in current and voltage specifications:

BAS70-04W,115 (Nexperia USA Inc.) maintains the 70V voltage rating with reduced current capacity (70mA per diode) and active product status with AEC-Q101 automotive qualification.

BAT54SWFILM (STMicroelectronics) provides higher current capacity (300mA per diode) but operates at a reduced voltage rating of 40V, suitable only for applications where the lower voltage threshold is acceptable.

Parameter Comparison

Engineering Selection Recommendations

BAS70-04W,115 is the primary substitute for voltage-critical applications. This part maintains the 70V reverse voltage specification of the original HSMS-280C-TR2G and is manufactured by Nexperia USA Inc. with active product status. The part carries AEC-Q101 automotive qualification and ROHS3 compliance, supporting long-term supply chain stability. Current capacity is reduced to 70mA per diode, requiring circuit verification that this limitation does not exceed application requirements.

BAT54SWFILM serves as an alternative for applications where the 70V voltage rating is not a limiting factor and higher current capacity (300mA per diode) is beneficial. This STMicroelectronics part is also active with ROHS3 compliance. The 40V reverse voltage rating represents a significant reduction from the original specification and must be evaluated against circuit protection requirements and maximum signal levels.

Both substitute parts share identical package specifications (SC-70, SOT-323), moisture sensitivity ratings (MSL 1), and regulatory compliance profiles (REACH Unaffected, ECCN EAR99), ensuring mechanical and environmental compatibility with the original design.

Frequently Asked Questions (FAQ)

Q: Can BAS70-04W,115 be used as a direct replacement for HSMS-280C-TR2G?

A: BAS70-04W,115 is mechanically and electrically compatible for applications where the maximum current requirement does not exceed 70mA per diode. Both parts share the same 70V voltage rating, SC-70 SOT-323 package, and 150°C operating temperature specification. Circuit validation is required to confirm current capacity is sufficient.

Q: What is the primary limitation of BAT54SWFILM as a substitute?

A: BAT54SWFILM operates at a maximum reverse voltage of 40V compared to the 70V rating of HSMS-280C-TR2G. This part is suitable only for circuits where the applied reverse voltage does not approach or exceed 40V. The higher current capacity (300mA per diode) does not offset this voltage limitation in voltage-sensitive applications.

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

A: Yes. Both BAS70-04W,115 and BAT54SWFILM are supplied in SC-70 SOT-323 surface mount packages, identical to the original HSMS-280C-TR2G. BAS70-04W,115 is available in Tape & Reel format, while BAT54SWFILM is supplied in Cut Tape and Digi-Reel format.

Q: What compliance certifications should I verify for production use?

A: Both substitute parts are ROHS3 compliant and REACH unaffected. BAS70-04W,115 carries AEC-Q101 automotive qualification. Verify that your application requirements align with these certifications and that your supply chain documentation reflects the selected substitute part number.

Q: Why is the original HSMS-280C-TR2G classified as obsolete?

A: Obsolete status indicates the part is no longer manufactured or supported by Broadcom Limited. Substitute parts must be identified and qualified to ensure design continuity and production support. Both recommended alternatives are active products with established supply chains.