HSMS-2812-TR2G Equivalent & Substitute Parts

Part Overview

The HSMS-2812-TR2G is an RF Schottky diode manufactured by Broadcom Limited, configured as a 1 pair series connection with a peak reverse voltage rating of 20V and maximum current of 1A in a SOT-23-3 surface mount package. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and procurement continuity.

Substiute Parts

HSMS-2812-TR2G

Broadcom LimitedIn Stock: 1037HSMS-2812-TR2G Datasheet

Current PartRFQ

SDM40E20LS-7-F

Diodes IncorporatedIn Stock: 53160SDM40E20LS-7-F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The SDM40E20LS-7-F qualifies as a direct substitute based on the following critical parameters:

• Diode Configuration: Both parts feature 1 pair series connection Schottky topology
• Voltage Rating: Both rated at 20V DC reverse voltage maximum
• Package: Identical SOT-23-3 surface mount package (TO-236-3, SC-59)
• Moisture Sensitivity: Both classified as MSL 1 (Unlimited)
• Current Capability: The substitute supports 400mA per diode, which is within the 1A total series pair rating of the original part
• Regulatory Compliance: Both parts carry REACH Unaffected and EAR99 ECCN classifications

Parameter Comparison

Engineering Selection Recommendations

The SDM40E20LS-7-F is the manufacturer-recommended substitute for the obsolete HSMS-2812-TR2G. Selection of this alternative is justified by:

• Package Compatibility: Identical SOT-23-3 footprint enables direct PCB layout reuse without redesign
• Electrical Equivalence: Matching 20V reverse voltage rating and 1 pair series connection configuration ensure functional compatibility in RF applications
• Active Product Status: The substitute maintains active manufacturing status with established supply chain availability (53,100 pcs in stock)
• Regulatory Alignment: Both parts share identical REACH and ECCN classifications, maintaining compliance requirements
• RoHS Compliance: The substitute meets ROHS3 standards, supporting modern procurement and environmental requirements

Frequently Asked Questions (FAQ)

Q: Can the SDM40E20LS-7-F be used as a direct replacement without circuit modification?

A: Yes. Both parts share identical package geometry (SOT-23-3), voltage rating (20V), and diode configuration (1 pair series connection). No circuit redesign is required for PCB-level substitution.

Q: What is the current handling difference between these parts?

A: The HSMS-2812-TR2G is rated at 1A maximum, while the SDM40E20LS-7-F is rated at 400mA per diode in the series pair configuration. For applications operating below 400mA, the substitute is fully compatible. Applications requiring sustained current above 400mA should be evaluated against actual circuit requirements.

Q: Are there any temperature operating range considerations?

A: The original part specifies operation to 150°C junction temperature, while the substitute operates from -65°C to 125°C. For applications requiring junction temperatures above 125°C, thermal analysis of the specific circuit is necessary to confirm suitability.

Q: Why is the HSMS-2812-TR2G obsolete?

A: Broadcom has discontinued this part number. The SDM40E20LS-7-F from Diodes Incorporated provides equivalent electrical and mechanical functionality with active manufacturing support.

Q: Are moisture sensitivity levels equivalent?

A: Yes. Both parts carry MSL 1 (Unlimited) classification, indicating identical moisture handling and storage requirements.

Q: What compliance certifications apply to both parts?

A: Both parts are REACH Unaffected and classified under ECCN EAR99. The substitute additionally meets ROHS3 compliance standards.