HSMS-282B-TR1G Equivalent & Substitute Parts

Part Overview

The HSMS-282B-TR1G is an RF Schottky diode manufactured by Broadcom Limited, designed for high-frequency applications requiring peak reverse voltage tolerance of 15V and maximum current handling of 1A in a compact SC-70 SOT-323 surface mount package. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives from active product lines to maintain design continuity and ensure supply chain reliability.

Substiute Parts

HSMS-282B-TR1G

Broadcom LimitedIn Stock: 16028HSMS-282B-TR1G Datasheet

Current PartRFQ

MA4E1338A1-1146T

MACOM Technology SolutionsIn Stock: 3405MA4E1338A1-1146T Datasheet

DirectRFQ

1PS70SB82,115

Nexperia USA Inc.In Stock: 42351PS70SB82,115 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMS-282B-TR1G is determined by the following critical parameters:

Package Compatibility: All substitute parts must use SC-70 or SOT-323 surface mount packaging to ensure mechanical and electrical compatibility with existing PCB layouts.

Diode Technology: All candidates must be Schottky diode technology, single configuration, to maintain RF performance characteristics and switching speed requirements.

Voltage Rating: Substitute parts must maintain a peak reverse voltage rating of 15V or higher to ensure safe operation within the original design envelope.

Capacitance Specification: Capacitance at 0V, 1MHz must be 1pF or lower to preserve high-frequency performance and minimize parasitic effects in RF circuits.

Moisture Sensitivity: MSL rating of 1 (Unlimited) ensures compatibility with standard handling and storage procedures.

The substitute parts identified below meet these core substitution criteria while offering active product status and improved supply availability.

Parameter Comparison

Engineering Selection Recommendations

1PS70SB82,115 (Nexperia USA Inc.) is the primary substitute for HSMS-282B-TR1G applications. This part maintains identical peak reverse voltage (15V) and capacitance specifications (1pF @ 0V, 1MHz), ensuring direct functional equivalence. The component is active in production, carries AEC-Q100 automotive qualification, and is RoHS3 compliant, providing superior supply chain stability and regulatory compliance compared to the obsolete original part.

MA4E1338A1-1146T (MACOM Technology Solutions) is a secondary substitute suitable only for applications where maximum current requirements do not exceed 30mA and peak reverse voltage does not exceed 8V. This part is active and available but presents reduced voltage and current ratings compared to the original specification. Selection of this substitute requires design verification to confirm operation within its reduced electrical envelope.

Both substitute parts maintain package compatibility (SOT-323), identical capacitance performance, and MSL-1 moisture sensitivity ratings. The choice between substitutes depends on specific application current and voltage requirements relative to the original design specifications.

Frequently Asked Questions (FAQ)

Q: Can MA4E1338A1-1146T replace HSMS-282B-TR1G in all applications?

A: No. MA4E1338A1-1146T has a maximum peak reverse voltage of 8V and maximum current of 30mA, compared to the original part's 15V and 1A ratings. This substitute is suitable only for applications operating within these reduced electrical limits. Design verification is required.

Q: Why is 1PS70SB82,115 the recommended substitute?

A: 1PS70SB82,115 maintains the original 15V peak reverse voltage and 1pF capacitance specifications, providing direct functional equivalence. It is an active product with AEC-Q100 automotive qualification and RoHS3 compliance, ensuring reliable supply and regulatory compliance.

Q: Are all substitute parts compatible with existing PCB layouts?

A: Yes. All substitute parts use SC-70 SOT-323 surface mount packaging, identical to the original HSMS-282B-TR1G, ensuring mechanical and electrical compatibility with existing PCB designs without layout modifications.

Q: What is the significance of the 1pF capacitance specification?

A: The 1pF capacitance at 0V, 1MHz is a critical RF performance parameter. All substitute parts maintain this specification, preserving high-frequency performance and minimizing parasitic effects in RF circuit applications.

Q: Do the substitute parts have the same moisture sensitivity rating?

A: Yes. Both substitute parts carry MSL-1 (Unlimited) moisture sensitivity ratings, identical to the original part, ensuring compatibility with standard component handling, storage, and assembly procedures.

Q: What compliance certifications apply to the substitute parts?

A: 1PS70SB82,115 carries AEC-Q100 automotive qualification and is RoHS3 compliant. MA4E1338A1-1146T does not list automotive qualification. Both parts are EAR99 export classification and REACH unaffected.