HSMS-286P-BLKG Equivalent & Substitute Parts

Part Overview

The HSMS-286P-BLKG is an RF Schottky diode manufactured by Broadcom Limited, configured as a 2-pair series connection with a peak reverse voltage rating of 4V in a 6-TSSOP (SOT-363) package. This component is classified as obsolete, necessitating identification of active substitute parts for new designs and ongoing production requirements. The part operates at a maximum junction temperature of 150°C and exhibits a capacitance of 0.25pF at 0V and 1MHz.

Substiute Parts

HSMS-286P-BLKG

Broadcom LimitedIn Stock: 2038HSMS-286P-BLKG Datasheet

Current PartRFQ

MA4E20541-1279T

MACOM Technology SolutionsIn Stock: 495155MA4E20541-1279T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMS-286P-BLKG is determined by the following critical parameters:

• Diode Configuration: The main part is a 2-pair series Schottky diode. The substitute MA4E20541-1279T is a single Schottky diode, representing a functional reconfiguration for applications where single-diode topology is acceptable.
• Peak Reverse Voltage: The main part is rated at 4V maximum. The substitute is rated at 3V maximum, which is lower and must be verified for circuit compatibility.
• Capacitance Characteristics: The main part exhibits 0.25pF at 0V, 1MHz. The substitute exhibits 0.3pF at 0V, 1MHz, a marginal increase suitable for most RF applications.
• Package Compatibility: Both parts are housed in small-outline packages (SOT-363 for main part, SC-79/SOD-523 for substitute), enabling board-level integration in space-constrained designs.
• Product Status: The main part is obsolete; the substitute is active with high inventory availability (495,050 pcs).

Parameter Comparison

Engineering Selection Recommendations

The MA4E20541-1279T serves as an active substitute for the obsolete HSMS-286P-BLKG based on the following criteria:

• Product Status Alignment: The substitute is classified as active with substantial inventory availability, ensuring long-term supply chain continuity.
• Regulatory Compliance: Both parts share identical ECCN (EAR99) and HTSUS (8541.10.0080) classifications, maintaining export and tariff compliance.
• Moisture Sensitivity: Both parts carry MSL 1 (Unlimited) rating, indicating equivalent handling and storage requirements.
• Voltage Derating Consideration: The substitute's 3V peak reverse voltage rating is lower than the main part's 4V rating. Circuit designs must verify that operating voltages remain within the 3V maximum specification.
• Configuration Change: The transition from a 2-pair series configuration to a single diode requires circuit topology evaluation to ensure functional equivalence in the target application.

Frequently Asked Questions (FAQ)

Q: Can MA4E20541-1279T directly replace HSMS-286P-BLKG without circuit modification?

A: Direct replacement depends on circuit topology. The main part is a 2-pair series Schottky diode, while the substitute is a single Schottky diode. If the original design requires series-pair functionality, circuit reconfiguration is necessary. Additionally, the substitute's 3V peak reverse voltage rating must be verified against circuit operating conditions.

Q: What is the impact of the capacitance difference between the two parts?

A: The main part exhibits 0.25pF at 0V, 1MHz, while the substitute exhibits 0.3pF at 0V, 1MHz. This 0.05pF increase is marginal for most RF applications and typically does not affect circuit performance in standard RF switching and detection circuits.

Q: Are the package dimensions compatible?

A: The main part uses SOT-363 (6-TSSOP) packaging, while the substitute uses SC-79 (SOD-523) packaging. Both are small-outline packages, but physical dimensions differ. PCB layout and footprint modifications are required for substitution.

Q: What are the operating temperature differences?

A: The main part operates up to 150°C junction temperature, while the substitute operates within -65°C to 125°C. The substitute has a lower maximum operating temperature. Applications requiring operation above 125°C are not suitable for this substitute.

Q: Is the substitute suitable for high-frequency RF applications?

A: Both parts are RF Schottky diodes with low capacitance values suitable for RF applications. The substitute's 0.3pF capacitance at 0V, 1MHz is appropriate for RF switching and detection circuits within the specified voltage and current ratings.

Q: What inventory considerations apply to this substitution?

A: The main part (HSMS-286P-BLKG) is obsolete with limited availability. The substitute (MA4E20541-1279T) is active with 495,050 pcs in stock, providing reliable long-term supply for production and design transitions.