HSMS-285P-TR1G Equivalent & Substitute Parts

Part Overview

The HSMS-285P-TR1G is an RF Schottky diode manufactured by Broadcom Limited, designed for high-frequency applications requiring low forward voltage drop and fast switching characteristics. This component features a 2-pair series connection configuration with a peak reverse voltage rating of 2V and operates at a maximum junction temperature of 150°C. The part is packaged in a 6-TSSOP (SOT-363) form factor.

The HSMS-285P-TR1G is classified as obsolete. Identifying equivalent substitute parts is essential for design continuity, procurement planning, and ensuring long-term product availability for applications currently utilizing this component.

Substiute Parts

HSMS-285P-TR1G

Broadcom LimitedIn Stock: 1118HSMS-285P-TR1G Datasheet

Current PartRFQ

SBX201C-TB-E

onsemiIn Stock: 2125SBX201C-TB-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMS-285P-TR1G is determined by the following critical parameters:

• Diode Type: Schottky configuration with series connection topology
• Voltage Rating: Peak reverse voltage of 2V
• Capacitance Characteristics: Junction capacitance in the 0.28–0.3pF range at specified bias conditions
• Operating Temperature: Maximum junction temperature of 150°C
• Package Compatibility: SOT-363 or equivalent compact surface-mount packages

The substitute part SBX201C-TB-E meets these criteria with the following considerations: it operates at the same 2V peak reverse voltage, maintains comparable junction capacitance (0.28pF @ 0V, 1MHz), and supports the same maximum operating temperature. The primary difference is the diode configuration: SBX201C-TB-E uses a 1-pair series connection versus the 2-pair configuration of the original part. This configuration difference affects the electrical behavior in specific circuit topologies and must be evaluated against the application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the HSMS-285P-TR1G and SBX201C-TB-E are classified as obsolete products. Selection between these parts must be based on application-specific requirements and circuit topology compatibility.

The HSMS-285P-TR1G features a 2-pair series connection configuration in a 6-TSSOP package. The SBX201C-TB-E provides a 1-pair series connection in a smaller SOT-23-3 package with documented ROHS3 compliance. The difference in diode pair configuration directly affects impedance characteristics and frequency response in RF applications.

For applications where the original 2-pair series configuration is functionally required, the SBX201C-TB-E may not provide electrical equivalence despite matching voltage and temperature ratings. For applications where a 1-pair configuration is acceptable, the SBX201C-TB-E offers improved regulatory compliance documentation and current handling capability (50 mA maximum).

Package footprint differences (SOT-363 versus SOT-23-3) require PCB layout evaluation and may necessitate design modifications.

Frequently Asked Questions (FAQ)

Q: Can SBX201C-TB-E directly replace HSMS-285P-TR1G in all applications?

A: Direct replacement depends on circuit topology. The primary difference is the diode pair configuration: HSMS-285P-TR1G uses 2-pair series connection while SBX201C-TB-E uses 1-pair series connection. This affects impedance and frequency response characteristics. Electrical simulation or bench testing is necessary to confirm functional equivalence for specific applications.

Q: What is the significance of the diode pair configuration difference?

A: The number of series-connected diode pairs affects the overall junction capacitance, forward voltage characteristics, and high-frequency behavior. A 2-pair configuration provides different impedance matching properties compared to a 1-pair configuration. Application requirements determine whether this difference is acceptable.

Q: Are there package compatibility considerations?

A: Yes. HSMS-285P-TR1G uses a 6-TSSOP (SOT-363) package while SBX201C-TB-E uses a TO-236-3 (SOT-23-3) package. These packages have different footprints and pin configurations. PCB layout modifications are required for substitution.

Q: What is the current handling capability difference?

A: SBX201C-TB-E specifies a maximum current rating of 50 mA. The HSMS-285P-TR1G does not provide a specified maximum current rating in the available data. Applications requiring current handling verification should reference complete manufacturer datasheets.

Q: Do both parts meet the same environmental and compliance standards?

A: Both parts have MSL rating of 1 (Unlimited) and REACH Unaffected status. SBX201C-TB-E includes documented ROHS3 compliance. For applications with specific regulatory requirements, compliance documentation should be verified with manufacturers.