HSMP-381F-TR1G Equivalent & Substitute Parts

Part Overview

The HSMP-381F-TR1G is an RF PIN diode manufactured by Broadcom Limited, designed for high-frequency switching and attenuation applications. This component features a 1-pair common cathode configuration with a peak reverse voltage rating of 100V and maximum current handling of 1A in a compact SOT-323 package.

The HSMP-381F-TR1G is classified as obsolete. Identifying suitable substitute components is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production requirements for applications utilizing this diode topology.

Substiute Parts

HSMP-381F-TR1G

Broadcom LimitedIn Stock: 4946HSMP-381F-TR1G Datasheet

Current PartRFQ

MADP-007167-0287FT

MACOM Technology SolutionsIn Stock: 3492MADP-007167-0287FT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for PIN diode components is determined by the following critical parameters:

• Diode Configuration: PIN topology and pair arrangement (common cathode vs. series connection)
• Voltage Rating: Peak reverse voltage must meet or exceed application requirements
• Current Capacity: Maximum forward current must support circuit operating conditions
• Frequency Response: Capacitance and resistance characteristics at specified bias conditions
• Thermal Performance: Operating temperature range and power dissipation capability
• Package Compatibility: Physical form factor and pin configuration

The MADP-007167-0287FT from MACOM Technology Solutions is identified as a substitute option. While this component operates at higher voltage (200V) and temperature (175°C) ratings, it features reduced current capacity (150mA vs. 1A) and different diode configuration (series connection vs. common cathode). These parameter variations require circuit-level evaluation to confirm functional equivalence in specific applications.

Parameter Comparison

Engineering Selection Recommendations

The MADP-007167-0287FT is an active product from an established RF component manufacturer, providing supply chain continuity for applications requiring PIN diode functionality. The substitute component offers enhanced voltage rating (200V vs. 100V) and extended operating temperature range (175°C vs. 150°C), supporting broader application margins.

However, the reduced current capacity (150mA vs. 1A) and modified diode configuration (series connection vs. common cathode) represent functional differences that must be evaluated against specific circuit requirements. The package transition from SOT-323 to SOT-23-3 requires PCB layout verification for mechanical and electrical compatibility.

Selection of this substitute is appropriate for applications where current requirements do not exceed 150mA and where the series-connected diode configuration is functionally compatible with the circuit topology.

Frequently Asked Questions (FAQ)

Q: Can the MADP-007167-0287FT directly replace the HSMP-381F-TR1G in all applications?

A: No. While both are PIN diodes, the MADP-007167-0287FT features a series-connected pair configuration versus the common cathode configuration of the HSMP-381F-TR1G. Circuit topology compatibility must be verified. Additionally, the reduced current rating (150mA vs. 1A) limits applicability to lower-current switching applications.

Q: What are the package differences between these components?

A: The HSMP-381F-TR1G uses SOT-323 (SC-70) packaging, while the MADP-007167-0287FT uses SOT-23-3 (SC-59, TO-236-3) packaging. Both are surface-mount packages, but pin pitch and footprint dimensions differ. PCB redesign may be required.

Q: Does the higher voltage rating of the MADP-007167-0287FT provide better performance?

A: Higher voltage rating (200V vs. 100V) provides increased design margin for overvoltage conditions but does not inherently improve performance. Selection should be based on actual circuit voltage requirements and current demands.

Q: Are both components RoHS and REACH compliant?

A: The HSMP-381F-TR1G is REACH Unaffected. The MADP-007167-0287FT is specified as lead-free. Compliance verification with specific regulatory requirements for your application is necessary.

Q: What is the impact of the resistance difference between these diodes?

A: The MADP-007167-0287FT exhibits higher resistance (10Ohm @ 10mA vs. 3Ohm @ 100mA). This affects switching speed and insertion loss characteristics. Applications sensitive to these parameters require detailed performance analysis.