HSMP-381C-TR1G Equivalent & Substitute Parts

Part Overview

The HSMP-381C-TR1G is an RF Diode PIN in a 1 Pair Series Connection configuration manufactured by Broadcom Limited. This component is rated for 100V peak reverse voltage with a maximum current of 1 A and operates at a junction temperature of 150°C. The part is currently obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

HSMP-381C-TR1G

Broadcom LimitedIn Stock: 1487HSMP-381C-TR1G Datasheet

Current PartRFQ

MADP-007167-0287FT

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

MFR RecommendedRFQ

RN779FFHT106

Rohm SemiconductorIn Stock: 4199RN779FFHT106 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMP-381C-TR1G is determined by the following critical parameters:

• Diode Type: PIN - 1 Pair Series Connection configuration must be maintained
• Voltage Rating: Peak reverse voltage must meet or exceed 100V
• Current Capacity: Maximum current must support 1 A operation
• Package Compatibility: Physical form factor must be compatible with existing PCB layouts
• Operating Temperature: Junction temperature rating must support 150°C minimum

The identified substitute parts meet these core electrical and mechanical requirements while accounting for the obsolete status of the original component.

Parameter Comparison

Engineering Selection Recommendations

MADP-007167-0287FT is an active component from MACOM Technology Solutions suitable for applications requiring higher voltage margins. This part provides 200V peak reverse voltage capability, exceeding the original 100V specification. However, the maximum current rating of 150 mA is reduced compared to the original 1 A specification. This substitute is appropriate for circuits where voltage headroom is prioritized and current requirements do not exceed 150 mA. The part is currently in active production status with unlimited moisture sensitivity classification.

RN779FFHT106 from Rohm Semiconductor is an active component qualified to AEC-Q101 automotive standards. This part maintains the same SC-70/SOT-323 package footprint as the original component and operates at the same 150°C junction temperature. However, the peak reverse voltage rating is 50V and maximum current is 50 mA, both significantly reduced from the original specifications. This substitute is suitable only for applications with reduced voltage and current requirements. The part carries ROHS3 compliance and is in active production.

Selection between these substitutes depends on specific circuit voltage and current requirements. Direct pin-for-pin replacement with identical electrical performance is not available among active components.

Frequently Asked Questions (FAQ)

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

A: No. While MADP-007167-0287FT maintains the PIN diode configuration and provides higher voltage rating (200V vs 100V), the maximum current is reduced to 150 mA from 1 A. Substitution is valid only for circuits operating below 150 mA. Additionally, the package changes from SOT-323 to SOT-23-3, requiring PCB layout modification.

Q: Is RN779FFHT106 suitable for high-current applications?

A: No. RN779FFHT106 is rated for maximum 50 mA current, making it unsuitable for applications requiring the original 1 A capability. This part is appropriate only for low-current RF switching applications.

Q: What are the package compatibility considerations?

A: HSMP-381C-TR1G uses SC-70/SOT-323 packaging. RN779FFHT106 maintains this same package, allowing direct PCB footprint compatibility. MADP-007167-0287FT uses SOT-23-3 packaging, which differs physically and requires PCB redesign.

Q: Are both substitute parts in active production?

A: Yes. Both MADP-007167-0287FT and RN779FFHT106 are active components with unlimited moisture sensitivity classification, ensuring long-term availability compared to the obsolete original part.

Q: What compliance certifications apply to these substitutes?

A: MADP-007167-0287FT carries no specified automotive qualification. RN779FFHT106 is qualified to AEC-Q101 automotive standards and is ROHS3 compliant. Selection should consider application-specific compliance requirements.