HSMP-389F-TR1 Equivalent & Substitute Parts

Part Overview

The HSMP-389F-TR1 is an RF PIN diode manufactured by Broadcom Limited, designed for RF switching and attenuation applications. It features a 1 Pair Common Cathode configuration with a peak reverse voltage rating of 100V and maximum current handling of 1A in an SC-70/SOT-323 package. This part is classified as obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

HSMP-389F-TR1

Broadcom LimitedIn Stock: 17177HSMP-389F-TR1 Datasheet

Current PartRFQ

DAN235UT106

Rohm SemiconductorIn Stock: 83296DAN235UT106 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMP-389F-TR1 is determined by the following critical parameters:

• Diode Type: PIN - 1 Pair Common Cathode configuration must be maintained
• Package Compatibility: SC-70/SOT-323 physical form factor
• Voltage Rating: Peak reverse voltage must meet or exceed 100V for direct replacement
• Current Handling: Maximum current rating must support 1A operation
• Frequency Performance: Capacitance and resistance characteristics at RF frequencies (1MHz, 100MHz)
• Operating Temperature Range: Must support 150°C junction temperature or higher

The DAN235UT106 is identified as a manufacturer-recommended substitute. However, this part operates at a reduced peak reverse voltage of 35V, which is below the original specification of 100V. This substitution is valid only for applications where the actual operating voltage does not exceed 35V, despite the original design specification of 100V.

Parameter Comparison

Engineering Selection Recommendations

The DAN235UT106 is an active product from Rohm Semiconductor and offers ROHS3 compliance, addressing regulatory requirements that the obsolete HSMP-389F-TR1 does not meet. However, the following considerations apply:

Voltage Derating: The DAN235UT106 has a maximum peak reverse voltage of 35V compared to the original 100V specification. This part is suitable only for applications where the actual reverse voltage stress remains below 35V.

Operating Temperature: The DAN235UT106 supports a maximum junction temperature of 125°C, which is 25°C lower than the HSMP-389F-TR1 specification of 150°C. Thermal design must account for this reduced margin.

RF Characteristics: The DAN235UT106 exhibits higher capacitance (1.2pF vs. 0.3pF at comparable conditions) and lower resistance (900mOhm vs. 2.5Ohm), which may affect circuit performance in high-frequency applications.

Compliance: The DAN235UT106 meets ROHS3 requirements, making it suitable for applications subject to RoHS regulations.

Frequently Asked Questions (FAQ)

Q: Can the DAN235UT106 directly replace the HSMP-389F-TR1 in all applications?

A: No. The DAN235UT106 has a maximum peak reverse voltage of 35V, which is significantly lower than the HSMP-389F-TR1 specification of 100V. Direct replacement is only valid for applications where the actual reverse voltage does not exceed 35V.

Q: Are the packages physically compatible?

A: Yes. Both parts use the SC-70/SOT-323 package, ensuring mechanical and pin compatibility.

Q: What are the RF performance differences?

A: The DAN235UT106 has higher capacitance (1.2pF vs. 0.3pF) and lower resistance (900mOhm vs. 2.5Ohm) at comparable measurement conditions. These differences may impact impedance matching and insertion loss in RF circuits.

Q: Does the DAN235UT106 meet modern compliance standards?

A: Yes. The DAN235UT106 is ROHS3 compliant and REACH unaffected, addressing current regulatory requirements. The original HSMP-389F-TR1 is RoHS non-compliant.

Q: What is the temperature operating range difference?

A: The HSMP-389F-TR1 supports junction temperatures up to 150°C, while the DAN235UT106 is rated to 125°C. Applications requiring operation near 150°C may require thermal redesign.

Q: Is the DAN235UT106 currently available?

A: Yes. The DAN235UT106 is classified as an active product with 83,200 pieces in stock, ensuring supply continuity compared to the obsolete HSMP-389F-TR1.