HSMP-489B-TR1G Equivalent & Substitute Parts

Part Overview

The HSMP-489B-TR1G is an RF Diode PIN - Single manufactured by Broadcom Limited, rated for 100V peak reverse voltage and 1 A maximum current in an SC-70 SOT-323 package. This component is classified as Obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning. The part is REACH Unaffected and carries EAR99 export classification.

Substiute Parts

HSMP-489B-TR1G

Broadcom LimitedIn Stock: 2635HSMP-489B-TR1G Datasheet

Current PartRFQ

CLA4611-085LF

Skyworks Solutions Inc.In Stock: 2240CLA4611-085LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMP-489B-TR1G is determined by the following electrical and mechanical criteria:

Functional Equivalence Requirements:

• Diode Type: PIN - Single (same topology)
• Voltage Rating: Must meet or exceed 100V peak reverse voltage
• Current Rating: Must meet or exceed 1 A maximum current
• Capacitance and Resistance characteristics: Must be compatible with RF circuit performance at specified measurement conditions
• Operating Temperature: Must support minimum 150°C junction temperature operation
• Package compatibility: Physical form factor must accommodate board-level integration

The CLA4611-085LF satisfies these criteria with enhanced electrical performance (180V voltage rating, 1.5 A current rating) and improved thermal characteristics (175°C operating temperature), while maintaining PIN diode single-element topology and RF performance parameters within acceptable ranges for substitution.

Parameter Comparison

Engineering Selection Recommendations

The CLA4611-085LF is an active product with superior electrical ratings and compliance posture compared to the obsolete HSMP-489B-TR1G. The substitute part provides higher voltage headroom (180V vs. 100V), increased current capacity (1.5 A vs. 1 A), and improved thermal operating range (175°C vs. 150°C). Both components carry REACH Unaffected and EAR99 export classifications. The CLA4611-085LF achieves ROHS3 compliance and features unlimited moisture sensitivity rating, compared to the 4-week MSL of the original part. Active product status ensures continued availability and manufacturing support for the CLA4611-085LF.

Frequently Asked Questions (FAQ)

Q: Can the CLA4611-085LF directly replace the HSMP-489B-TR1G in existing designs?

A: The CLA4611-085LF meets all functional requirements of the HSMP-489B-TR1G with enhanced electrical performance. However, package form factor differences (2-VDFN Exposed Pad vs. SC-70 SOT-323) require PCB layout modification. Electrical performance is compatible for RF PIN diode applications within the original design specifications.

Q: What are the key electrical differences between these parts?

A: The CLA4611-085LF provides higher voltage rating (180V vs. 100V), greater current capacity (1.5 A vs. 1 A), lower series resistance (1.2Ohm vs. 2.5Ohm), and specified power dissipation rating (2 W). These parameters represent performance enhancements suitable for higher-power RF applications.

Q: Are there packaging considerations for substitution?

A: Yes. The HSMP-489B-TR1G uses SC-70 SOT-323 packaging, while the CLA4611-085LF uses 3-QFN (2x2) packaging. Physical dimensions and pin configurations differ, requiring PCB redesign for mechanical compatibility.

Q: What is the compliance status of the substitute part?

A: The CLA4611-085LF is ROHS3 compliant with unlimited moisture sensitivity rating, compared to the original part's 2A MSL (4 weeks). Both parts are REACH Unaffected and carry EAR99 export classification.

Q: Why is the original part listed as Obsolete?

A: The HSMP-489B-TR1G is classified as Obsolete by Broadcom Limited, indicating discontinued manufacturing and end-of-life status. The CLA4611-085LF is an active product with ongoing manufacturing support.