HSMP-4820-TR2G Equivalent & Substitute Parts

Part Overview

The HSMP-4820-TR2G is an RF PIN diode manufactured by Broadcom Limited, designed for RF switching and attenuation applications. This single PIN diode operates at a peak reverse voltage of 50V with a maximum current rating of 1A in a SOT-23-3 surface mount package. The product is currently obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and production continuity.

Substiute Parts

HSMP-4820-TR2G

Broadcom LimitedIn Stock: 1056HSMP-4820-TR2G Datasheet

Current PartRFQ

CLA4605-085LF

Skyworks Solutions Inc.In Stock: 6611CLA4605-085LF Datasheet

MFR RecommendedRFQ

CLA4608-085LF

Skyworks Solutions Inc.In Stock: 16626CLA4608-085LF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMP-4820-TR2G is determined by the following electrical and mechanical criteria:

Primary Substitution Parameters:

• Diode Type: PIN - Single (required match)
• Voltage - Peak Reverse (Max): Must equal or exceed 50V
• Current - Max: Must equal or exceed 1A
• Operating Temperature: Must support 150°C or higher
• Package compatibility: Physical form factor and pin configuration

Secondary Compatibility Parameters:

• Capacitance and resistance characteristics within acceptable operating ranges
• Compliance certifications (REACH, RoHS status)
• Moisture sensitivity level

Both substitute parts (CLA4605-085LF and CLA4608-085LF) meet or exceed the electrical requirements of the HSMP-4820-TR2G. However, package form factor differs, requiring circuit board layout evaluation.

Parameter Comparison

Engineering Selection Recommendations

Both CLA4605-085LF and CLA4608-085LF are active production parts from Skyworks Solutions Inc. and meet the minimum electrical requirements for substitution. Selection between these alternatives depends on application voltage requirements:

CLA4605-085LF provides 60V peak reverse voltage rating with 1.5A maximum current. This part exceeds the HSMP-4820-TR2G voltage specification by 10V and current specification by 0.5A, suitable for applications operating within the original 50V design envelope.

CLA4608-085LF provides 180V peak reverse voltage rating with 1.5A maximum current. This part is appropriate for applications requiring higher voltage headroom or operating in elevated voltage environments.

Both substitute parts feature ROHS3 compliance and unlimited moisture sensitivity rating, matching the environmental specifications of the original part. Operating temperature ratings of 175°C exceed the original 150°C specification, providing improved thermal margin.

Package transition from SOT-23-3 to 3-QFN (2x2) requires circuit board layout modification and thermal management evaluation due to the exposed pad design of the QFN package.

Frequently Asked Questions (FAQ)

Q: Can CLA4605-085LF or CLA4608-085LF be used as direct pin-for-pin replacements for HSMP-4820-TR2G?

A: No. While both substitute parts are functionally equivalent PIN diodes, the package form factor differs. HSMP-4820-TR2G uses SOT-23-3 (three leads), while both substitutes use 3-QFN (2x2) with an exposed pad. Circuit board layout and footprint redesign is required.

Q: What is the primary difference between CLA4605-085LF and CLA4608-085LF?

A: The primary difference is voltage rating. CLA4605-085LF is rated for 60V peak reverse voltage, while CLA4608-085LF is rated for 180V. Both provide 1.5A maximum current. Selection depends on the application's voltage operating range.

Q: Are both substitute parts suitable for RF switching applications?

A: Yes. Both CLA4605-085LF and CLA4608-085LF are PIN diodes designed for RF switching and attenuation. Electrical characteristics (capacitance and resistance) are within acceptable ranges for RF circuit operation, though measured at different bias points and frequencies than the original part.

Q: What compliance certifications apply to the substitute parts?

A: Both CLA4605-085LF and CLA4608-085LF are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is 1 (unlimited) for both parts, matching the original specification.

Q: Does the QFN package offer any advantages over the original SOT-23-3 package?

A: The 3-QFN (2x2) package includes an exposed pad for improved thermal dissipation. Both substitute parts are rated for 1W (CLA4605-085LF) or 2W (CLA4608-085LF) power dissipation, compared to the original part specification. This provides enhanced thermal performance in high-power RF applications.