HSMP-4890-BLKG Equivalent & Substitute Parts

Part Overview

The HSMP-4890-BLKG 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 100V with a maximum current rating of 1A in a compact SOT-23-3 package. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

HSMP-4890-BLKG

Broadcom LimitedIn Stock: 4393HSMP-4890-BLKG Datasheet

Current PartRFQ

CLA4611-085LF

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CLA4611-085LF from Skyworks Solutions Inc. qualifies as a functional substitute based on the following substitution criteria:

Functional Compatibility Parameters:

• Diode Type: Both are PIN - Single diodes
• Voltage Rating: CLA4611-085LF (180V) exceeds the HSMP-4890-BLKG requirement (100V), providing margin for circuit protection
• Current Capacity: CLA4611-085LF (1.5A) exceeds the HSMP-4890-BLKG requirement (1A)
• Capacitance: CLA4611-085LF (0.35pF @ 38V, 1MHz) is comparable to HSMP-4890-BLKG (0.375pF @ 5V, 1MHz)
• Resistance: CLA4611-085LF (1.2Ohm @ 10mA, 500MHz) is lower than HSMP-4890-BLKG (2.5Ohm @ 5mA, 100MHz), indicating improved RF performance

Product Status: CLA4611-085LF is Active, ensuring long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

The CLA4611-085LF is suitable as a substitute for the HSMP-4890-BLKG based on the following factors:

Electrical Performance: The CLA4611-085LF exceeds all critical electrical parameters of the obsolete HSMP-4890-BLKG. Higher voltage and current ratings provide operational margin, while lower resistance and comparable capacitance indicate equivalent or improved RF performance characteristics.

Compliance & Certifications: The CLA4611-085LF is ROHS3 compliant and carries an improved moisture sensitivity level (MSL 1 vs. MSL 2A), reducing handling and storage constraints during manufacturing.

Product Status & Availability: The CLA4611-085LF is in Active production status, ensuring long-term supply chain stability and technical support from Skyworks Solutions Inc.

Package Consideration: The CLA4611-085LF uses a 2-VDFN Exposed Pad package, which differs from the SOT-23-3 package of the original part. PCB layout and footprint modifications are required for implementation.

Frequently Asked Questions (FAQ)

Q: Can the CLA4611-085LF directly replace the HSMP-4890-BLKG without circuit modifications?

A: Electrical substitution is feasible due to superior voltage and current ratings. However, package differences (2-VDFN vs. SOT-23-3) require PCB footprint redesign and layout adjustments.

Q: What are the key electrical parameters that determine substitution compatibility?

A: PIN diode substitution is determined by diode type (both PIN - Single), voltage rating (CLA4611-085LF 180V exceeds 100V requirement), current capacity (CLA4611-085LF 1.5A exceeds 1A requirement), and RF characteristics (capacitance and resistance at specified frequencies).

Q: Does the CLA4611-085LF offer performance improvements over the HSMP-4890-BLKG?

A: The CLA4611-085LF demonstrates lower on-resistance (1.2Ohm vs. 2.5Ohm) and operates at higher frequencies (500MHz vs. 100MHz measurement point), indicating improved RF switching performance. Higher operating temperature (175°C vs. 150°C) provides additional thermal margin.

Q: What are the moisture sensitivity implications of substitution?

A: The CLA4611-085LF has MSL 1 (Unlimited) compared to the HSMP-4890-BLKG MSL 2A (4 Weeks), reducing moisture-related handling and storage requirements during manufacturing and assembly.

Q: Are there compliance differences between the two parts?

A: The CLA4611-085LF is ROHS3 compliant. Both parts are REACH Unaffected and carry EAR99 ECCN classification.