MGA-43628-BLKG Equivalent & Substitute Parts

Part Overview

The MGA-43628-BLKG is an RF Amplifier IC manufactured by Broadcom Limited, designed for general purpose applications in the 2GHz to 2.2GHz frequency band. This surface mount component operates at 5V supply voltage with 440mA current consumption and delivers 41.5dB gain with a P1dB of 36.8dBm at 2.14GHz test frequency. The device is packaged in a 28-QFN (5x5) form factor with MSL 3 moisture sensitivity rating.

The product status is listed as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and production continuity.

Substiute Parts

MGA-43628-BLKG

Broadcom LimitedIn Stock: 100146MGA-43628-BLKG Datasheet

Current PartRFQ

MMZ25333BT1

NXP USA Inc.In Stock: 2159MMZ25333BT1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MGA-43628-BLKG is evaluated based on the following critical parameters:

• Frequency Coverage: The substitute must support the 2GHz to 2.2GHz operating band
• Supply Voltage: 5V operation is required for circuit compatibility
• Gain and P1dB Performance: Output power and gain characteristics must meet or exceed application requirements
• Package Type: Surface mount QFN packages with compatible pin counts and thermal characteristics
• Current Consumption: Supply current must be within acceptable limits for power budget constraints

The MMZ25333BT1 from NXP USA Inc. qualifies as a substitute based on overlapping frequency coverage (1.5GHz ~ 2.7GHz encompasses the 2GHz ~ 2.2GHz band), identical 5V supply voltage, comparable gain performance (42.7dB), and surface mount QFN packaging. The substitute operates at lower current consumption (265mA versus 440mA) and demonstrates superior moisture sensitivity rating (MSL 1 versus MSL 3).

Parameter Comparison

Engineering Selection Recommendations

The MMZ25333BT1 serves as an active substitute for the obsolete MGA-43628-BLKG. Selection criteria are based on the following factors:

Product Status: The MGA-43628-BLKG is obsolete, while the MMZ25333BT1 maintains active product status with confirmed inventory availability (2100 pcs), ensuring long-term supply chain viability.

Compliance and Certifications: The MMZ25333BT1 is ROHS3 compliant, whereas RoHS status for the MGA-43628-BLKG is not specified. Both devices maintain REACH Unaffected status. The MMZ25333BT1 carries ECCN EAR99 classification compared to ECCN 5A991G for the original part.

Electrical Performance: The substitute demonstrates superior gain (42.7dB versus 41.5dB) and reduced current consumption (265mA versus 440mA). The P1dB specification of 32dBm for the MMZ25333BT1 is lower than the 36.8dBm of the original part; this difference must be evaluated against specific application power requirements.

Packaging Considerations: The MMZ25333BT1 uses a 24-pin QFN package versus the 28-pin package of the original device. PCB layout modifications are required to accommodate the different pin count and package dimensions.

Frequently Asked Questions (FAQ)

Q: Can the MMZ25333BT1 directly replace the MGA-43628-BLKG without PCB modifications?

A: No. The MMZ25333BT1 uses a 24-HVQFN (4x4) package while the MGA-43628-BLKG uses a 28-VFQFN (5x5) package. Pin count and footprint differences require PCB layout redesign. Pin function mapping must be verified against both datasheets before implementation.

Q: What is the impact of the lower P1dB specification on the MMZ25333BT1?

A: The MMZ25333BT1 has a P1dB of 32dBm compared to 36.8dBm for the MGA-43628-BLKG. This 4.8dBm difference represents lower output power capability at 1dB compression point. Applications requiring the full 36.8dBm output power cannot use this substitute without performance degradation.

Q: Does the broader frequency range of the MMZ25333BT1 affect operation at 2GHz to 2.2GHz?

A: The MMZ25333BT1 frequency range of 1.5GHz to 2.7GHz fully encompasses the 2GHz to 2.2GHz operating band of the original part. Performance at the specific 2GHz to 2.2GHz band is supported within the substitute's specifications.

Q: What are the moisture sensitivity implications of the MSL rating difference?

A: The MGA-43628-BLKG has MSL 3 (168 hours floor life), while the MMZ25333BT1 has MSL 1 (unlimited floor life). The substitute offers superior moisture tolerance, reducing handling and storage constraints during manufacturing.

Q: Is the reduced current consumption of the MMZ25333BT1 a design advantage?

A: Yes. The MMZ25333BT1 requires 265mA versus 440mA for the original part, representing a 39.8% reduction in supply current. This lower power consumption reduces thermal load and power supply requirements in the application circuit.

Q: Are there supply chain advantages to using the MMZ25333BT1?

A: Yes. The MMZ25333BT1 is an active product with confirmed inventory (2100 pcs), while the MGA-43628-BLKG is obsolete with no guaranteed future availability. The substitute ensures design continuity and production sustainability.