AFT05MS003NT1 Equivalent & Substitute Parts

Part Overview

The AFT05MS003NT1 is an RF MOSFET LDMOS transistor manufactured by NXP USA Inc., designed for RF applications operating at 520 MHz with 3W output power and 20.8 dB gain. The device is packaged in SOT-89A (TO-243AA) surface mount configuration and operates at 7.5V test voltage with 100 mA test current.

This part is classified as Obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this RF MOSFET technology.

Substiute Parts

AFT05MS003NT1

NXP USA Inc.In Stock: 1483AFT05MS003NT1 Datasheet

Current PartRFQ

AFT05MS004NT1

NXP USA Inc.In Stock: 30378AFT05MS004NT1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for RF MOSFET LDMOS transistors is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Manufacturer: NXP USA Inc.
• Technology: LDMOS
• Frequency: 520 MHz
• Voltage - Test: 7.5 V
• Voltage - Rated: 30 V
• Current - Test: 100 mA
• Package / Case: TO-243AA
• Supplier Device Package: SOT-89A
• Mounting Type: Surface Mount

Allowable Variation Parameters:

• Power - Output: Substitute must equal or exceed the main part specification
• Gain: Substitute must equal or exceed the main part specification

The AFT05MS004NT1 meets all mandatory matching criteria and demonstrates improved performance characteristics in power output and gain, qualifying it as a direct substitute for the obsolete AFT05MS003NT1.

Parameter Comparison

Engineering Selection Recommendations

The AFT05MS004NT1 is the qualified substitute for the obsolete AFT05MS003NT1. Selection is based on the following engineering criteria:

Product Status Alignment: The AFT05MS004NT1 carries Active product status, ensuring continued manufacturer support, availability, and compliance with current industry standards. The AFT05MS003NT1 is classified as Obsolete, making long-term supply and support unavailable.

Compliance & Certification: Both parts maintain identical RoHS3 compliance and MSL 1 (Unlimited) ratings, ensuring equivalent environmental and moisture handling requirements. Both parts are REACH Unaffected and carry EAR99 ECCN classification.

Electrical & Mechanical Compatibility: The AFT05MS004NT1 maintains identical test voltage (7.5V), rated voltage (30V), test current (100 mA), and frequency (520 MHz) specifications. The substitute demonstrates enhanced performance with 4.9W output power versus 3.0W and 20.9 dB gain versus 20.8 dB, providing design margin without requiring circuit modification.

Package & Mounting Equivalence: Both parts utilize identical TO-243AA package and SOT-89A supplier device package in surface mount configuration, ensuring PCB layout and assembly process compatibility.

Frequently Asked Questions (FAQ)

Q: Can AFT05MS004NT1 be used as a direct replacement for AFT05MS003NT1 without circuit modification?

A: Yes. The AFT05MS004NT1 maintains identical electrical specifications for voltage, frequency, and current parameters. The increased power output (4.9W vs. 3.0W) and marginally higher gain (20.9 dB vs. 20.8 dB) represent performance improvements that do not require circuit redesign. Package and mounting configurations are identical.

Q: What is the primary reason for substitution?

A: The AFT05MS003NT1 is classified as Obsolete. The AFT05MS004NT1 is an Active product from the same manufacturer with identical core specifications and enhanced performance characteristics, ensuring supply chain continuity and long-term design support.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts maintain identical RoHS3 compliance, MSL 1 (Unlimited) rating, REACH Unaffected status, and EAR99 ECCN classification. No compliance-related design changes are required.

Q: How do the performance differences affect circuit operation?

A: The AFT05MS004NT1 provides 63% higher output power (4.9W vs. 3.0W) and 0.1 dB higher gain. These improvements represent enhanced performance margins and do not introduce incompatibility. Existing circuit designs will operate within specification with the substitute part.

Q: Are the package dimensions and pin configurations identical?

A: Yes. Both parts use TO-243AA package and SOT-89A supplier device package in surface mount configuration. PCB footprints, pin assignments, and assembly processes are identical.