PD84008L-E RF MOSFET LDMOS Equivalent & Substitute Parts

Part Overview

The PD84008L-E is an RF MOSFET LDMOS device manufactured by STMicroelectronics, designed for RF power amplification applications at 870MHz with 2W output power and 15.5dB gain. The device is packaged in a PowerFLAT™ (5x5) form factor with 8-pin PowerVDFN configuration.

This part is classified as Obsolete in the current product lifecycle. Identification of equivalent and substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications requiring RF MOSFET functionality in the specified frequency and power range.

Substiute Parts

PD84008L-E

STMicroelectronicsIn Stock: 17430PD84008L-E Datasheet

Current PartRFQ

PD54008L-E

STMicroelectronicsIn Stock: 22010PD54008L-E Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PD84008L-E is determined by the following critical parameters:

Mechanical Compatibility:

• Package type: 8-PowerVDFN
• Supplier device package: PowerFLAT™ (5x5)
• Pin count and footprint must match for direct PCB compatibility

Electrical Compatibility:

• Technology: LDMOS (Laterally Diffused Metal-Oxide-Semiconductor)
• Voltage - Test: 7.5V
• Voltage - Rated: 25V
• Current Rating: 7A maximum
• Frequency operation range
• Power output capability
• Gain characteristics

Regulatory & Compliance:

• RoHS3 Compliance
• REACH Unaffected status
• Moisture Sensitivity Level: 3 (168 Hours)

The substitute part PD54008L-E shares identical mechanical packaging, voltage ratings, and regulatory compliance status. Electrical parameters differ in frequency response, output power, and current test specifications, which must be evaluated against application requirements.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The PD84008L-E is classified as Obsolete, while the substitute part PD54008L-E maintains Active product status. Active status indicates ongoing manufacturer support, availability, and compliance maintenance.

Compliance & Regulatory Alignment: Both parts maintain identical RoHS3 compliance and REACH Unaffected status, ensuring regulatory equivalence for applications subject to these standards. Moisture Sensitivity Level (MSL) ratings are identical at Level 3 (168 Hours), indicating equivalent handling and storage requirements.

Mechanical Compatibility: Both parts utilize the 8-PowerVDFN package with PowerFLAT™ (5x5) form factor, enabling direct PCB footprint compatibility without layout modifications.

Electrical Parameter Differences: The substitute part PD54008L-E operates at a lower frequency (500MHz versus 870MHz) and delivers higher output power (8W versus 2W). Current rating is reduced from 7A to 5A. These differences require application-specific evaluation to determine suitability for the intended RF amplification circuit.

Frequently Asked Questions (FAQ)

Q: Can PD54008L-E be used as a direct replacement for PD84008L-E in existing PCB designs?

A: Mechanical compatibility is confirmed through identical 8-PowerVDFN packaging and PowerFLAT™ (5x5) form factor. Electrical compatibility depends on application frequency requirements and power output specifications. The substitute operates at 500MHz (versus 870MHz) with 8W output (versus 2W). PCB layout modifications are not required, but circuit performance must be evaluated against design specifications.

Q: What are the key differences between these two LDMOS devices?

A: The primary differences are frequency response (870MHz main part versus 500MHz substitute), output power (2W versus 8W), current rating (7A versus 5A), and current test specification (250mA versus 200mA). Gain characteristics differ slightly (15.5dB versus 15dB). Voltage ratings, package type, and compliance certifications are identical.

Q: Are both parts compliant with RoHS3 and REACH regulations?

A: Yes. Both PD84008L-E and PD54008L-E are ROHS3 Compliant and REACH Unaffected, ensuring regulatory equivalence for applications subject to these standards.

Q: What is the significance of the Obsolete status for PD84008L-E?

A: Obsolete status indicates the part is no longer in active production. The substitute part PD54008L-E maintains Active status, ensuring ongoing availability, manufacturer support, and compliance maintenance. For new designs or long-term procurement, the Active substitute is the appropriate selection.

Q: Are the moisture sensitivity requirements the same for both parts?

A: Yes. Both parts are rated at Moisture Sensitivity Level 3 (168 Hours), indicating identical handling, storage, and reflow requirements.

Q: What packaging options are available for the substitute part?

A: The PD54008L-E is available in Cut Tape (CT) and Digi-Reel® packaging formats, providing flexibility for different procurement and assembly workflows.