PD54008S-E RF MOSFET LDMOS Equivalent & Substitute Parts

Part Overview

The PD54008S-E is an RF MOSFET LDMOS transistor manufactured by STMicroelectronics, designed for RF power amplification applications operating at 500 MHz. This device is rated for 7.5 V test voltage with 8 W output power and 11.5 dB gain. The part is currently classified as obsolete, which necessitates identification of functionally equivalent alternatives for ongoing design support and procurement requirements. The PD54008S-E is packaged in PowerSO-10 with exposed bottom pad configuration and maintains ROHS3 compliance with MSL 3 moisture sensitivity rating.

Substiute Parts

PD54008S-E

STMicroelectronicsIn Stock: 832PD54008S-E Datasheet

Current PartRFQ

PD54008-E

STMicroelectronicsIn Stock: 1118PD54008-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PD54008S-E is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Technology: LDMOS
• Frequency: 500 MHz
• Voltage - Test: 7.5 V
• Voltage - Rated: 25 V
• Current Rating: 5 A
• Current - Test: 150 mA
• Power - Output: 8 W
• Gain: 11.5 dB

Mechanical Parameters (Must Match):

• Package / Case: PowerSO-10 Exposed Bottom Pad

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• MSL Rating: 3 (168 Hours)

The PD54008-E qualifies as a direct substitute based on identical electrical and mechanical specifications. The primary distinction between the main part and substitute is product status (obsolete versus active) and packaging format (PowerSO-10RF with straight lead versus 10-PowerSO tube packaging).

Parameter Comparison

Engineering Selection Recommendations

The PD54008-E is a direct functional equivalent to the PD54008S-E for RF MOSFET LDMOS applications. Selection of the PD54008-E is supported by the following factors:

Product Status: The PD54008-E maintains active product status with STMicroelectronics, ensuring continued availability and manufacturing support. The PD54008S-E is classified as obsolete, making the PD54008-E the appropriate selection for new designs and ongoing procurement.

Electrical Equivalence: All electrical parameters are identical across both parts, including frequency response (500 MHz), power output (8 W), gain (11.5 dB), and voltage ratings (7.5 V test, 25 V rated).

Compliance Certification: Both parts maintain ROHS3 compliance and identical MSL 3 moisture sensitivity ratings, ensuring compatibility with current manufacturing and environmental standards.

Packaging Consideration: The PD54008-E is supplied in tube packaging format (10-PowerSO), whereas the PD54008S-E uses PowerSO-10RF with straight lead configuration. Both utilize the same PowerSO-10 exposed bottom pad case, ensuring mechanical and thermal compatibility in PCB layouts. Packaging format differences relate to supply and handling only and do not affect electrical performance or board-level integration.

Frequently Asked Questions (FAQ)

Q: Can the PD54008-E be used as a direct replacement for the PD54008S-E in existing designs?

A: Yes. The PD54008-E is electrically and mechanically equivalent to the PD54008S-E. All RF performance parameters, voltage ratings, current ratings, and power output specifications are identical. The PowerSO-10 exposed bottom pad package is the same for both parts, ensuring compatibility with existing PCB layouts and thermal management designs.

Q: What is the difference between PowerSO-10RF (Straight Lead) and 10-PowerSO (Tube) packaging?

A: PowerSO-10RF (Straight Lead) and 10-PowerSO (Tube) refer to the packaging format and supply method, not the physical case style. Both use the PowerSO-10 exposed bottom pad case. The difference is in how the parts are supplied: straight lead format versus tube reel format. The actual component footprint and pin configuration remain identical.

Q: Why is the PD54008S-E classified as obsolete?

A: The PD54008S-E is listed as obsolete by STMicroelectronics. The PD54008-E is the active equivalent part and should be used for all new designs and procurement activities.

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

A: No. Both the PD54008S-E and PD54008-E maintain identical ROHS3 compliance status, REACH unaffected status, and MSL 3 moisture sensitivity ratings. Both parts meet the same environmental and regulatory standards.

Q: What inventory status should be considered when selecting between these parts?

A: The PD54008-E has 1057 pieces in stock with active product status, providing reliable availability for procurement. The PD54008S-E has 763 pieces in stock but is classified as obsolete, indicating limited future availability. For new projects and ongoing supply chain planning, the PD54008-E is the recommended selection.

Q: Are the electrical performance characteristics identical for RF applications?

A: Yes. Both parts operate at 500 MHz with 11.5 dB gain and 8 W output power. Test voltage (7.5 V), rated voltage (25 V), current rating (5 A), and test current (150 mA) are identical. RF performance in 500 MHz applications is equivalent between both parts.