PD57045S-E RF MOSFET LDMOS Equivalent & Substitute Parts

Part Overview

The PD57045S-E is an RF MOSFET LDMOS transistor manufactured by STMicroelectronics, designed for RF power amplification applications at 945 MHz. This device delivers 45W output power with 14.5 dB gain at 28V operation. The part is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The PD57045S-E is packaged in PowerSO-10RF with straight leads and is ROHS3 compliant with MSL 3 moisture sensitivity rating.

Substiute Parts

PD57045S-E

STMicroelectronicsIn Stock: 1125PD57045S-E Datasheet

Current PartRFQ

PD57045-E

STMicroelectronicsIn Stock: 923PD57045-E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PD57045S-E is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match):

• Frequency: 945 MHz
• Test Voltage: 28 V
• Rated Voltage: 65 V
• Current Rating: 5 A
• Test Current: 250 mA
• Output Power: 45 W
• Gain: 14.5 dB
• Technology: LDMOS

Mechanical & Compliance Parameters (Must Match):

• Package Type: PowerSO-10 Exposed Bottom Pad
• RoHS Status: ROHS3 Compliant
• MSL Rating: 3 (168 Hours)
• Base Product Number: PD57045

The substitute part PD57045-E shares identical electrical specifications and compliance certifications. The primary distinction is packaging format (Tube vs. standard packaging) and product status (Active vs. Obsolete), making it a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: PD57045-E

The PD57045-E is a direct functional equivalent to the PD57045S-E. All critical electrical parameters, mechanical specifications, and regulatory compliance certifications are identical. The PD57045-E holds active product status with STMicroelectronics, ensuring ongoing availability and supply chain continuity.

Compliance & Regulatory Alignment: Both parts maintain ROHS3 compliance, identical MSL ratings, and equivalent REACH and ECCN classifications. No regulatory barriers exist for substitution in applications previously qualified on the PD57045S-E.

Packaging Consideration: The PD57045-E is supplied in Tube packaging, whereas the PD57045S-E designation references PowerSO-10RF with straight leads. Both utilize the PowerSO-10 Exposed Bottom Pad case style. Verify packaging format compatibility with assembly and handling equipment before procurement.

Inventory & Availability: The PD57045-E maintains 843 units in current stock, providing immediate availability for production and design transitions from the obsolete PD57045S-E.

Frequently Asked Questions (FAQ)

Q: Can PD57045-E directly replace PD57045S-E in existing circuit designs?

A: Yes. The PD57045-E is electrically and mechanically equivalent across all specified parameters: 945 MHz frequency, 28V test voltage, 45W output power, 14.5 dB gain, and PowerSO-10 package. No circuit modifications are required.

Q: What is the difference between PD57045S-E and PD57045-E?

A: The primary differences are product status and packaging format. PD57045S-E is obsolete with PowerSO-10RF straight lead designation; PD57045-E is active with standard 10-PowerSO tube packaging. Electrical specifications and compliance certifications are identical.

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

A: No. Both parts are ROHS3 compliant, carry identical MSL 3 ratings, maintain REACH Unaffected status, and share the same ECCN (EAR99) and HTSUS classifications.

Q: What is the moisture sensitivity level, and how does it affect handling?

A: Both parts carry MSL 3 rating with 168-hour floor life. Components must be stored in controlled humidity environments and baked according to IPC-A-610 standards prior to reflow soldering if floor life is exceeded.

Q: Is the PowerSO-10 package compatible with existing PCB layouts designed for PD57045S-E?

A: Yes. Both parts use the PowerSO-10 Exposed Bottom Pad case style. Verify that your PCB footprint accommodates the specific lead configuration (straight vs. standard) of the selected variant to ensure proper assembly.

Q: What is the current availability of PD57045-E?

A: PD57045-E maintains 843 units in current stock as an active product. PD57045S-E is obsolete with 1110 units remaining in inventory.

Q: Can I use PD57045-E in new product designs?

A: Yes. PD57045-E is the recommended choice for new designs due to its active product status, ensuring long-term supply chain stability and manufacturer support.