UPA2812T1L-E2-AT Equivalent & Substitute Parts

Part Overview

The UPA2812T1L-E2-AT is a P-Channel MOSFET manufactured by Renesas Electronics Corporation, rated for 30V drain-to-source voltage and 30A continuous drain current in a surface mount 8-HWSON (3.3x3.3) package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for new designs and production continuity. The part operates at a maximum junction temperature of 150°C with a power dissipation rating of 1.5W at ambient temperature.

Substiute Parts

UPA2812T1L-E2-AT

Renesas Electronics CorporationIn Stock: 774UPA2812T1L-E2-AT Datasheet

Current PartRFQ

STL42P4LLF6

STMicroelectronicsIn Stock: 17971STL42P4LLF6 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the UPA2812T1L-E2-AT is determined by the following critical parameters:

Channel Type & Polarity: P-Channel topology is mandatory for functional equivalence in circuits designed for this device.

Voltage Rating (Vdss): The substitute must equal or exceed the 30V rating. The STL42P4LLF6 provides 40V, which satisfies this requirement with additional voltage margin.

Current Capacity (Id): The substitute must equal or exceed the 30A continuous drain current specification. The STL42P4LLF6 provides 42A, meeting this requirement.

On-Resistance (Rds On): The substitute must maintain electrical performance within acceptable circuit parameters. The STL42P4LLF6 specifies 18mOhm @ 5A, 10V, which differs from the main part's 4.8mOhm @ 30A, 10V due to different measurement conditions.

Gate Charge (Qg): The substitute exhibits lower gate charge (22nC @ 4.5V versus 100nC @ 10V), indicating faster switching characteristics.

Input Capacitance (Ciss): The substitute provides lower input capacitance (2850pF @ 25V versus 3740pF @ 10V), reducing gate drive requirements.

Mounting & Package: Both devices are surface mount; however, the STL42P4LLF6 uses PowerFlat™ (5x6) packaging versus the 8-HWSON (3.3x3.3) of the main part. This represents a physical package change requiring PCB layout modification.

Compliance & Status: Both devices are ROHS3 compliant, REACH unaffected, and carry MSL 1 rating. The STL42P4LLF6 is active production status, whereas the UPA2812T1L-E2-AT is obsolete.

Parameter Comparison

Engineering Selection Recommendations

Functional Equivalence: The STL42P4LLF6 meets the electrical requirements for P-Channel MOSFET substitution with equal or superior ratings across voltage (40V vs. 30V), current capacity (42A vs. 30A), and temperature range (175°C vs. 150°C). Both devices maintain identical gate drive voltage specifications (4.5V, 10V) and maximum gate-source voltage (±20V).

Compliance & Certification: Both devices are ROHS3 compliant and REACH unaffected, satisfying regulatory requirements for equivalent component selection. Both carry MSL 1 (unlimited moisture sensitivity level), indicating identical handling and storage requirements.

Production Status: The STL42P4LLF6 is active production status with 17,885 pieces in stock, ensuring long-term availability and supply chain continuity. The UPA2812T1L-E2-AT is obsolete with limited remaining inventory (672 pieces).

Package Consideration: The STL42P4LLF6 uses PowerFlat™ (5x6) packaging, which differs from the 8-HWSON (3.3x3.3) package of the main part. This change requires PCB layout redesign and thermal management evaluation, as the larger package footprint may provide improved thermal dissipation characteristics.

Performance Characteristics: The STL42P4LLF6 exhibits lower gate charge (22nC vs. 100nC) and reduced input capacitance (2850pF vs. 3740pF), resulting in faster switching response and reduced gate drive power requirements. The substitute's significantly higher power dissipation rating (75W vs. 1.5W) indicates enhanced thermal capability.

Frequently Asked Questions (FAQ)

Q: Can the STL42P4LLF6 directly replace the UPA2812T1L-E2-AT without circuit modification?

A: Electrical substitution is valid based on channel type, voltage rating, and current capacity. However, the package change from 8-HWSON (3.3x3.3) to PowerFlat™ (5x6) requires PCB layout modification. Gate drive circuits may benefit from the lower gate charge specification but do not require modification for functional operation.

Q: What are the key electrical parameters that determine substitution validity?

A: P-Channel topology, Vdss rating (minimum 30V), continuous drain current (minimum 30A), gate drive voltage compatibility (4.5V, 10V), and maximum gate-source voltage (±20V) are the primary substitution criteria. Both devices meet these specifications.

Q: Does the lower gate charge of the STL42P4LLF6 affect circuit design?

A: The STL42P4LLF6 exhibits lower gate charge (22nC @ 4.5V) compared to the UPA2812T1L-E2-AT (100nC @ 10V). This results in reduced gate drive power dissipation and faster switching transitions. Existing gate drive circuits operate without modification, but optimization for the lower gate charge is possible.

Q: Are there thermal management differences between these devices?

A: The STL42P4LLF6 provides significantly higher power dissipation capability (75W @ Tc vs. 1.5W @ Ta) and operates at a higher maximum junction temperature (175°C vs. 150°C). The larger PowerFlat™ package footprint typically provides improved thermal coupling to PCB copper planes.

Q: What compliance certifications apply to both devices?

A: Both the UPA2812T1L-E2-AT and STL42P4LLF6 are ROHS3 compliant and REACH unaffected. Both carry MSL 1 (unlimited) moisture sensitivity level, indicating identical handling and storage requirements throughout the supply chain.

Q: Is the package change from 8-HWSON to PowerFlat™ a significant design consideration?

A: Yes. The package footprint change from 3.3x3.3mm to 5x6mm requires PCB layout redesign. The larger package may provide improved thermal performance but increases board space requirements. Thermal via placement and copper area allocation should be evaluated for the new package geometry.

Q: What is the availability status of each device?

A: The STL42P4LLF6 is active production status with 17,885 pieces in stock, ensuring long-term supply availability. The UPA2812T1L-E2-AT is obsolete with 672 pieces remaining in inventory, indicating limited availability for future procurement.