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STMicroelectronics STPS41L30CG-TR
- Part No.:
- STPS41L30CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS41L30CG-TR.pdf
- Description:
- DIODE ARRAY SCHOTT 30V 20A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:185
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Product details
Overview
STPS41L30CG-TR from STMicroelectronics is a dual-center-tab low-drop Schottky rectifier optimized for high-frequency DC-DC converters and SMPS secondary-side synchronous rectification. It features 30 V repetitive peak reverse voltage, 40 A total average forward current (2 × 20 A per diode), 0.38 V max forward voltage at 125°C/20 A, 150°C max junction temperature, and D2PAK package with low thermal resistance (1.5 °C/W junction-to-case per diode). It is used in 12 V/24 V server VRMs and telecom power modules.
For engineers reviewing the STPS41L30CG-TR datasheet, STPS41L30CG-TR pinout, STPS41L30CG-TR application, or STPS41L30CG-TR equivalent, key selection criteria include low VF at high Tj, avalanche-rated surge capability (220 A IFSM), dual-diode thermal coupling behavior, and D2PAK mounting compatibility with high-power PCB layouts.
Technical Context
This dual Schottky rectifier integrates two independent anode-cathode junctions sharing a common center tab (cathode connection), enabling bidirectional freewheeling or dual-output rectification. Its extremely fast switching (negligible reverse recovery) and low conduction loss stem from platinum-silicide barrier technology and optimized epitaxial structure.
Thermal design relies on validated junction-to-case resistance (1.5 °C/W per diode) and coupling resistance (0.1 °C/W between diodes), allowing accurate ΔTj estimation when both diodes conduct simultaneously. Avalanche capability is fully specified (6500 W peak, 1 µs pulse) and derated linearly above 25°C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 30 V - Maximum reverse blocking voltage per diode; enables use in ≤24 V output rails with margin. |
| IF(AV) per diode | 20 A at Tc = 135°C, δ = 0.5 - Sustained DC current rating under pulsed thermal conditions. |
| VF max | 0.38 V at Tj = 125°C, IF = 20 A - Low conduction loss critical for >95% efficiency in high-current, low-Vout converters. |
| IFSM | 220 A, tp = 10 ms sinusoidal - Withstands short-circuit and startup surges without failure. |
| Rth(j-c) per diode | 1.5 °C/W - Enables direct heatsink mounting via center tab; supports >40 W dissipation with 60°C rise. |
| dV/dt | 10,000 V/µs - Immune to false turn-on in fast-switching topologies like phase-shifted full-bridge. |
| PARM | 6500 W at Tj = 25°C, tp = 1 µs - Fully characterized avalanche energy handling for unclamped inductive switching. |
Pinout & Package
STPS41L30CG-TR is housed in a surface-mount D2PAK (TO-263) package with three terminals: two anodes (A1, A2) and one shared cathode (K) on the center tab. The exposed metal tab is electrically connected to the cathode and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first diode; connects to transformer secondary or switch node in dual-output configuration. |
| A2 | Anode 2 | Input terminal for second diode; enables independent control of two output paths or interleaved operation. |
| K (center tab) | Common cathode | Output node tied to system ground or common rail; provides low-inductance, high-current return path and thermal interface. |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.35–0.38 V at 125°C/20 A - Reduces conduction loss by ≥30% vs. standard Schottkys in 48 V–12 V conversion stages. |
| High avalanche energy rating | 6500 W peak (1 µs) - Eliminates need for external snubbers in flyback or LLC resonant converter freewheeling paths. |
| Dual-diode thermal coupling | Rth(c) = 0.1 °C/W between diodes - Enables balanced thermal stress in parallel-output or redundant power designs. |
| Extremely fast switching | No reverse recovery charge (Qrr ≈ 0) - Prevents cross-conduction losses and EMI in >500 kHz switching applications. |
| Low thermal resistance | 1.5 °C/W j-c per diode - Supports >35 A continuous current with 75°C case temperature on 25 cm² copper pad. |
Applications
| Server VRM Output Rectification | Telecom 48 V to 12 V DC-DC Converter |
|---|---|
Use Scenario: High-current, low-voltage output stage of multiphase buck converters supplying CPU/GPU core power. IC Role / Device Role / Timing Role: Secondary-side synchronous rectifier replacing MOSFETs; conducts during low-side switch on-time. Use Value: 0.38 V VF at 125°C reduces conduction loss by 1.5 W per phase vs. comparable 40 A discrete Schottky, improving thermal margin. | Use Scenario: Isolated forward converter delivering 12 V/30 A to base station RF modules. IC Role / Device Role / Timing Role: Dual-anode freewheeling diode across transformer secondary windings. Use Value: 220 A IFSM withstands 10 ms overload during antenna fault events; dual layout simplifies PCB routing. |
| Industrial PLC Power Supply | Automotive ADAS Domain Controller PSU |
Use Scenario: 24 V input, 5 V/3.3 V dual-output offline SMPS for programmable logic controllers. IC Role / Device Role / Timing Role: Dual-output rectifier with independent anodes feeding separate LDOs or buck controllers. Use Value: Shared cathode minimizes ground loop inductance; 150°C Tj rating ensures reliability at 70°C ambient + 40°C board rise. | Use Scenario: 12 V input, 5 V/3.3 V power tree in radar/Ethernet domain controller with ASIL-B requirements. IC Role / Device Role / Timing Role: Polarity protection and reverse-battery safeguard at main 12 V input rail. Use Value: 30 V VRRM provides 2× margin over automotive load-dump transients; avalanche rating covers ISO 7637-2 Pulse 5a. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS30L30CG-TR | 30 A total IF(AV), same VRRM and package; higher VF (0.42 V max at 125°C/15 A). | Suitable for lower-current (<25 A) designs where thermal budget allows higher VF. | Select when cost sensitivity outweighs 0.04 V VF penalty and peak current stays below 30 A. |
| MBR4030CTG | TO-220AB package, 40 A IF(AV), but no specified avalanche rating; VF = 0.55 V at 25°C/20 A. | Requires heatsink; not recommended for unclamped inductive switching or high-density layouts. | Choose only if D2PAK footprint is unavailable and avalanche robustness is not required. |
Compared with STPS30L30CG-TR and MBR4030CTG, STPS41L30CG-TR delivers superior thermal performance (lower Rth(j-c)), tighter VF control at elevated temperature, and fully characterized avalanche capability-making it optimal for high-reliability, high-power-density 24–48 V DC-DC systems.
Availability
STPS41L30CG-TR is available at Aetrix Electronics and suitable for server VRMs, telecom DC-DC converters, and industrial PLC power supplies requiring stable component supply, tape-and-reel automation compatibility, and long-term lifecycle assurance.
Supply support for STPS41L30CG-TR includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
This device belongs to ST's Power Schottky Rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in space-constrained and thermally demanding applications.
FAQ
What is the maximum continuous current rating for STPS41L30CG-TR at 100°C case temperature?
At Tc = 100°C, the device supports 32 A total average forward current (16 A per diode) with δ = 0.5 duty cycle, derived from Fig. 2 in the datasheet. This assumes adequate PCB copper area (≥25 cm²) and no airflow. Derating is linear from 40 A at 135°C to 0 A at ~165°C.
Can STPS41L30CG-TR be used in place of a single-diode Schottky like STPS20L30D?
Yes, but only if the circuit requires dual-anode functionality or shared-cathode topology. Using only one anode de-rates total current to 20 A and leaves unused silicon; thermal coupling benefits are lost. For single-path applications, STPS20L30D offers better cost-per-amp and smaller footprint.
Is the center tab (K) electrically isolated from the plastic body?
No-the center tab is the cathode terminal and is electrically connected to the internal die cathodes. It must be mounted on a non-isolated copper pour or heatsink. Electrical isolation requires insulating hardware (e.g., silicone pad + shoulder washer) and careful creepage/clearance verification per IEC 62368-1.
Does STPS41L30CG-TR meet AEC-Q101 for automotive use?
No-this part is not AEC-Q101 qualified. While its 150°C Tj rating and avalanche capability suit harsh environments, ST does not list it in their qualified automotive portfolio. For automotive ADAS applications, ST recommends the AEC-Q101-qualified STPS40L30CW (D2PAK, same specs, qualified).
STPS41L30CG-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Schottky
- Voltage - DC Reverse (Vr) (Max):
- 30 V
- Current - Average Rectified (Io) (per Diode):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 480 mV @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1.5 mA @ 30 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS41L30CG-TR FAQ
1.How can I place an order for STPS41L30CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS41L30CG-TR on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for STPS41L30CG-TR reliable?
The price and inventory of STPS41L30CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS41L30CG-TR is usually 5 days.
3.What payment methods are accepted for STPS41L30CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS41L30CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS41L30CG-TR?
STPS41L30CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS41L30CG-TR order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for STPS41L30CG-TR?
For technical support, including STPS41L30CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS41L30CG-TR requirements.
6.How does Aetrix verify that STPS41L30CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS41L30CG-TR products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that STPS41L30CG-TR meets industry standards.
7.What is the process for return or replacement of STPS41L30CG-TR?
All STPS41L30CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS41L30CG-TR, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The STPS41L30CG-TR part is unused and in its original packaging.
Return procedure for STPS41L30CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS41L30CG-TR Tags
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