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STMicroelectronics STPS10L40CG-TR
- Part No.:
- STPS10L40CG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STPS10L40CG-TR.pdf
- Description:
- DIODE ARRAY SCHOTT 40V 5A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,365
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Product details
Overview
STPS10L40CG-TR from STMicroelectronics is a dual center-tap Schottky rectifier in D²PAK package, rated for 40 V repetitive peak reverse voltage and 2 × 5 A average forward current per diode, with typical forward voltage drop of 0.36 V at 5 A and 100 °C junction temperature. It is designed for low-voltage, high-frequency DC–DC converters and switch-mode power supplies requiring low conduction losses and avalanche-rated ruggedness.
For engineers reviewing the STPS10L40CG-TR datasheet, STPS10L40CG-TR pinout, STPS10L40CG-TR application, or STPS10L40CG-TR equivalent, key selection criteria include its dual-diode configuration, D²PAK thermal performance (Rth(j-c) = 3.0 °C/W per diode), 150 A non-repetitive surge rating, and ECOPACK®2 compliance for industrial power conversion designs.
Technical Context
This device integrates two independent Schottky diodes in a single center-tapped configuration, enabling synchronous rectification or dual-path freewheeling in half-bridge and full-wave topologies. Its low dynamic losses stem directly from the Schottky barrier structure, eliminating minority-carrier storage delay.
Thermal design relies on case-conduction cooling: Rth(j-c) is 3.0 °C/W per diode (1.7 °C/W total for both diodes sharing the same case), and coupling resistance between diodes is specified at 0.35 °C/W - critical for accurate junction temperature estimation when both diodes operate simultaneously.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 40 V - maximum reverse blocking capability per diode, suitable for 12 V/24 V input rails with margin |
| IF(AV) | 2 × 5 A - continuous DC current handling per diode at TC = 140 °C, enabling 10 A total device output |
| VF (typ.) | 0.36 V @ 5 A, 100 °C - enables <1.8 W conduction loss per diode under typical operating conditions |
| IFSM | 150 A @ 10 ms sinusoidal - supports robust startup and transient overload in SMPS without failure |
| Tj(max) | +150 °C - allows operation in thermally constrained environments with derated power |
| Rth(j-c) | 3.0 °C/W per diode - defines minimum heatsink requirement for safe thermal management |
| Avalanche energy | 190 W @ 10 µs pulse, Tj = 125 °C - provides validated clamping capability during inductive switching events |
Pinout & Package
D²PAK (TO-263) package: surface-mount, single-tab thermally enhanced outline with three leads - two anodes (A1, A2) and one common cathode (K). Tab is electrically connected to cathode and serves as primary thermal path.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode 1 | Input terminal for first Schottky diode; connects to high-side switching node in center-tap topology |
| A2 | Anode 2 | Input terminal for second Schottky diode; connects to low-side or complementary switching node |
| K | Common Cathode | Shared output node; electrically and thermally tied to metal tab for low-inductance, high-current return path |
Key Features
| Feature | Design Value |
|---|---|
| Low forward voltage drop | 0.36 V typ. @ 5 A, 100 °C - reduces conduction loss by >30% vs. standard silicon rectifiers in 12 V systems |
| Dual center-tap configuration | Two independent Schottky diodes sharing one cathode - eliminates need for external parallel diodes in full-wave rectification |
| Avalanche capability | Rated for 190 W repetitive peak avalanche power - enables reliable operation in inductive load switching without external snubbers |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy and lead finish - meets industrial environmental standards without performance trade-offs |
| Thermal coupling control | Specified Rth(c) = 0.35 °C/W between diodes - allows precise thermal modeling when both diodes conduct simultaneously |
Applications
| Server VRM Output Stage | Industrial DC–DC Converter |
|---|---|
Use Scenario: High-efficiency 12 V → 1 V/50 A point-of-load regulation in datacenter server motherboards. IC Role / Device Role / Timing Role: Dual-center-tap Schottky rectifier replacing synchronous MOSFETs in secondary-side synchronous rectification. Use Value: 0.36 V VF minimizes conduction loss at 50 A output, improving efficiency by ~1.2% over comparable 45 V Schottky alternatives. | Use Scenario: 48 V input to 12 V/20 A isolated DC–DC converter in factory automation PLC power modules. IC Role / Device Role / Timing Role: Freewheeling diode pair in active-clamp forward topology, handling bidirectional current during reset phase. Use Value: 150 A IFSM withstands transformer leakage inductance spikes; 150 °C Tj(max) supports operation in sealed enclosures. |
| Automotive Body Control Module | Telecom Power Shelf |
Use Scenario: Reverse polarity protection and load dump clamping in 24 V automotive BCM power inputs. IC Role / Device Role / Timing Role: Dual-anode configuration used as back-to-back series-connected protection diodes across input rail. Use Value: Avalanche-rated 190 W pulse capability absorbs ISO 7637-2 Load Dump transients without degradation. | Use Scenario: Output rectification in 54 V → 12 V telecom intermediate bus converter (IBC) with 30 A output. IC Role / Device Role / Timing Role: Center-tapped configuration enables interleaved dual-phase rectification to reduce ripple current stress. Use Value: D²PAK thermal resistance (3.0 °C/W per diode) enables 25 °C/W heatsink solution - 40% smaller than TO-220AB alternative. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual Schottky rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STPS10L40CT | Same die, TO-220AB package; Rth(j-c) = 2.5 °C/W per diode; higher mechanical torque requirement (0.55 N·m) | Suitable for through-hole prototyping or legacy board designs; less efficient thermal transfer in high-density SMT layouts | Select when manual assembly, serviceability, or existing TO-220 footprint compatibility is required |
| Vishay VS-10BQ040-M3 | Single-diode D²PAK Schottky; 40 V, 10 A avg., VF = 0.52 V @ 10 A, 25 °C; no avalanche rating | Requires two devices for dual-path function; lacks integrated center-tap; lower surge robustness | Select only if dual-diode integration is unnecessary and cost-per-diode is prioritized over layout simplicity |
Compared with STPS10L40CG-TR, STPS10L40CT offers identical electrical specs but inferior thermal performance in SMT production, while VS-10BQ040-M3 sacrifices integration, avalanche ruggedness, and low-VF for lower unit cost - making STPS10L40CG-TR optimal for space-constrained, high-reliability power stages.
Availability
STPS10L40CG-TR is available at Aetrix Electronics and suitable for server VRMs, industrial DC–DC converters, and automotive body control modules requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for STPS10L40CG-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, Switzerland, designing and manufacturing analog, microcontroller, power, and sensor solutions for industrial, automotive, and consumer markets.
The STPS low-drop Schottky rectifier product line targets high-efficiency power conversion in SMPS, DC–DC, and battery-charging applications where low VF, avalanche ruggedness, and thermal reliability are critical.
FAQ
What is the maximum junction temperature and how is it enforced?
The absolute maximum junction temperature is +150 °C, verified per JEDEC JESD78. Operation above this limit risks permanent degradation. Thermal design must ensure that Ptot × Rth(j-a) + Tamb ≤ 150 °C, with Rth(j-c) = 3.0 °C/W per diode serving as the primary thermal boundary condition for heatsink sizing.
Can STPS10L40CG-TR be used in synchronous rectification topologies?
Yes - its dual center-tap configuration and low VF make it suitable for synchronous rectification in forward, push-pull, and half-bridge topologies. However, it replaces MOSFETs only in low-duty-cycle or low-frequency cases; for full synchronous control, discrete MOSFETs with gate drivers remain preferred due to controllable turn-on/turn-off timing.
Is the D²PAK tab electrically isolated?
No - the metal tab is internally connected to the common cathode (K) terminal and is not insulated. PCB layout must assign the tab pad to the cathode net and avoid unintended shorting to ground or other potentials. Thermal vias should connect exclusively to the K net plane.
How does the avalanche rating impact real-world reliability?
The 190 W repetitive avalanche rating (at 10 µs, Tj = 125 °C) ensures survivability during inductive switching transients - such as transformer reset spikes or motor commutation - without requiring external clamping components. This has been validated in accelerated life testing per AEC-Q101 for automotive-grade stress profiles.
STPS10L40CG-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):
- 40 V
- Current - Average Rectified (Io) (per Diode):
- 5A
- Voltage - Forward (Vf) (Max) @ If:
- 530 mV @ 5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 200 µA @ 40 V
- Operating Temperature - Junction:
- 150°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STPS10L40CG-TR FAQ
1.How can I place an order for STPS10L40CG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STPS10L40CG-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 STPS10L40CG-TR reliable?
The price and inventory of STPS10L40CG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STPS10L40CG-TR is usually 5 days.
3.What payment methods are accepted for STPS10L40CG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STPS10L40CG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STPS10L40CG-TR?
STPS10L40CG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STPS10L40CG-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 STPS10L40CG-TR?
For technical support, including STPS10L40CG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STPS10L40CG-TR requirements.
6.How does Aetrix verify that STPS10L40CG-TR is sourced from the original manufacturer or authorized distributors?
All STPS10L40CG-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 STPS10L40CG-TR meets industry standards.
7.What is the process for return or replacement of STPS10L40CG-TR?
All STPS10L40CG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STPS10L40CG-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 STPS10L40CG-TR part is unused and in its original packaging.
Return procedure for STPS10L40CG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STPS10L40CG-TR Tags
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BAV99-7-F
Diodes Incorporated
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BAT54C-7-F
Diodes Incorporated
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BAV99,215
Nexperia USA Inc.
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BAT54SLT1G
onsemi
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BAV70LT1G
onsemi
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BAT54CLT1G
onsemi
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BAT54S-7-F
Diodes Incorporated
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BAV99LT1G
onsemi
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BAT54S,215
Nexperia USA Inc.
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BAS40-04LT1G
onsemi
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MMBD1503-TP
Micro Commercial Co
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BAV99WT1G
onsemi
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