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STMicroelectronics SPV1001N40
- Part No.:
- SPV1001N40
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- 8-PowerVDFN
- Datasheet:
-
SPV1001N40.pdf
- Description:
- DIODE GEN PURP 40V 12.5A 8PQFN
- Quantity:
- Payment:
- Shipping:
Inventory:7,204
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Product details
Overview
SPV1001N40 from STMicroelectronics is a smart bypass switch for photovoltaic panel strings, replacing Schottky diodes with active MOSFET-based rectification. It delivers IF = 12.5 A, VR = 40 V, VF,AVG = 140 mV (typ., IF = 10 A, TJ = 25°C), IR = 1 µA (VR = 30 V, TJ = 25°C), and operates up to TJ = 150 °C - enabling cooler, more efficient hot-spot protection in solar modules.
For engineers reviewing the SPV1001N40 datasheet, SPV1001N40 pinout, SPV1001N40 application, or SPV1001N40 equivalent, this device offers verified low-loss bypass functionality with quantified thermal resistance (RthJC = 4 °C/W), duty-cycle-controlled conduction (TON/T = 95% at 25°C), and PQFN 5 × 6 mm package compatibility for high-reliability PV string designs.
Technical Context
The SPV1001N40 implements an autonomous self-powered gate-drive architecture: during OFF time, an internal capacitor is charged from the string current; during ON time, that stored charge drives the MOSFET gate, minimizing forward conduction loss. This eliminates external biasing while maintaining precise TON/T control.
Its operation targets photovoltaic bypass use cases where reverse blocking (40 V) and ultra-low average forward drop (140 mV @ 10 A) directly reduce thermal stress on shaded cells. The 4 °C/W junction-to-case thermal resistance enables direct mounting to heatsinked copper areas per Figure 4, supporting sustained 12.5 A conduction without derating at 75°C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max reverse voltage (VR) | 40 V - blocks full string open-circuit voltage under partial shading without breakdown. |
| Max forward current (IF) | 12.5 A - supports standard 60- or 72-cell PV module string currents without external parallel devices. |
| Avg forward voltage (VF,AVG) | 140 mV @ 10 A, 25°C - reduces power loss by >60% vs. typical Schottky diodes (~450–600 mV), cutting heat generation. |
| Reverse leakage (IR) | 1 µA @ VR = 30 V, 25°C - minimizes parasitic current drain from adjacent illuminated cells during shading. |
| Junction temp range (TJ) | −40 to +150 °C - ensures reliable operation inside sealed PV junction boxes exposed to desert or rooftop extremes. |
| Thermal resistance (RthJC) | 4 °C/W - allows direct thermal coupling to PCB copper pour or heatsink, simplifying thermal design for 12.5 A loads. |
| TON/T ratio | 95% @ 5 A, 25°C - maximizes conduction time while maintaining low average VF, optimizing efficiency over temperature. |
Pinout & Package
PQFN 5 × 6 mm package with exposed thermal pad (pin 1 = Anode, pin 2 = Cathode); RoHS-compliant ECOPACK® grade; moisture sensitivity level MSL3.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Input terminal for PV string current during bypass mode | Connects to upstream cell string; carries full module current when downstream cells are shaded. |
| Cathode (Pin 2) | Output terminal returning current to downstream string segment | Completes bypass path; must be routed with low-inductance trace to minimize switching transients. |
| Exposed thermal pad | Integrated heatsink interface | Electrically connected to cathode; requires soldered copper area ≥5 cm² for rated 12.5 A operation at 150°C TJ. |
Key Features
| Feature | Design Value |
|---|---|
| Self-powered gate drive | No external bias supply needed - energy harvested from string current enables autonomous switching. |
| Ultra-low VF,AVG | 140 mV typ. @ 10 A reduces conduction loss to <1.4 W, enabling smaller heatsinks or higher packing density. |
| Low IR at high TJ | 10 µA @ 125°C ensures minimal power theft from illuminated cells even in hot climates. |
| High-temperature operation | Rated continuous operation at TJ = 150°C matches PV junction box thermal envelope without derating. |
| ECOPACK® packaging | PQFN 5 × 6 mm meets lead-free, halogen-free, and RoHS requirements for global solar deployments. |
Applications
| Residential Rooftop PV Arrays | Commercial Solar Carports |
|---|---|
|
Use Scenario: Partial shading from chimneys, vents, or adjacent structures causes localized cell string imbalance. IC Role / Device Role / Timing Role: Smart bypass switch activated only during shading events; replaces passive Schottky with dynamic conduction control. Use Value: Reduces hotspot temperature rise by >25°C vs. Schottky diodes, extending module lifetime and preserving warranty compliance. |
Use Scenario: Large-area carport arrays experience variable shading from support columns and vehicle movement. IC Role / Device Role / Timing Role: String-level bypass element integrated into junction box PCB; autonomously manages current rerouting without controller intervention. Use Value: Enables consistent 12.5 A bypass capacity across 150°C operating range, eliminating thermal runaway risk in enclosed mounting environments. |
| Utility-Scale Ground-Mount Farms | Off-Grid Solar + Storage Systems |
|
Use Scenario: Dust accumulation and seasonal vegetation cause progressive, non-uniform shading across thousands of modules. IC Role / Device Role / Timing Role: High-reliability bypass unit with 4 °C/W RthJC, mounted directly to aluminum heatsink plates in IP66 junction boxes. Use Value: Sustains full-rated current without derating at 75°C ambient, reducing O&M costs from premature diode failure. |
Use Scenario: Remote telecom or rural microgrids require long-term field reliability with minimal maintenance access. IC Role / Device Role / Timing Role: Solid-state bypass switch with −40 to +150°C rating, eliminating Schottky degradation mechanisms (e.g., metal migration). Use Value: Extends junction box service life beyond 25 years by eliminating reverse-leakage-induced thermal drift and parametric shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar photovoltaic bypass switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Vishay VS-12CWQ040FNTR-M3 | Schottky diode: VF = 450 mV @ 12 A, IR = 100 µA @ 40 V, no active control | Higher conduction loss increases hotspot risk; requires larger heatsink; no TON/T optimization | Lower BOM cost but higher system-level thermal management complexity and reduced long-term reliability. |
| Infineon IPP040N10N5 | Discrete N-channel MOSFET: requires external gate driver, bootstrap circuit, and control logic | Not a drop-in solution; adds PCB area, component count, and firmware dependency | Offers design flexibility for custom control but increases validation burden and time-to-market for PV OEMs. |
Compared with VS-12CWQ040FNTR-M3 and IPP040N10N5, SPV1001N40 delivers lower system-level thermal load, zero external biasing, and guaranteed TJ = 150°C operation - making it optimal for pre-certified, space-constrained PV junction box integration.
Availability
SPV1001N40 is available at Aetrix Electronics and suitable for residential rooftop PV arrays, commercial solar carports, and utility-scale ground-mount farms requiring stable component supply, long-lifecycle availability, and compliance with IEC 61215/61730 standards.
Supply support for SPV1001N40 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 silicon solutions for automotive, industrial, and power applications.
The SPV1001N40 belongs to ST's photovoltaic system-in-package product line, engineered specifically to replace legacy Schottky diodes with intelligent, thermally optimized bypass switches for next-generation solar modules.
FAQ
Is SPV1001N40 pin-compatible with standard Schottky diodes in existing PV junction box layouts?
Yes - SPV1001N40 uses a 2-pin PQFN 5 × 6 mm package with anode/cathode terminals aligned to industry-standard Schottky footprints. Its exposed thermal pad connects electrically to the cathode, matching conventional diode thermal mounting practices without layout redesign.
Does SPV1001N40 require external gate drive circuitry or control signals?
No - SPV1001N40 is fully autonomous: it harvests energy from the PV string current during OFF time to charge its internal gate capacitor, then uses that stored charge to drive the MOSFET gate during ON time. No external bias, clock, or control lines are needed.
How does SPV1001N40 perform under high-temperature conditions common in rooftop PV installations?
SPV1001N40 is rated for continuous operation up to TJ = 150°C, with VF,AVG increasing only to 280 mV and IR remaining at 10 µA at 125°C - ensuring stable bypass performance even inside sealed junction boxes on dark-colored roofs under peak summer insolation.
Can SPV1001N40 be used in systems with string voltages exceeding 40 V?
No - SPV1001N40 has a maximum DC reverse voltage rating of 40 V. It is designed for use in standard 60- or 72-cell crystalline silicon PV strings (typically ≤35 V Voc per substring). For higher-voltage architectures, multiple SPV1001N40 units must be series-connected with appropriate balancing.
SPV1001N40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- 8-PowerVDFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 12.5A
- Voltage - Forward (Vf) (Max) @ If:
- 140 mV @ 10 A
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 30 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-PQFN (5x6)
- Operating Temperature - Junction:
- -45°C ~ 150°C
SPV1001N40 FAQ
1.How can I place an order for SPV1001N40 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPV1001N40 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 SPV1001N40 reliable?
The price and inventory of SPV1001N40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPV1001N40 is usually 5 days.
3.What payment methods are accepted for SPV1001N40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPV1001N40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPV1001N40?
SPV1001N40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPV1001N40 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 SPV1001N40?
For technical support, including SPV1001N40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPV1001N40 requirements.
6.How does Aetrix verify that SPV1001N40 is sourced from the original manufacturer or authorized distributors?
All SPV1001N40 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 SPV1001N40 meets industry standards.
7.What is the process for return or replacement of SPV1001N40?
All SPV1001N40 units undergo pre-shipment inspection (PSI). If there is an issue with SPV1001N40, 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 SPV1001N40 part is unused and in its original packaging.
Return procedure for SPV1001N40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SPV1001N40 Tags
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