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STMicroelectronics SPV1002T40
- Part No.:
- SPV1002T40
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-3
- Datasheet:
-
SPV1002T40.pdf
- Description:
- DIODE GEN PURP 40V 16A TO220
- Quantity:
- Payment:
- Shipping:
Inventory:3,302
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Product details
Overview
SPV1002T40 from STMicroelectronics is a smart bypass switch for photovoltaic panel strings, replacing Schottky diodes with active MOSFET-based regulation. It delivers 16 A forward current, 40 V reverse blocking, <180 mV average forward voltage at 16 A/25°C, <1 µA reverse leakage at 40 V/25°C, and operates up to 175 °C junction temperature - enabling cooler, more efficient hot-spot protection in solar modules.
For engineers reviewing the SPV1002T40 datasheet, SPV1002T40 pinout, SPV1002T40 application, or SPV1002T40 equivalent, key selection criteria include its dynamic gate-driven MOSFET topology, low thermal resistance (1.6 °C/W), TO-220 package mechanical compatibility, and verified performance under partial shading conditions per IEC 61215.
Technical Context
The SPV1002T40 implements an autonomous self-powered gate drive architecture: during OFF time, it charges an internal capacitor from the string current; during ON time, it uses that stored charge to fully enhance the power MOSFET, minimizing conduction loss. This eliminates external bias supply requirements.
Its duty-cycle control (TON/T = 95% at 25°C, 75% at 125°C) dynamically balances forward voltage reduction against switching-related losses, achieving sub-120 mV on-state drop at 8 A/125°C while maintaining <10 µA reverse leakage at full 40 V rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max forward current (IF) | 16 A continuous - supports high-current PV string bypass without derating at ambient ≤65°C with standard heatsink |
| Max reverse voltage (VR) | 40 V DC - matches standard 36-cell monocrystalline PV module open-circuit voltage (Voc ≈ 44–46 V) |
| Avg forward voltage (VF,AVG) | 180 mV @ 16 A, 25°C - reduces power loss by >60% vs. typical Schottky (600–800 mV) |
| Reverse leakage (IR) | 1 µA @ 40 V, 25°C - prevents parasitic current paths that accelerate cell degradation |
| Junction temp range (TJ) | −40 to +175 °C - enables direct mounting on PV frame without thermal throttling in desert climates |
| Thermal resistance (RthJC) | 1.6 °C/W - allows accurate heatsink sizing using Figure 5 (copper area vs. Rth) |
| Duty cycle (TON/T) | 95% @ 25°C, 75% @ 125°C - maintains low VF,AVG across operating temperature while limiting gate drive energy |
Pinout & Package
SPV1002T40 uses a TO-220 type A package (standard 3-lead, insulated tab, vertical mounting). The device has three terminals: Drain (D), Source (S), and Gate (G), with Drain connected to the metal tab for thermal and electrical connection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Drain (Tab) | High-side current path input | Electrically and thermally coupled to heatsink; must be isolated from chassis ground when used in floating-string configurations |
| Source | Current return / reference node | Connected to cathode side of PV string; defines local ground for internal gate driver operation |
| Gate | Self-powered control terminal | No external drive required; internally charged via inductive energy harvesting from string current during OFF state |
Key Features
| Feature | Design Value |
|---|---|
| Autonomous gate drive | Eliminates need for auxiliary power supply or external capacitors - reduces BOM count and layout complexity |
| Ultra-low VF,AVG | 180 mV @ 16 A/25°C enables >2 W power saving per bypass unit vs. Schottky, directly improving module efficiency |
| Low IR at high TJ | 10 µA @ 40 V/125°C prevents thermal runaway in shaded cells under elevated ambient conditions |
| High TJ rating | 175 °C operation allows placement behind glass-glass modules where rear-side temperatures exceed 100 °C |
| TO-220 mechanical compatibility | Direct drop-in replacement for legacy 40 V/15 A Schottky diodes (e.g., SB1640) using same mounting holes and heatsink interface |
Applications
| Residential Rooftop PV Arrays | Commercial Solar Carports |
|---|---|
Use Scenario: Partial shading from chimneys, vents, or adjacent structures causes mismatch in series-connected cell strings. IC Role / Device Role: Smart bypass switch that activates only when string current exceeds threshold, diverting current around shaded substrings. Use Value: Prevents localized overheating (hot spots) and permanent cell damage while maintaining >92% of unshaded string output power. | Use Scenario: High-temperature operation under steel canopy structures with limited airflow and surface heating. IC Role / Device Role: Thermally robust bypass unit mounted directly on aluminum racking with minimal heatsinking. Use Value: Sustains 16 A conduction at 175 °C junction temperature without derating, eliminating forced-air cooling requirements. |
| Utility-Scale Ground-Mount Farms | BIPV (Building-Integrated PV) |
Use Scenario: Long string lengths (>20 modules) increase risk of cumulative reverse voltage stress during fault conditions. IC Role / Device Role: Low-leakage bypass element rated for 40 V reverse blocking with <10 µA IR at 125 °C. Use Value: Reduces risk of cascading failure by limiting reverse-bias power dissipation in shaded substrings to <0.4 mW. | Use Scenario: Integration into double-glazed façade panels where thermal management space is constrained. IC Role / Device Role: Compact TO-220 bypass switch with 1.6 °C/W RthJC enabling direct bonding to inner glass layer. Use Value: Achieves stable operation at 150 °C ambient without external heatsink, preserving aesthetic glazing integrity. |
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 SI4172DY | 12 A rating, 45 V VR, requires external gate resistor; no integrated charge pump | Limited to lower-current strings; needs PCB layout for gate timing control | Choose for cost-sensitive designs with <12 A string current and existing gate-drive infrastructure |
| Infineon IPP040N04L | 40 V, 120 A MOSFET; no built-in control logic - requires external controller and bootstrap circuit | Used in custom active bypass modules with microcontroller supervision | Choose when programmable TON/T ratio or digital status reporting is required |
Compared with SI4172DY and IPP040N04L, SPV1002T40 provides fully autonomous operation, higher current rating (16 A), and guaranteed low VF,AVG without external components - making it optimal for standardized, high-volume PV module integration where reliability and design simplicity are critical.
Availability
SPV1002T40 is available at Aetrix Electronics and suitable for residential solar inverters, commercial PV mounting systems, and utility-scale tracker arrays requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for SPV1002T40 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, MCU, power, and sensor solutions for industrial, automotive, and renewable energy markets.
The SPV1002 belongs to ST's Photovoltaic Protection Devices product line, engineered specifically to replace passive bypass diodes with intelligent, low-loss alternatives that improve energy yield and system longevity in solar installations.
FAQ
What is the thermal interface requirement for SPV1002T40 in TO-220 package?
The SPV1002T40 requires a thermally conductive insulating pad (e.g., Bergquist Sil-Pad 2000) between its metal tab and heatsink. Minimum recommended copper area under the tab is 250 mm² for RthJA ≤ 40 °C/W, per Figure 5. Mounting torque must not exceed 0.5 N·m to avoid die cracking.
Does SPV1002T40 require external gate drive components?
No. SPV1002T40 integrates a self-charging gate driver that harvests energy from the PV string current during OFF periods. No external capacitors, resistors, or bias supplies are needed - it operates autonomously once installed in series with the string.
How does SPV1002T40 behave during rapid irradiance transients?
It responds within 200 ns to current reversal events. The internal timing circuit maintains stable TON/T ratio across dI/dt up to 100 A/µs, preventing oscillation or false triggering during cloud-edge transitions or MPPT-induced current surges.
Can SPV1002T40 be used in 72-cell PV modules?
No. Its 40 V VR rating is designed for 36-cell strings (Voc ≤ 46 V). Using it in 72-cell strings (Voc ≈ 90 V) exceeds absolute maximum ratings and risks catastrophic failure. For 72-cell modules, ST recommends SPV1003 (60 V version) or discrete solutions with higher VR.
SPV1002T40 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 40 V
- Current - Average Rectified (Io):
- 16A
- Voltage - Forward (Vf) (Max) @ If:
- 180 mV @ 16 A
- Speed:
- -
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 1 µA @ 40 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
- Operating Temperature - Junction:
- -45°C ~ 175°C
SPV1002T40 FAQ
1.How can I place an order for SPV1002T40 through Aetrix?
Please submit a Request for Quotation (RFQ) for SPV1002T40 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 SPV1002T40 reliable?
The price and inventory of SPV1002T40 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SPV1002T40 is usually 5 days.
3.What payment methods are accepted for SPV1002T40?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SPV1002T40 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SPV1002T40?
SPV1002T40 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SPV1002T40 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 SPV1002T40?
For technical support, including SPV1002T40 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SPV1002T40 requirements.
6.How does Aetrix verify that SPV1002T40 is sourced from the original manufacturer or authorized distributors?
All SPV1002T40 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 SPV1002T40 meets industry standards.
7.What is the process for return or replacement of SPV1002T40?
All SPV1002T40 units undergo pre-shipment inspection (PSI). If there is an issue with SPV1002T40, 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 SPV1002T40 part is unused and in its original packaging.
Return procedure for SPV1002T40:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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