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STMicroelectronics STTH15L06D
- Part No.:
- STTH15L06D
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STTH15L06D.pdf
- Description:
- DIODE GEN PURP 600V 15A TO220AC
- Quantity:
- Payment:
- Shipping:
Inventory:1,143
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Product details
Overview
STTH15L06D from STMicroelectronics is a 600 V, 15 A average forward current ultrafast recovery rectifier diode in TO-220AC package, featuring 55 ns max reverse recovery time, 0.95 V typical forward voltage at 150 °C, and 1.7 °C/W junction-to-case thermal resistance. It serves as a discontinuous-mode PFC boost diode and output rectifier in high-frequency switching power supplies.
For engineers reviewing the STTH15L06D datasheet, STTH15L06D pinout, STTH15L06D application, or STTH15L06D equivalent, key selection criteria include reverse recovery time under 60 ns, low conduction loss at 15–20 A average current, thermal performance with Tj up to 175 °C, and compatibility with TO-220AC heatsink mounting in industrial SMPS designs.
Technical Context
The STTH15L06D employs ST's Turbo 2 silicon technology optimized for ultrafast soft recovery, minimizing reverse recovery current (IRM ≤ 12 A) and reducing EMI in high-dV/dt environments. Its dynamic behavior is characterized by softness factor ≥ 0.8 across dIF/dt up to 500 A/µs at 125 °C.
Designed for hard-switched topologies, it delivers stable trr ≤ 85 ns at IF = 1 A, dIF/dt = 50 A/µs, VR = 30 V, and maintains VF ≤ 1.2 V at 15 A and 150 °C - enabling efficient operation in 100–500 kHz PFC stages and secondary-side rectification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - supports input rectification in universal-input (85–265 VAC) SMPS with sufficient margin against line transients |
| IF(AV) | 15 A at Tc = 140 °C - enables continuous conduction in 300–500 W PFC boost stages with standard TO-220 heatsinking |
| trr (max) | 55 ns - reduces switching losses and snubber stress in >100 kHz hard-switched converters |
| VF (typ) | 0.95 V at 15 A, 150 °C - lowers conduction loss versus standard fast diodes, improving full-load efficiency |
| Rth(j-c) | 1.7 °C/W - allows direct mounting to heatsink for thermal management without forced air in industrial enclosures |
| Tj (max) | 175 °C - supports reliable operation in high-ambient environments such as enclosed power supplies and motor drives |
| IRM (max) | 12 A at dIF/dt = 100 A/µs - limits peak reverse current-induced voltage spikes across snubbers and MOSFETs |
Pinout & Package
STTH15L06D uses a 3-terminal TO-220AC package with isolated tab. The case is electrically connected to the cathode terminal, requiring insulating mounting hardware when mounted to grounded heatsinks.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Forward current entry point | Connected to AC side of bridge or PFC inductor; must withstand surge currents up to 200 A (10 ms) |
| Cathode (K) | Forward current exit / reverse blocking node | Electrically tied to metal tab; requires isolation washer if heatsink is grounded |
| Tab (K) | Thermal path + electrical cathode | Primary heat dissipation surface; contributes >90% of total thermal transfer to heatsink |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast soft recovery | trr ≤ 55 ns with softness factor ≥ 0.8 - suppresses ringing and reduces EMI filter size |
| Low VF at high temperature | 0.95 V typ. at 15 A, 150 °C - improves efficiency retention over operating temperature range |
| High surge capability | 200 A non-repetitive surge (10 ms sine) - handles inrush and overload without failure |
| Low thermal resistance | 1.7 °C/W j-c - enables compact thermal design with passive cooling in industrial power supplies |
| ECOPACK® compliant | Meets RoHS and halogen-free requirements per ST specification - supports environmental compliance in global OEM programs |
Applications
| Server PSU PFC Stage | Industrial AC-DC Adapter |
|---|---|
Use Scenario: Discontinuous conduction mode (DCM) boost PFC in 300–500 W telecom/server power supplies operating at 65–120 kHz. IC Role / Device Role / Timing Role: High-voltage boost diode conducting during switch-off phase; defines PFC stage efficiency and thermal rise. Use Value: 55 ns trr and 0.95 V VF reduce switching and conduction losses by ~12% vs. standard fast diodes, lowering heatsink requirements. | Use Scenario: Output rectification in 200–400 W industrial AC-DC adapters with wide ambient temperature range (−25 to +70 °C). IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in LLC resonant or phase-shifted full-bridge topologies. Use Value: 175 °C max junction temperature and 1.7 °C/W Rth(j-c) ensure stable operation without derating at 70 °C ambient. |
| Solar Microinverter DC Link | Motor Drive Auxiliary Supply |
Use Scenario: DC link rectification in single-phase solar microinverters with bidirectional energy flow and high dv/dt stress. IC Role / Device Role / Timing Role: Unidirectional clamp/rectifier handling high-frequency ripple and transient reversal during grid synchronization. Use Value: Soft recovery (S factor ≥ 0.8) minimizes voltage overshoot on IGBT gate drivers during commutation events. | Use Scenario: Auxiliary bias supply rectifier in 3-phase inverter drives powering HVAC or pumps (1–5 kW). IC Role / Device Role / Timing Role: Input rectifier feeding isolated flyback controller IC; subjected to repeated load transients and thermal cycling. Use Value: 200 A IFSM rating ensures robustness against startup surges and short-circuit fault conditions in drive control circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS MUR1560 | 600 V, 15 A, trr = 60 ns (max), VF = 1.15 V @ 15 A, 25 °C, Rth(j-c) = 2.0 °C/W | Higher VF increases conduction loss at full load; slightly slower recovery increases snubber sizing | Preferred where cost sensitivity outweighs 3–5% efficiency loss and board space permits larger snubber |
| Vishay VS-15EWH06 | 600 V, 15 A, trr = 50 ns (max), VF = 0.92 V @ 15 A, 150 °C, Rth(j-c) = 1.5 °C/W, D²PAK only | Lower Rth(j-c) improves thermal headroom but requires SMT assembly and different PCB layout | Selected when surface-mount integration and maximum thermal performance are prioritized over through-hole serviceability |
Compared with MUR1560 and VS-15EWH06, STTH15L06D offers optimal balance of TO-220AC mechanical robustness, 55 ns trr, and proven 175 °C junction reliability - making it preferred for field-serviceable industrial power modules where thermal margin and mounting flexibility matter.
Availability
STTH15L06D is available at Aetrix Electronics and suitable for server power supply PFC stages, industrial AC-DC adapters, and solar microinverter DC link circuits requiring stable component supply, long-lifecycle support, and traceable sourcing.
Supply support for STTH15L06D 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The STTH series belongs to ST's high-voltage power diode product line, engineered specifically for ultrafast, low-loss rectification in high-frequency switching power supplies and PFC circuits demanding soft recovery and thermal resilience.
FAQ
Is STTH15L06D suitable for use in automotive applications?
No. STTH15L06D is not qualified for automotive use per ST's official documentation. It lacks AEC-Q101 qualification and is explicitly excluded from safety-critical, automotive, or aerospace applications in its datasheet disclaimer. Use only in industrial, computing, or general-purpose power supplies.
What is the recommended torque for the mounting screw?
The recommended torque value for the TO-220AC mounting screw is 0.4 to 0.6 N·m, as specified in the official STMicroelectronics package documentation. Exceeding this range risks cracking the epoxy body or deforming the leadframe, compromising thermal and mechanical integrity.
Does STTH15L06D have a built-in thermal protection feature?
No. STTH15L06D is a passive rectifier diode with no integrated thermal shutdown or sensing circuitry. Thermal protection must be implemented externally via thermistors, thermal fuses, or system-level monitoring of heatsink temperature or current derating curves.
Can STTH15L06D replace STTH1606 in an existing design?
No. STTH1606 is a 600 V, 16 A device in TO-220AC with different VF (1.1 V typ.), trr (65 ns max), and thermal resistance (1.5 °C/W). While pin-compatible, STTH15L06D has lower IF(AV) rating (15 A vs. 16 A), higher VF at 25 °C, and distinct dynamic characteristics - requiring revalidation of thermal and efficiency margins.
STTH15L06D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 15A
- Voltage - Forward (Vf) (Max) @ If:
- 1.55 V @ 15 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 85 ns
- Current - Reverse Leakage @ Vr:
- 15 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- 175°C (Max)
STTH15L06D FAQ
1.How can I place an order for STTH15L06D through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH15L06D 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 STTH15L06D reliable?
The price and inventory of STTH15L06D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH15L06D is usually 5 days.
3.What payment methods are accepted for STTH15L06D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH15L06D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH15L06D?
STTH15L06D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH15L06D 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 STTH15L06D?
For technical support, including STTH15L06D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH15L06D requirements.
6.How does Aetrix verify that STTH15L06D is sourced from the original manufacturer or authorized distributors?
All STTH15L06D 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 STTH15L06D meets industry standards.
7.What is the process for return or replacement of STTH15L06D?
All STTH15L06D units undergo pre-shipment inspection (PSI). If there is an issue with STTH15L06D, 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 STTH15L06D part is unused and in its original packaging.
Return procedure for STTH15L06D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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