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STMicroelectronics STTH3006W
- Part No.:
- STTH3006W
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- DO-247-2 (Straight Leads)
- Datasheet:
-
STTH3006W.pdf
- Description:
- DIODE GEN PURP 600V 30A DO247
- Quantity:
- Payment:
- Shipping:
Inventory:1,882
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Product details
Overview
STTH3006W from STMicroelectronics is an ultrafast high-voltage silicon rectifier diode using Turbo 2 technology, rated for 600 V repetitive peak reverse voltage, 30 A average forward current, and 50 ns maximum reverse recovery time. It serves as a boost diode in continuous-conduction-mode PFC circuits and as a freewheeling diode in hard-switching SMPS topologies.
For engineers reviewing the STTH3006W datasheet, STTH3006W pinout, STTH3006W application, or STTH3006W equivalent, key selection criteria include reverse recovery time under dIF/dt stress, thermal resistance (1.1 °C/W junction-to-case), softness factor, conduction loss equation (P = 1.07 × IF(AV) + 0.011 × IF²(RMS)), and insulated DO-247 package compliance with 2500 VRMS isolation.
Technical Context
This device implements ST's Turbo 2 600 V process to achieve low Qrr and controlled soft recovery-critical for minimizing EMI and switching losses in high-frequency PFC stages. Its 1.10 V typical forward voltage at 150 °C and 30 A enables efficient conduction while maintaining low thermal resistance.
The DO-247 package provides 2500 VRMS insulation and 1.1 °C/W Rth(j-c), enabling direct heatsink mounting without additional isolation hardware. Dynamic performance is characterized at dIF/dt up to –100 A/µs, with IRM ≤ 11 A and trr ≤ 50 ns at Tj = 125 °C, VR = 400 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 600 V - Withstands repetitive reverse voltage up to 600 V, suitable for universal-input 85–265 VAC PFC front-ends. |
| IF(AV) | 30 A at TC = 115 °C - Sustains average forward current in high-power boost converters without derating below 115 °C case temperature. |
| trr (max) | 50 ns - Enables operation at switching frequencies >100 kHz with minimal turn-off loss and reduced snubber requirements. |
| VF (typ.) | 1.10 V at Tj = 150 °C, IF = 30 A - Low conduction loss improves efficiency in high-current, high-temperature power stages. |
| Rth(j-c) | 1.1 °C/W - Efficient heat transfer to heatsink supports compact thermal design in space-constrained industrial PSUs. |
| IRM (max) | 11 A at Tj = 125 °C - Limits peak reverse recovery current to reduce voltage overshoot across switching MOSFETs. |
| Softness factor | ≤0.6 at dIF/dt = 200 A/µs - Suppresses voltage ringing and EMI during diode turn-off in hard-switched topologies. |
Pinout & Package
The STTH3006W uses the insulated DO-247 package (ECOPACK® compliant, UL94 V0 epoxy), featuring a single-anode/single-cathode configuration with metal case acting as cathode terminal and electrically isolated from heatsink via 2500 VRMS dielectric strength.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (lead) | Forward current entry point | Connected to input side of boost inductor or switch node; must withstand surge current up to 300 A (10 ms sine). |
| Cathode (case) | Forward current exit / thermal path | Electrically isolated metal case serves as cathode and primary heatsink interface; requires torque of 0.55 N·m. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr ≤ 50 ns ensures minimal switching loss and compatibility with 100–300 kHz PFC controllers. |
| Low thermal resistance | Rth(j-c) = 1.1 °C/W enables direct-mount thermal management without insulating pads in high-power designs. |
| Controlled soft recovery | Softness factor ≤ 0.6 reduces EMI generation and voltage spikes during turn-off in hard-switched converters. |
| High surge capability | IFS M = 300 A (10 ms sine) supports robust startup and fault transient handling in industrial PSUs. |
| Insulated package | DOP3I variant offers 2500 VRMS isolation; DO-247 version maintains same isolation rating with optimized mechanical footprint. |
Applications
| Industrial Switch-Mode Power Supplies | Server & Telecom Rectification |
|---|---|
Use Scenario: High-efficiency 3–5 kW AC-DC front-end with active PFC stage operating in continuous conduction mode. IC Role / Device Role / Timing Role: Boost diode handling 30 A average current at 100 kHz switching frequency with minimal reverse recovery loss. Use Value: 50 ns trr and 1.10 V VF at 150 °C reduce total power loss by ≥12% versus standard ultrafast diodes in identical thermal conditions. | Use Scenario: Output rectification in high-density 48 V telecom PSUs requiring low-profile, high-reliability diodes. IC Role / Device Role / Timing Role: Freewheeling diode in synchronous rectified LLC resonant converter with fast dIF/dt transitions. Use Value: Soft recovery behavior limits voltage overshoot across primary-side MOSFETs, reducing need for clamping components. |
| Motor Drive DC Bus Protection | Renewable Energy Inverters |
Use Scenario: DC link protection in 10–15 kW variable-frequency drives with regenerative braking energy dissipation. IC Role / Device Role / Timing Role: Anti-parallel freewheeling diode across IGBTs, conducting reverse current during motor deceleration. Use Value: 175 °C max junction temperature and 300 A surge rating ensure reliability during repeated braking events without thermal runaway. | Use Scenario: Boost stage rectification in string inverters for photovoltaic systems with wide input voltage range (200–1000 VDC). IC Role / Device Role / Timing Role: High-voltage boost diode in interleaved PFC with 600 V blocking capability and low leakage (<25 µA at 25 °C). Use Value: Low IR at elevated temperature (800 µA at 150 °C) prevents thermal runaway in unventilated outdoor enclosures. |
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 MUR3060CT | 600 V, 30 A dual common-cathode TO-247; trr = 60 ns (max); Rth(j-c) = 1.5 °C/W | Requires dual-diode layout; higher trr increases switching loss in >150 kHz PFC | Prefer when dual-diode topology is fixed and thermal margin allows higher Rth(j-c) |
| Vishay VS-30E60-M3 | 600 V, 30 A TO-220AC; trr = 55 ns (max); no isolation; Rth(j-c) = 2.0 °C/W | Lacks 2500 VRMS isolation; unsuitable for direct heatsink mounting without insulator | Select only where isolation is handled externally and board space permits larger thermal pad area |
Compared with MUR3060CT and VS-30E60-M3, STTH3006W delivers lower trr, superior thermal resistance, and built-in isolation-making it optimal for compact, high-frequency, heatsink-integrated PFC and freewheeling designs where layout simplicity and EMI control are critical.
Availability
STTH3006W is available at Aetrix Electronics and suitable for industrial switch-mode power supplies, server & telecom rectification, motor drive DC bus protection, and renewable energy inverters requiring stable component supply and long-term manufacturability.
Supply support for STTH3006W 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.
The STTH series belongs to ST's high-voltage rectifier product line, engineered specifically for high-efficiency, high-frequency power conversion in PFC, SMPS, and motor drive applications where low Qrr, soft recovery, and thermal robustness are essential.
FAQ
What is the maximum allowable case temperature for continuous operation?
The STTH3006W supports continuous operation at TC = 115 °C for its full 30 A IF(AV) rating. Exceeding this temperature requires linear derating per Figure 1 in the datasheet; at TC = 100 °C, IF(AV) rises to ~33 A, while at TC = 85 °C it reaches ~36 A. Thermal design must maintain case temperature within this limit using the specified 0.55 N·m mounting torque and flat, clean heatsink surface.
Does STTH3006W require a heatsink in all applications?
Yes-due to its 30 A IF(AV) rating and 1.1 °C/W Rth(j-c), the STTH3006W must be mounted on a thermally adequate heatsink to prevent junction temperature exceeding 175 °C. Without heatsinking, even brief operation at rated current causes rapid thermal runaway. The DO-247 package is designed for direct attachment to heatsinks, and thermal interface material is not required if surface flatness and torque specifications are met.
How does the softness factor impact EMI in PFC designs?
A softness factor ≤0.6 means the diode's reverse recovery current decays gradually rather than abruptly, suppressing high-frequency spectral content above 30 MHz. This directly reduces conducted EMI in Class B PFC stages, often eliminating the need for additional ferrite beads or RC snubbers on the boost diode leg-verified in ST application note AN4745 for 3 kW PFC reference designs.
Can STTH3006W replace STTH3006PI in the same PCB footprint?
No-STTH3006W (DO-247) and STTH3006PI (DOP3I) have mechanically incompatible packages. DO-247 has a 5.0 mm lead pitch and 20.0 mm body length; DOP3I measures 15.5 mm × 21.1 mm with different mounting hole positions and torque specs (0.9–1.2 N·m vs. 0.55 N·m). Board redesign is required for substitution, though both share identical electrical characteristics and 2500 VRMS isolation.
STTH3006W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- DO-247-2 (Straight Leads)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 1.85 V @ 30 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 70 ns
- Current - Reverse Leakage @ Vr:
- 25 µA @ 600 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-247
- Operating Temperature - Junction:
- 175°C (Max)
STTH3006W FAQ
1.How can I place an order for STTH3006W through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH3006W 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 STTH3006W reliable?
The price and inventory of STTH3006W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH3006W is usually 5 days.
3.What payment methods are accepted for STTH3006W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH3006W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH3006W?
STTH3006W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH3006W 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 STTH3006W?
For technical support, including STTH3006W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH3006W requirements.
6.How does Aetrix verify that STTH3006W is sourced from the original manufacturer or authorized distributors?
All STTH3006W 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 STTH3006W meets industry standards.
7.What is the process for return or replacement of STTH3006W?
All STTH3006W units undergo pre-shipment inspection (PSI). If there is an issue with STTH3006W, 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 STTH3006W part is unused and in its original packaging.
Return procedure for STTH3006W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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