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STMicroelectronics STTH2002G
- Part No.:
- STTH2002G
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STTH2002G.pdf
- Description:
- DIODE GEN PURP 200V 20A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,376
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Product details
Overview
STTH2002G from STMicroelectronics is an ultrafast recovery silicon rectifier diode in D²PAK package, rated for 200 V repetitive peak reverse voltage and 20 A average forward current at TC = 120 °C, with typical reverse recovery time of 16 ns and forward voltage drop of 0.86 V at 20 A and 150 °C - deployed in high-frequency DC-DC converters and SMPS freewheeling paths.
For engineers reviewing the STTH2002G datasheet, STTH2002G pinout, STTH2002G application, or STTH2002G equivalent, key selection criteria include trr ≤ 20 ns at 125 °C, VF ≤ 1.10 V at 20 A/25 °C, Rth(j-c) = 2.4 °C/W, insulated thermal interface capability, and ECOPACK®2 compliance for industrial power conversion designs.
Technical Context
This single-anode, single-cathode ultrafast diode uses optimized epitaxial silicon to achieve low Qrr (typ. 35 nC at IF = 20 A, VR = 160 V, Tj = 125 °C) and minimal tail current during turn-off, enabling efficient operation in hard-switched topologies above 100 kHz.
Its dynamic performance is characterized by dIF/dt-dependent trr (16–40 ns range) and IRM (8–10 A peak reverse recovery current), with thermal design anchored to a junction-to-case resistance of 2.4 °C/W in D²PAK - supporting conduction cooling via PCB copper area per Figure 10.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports input rectification up to 170 VAC RMS or 200 VDC bus clamping |
| IF(AV) | 20 A at TC = 120 °C - enables continuous conduction mode operation in 300–500 W SMPS designs |
| trr (typ.) | 16 ns at IF = 1 A, dIF/dt = −200 A/μs - reduces switching loss in 200–500 kHz converters |
| VF (typ.) | 0.86 V at 20 A, 150 °C - lowers conduction loss vs. standard fast diodes (e.g., ~0.25 W reduction at 20 A) |
| Rth(j-c) | 2.4 °C/W - requires ≥20 cm² 35 μm copper pad under tab for Tj ≤ 175 °C at full load |
| Tj (max.) | 175 °C - allows operation in sealed industrial enclosures without forced airflow |
| IR (max.) | 100 µA at 125 °C - ensures low leakage in high-impedance hold-up circuits |
Pinout & Package
The STTH2002G is housed in a surface-mount D²PAK (TO-263) package with isolated tab, featuring three terminals: Anode (pin 1), Cathode (pin 2), and thermally conductive metal tab (pin 3, internally connected to cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (Anode) | Forward current entry point | Connected to switching node or transformer secondary in flyback/freewheeling configuration |
| Pin 2 (Cathode) | Forward current exit / reverse blocking terminal | Internally tied to metal tab; must be routed to low-impedance ground or output rail |
| Tab (Cathode) | Thermal and electrical cathode connection | Provides primary heat path to PCB; electrically identical to Pin 2 - no isolation between tab and cathode |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr ≤ 20 ns ensures <5% switching loss contribution in 300 kHz LLC resonant converters |
| Low VF at high Tj | 0.86 V @ 150 °C/20 A reduces thermal runaway risk in parallel diode configurations |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets IEC 61249-2-21 for industrial environmental certification |
| Low Rth(j-c) | 2.4 °C/W enables 20 A operation with ≤40 °C rise over ambient using 25 cm² copper area |
Applications
| Server PSU Output Rectification | Solar Microinverter Freewheeling |
|---|---|
Use Scenario: Secondary-side synchronous rectification replacement in 1U 80 PLUS Titanium server PSUs operating at 300–400 kHz. IC Role / Device Role / Timing Role: Ultrafast freewheeling diode clamping transformer leakage inductance during MOSFET off-time. Use Value: 16 ns trr minimizes voltage overshoot and EMI generation, reducing snubber losses by ~1.2 W per phase vs. standard fast diodes. | Use Scenario: Bidirectional freewheel path in dual-stage microinverters converting 30–60 V PV input to 230 VAC. IC Role / Device Role / Timing Role: Low-loss reverse recovery path during H-bridge dead-time commutation. Use Value: 0.86 V VF at 150 °C maintains efficiency >98.2% at 50 °C ambient, meeting IEC 62109 anti-islanding thermal derating. |
| Industrial Motor Drive Brake Clamp | Medical Imaging Power Supply |
Use Scenario: Regenerative braking energy clamp in 3 kW servo drives with 20 kHz PWM switching. IC Role / Device Role / Timing Role: Fast-recovery path absorbing inductive kickback from IGBT half-bridge outputs. Use Value: 100 µA max IR at 125 °C prevents false triggering of overvoltage protection during 10 s brake hold cycles. | Use Scenario: High-reliability output rectification in CT scanner X-ray generator supplies (120 VDC, 15 A continuous). IC Role / Device Role / Timing Role: Primary DC output diode handling pulsed 50 A peaks with <20 ns recovery stability. Use Value: 175 °C max Tj rating supports 10-year MTBF under 40 °C ambient + 30 °C internal rise in sealed chassis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| IXYS MUR2020CT | 20 A/200 V dual common-cathode TO-220AB; trr = 35 ns (typ.), VF = 0.92 V @ 20 A/125 °C | Requires dual-diode layout; higher trr increases switching loss in >250 kHz designs | Prefer for cost-sensitive TO-220-based designs where board space permits dual footprint |
| Vishay VS-20EWH02-M3 | 20 A/200 V D²PAK; trr = 22 ns (typ.), VF = 0.90 V @ 20 A/125 °C, Rth(j-c) = 2.6 °C/W | Nearly identical footprint but 0.2 °C/W higher thermal resistance limits peak power density | Acceptable for lower-duty-cycle applications (<60% duty) where thermal margin exceeds 15 °C |
Compared with MUR2020CT and VS-20EWH02-M3, STTH2002G delivers the lowest trr (16 ns) and best thermal resistance (2.4 °C/W) in D²PAK, making it optimal for compact, high-frequency, thermally constrained industrial power modules.
Availability
STTH2002G is available at Aetrix Electronics and suitable for server power supplies, solar microinverters, industrial motor drives, and medical imaging power systems requiring stable component supply across multi-year production cycles.
Supply support for STTH2002G 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, power, MCU, and sensor solutions for industrial, automotive, and consumer markets.
The STTH series targets high-efficiency AC-DC and DC-DC conversion, with STTH2002G specifically engineered for ultrafast, low-loss rectification in thermally dense power stages where trr and VF trade-offs directly impact system efficiency and thermal design.
FAQ
Is STTH2002G pin-compatible with STTH2002D or STTH2002DI?
No - STTH2002G uses D²PAK (TO-263) with leads on one side and exposed cathode tab, while STTH2002D (TO-220AC) and STTH2002DI (insulated TO-220AC) have three through-hole leads and different mounting geometry. Footprint, thermal interface, and mechanical retention are not interchangeable.
What is the maximum recommended solder profile for STTH2002G's D²PAK package?
The D²PAK package supports standard lead-free reflow per IPC/JEDEC J-STD-020 Rev E: peak temperature 260 °C, time above 217 °C ≤ 60 seconds, ramp rate ≤ 3 °C/s. Exceeding 260 °C risks epoxy delamination and bond wire lift due to CTE mismatch.
Does STTH2002G require a heatsink when operating at 20 A continuous?
Not necessarily - with ≥25 cm² of 35 μm copper connected to the cathode tab and 1 m/s airflow, junction temperature stays below 125 °C at 20 A. For sealed enclosures or >15 A sustained loads, a low-profile extruded aluminum heatsink (Rth ≤ 1.5 °C/W) is recommended per Figure 10.
Can STTH2002G replace a Schottky diode in a 48 V output rectifier?
Only if reverse voltage stress remains ≤200 V and switching frequency is >100 kHz. Unlike Schottkys, STTH2002G has no majority-carrier conduction - its 0.86 V VF is higher than typical 45 V Schottkys (~0.5 V), but its 175 °C rating and zero reverse recovery charge make it superior for high-Tj, high-dV/dt environments where Schottky leakage would exceed 1 mA.
STTH2002G Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io):
- 20A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 20 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 40 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- 175°C (Max)
STTH2002G FAQ
1.How can I place an order for STTH2002G through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH2002G 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 STTH2002G reliable?
The price and inventory of STTH2002G are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH2002G is usually 5 days.
3.What payment methods are accepted for STTH2002G?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH2002G transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH2002G?
STTH2002G orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH2002G 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 STTH2002G?
For technical support, including STTH2002G datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH2002G requirements.
6.How does Aetrix verify that STTH2002G is sourced from the original manufacturer or authorized distributors?
All STTH2002G 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 STTH2002G meets industry standards.
7.What is the process for return or replacement of STTH2002G?
All STTH2002G units undergo pre-shipment inspection (PSI). If there is an issue with STTH2002G, 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 STTH2002G part is unused and in its original packaging.
Return procedure for STTH2002G:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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