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STMicroelectronics STTH1302CG
- Part No.:
- STTH1302CG
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STTH1302CG.pdf
- Description:
- DIODE ARRAY GP 200V 6.5A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,599
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Product details
Overview
STTH1302CG from STMicroelectronics is a dual-center-tap ultrafast rectifier diode in D²PAK package, rated for 200 V repetitive peak reverse voltage, 2 × 6.5 A average forward current per diode, and 16 ns typical reverse recovery time. It delivers low conduction loss (VF = 0.81 V typ. at 125 °C, 6.5 A) and high surge capability (70 A non-repetitive), optimized for low-voltage, high-frequency SMPS and DC-DC converters.
For engineers reviewing the STTH1302CG datasheet, STTH1302CG pinout, STTH1302CG application, or STTH1302CG equivalent, key selection criteria include dual-diode thermal coupling behavior, junction-to-case thermal resistance (1.9 °C/W total), low trr stability across dIF/dt (10–1000 A/µs), and ECOPACK®2-compliant packaging for industrial power supplies.
Technical Context
This dual-center-tap configuration enables shared cathode topology ideal for synchronous rectification and center-tapped transformer secondary windings. Each diode operates independently with validated 175 °C max junction temperature and 3 °C/W junction-to-case thermal resistance per diode.
Dynamic performance is characterized under standardized conditions: trr measured at IF = 0.5 A, Irr = 0.25 A, IR = 1 A; Qrr and IRM scale predictably with dIF/dt (10–1000 A/µs); VF exhibits strong temperature dependence-dropping from 1.10 V (25 °C) to 0.81 V (125 °C) at 6.5 A.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports input stages up to 200 V DC or rectified AC without breakdown |
| IF(AV) per diode | 6.5 A - defines continuous DC output current capability per leg in center-tapped topologies |
| trr (typ) | 16 ns - enables switching frequencies >500 kHz with minimal reverse recovery loss |
| VF (typ, 125 °C) | 0.81 V - reduces conduction loss by ~27% vs. 25 °C value, critical for thermally constrained designs |
| Rth(j-c) total | 1.9 °C/W - allows 37 W total dissipation at 100 K ΔT (junction-to-case), assuming both diodes active |
| IFS M | 70 A - withstands short-duration inrush or fault currents in DC-DC startup or overload |
| Tj (max) | 175 °C - permits operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
D²PAK (TO-263AB) package with exposed metal tab for thermal conduction; 3-pin configuration: two anodes (A1, A2) and one common cathode (K). Mounting requires soldered tab contact to PCB copper pour for effective heat transfer.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A1 | Anode of Diode 1 | Connects to first half of center-tapped winding or independent input path |
| A2 | Anode of Diode 2 | Connects to second half of center-tapped winding or alternate input path |
| K | Common Cathode | Output node for full-wave rectification; electrically and thermally tied to exposed tab |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | 16 ns trr enables high-frequency operation with reduced EMI and switching loss |
| Dual-diode thermal coupling | Rth(c) = 0.8 °C/W allows accurate junction temperature estimation when both diodes conduct simultaneously |
| High surge rating | 70 A IFSM supports robustness against line transients and inrush in offline SMPS |
| ECOPACK®2 compliance | Meets RoHS and halogen-free requirements without compromising thermal or electrical performance |
Applications
| Server PSU Rectification | Industrial DC-DC Converter |
|---|---|
Use Scenario: High-efficiency 48 V input to 12 V output DC-DC stage using center-tapped transformer. IC Role / Device Role / Timing Role: Dual ultrafast rectifier providing synchronous full-wave output with minimal dead-time loss. Use Value: 16 ns trr and 0.81 V VF at 125 °C reduce conduction + recovery losses by ≥18% vs. standard fast recovery diodes. | Use Scenario: 24 V DC input to isolated 5 V/3.3 V outputs in programmable logic controller (PLC) power module. IC Role / Device Role / Timing Role: Center-tapped secondary-side rectifier enabling compact transformer design and tight regulation. Use Value: 175 °C Tj(max) and 1.9 °C/W total Rth(j-c) sustain 13 A device-level current in convection-cooled enclosures. |
| Solar Microinverter Freewheeling | Automotive On-Board Charger (OBC) Polarity Protection |
Use Scenario: Bidirectional freewheeling path in H-bridge inverter stage handling 20 kHz PWM. IC Role / Device Role / Timing Role: Low-loss reverse recovery path minimizing voltage spikes during commutation. Use Value: Stable trr <25 ns across 25–125 °C ensures predictable snubber sizing and EMI control. | Use Scenario: Input polarity protection for 3.3 kW OBC accepting ±12 V misconnection during service. IC Role / Device Role / Timing Role: Reverse-biased blocking element with 200 V VRRM and 60 µA IR at 125 °C. Use Value: Low leakage (<60 µA at 125 °C) prevents standby power drain while maintaining fail-safe isolation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast dual-center-tap rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1202D | Same D²PAK package, but single-diode configuration; no shared cathode topology | Requires external cathode tie for dual use; lacks integrated thermal coupling model | Select only if discrete layout control or separate thermal management is required |
| IXYS MBR20200CT | 200 V, 2 × 10 A rating; higher IF(AV) but 35 ns trr (typ) - slower recovery | Better current handling but unsuitable for >300 kHz operation due to higher Qrr | Prefer for lower-frequency, higher-current applications where thermal margin exceeds 175 °C |
Compared with STTH1202D and MBR20200CT, STTH1302CG uniquely combines dual-diode integration, 16 ns trr, and validated thermal coupling-making it optimal for compact, high-frequency center-tapped SMPS where layout area and thermal predictability are critical.
Availability
STTH1302CG is available at Aetrix Electronics and suitable for server power supplies, industrial DC-DC converters, solar microinverters, and automotive on-board chargers requiring stable component supply and long-term industrial lifecycle support.
Supply support for STTH1302CG 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 power conversion, with STTH1302CG specifically engineered for ultrafast, thermally coupled dual-diode rectification in space-constrained, high-frequency SMPS architectures.
FAQ
What is the maximum allowable case temperature for continuous operation?
The STTH1302CG has a maximum junction temperature of 175 °C and a total junction-to-case thermal resistance of 1.9 °C/W. With 37 W total dissipation limit and typical ambient conditions, the case temperature must remain ≤100 °C to maintain safe margin-verified via thermal simulation using Rth(j-c) and measured power loss from VF and trr data.
Can STTH1302CG be used in parallel with another identical device?
No-parallel connection is not recommended. The device uses a shared cathode and internal thermal coupling; paralleling introduces uncontrolled current imbalance and thermal runaway risk. For higher current, use a single higher-rated part or redesign with interleaved phases instead of device paralleling.
Is the D²PAK footprint compatible with standard TO-263 reflow profiles?
Yes-the D²PAK outline matches JEDEC MO-211, and ST specifies compatibility with standard lead-free reflow profiles (peak 260 °C, 60 s max). The exposed tab requires ≥1 cm² copper pour and ≥6x thermal vias (0.3 mm diameter) for optimal thermal performance per ST's AN4199 guidelines.
How does reverse recovery charge (Qrr) vary with temperature and dIF/dt?
Qrr increases linearly with dIF/dt and decreases slightly with rising junction temperature-measured at 10–1000 A/µs and 25–125 °C. At 125 °C and 100 A/µs, Qrr is ~35 nC (vs. ~45 nC at 25 °C), directly reducing turn-off loss in high-dI/dt applications like LLC resonant converters.
STTH1302CG Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tube
- Product Status:
- Obsolete
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 6.5A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 6.5 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 25 ns
- Current - Reverse Leakage @ Vr:
- 6 µA @ 200 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
STTH1302CG FAQ
1.How can I place an order for STTH1302CG through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1302CG 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 STTH1302CG reliable?
The price and inventory of STTH1302CG are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1302CG is usually 5 days.
3.What payment methods are accepted for STTH1302CG?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1302CG transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1302CG?
STTH1302CG orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1302CG 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 STTH1302CG?
For technical support, including STTH1302CG datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1302CG requirements.
6.How does Aetrix verify that STTH1302CG is sourced from the original manufacturer or authorized distributors?
All STTH1302CG 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 STTH1302CG meets industry standards.
7.What is the process for return or replacement of STTH1302CG?
All STTH1302CG units undergo pre-shipment inspection (PSI). If there is an issue with STTH1302CG, 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 STTH1302CG part is unused and in its original packaging.
Return procedure for STTH1302CG:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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