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STMicroelectronics STTH602CT
- Part No.:
- STTH602CT
- Manufacturer:
- STMicroelectronics
- Category:
- Diode Arrays
- Package:
- TO-220-3
- Datasheet:
-
STTH602CT.pdf
- Description:
- DIODE ARRAY GP 200V 3A TO-220
- Quantity:
- Payment:
- Shipping:
Inventory:1,703
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Product details
Overview
STTH602CT from STMicroelectronics is a dual-center-tap ultrafast recovery diode in TO-220FPAB insulated package, rated for 200 V repetitive peak reverse voltage and 3 A average forward current per diode at Tc = 150 °C. It delivers low forward voltage (0.80 V typ at 3 A, 150 °C), 14 ns typical reverse recovery time, and high surge capability (60 A, 10 ms), targeting high-frequency DC–DC converters and SMPS freewheeling paths.
For engineers reviewing the STTH602CT datasheet, STTH602CT pinout, STTH602CT application, or STTH602CT equivalent, key selection criteria include thermal resistance (Rth(j-c) = 7.5 °C/W per diode), insulated case construction, dual-diode center-tap topology, and validated performance at 125–175 °C junction temperature under fast dIF/dt conditions.
Technical Context
This device integrates two independent ultrafast switching diodes sharing a common cathode terminal in a single insulated TO-220FPAB package. Its design centers on minimizing conduction and switching losses in high-frequency power conversion, enabled by low QRR (typical 25 nC at IF = 3 A, dIF/dt = 200 A/µs, VR = 160 V, Tj = 125 °C) and tight trr distribution (14–20 ns).
The insulated case allows direct mounting to heatsinks without electrical isolation hardware, while thermal coupling between diodes (Rth(c) = 3 °C/W) requires derating when both diodes operate simultaneously. Junction-to-case thermal resistance is specified per diode (7.5 °C/W) and per device (5.25 °C/W), enabling accurate loss-based thermal modeling in dual-switch topologies.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 200 V - supports input stages up to 200 V DC bus in offline SMPS and industrial DC–DC converters |
| IF(AV) per diode | 3 A at Tc = 150 °C - defines continuous output current capability per leg in center-tap rectifier configurations |
| trr (typ) | 14 ns - enables operation above 200 kHz with minimal switching loss and EMI generation |
| VF (typ) | 0.80 V at 3 A, 150 °C - reduces conduction loss by ~25% vs. standard FRDs at same current and temperature |
| Rth(j-c) per diode | 7.5 °C/W - determines minimum heatsink requirement for 3 W dissipation per diode at 150 °C case temperature |
| IFS M | 60 A (10 ms, sinusoidal) - withstands startup surges and short-circuit transients in regulated power supplies |
| Tj(max) | 175 °C - permits reliable operation in sealed enclosures or high-ambient industrial environments |
Pinout & Package
STTH602CT uses the TO-220FPAB package: an insulated, epoxy-molded variant of TO-220 with integral plastic barrier between leads and metal tab, rated UL94 V0. The metal tab is electrically isolated and serves as thermal interface only.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode 1 (Lead 1) | Input terminal for first diode | Connects to transformer secondary or switch node in center-tap forward/flyback designs |
| Cathode (Center Tab) | Common cathode for both diodes | Electrically tied to output rail; must be thermally coupled to heatsink via insulated mounting |
| Anode 2 (Lead 2) | Input terminal for second diode | Completes center-tap rectifier path; phase-opposed to Anode 1 in push-pull topologies |
Key Features
| Feature | Design Value |
|---|---|
| Insulated TO-220FPAB package | Eliminates need for insulating washers or pads when mounting to grounded heatsinks |
| Ultrafast trr ≤ 20 ns | Reduces reverse recovery charge (QRR ≈ 25 nC) and associated turn-off losses in hard-switched converters |
| High Tj(max) = 175 °C | Enables compact thermal design in space-constrained industrial power modules |
| Low VF = 0.80 V (150 °C) | Lowers conduction loss by >0.25 W per diode vs. legacy 1.05 V FRDs at 3 A, improving efficiency at light-to-moderate loads |
| Center-tap dual-diode configuration | Supports single-package implementation of full-wave center-tap rectifiers, reducing PCB footprint and assembly cost |
Applications
| Server PSU Rectification | Industrial DC–DC Converter |
|---|---|
Use Scenario: High-efficiency 48 V input, 12 V output server power supply using center-tap forward topology. IC Role / Device Role / Timing Role: Dual ultrafast rectifier handling synchronous secondary-side conduction with 200 kHz switching frequency. Use Value: 14 ns trr minimizes dead-time losses and reduces snubber component stress, enabling >94% efficiency at full load. | Use Scenario: Isolated 24 V to 5 V/3.3 V DC–DC module for PLC I/O modules operating in 70 °C ambient. IC Role / Device Role / Timing Role: Center-tap output rectifier in flyback converter with reinforced insulation requirements. Use Value: Insulated TO-220FPAB package meets creepage/clearance standards without additional isolation hardware. |
| Solar Microinverter Freewheeling | Automotive Onboard Charger (OBC) Auxiliary Supply |
Use Scenario: Bidirectional half-bridge inverter stage requiring fast-recovery freewheeling paths during zero-voltage switching transitions. IC Role / Device Role / Timing Role: Low-QRR freewheeling diode clamping inductive energy during gate drive dead time. Use Value: 25 nC QRR at 125 °C ensures <100 ns reverse recovery window, preventing shoot-through in 100 kHz+ ZVS designs. | Use Scenario: Auxiliary 12 V supply derived from main OBC DC link (400 V) using flyback converter with reinforced isolation. IC Role / Device Role / Timing Role: Output rectifier in isolated auxiliary flyback supplying MCU, gate drivers, and sensors. Use Value: 175 °C max junction temperature supports operation adjacent to main power stage without thermal throttling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast dual-diode rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH602C | TO-220AB package, non-insulated tab (Rth(j-c) = 5 °C/W per diode), higher thermal conductivity but requires insulator kit | Suitable where heatsink is floating or isolation is handled externally; lower thermal resistance improves power density | Select when board-level isolation is already implemented and thermal margin is critical |
| STTH8R02CT | Same TO-220FPAB package, 8 A total IF(AV), higher VF (0.92 V typ), 25 ns trr | Higher current rating supports >6 A output designs; slower recovery increases switching loss above 150 kHz | Select when output current exceeds 6 A and switching frequency remains below 150 kHz |
Compared with STTH602C and STTH8R02CT, STTH602CT uniquely balances insulation, thermal performance (7.5 °C/W), and ultrafast recovery (14 ns) for compact, high-frequency 3–6 A center-tap rectifiers where safety isolation and EMI control are prioritized.
Availability
STTH602CT is available at Aetrix Electronics and suitable for server power supplies, industrial DC–DC converters, solar microinverters, and automotive onboard charger auxiliary supplies requiring stable component supply and long-term manufacturability.
Supply support for STTH602CT 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, digital, and mixed-signal ICs and discrete power devices for industrial, automotive, and consumer markets.
The STTH series targets high-efficiency, high-reliability power conversion with emphasis on ultrafast recovery, high-temperature operation, and robust surge handling-specifically engineered for next-generation SMPS and renewable energy inverters.
FAQ
What is the maximum recommended mounting torque for STTH602CT?
The manufacturer specifies a recommended torque value of 0.8 N·m and a maximum torque of 1.0 N·m for the mounting screw. Exceeding 1.0 N·m risks cracking the epoxy package or deforming the leadframe, compromising thermal performance and mechanical reliability. Use a calibrated torque screwdriver and verify flatness of the heatsink surface before installation.
Can STTH602CT be used in non-center-tap topologies like bridge rectifiers?
No-STTH602CT integrates two anodes and one shared cathode; it lacks independent cathodes required for full-bridge operation. It is functionally limited to center-tap rectifiers, freewheeling paths, or polarity protection where dual-anode/single-cathode topology matches the circuit. For bridge rectification, discrete diodes or dedicated bridge packages (e.g., STTH8S06) must be used.
How does the insulated TO-220FPAB package affect thermal performance versus TO-220AB?
The TO-220FPAB's insulation layer increases junction-to-case thermal resistance to 7.5 °C/W per diode (vs. 5.0 °C/W for TO-220AB), resulting in ~50% higher temperature rise for the same power dissipation. This trade-off is intentional: the insulation eliminates external isolators but requires ~20% larger heatsink area or lower ambient temperature to maintain equivalent Tj.
Is STTH602CT compliant with lead-free soldering standards?
Yes-STTH602CT is supplied in ECOPACK® packaging with lead-free second-level interconnects, compliant with JEDEC JESD97. The inner box label specifies maximum soldering profile limits (e.g., peak temperature ≤ 260 °C, 10 s max), and the device meets RoHS Directive 2011/65/EU. No special reflow adjustments beyond standard Pb-free profiles are required.
STTH602CT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-3
- Packaging:
- Tube
- Product Status:
- Active
- Diode Configuration:
- 1 Pair Common Cathode
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 200 V
- Current - Average Rectified (Io) (per Diode):
- 3A
- Voltage - Forward (Vf) (Max) @ If:
- 1.1 V @ 3 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 30 ns
- Current - Reverse Leakage @ Vr:
- 3 µA @ 200 V
- Operating Temperature - Junction:
- 175°C (Max)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220
STTH602CT FAQ
1.How can I place an order for STTH602CT through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH602CT 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 STTH602CT reliable?
The price and inventory of STTH602CT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH602CT is usually 5 days.
3.What payment methods are accepted for STTH602CT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH602CT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH602CT?
STTH602CT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH602CT 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 STTH602CT?
For technical support, including STTH602CT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH602CT requirements.
6.How does Aetrix verify that STTH602CT is sourced from the original manufacturer or authorized distributors?
All STTH602CT 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 STTH602CT meets industry standards.
7.What is the process for return or replacement of STTH602CT?
All STTH602CT units undergo pre-shipment inspection (PSI). If there is an issue with STTH602CT, 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 STTH602CT part is unused and in its original packaging.
Return procedure for STTH602CT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH602CT Tags
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BAT54S-7-F
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