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STMicroelectronics STTH1003SG-TR
- Part No.:
- STTH1003SG-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Datasheet:
-
STTH1003SG-TR.pdf
- Description:
- DIODE GEN PURP 300V 10A D2PAK
- Quantity:
- Payment:
- Shipping:
Inventory:8,308
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Product details
Overview
STTH1003SG-TR from STMicroelectronics is an ultrafast recovery power rectifier in DPAK package, designed for clamping in plasma display panel (PDP) energy recovery circuits. It delivers 10 A average forward current, 300 V repetitive peak reverse voltage, and 13 ns typical reverse recovery time at 25 °C, enabling high-efficiency switching in high-frequency PDP sustain drivers.
For engineers reviewing the STTH1003SG-TR datasheet, STTH1003SG-TR pinout, STTH1003SG-TR application, or STTH1003SG-TR equivalent, key selection criteria include trr ≤ 17 ns at 125 °C, VF ≤ 1.10 V at 10 A/125 °C, softness factor ≥ 0.3, surge capability up to 100 A (10 ms), and thermal resistance Rth(j-c) = 4 °C/W.
Technical Context
This rectifier employs a planar epitaxial silicon structure optimized for low Qrr and controlled soft recovery, minimizing EMI and voltage overshoot during turn-off in resonant clamp topologies. Its 175 °C maximum junction temperature and 4 °C/W junction-to-case thermal resistance support operation under sustained high-power PDP sustain pulses.
The device achieves a balance between conduction loss (VF = 0.9 V typ. @ 10 A/125 °C) and switching loss (trr = 13 ns typ. @ IF = 0.5 A), validated per IEC 60747-2 with pulse test conditions: tp = 380 µs (VF), tp = 5 ms (IR).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 10 A - Sustained forward current rating at Tc = 150 °C, square wave, δ = 0.5 |
| VRRM | 300 V - Maximum repetitive reverse voltage before breakdown, defining PDP sustain bus isolation margin |
| trr (typ) | 13 ns - Typical reverse recovery time at 25 °C, IF = 0.5 A, critical for <500 kHz clamp switching |
| VF (typ) | 0.9 V - Forward voltage drop at 10 A and 125 °C, directly determining conduction loss in energy recovery loop |
| Rth(j-c) | 4 °C/W - Junction-to-case thermal resistance in DPAK, enabling 25 W dissipation at ΔT = 100 K |
| Sfactor | ≥0.3 - Softness factor ensuring gradual current decay, reducing di/dt-induced ringing in high-dV/dt PDP circuits |
| IFS M | 100 A - Non-repetitive surge current (10 ms sine), supporting PDP ignition transients |
Pinout & Package
DPAK (TO-252) surface-mount package with exposed thermal pad on underside for PCB heat sinking; 3-terminal configuration: Anode, Cathode, and Thermal Pad (electrically connected to Cathode).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Input terminal for forward conduction path | Connected to PDP sustain bus node requiring clamping during flyback phase |
| Cathode (K) | Output terminal for forward conduction path | Connected to energy recovery capacitor and snubber network ground reference |
| Thermal Pad (Tab) | Thermal interface / Cathode extension | Must be soldered to large copper pour for thermal management; electrically tied to Cathode |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr ≤ 17 ns max at 125 °C ensures minimal switching loss in 200–500 kHz PDP sustain stages |
| Low leakage current | IR ≤ 100 µA at 125 °C/VRRM maintains high reverse blocking integrity over temperature |
| High surge capability | 100 A non-repetitive surge withstand supports PDP panel ignition without degradation |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets UL94 V0 flammability standard for consumer displays |
| High Tj rating | 175 °C maximum junction temperature enables reliable operation in thermally constrained PDP chassis |
Applications
| Plasma Display Panel (PDP) Energy Recovery | PDP Sustain Driver Clamping |
|---|---|
Use Scenario: Recovers inductive energy from sustain electrode windings during each half-cycle of AC sustain waveform. IC Role / Device Role / Timing Role: Ultrafast rectifier acting as synchronous clamp diode in resonant recovery circuit. Use Value: Reduces power loss by >35% vs. standard fast recovery diodes due to trr < 17 ns and VF < 1.1 V at 125 °C. | Use Scenario: Limits voltage overshoot across sustain driver MOSFETs during turn-off transitions. IC Role / Device Role / Timing Role: Clamp diode conducting only during reverse recovery tail to absorb stored inductor energy. Use Value: Soft recovery (Sfactor ≥ 0.3) suppresses ringing, eliminating need for external RC snubbers. |
| Industrial Inverter DC Bus Protection | High-Frequency Switching Power Supply Output Rectification |
Use Scenario: Protects IGBTs in motor drive inverters from inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Freewheeling diode with fast turn-off to minimize shoot-through risk in bridge legs. Use Value: 100 A surge rating handles transient overloads; 4 °C/W Rth(j-c) sustains 15 W continuous dissipation. | Use Scenario: Secondary-side rectification in telecom DC/DC converters operating at 300–500 kHz. IC Role / Device Role / Timing Role: Output rectifier minimizing conduction + switching losses in high-density SMPS. Use Value: VF = 0.9 V @ 10 A/125 °C lowers conduction loss; trr = 13 ns reduces EMI filter burden. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultrafast rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH1003D-TR | D²PAK package (Rth(j-c) = 2.5 °C/W); same electrical specs | Better thermal performance but larger footprint; requires different PCB layout | Select when board space allows and junction temperature must stay <150 °C under 20 W load |
| IXYS MUR1030CT | TO-220AB package; dual common-cathode configuration; trr = 35 ns typ. | Slower recovery increases switching loss in >250 kHz designs; not suitable for PDP clamp | Acceptable only in lower-frequency (<150 kHz), lower-density industrial supplies where size is secondary |
Compared with STTH1003SG-TR, STTH1003D-TR offers superior thermal dissipation but demands more PCB area, while MUR1030CT trades speed for legacy package compatibility-making the STTH1003SG-TR optimal for space-constrained, high-frequency PDP and telecom power stages.
Availability
STTH1003SG-TR is available at Aetrix Electronics and suitable for plasma display panel energy recovery, PDP sustain driver clamping, and high-frequency telecom power supply rectification requiring stable component supply and full production lifecycle support.
Supply support for STTH1003SG-TR 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, microcontroller, and sensor solutions for automotive, industrial, and consumer markets.
The STTH ultrafast rectifier product line targets high-efficiency energy recovery and clamping in plasma displays, industrial inverters, and high-frequency SMPS-emphasizing low Qrr, soft switching, and robust surge tolerance.
FAQ
What is the maximum allowable case temperature for continuous operation?
The STTH1003SG-TR is rated for IF(AV) = 10 A at Tc = 150 °C with square-wave excitation (δ = 0.5). Exceeding 150 °C case temperature reduces average current derating per Figure 1 in the datasheet; operation above 150 °C requires thermal modeling using Rth(j-c) = 4 °C/W and Tj(max) = 175 °C.
Is the thermal pad electrically isolated or connected to a pin?
The DPAK thermal pad is electrically connected to the cathode terminal. It must be soldered to a PCB copper pour tied to the cathode net. No isolation is provided; using it as a floating heatsink violates the device's internal construction and may cause failure.
How does softness factor affect circuit design?
A softness factor ≥ 0.3 means the reverse recovery current decays gradually rather than abruptly, reducing di/dt-induced voltage spikes and EMI. This allows smaller snubber components and eliminates need for gate resistors to dampen MOSFET oscillation in PDP clamp circuits.
Can STTH1003SG-TR replace STTH1003S in existing designs?
Yes-STTH1003SG-TR is the tape-and-reel version of STTH1003S with identical electrical, thermal, and mechanical specifications. The "G" suffix denotes green (halogen-free) ECOPACK®2 compliance; no layout or thermal changes are required for drop-in replacement.
STTH1003SG-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-263-3, D2PAK (2 Leads + Tab), TO-263AB
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 300 V
- Current - Average Rectified (Io):
- 10A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 10 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 35 ns
- Current - Reverse Leakage @ Vr:
- 10 µA @ 300 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- D2PAK
- Operating Temperature - Junction:
- 175°C (Max)
STTH1003SG-TR FAQ
1.How can I place an order for STTH1003SG-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1003SG-TR 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 STTH1003SG-TR reliable?
The price and inventory of STTH1003SG-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1003SG-TR is usually 5 days.
3.What payment methods are accepted for STTH1003SG-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1003SG-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1003SG-TR?
STTH1003SG-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1003SG-TR 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 STTH1003SG-TR?
For technical support, including STTH1003SG-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1003SG-TR requirements.
6.How does Aetrix verify that STTH1003SG-TR is sourced from the original manufacturer or authorized distributors?
All STTH1003SG-TR 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 STTH1003SG-TR meets industry standards.
7.What is the process for return or replacement of STTH1003SG-TR?
All STTH1003SG-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH1003SG-TR, 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 STTH1003SG-TR part is unused and in its original packaging.
Return procedure for STTH1003SG-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STTH1003SG-TR Tags
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