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STMicroelectronics STTH1003SB-TR
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- Part No.:
- STTH1003SB-TR
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Datasheet:
-
STTH1003SB-TR.pdf
- Description:
- DIODE GEN PURP 300V 10A DPAK
- Quantity:
- Payment:
- Shipping:
Inventory:5,100
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Product details
Overview
STTH1003SB-TR from STMicroelectronics is an ultrafast recovery power rectifier in DPAK package, rated for 300 V repetitive peak reverse voltage, 10 A average forward current, and 13 ns typical reverse recovery time. It is engineered for clamping in energy recovery blocks of plasma display panel (PDP) systems, delivering low conduction loss (VF = 0.9 V at 10 A, 125 °C) and high surge capability (100 A non-repetitive).
For engineers reviewing the STTH1003SB-TR datasheet, STTH1003SB-TR pinout, STTH1003SB-TR application, or STTH1003SB-TR equivalent, key selection criteria include trr < 17 ns at 125 °C, Rth(j-c) = 4 °C/W, softness factor ≥ 0.3, and compatibility with high-dI/dt switching (>200 A/µs) in resonant clamp topologies.
Technical Context
This device operates as a unidirectional high-speed switching diode optimized for zero-voltage switching (ZVS) energy recovery circuits. Its ultrafast trr (13–35 ns, depending on dI/dt and Tj) and low softness factor (0.3) minimize voltage overshoot and EMI during turn-off in PDP sustain drivers.
The DPAK thermally robust package enables junction temperatures up to 175 °C while maintaining low thermal resistance (Rth(j-c) = 4 °C/W). Forward voltage is tightly specified (0.90–1.10 V at 10 A, 125 °C), ensuring predictable conduction loss across industrial temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 300 V - Withstands repetitive reverse voltage up to 300 V without breakdown in PDP clamp circuits. |
| IF(AV) | 10 A - Sustains average forward current of 10 A at Tc = 150 °C, enabling compact heatsink design. |
| trr (typ) | 13 ns - Ultrafast recovery minimizes switching loss and ringing in 100–200 kHz PDP energy recovery stages. |
| VF (typ) | 0.9 V @ 10 A, 125 °C - Low forward drop reduces conduction loss to ~9 W per device under full load. |
| Rth(j-c) | 4 °C/W - Enables direct mounting to PCB copper pour or heatsink for thermal management in space-constrained PDP modules. |
| Sfactor | 0.3 - Soft recovery behavior suppresses voltage spikes and EMI during high-dI/dt turn-off transitions. |
| IFS M | 100 A - Handles short-duration surge currents common during PDP panel startup and fault conditions. |
Pinout & Package
DPAK (TO-252) surface-mount package with three terminals: anode, cathode, and exposed thermal pad (connected to cathode internally). The thermal pad must be soldered to a large copper area for optimal heat dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (Pin 1) | Forward current entry | Connected to switching node in clamp circuit; carries pulsed 10 A average current. |
| Cathode (Pin 2) | Forward current exit / reverse blocking terminal | Connected to DC bus or energy storage capacitor; sustains 300 V reverse bias. |
| Thermal Pad (Pin 3) | Thermal interface / cathode extension | Internally tied to cathode; requires minimum 100 mm² copper pour for Rth(j-c) = 4 °C/W performance. |
Key Features
| Feature | Design Value |
|---|---|
| Ultrafast recovery | trr = 13 ns typ. at 25 °C enables operation in >150 kHz resonant clamp converters without excessive loss. |
| Low leakage current | IR ≤ 10 µA at 25 °C and VR = 300 V ensures minimal standby power loss in high-impedance clamp nodes. |
| High junction temperature rating | Tj(max) = 175 °C supports reliable operation in sealed PDP enclosures with ambient >85 °C. |
| ECOPACK®2 compliance | Halogen-free, RoHS-compliant epoxy meets IEC 61249-2-21 and UL94 V0 flammability standards. |
| High surge capability | 100 A IFSM withstands repeated PDP panel ignition transients without degradation. |
Applications
| PDP Energy Recovery Clamp | Industrial Resonant DC-DC Converter |
|---|---|
Use Scenario: Plasma display panel sustain driver recovers inductive energy from scan/sustain transformers into a shared capacitor bank. IC Role / Device Role / Timing Role: Ultrafast rectifier performing synchronous clamp function during transformer reset phase. Use Value: trr ≤ 17 ns and Sfactor = 0.3 reduce voltage overshoot by >40% vs. standard fast recovery diodes, improving system reliability. | Use Scenario: High-efficiency 100–300 kHz LLC resonant converter for industrial power supplies. IC Role / Device Role / Timing Role: Secondary-side freewheeling diode in asymmetrical half-bridge topology with ZVS operation. Use Value: VF = 0.9 V at 125 °C lowers conduction loss by 18% compared to 1.1 V alternatives, increasing full-load efficiency by 0.7%. |
| Motor Drive Snubber Circuit | High-Speed Battery Protection Module |
Use Scenario: IGBT snubber network in servo drive inverters absorbing turn-off energy from motor windings. IC Role / Device Role / Timing Role: Fast-recovery clamp diode limiting voltage spike across IGBT during commutation. Use Value: 100 A IFSM and 4 °C/W Rth(j-c) allow handling of 200 µs transient surges without thermal runaway. | Use Scenario: Reverse-polarity and overvoltage protection in 24–48 V battery-powered test equipment. IC Role / Device Role / Timing Role: Series-connected ultrafast rectifier blocking reverse current and clamping transients. Use Value: IR ≤ 100 µA at 125 °C ensures <1 µW leakage power in always-on protection path, preserving battery life. |
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; larger footprint. | Better thermal performance but requires more PCB area; not suitable for height-constrained PDP modules. | Select when thermal margin is critical and board space permits larger package. |
| IXYS MUR1030CT | TO-220AB dual common-cathode configuration; trr = 35 ns (max); VF = 1.15 V @ 10 A. | Higher trr and VF increase switching/conduction losses; requires mechanical mounting and isolation. | Choose only if dual-diode topology is required and efficiency targets permit 3–5% lower efficiency. |
Compared with STTH1003D-TR and MUR1030CT, the STTH1003SB-TR uniquely balances ultrafast recovery (13 ns), low VF (0.9 V), and compact DPAK thermal performance (4 °C/W) for space- and efficiency-sensitive PDP and resonant converter designs.
Availability
STTH1003SB-TR is available at Aetrix Electronics and suitable for plasma display panel (PDP) energy recovery, industrial resonant DC-DC converters, and IGBT snubber circuits requiring stable component supply and long-term production continuity.
Supply support for STTH1003SB-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, microcontroller, power, and sensor solutions for automotive, industrial, and consumer markets.
The STTH series targets high-frequency power conversion applications demanding ultrafast switching, low loss, and rugged thermal performance-specifically optimized for energy recovery, clamping, and snubbing in PDP, UPS, and motor drive systems.
FAQ
What is the maximum recommended PCB copper area for the DPAK thermal pad?
The DPAK thermal pad requires a minimum 100 mm² exposed copper pour connected to internal ground or cathode plane. For optimal Rth(j-c) = 4 °C/W, use ≥6 thermal vias (0.3 mm diameter, filled or plated) spaced evenly under the pad and connected to inner-layer copper planes.
Does STTH1003SB-TR support bidirectional current flow?
No. STTH1003SB-TR is a unidirectional power rectifier. It conducts only from anode to cathode under forward bias and blocks current in reverse direction up to 300 V. Bidirectional operation would require external circuitry such as back-to-back MOSFETs or a dedicated H-bridge controller.
Can this diode replace a standard FR107 in a flyback converter?
Only with circuit re-evaluation. STTH1003SB-TR has lower VF and faster trr than FR107, but its higher dI/dt sensitivity (200 A/µs) may cause excessive ringing if snubbers are not adjusted. Also, its 300 V VRRM matches FR107, but thermal design must account for DPAK's different mounting requirements.
Is ECOPACK®2 compliance verified per shipment or per lot?
ECOPACK®2 compliance is certified per product family and manufacturing site-not per individual lot or shipment. ST maintains full material declarations and halogen-free process validation at the DPAK assembly facility, with documentation available via ST's Quality Portal upon NDA registration.
STTH1003SB-TR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- ECOPACK®2
- Package/Case:
- TO-252-3, DPAK (2 Leads + Tab), SC-63
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- DPAK
- Operating Temperature - Junction:
- 175°C (Max)
STTH1003SB-TR FAQ
1.How can I place an order for STTH1003SB-TR through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH1003SB-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 STTH1003SB-TR reliable?
The price and inventory of STTH1003SB-TR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH1003SB-TR is usually 5 days.
3.What payment methods are accepted for STTH1003SB-TR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH1003SB-TR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH1003SB-TR?
STTH1003SB-TR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH1003SB-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 STTH1003SB-TR?
For technical support, including STTH1003SB-TR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH1003SB-TR requirements.
6.How does Aetrix verify that STTH1003SB-TR is sourced from the original manufacturer or authorized distributors?
All STTH1003SB-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 STTH1003SB-TR meets industry standards.
7.What is the process for return or replacement of STTH1003SB-TR?
All STTH1003SB-TR units undergo pre-shipment inspection (PSI). If there is an issue with STTH1003SB-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 STTH1003SB-TR part is unused and in its original packaging.
Return procedure for STTH1003SB-TR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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