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STMicroelectronics STBR3012W
- Part No.:
- STBR3012W
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- DO-247-2 (Straight Leads)
- Datasheet:
-
STBR3012W.pdf
- Description:
- DIODE GEN PURP 1.2KV 30A DO247
- Quantity:
- Payment:
- Shipping:
Inventory:1,666
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Product details
Overview
STBR3012W from STMicroelectronics is a high-voltage ultra-fast recovery rectifier diode in DO-247 package, rated for 1200 V repetitive peak reverse voltage (VRRM), 30 A average forward current (IF(AV)), and 175 °C maximum junction temperature. It delivers ultra-low conduction losses (VF typ. 0.95 V at 30 A, Tj = 150 °C) and ultra-low reverse leakage (<2 µA at 25 °C), making it ideal as an input bridge diode in high-efficiency battery chargers and industrial SMPS.
For engineers reviewing the STBR3012W datasheet, STBR3012W pinout, STBR3012W application, or STBR3012W equivalent, key selection criteria include its 5.38 mm minimum creepage distance (anode-to-cathode, with top coating), 0.45 °C/W junction-to-case thermal resistance, ECOPACK®2 compliance, and suitability for high-reliability automotive and heavy-duty power conversion systems.
Technical Context
This device is a single-die, planar passivated silicon rectifier optimized for high-voltage bridge configurations. Its ultra-fast recovery behavior minimizes switching losses during commutation, while its rugged junction design ensures stable operation up to +175 °C junction temperature under sustained thermal stress.
The DO-247 package provides enhanced creepage (5.38 mm anode-to-cathode with top coating) and mechanical robustness for high-voltage isolation requirements per IEC 60664-1. Thermal performance is characterized by Rth(j-c) = 0.45 °C/W, enabling efficient conduction cooling in high-power density layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRRM | 1200 V - supports DC bus voltages up to 850 V in full-wave bridge configurations with safety margin |
| IF(AV) | 30 A at TC = 155 °C - enables continuous 30 A conduction in thermally managed PCB-mount applications |
| VF (typ.) | 0.95 V at IF = 30 A, Tj = 150 °C - reduces conduction loss to ~28.5 W per diode in bridge leg |
| Tj max | +175 °C - allows operation in under-hood automotive environments and sealed industrial enclosures |
| Rth(j-c) | 0.45 °C/W - permits >66 W dissipation with ≤30 °C case-to-ambient delta under forced conduction |
| CdA-K | 5.38 mm min. (with top coating) - meets reinforced insulation requirements for 1200 V systems per IEC 60664-1 |
| IR | <2 µA at VR = VRRM, Tj = 25 °C - ensures low standby power loss in offline converters |
Pinout & Package
The STBR3012W uses the DO-247 package: a through-hole, epoxy-molded, isolated-tab power diode package with UL94 V0 rating, 0.8 N·m recommended mounting torque, and 4.4 g unit weight. It features two terminals: Anode (A) and Cathode (K).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Positive input terminal | Connected to AC line or transformer secondary in bridge configuration; carries full forward current |
| Cathode (K) | Negative output terminal | Connected to DC bus return; defines output polarity and reverse blocking direction |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low conduction losses | VF = 0.95 V (typ.) at 30 A/150 °C enables <29 W conduction loss per diode in bridge leg |
| High junction temperature capability | Rated for continuous operation up to +175 °C junction temperature without derating |
| D²PAK HV creepage distance | 5.38 mm minimum anode-to-cathode creepage (with top coating) satisfies IEC 60664-1 reinforced insulation |
| ECOPACK®2 compliance | Meets RoHS, halogen-free, and lead-free soldering requirements per ST's environmental standard |
Applications
| Automotive On-Board Charger (OBC) | Industrial SMPS Input Bridge |
|---|---|
Use Scenario: High-efficiency AC/DC front-end in 6.6 kW OBCs operating in harsh under-hood environments. IC Role / Device Role / Timing Role: Input rectifier in full-wave bridge configuration handling 30 A RMS line current at 1200 V PIV. Use Value: 175 °C Tj rating and ultra-low VF ensure stable operation without thermal runaway during peak-load charging cycles. | Use Scenario: Primary-side rectification in 3–5 kW telecom and server PSUs requiring high reliability and long MTBF. IC Role / Device Role / Timing Role: High-voltage bridge diode delivering 30 A average forward current with minimal conduction loss. Use Value: 5.38 mm creepage distance and 0.45 °C/W Rth(j-c) support compact, fanless designs meeting IEC 62368-1 clearance requirements. |
| EV Charging Station Power Module | Renewable Energy Inverter Front-End |
Use Scenario: Rectification stage in modular 15–30 kW AC/DC power modules for fast-charging stations. IC Role / Device Role / Timing Role: High-current, high-voltage diode in multi-phase bridge topology with forced-air cooling. Use Value: Low IR (<2 µA at 25 °C) and stable VF across temperature reduce no-load losses and improve partial-load efficiency. | Use Scenario: Grid-tied solar inverter input stage converting 1000 V DC string voltage to intermediate bus. IC Role / Device Role / Timing Role: High-reliability rectifier in boost-stage input bridge handling intermittent surge currents up to 300 A. Use Value: 300 A non-repetitive surge rating (tp = 10 ms) withstands lightning-induced transients without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH3012W | Same DO-247 package, but standard recovery (not ultra-fast); VF = 1.15 V (typ.) at 30 A/150 °C | Higher conduction loss (~34.5 W), less suitable for high-frequency SMPS | Select STBR3012W where ultra-low VF and fast recovery are required for >100 kHz operation |
| IXYS MUR3012CT | Dual common-cathode TO-247 package; VF = 1.25 V (typ.) at 30 A/125 °C; lower Tj max (+175 °C not guaranteed) | Requires dual-diode layout; lacks DO-247 creepage advantage for single-device isolation | Prefer STBR3012W when single-diode, high-isolation, through-hole mounting is needed |
Compared with STTH3012W and MUR3012CT, STBR3012W uniquely combines ultra-low VF (0.95 V), ultra-fast recovery, DO-247 creepage (5.38 mm), and guaranteed +175 °C operation-making it optimal for space-constrained, high-reliability bridge rectifiers where thermal and isolation margins are critical.
Availability
STBR3012W is available at Aetrix Electronics and suitable for automotive on-board chargers, industrial SMPS input bridges, EV charging station power modules, and renewable energy inverter front-ends requiring stable component supply and long-term lifecycle support.
Supply support for STBR3012W 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 STBR3012W belongs to ST's high-voltage power rectifier product line, engineered specifically for high-reliability, high-efficiency bridge rectification in automotive and industrial power conversion systems demanding extended thermal and isolation margins.
FAQ
What is the maximum allowable mounting torque for the STBR3012W DO-247 package?
The recommended torque value for mounting the STBR3012W in DO-247 package is 0.8 N·m, with a maximum allowable torque of 1.0 N·m. Exceeding this limit risks damaging the internal bond wires or compromising the hermetic seal of the epoxy body, potentially leading to premature thermal failure or increased leakage current.
Does STBR3012W support surface-mount assembly?
No, STBR3012W is exclusively offered in the DO-247 through-hole package and is not designed for reflow or wave soldering. Its isolated metal tab requires mechanical screw mounting to a heatsink, and the leads are intended for axial insertion into plated-through holes on FR4 PCBs with adequate copper pour for thermal conduction.
How does the STBR3012W's creepage distance compare to standard D²PAK HV packages?
STBR3012W in DO-247 achieves 5.38 mm minimum anode-to-cathode creepage with top coating, exceeding the 3.48 mm creepage of D²PAK HV without coating. This higher isolation margin directly supports reinforced insulation in 1200 V systems per IEC 60664-1, whereas D²PAK HV variants require conformal coating to reach equivalent levels.
Can STBR3012W be used in parallel configurations for higher current handling?
Yes, STBR3012W supports parallel operation when matched devices are used with identical thermal mounting conditions and current-sharing resistors (0.01–0.02 Ω per diode). Its positive temperature coefficient of VF ensures inherent current balancing, but layout symmetry and thermal coupling must be carefully controlled to avoid localized hot spots above 175 °C.
STBR3012W Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- DO-247-2 (Straight Leads)
- Packaging:
- Tube
- Product Status:
- Active
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 1200 V
- Current - Average Rectified (Io):
- 30A
- Voltage - Forward (Vf) (Max) @ If:
- 1.3 V @ 30 A
- Speed:
- Standard Recovery >500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- -
- Current - Reverse Leakage @ Vr:
- 2 µA @ 1200 V
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- DO-247
- Operating Temperature - Junction:
- 175°C (Max)
STBR3012W FAQ
1.How can I place an order for STBR3012W through Aetrix?
Please submit a Request for Quotation (RFQ) for STBR3012W 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 STBR3012W reliable?
The price and inventory of STBR3012W are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STBR3012W is usually 5 days.
3.What payment methods are accepted for STBR3012W?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STBR3012W transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STBR3012W?
STBR3012W orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STBR3012W 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 STBR3012W?
For technical support, including STBR3012W datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STBR3012W requirements.
6.How does Aetrix verify that STBR3012W is sourced from the original manufacturer or authorized distributors?
All STBR3012W 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 STBR3012W meets industry standards.
7.What is the process for return or replacement of STBR3012W?
All STBR3012W units undergo pre-shipment inspection (PSI). If there is an issue with STBR3012W, 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 STBR3012W part is unused and in its original packaging.
Return procedure for STBR3012W:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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