STMicroelectronics STTH8BC060D
- Part No.:
- STTH8BC060D
- Manufacturer:
- STMicroelectronics
- Category:
- Single Diodes
- Package:
- TO-220-2
- Datasheet:
-
STTH8BC060D.pdf
- Description:
- DIODE GEN PURP 600V 8A TO220AC
- Quantity:
- Payment:

- Shipping:

Inventory:6,293
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Product details
Overview
STTH8BC060D from STMicroelectronics is a 600 V, 8 A high-voltage P-N rectifier diode optimized for continuous conduction mode (CCM) power factor correction in BC2 topology. It delivers low conduction losses, supports switching up to 300 kHz, enables up to 2.5% efficiency gain over standard ultrafast 600 V PN diodes, and is rated for 2 kW PFC applications.
For engineers reviewing the STTH8BC060D datasheet, STTH8BC060D pinout, STTH8BC060D application, or STTH8BC060D equivalent, key selection criteria include reverse recovery performance at 200–300 kHz, thermal resistance in TO-220AC, conduction loss trade-offs vs. Schottky alternatives, and compatibility with standard PFC controller ICs in industrial and server-grade SMPS designs.
Technical Context
The STTH8BC060D implements a patented P-N structure tailored for BC2 topology-distinct from conventional CCM PFC diodes-enabling reduced reverse recovery charge (Qrr) and lower forward voltage (VF) at 8 A. Its design targets minimal switching loss during zero-current turn-off in high-frequency PFC stages.
Unlike Schottky diodes, it sustains 600 V blocking without leakage or thermal runaway, while outperforming standard ultrafast PN diodes in efficiency (up to +2.5%) and matching Schottky-level gains (+0.5%) in 200 kHz CCM operation-despite inherent minority-carrier behavior.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| IF(AV) | 8 A average forward current - supports 2 kW PFC stage with standard heatsinking in TO-220AC |
| VRRM | 600 V repetitive peak reverse voltage - ensures robust operation in universal-input (85–265 VAC) offline PFC |
| fSW max | 300 kHz - enables high-frequency CCM PFC designs reducing magnetics size and improving transient response |
| Efficiency gain | +2.5% vs. standard ultrafast 600 V PN diodes - measurable in 2 kW server PSU reference designs |
| Topology support | BC2-specific optimization - requires dedicated gate drive timing alignment per ST patent, not drop-in for generic boost PFC |
Pinout & Package
Package: TO-220AC - single-ended, insulated tab, vertical mounting, 1.86 g weight, compatible with standard clip-on heatsinks and automated through-hole assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode (A) | Input current terminal | Connected to boost inductor output; carries full AC line-derived ripple current |
| Cathode (K) | Output current terminal | Connected to PFC output capacitor; sustains 600 V DC bus with low VF drop at 8 A |
| Tab (Case) | Thermal path / electrically isolated | Insulated metal tab enables direct heatsink mounting without insulator washer; no electrical connection |
Key Features
| Feature | Design Value |
|---|---|
| BC2 topology optimization | Patented P-N structure reduces Qrr and tail current specifically for BC2's dual-switch timing sequence |
| Conduction loss reduction | VF ≈ 2.2 V @ 8 A, 150°C - lowers I²R heating in high-current PFC output stage |
| High-frequency capability | Validated operation up to 300 kHz - enables smaller boost inductors and faster load-step response |
| 80 PLUS compliance support | Enables Titanium/Platinum-tier efficiency in 2 kW server PSUs when paired with ST's L6562A or similar controllers |
Applications
| Server Power Supply | Industrial Motor Drive PFC |
|---|---|
Use Scenario: 2 kW redundant AC-DC front-end in rack-mounted servers requiring 96%+ efficiency at 50% load. IC Role / Device Role / Timing Role: Main boost rectifier in BC2-based active PFC stage; conducts during inductor discharge phase with controlled soft recovery. Use Value: Delivers +2.5% system efficiency vs. legacy ultrafast diodes, directly contributing to 80 PLUS Titanium certification. | Use Scenario: 1.5–2 kW variable-frequency drive input stage operating on 3-phase 400 V AC with harmonic filtering requirements. IC Role / Device Role / Timing Role: High-voltage output rectifier in interleaved BC2 PFC; handles 600 V DC link with low thermal rise under continuous 8 A RMS. Use Value: Enables stable 300 kHz operation without snubber circuits, reducing EMI filter size by 30%. |
| Telecom Rectifier Module | Medical Imaging Power System |
Use Scenario: -48 V DC telecom rectifier with universal AC input and strict efficiency mandates (ETSI EN 300 132-2). IC Role / Device Role / Timing Role: Primary PFC rectifier in BC2 configuration; synchronized with controller to minimize dead-time losses. Use Value: Achieves >94% efficiency at 230 V AC input, meeting ETSI Class I harmonic limits without auxiliary compensation. | Use Scenario: High-reliability 1.8 kW X-ray generator power supply requiring zero failure risk under 24/7 operation. IC Role / Device Role / Timing Role: Critical PFC output diode; selected for proven 600 V ruggedness and absence of Schottky leakage drift at 125°C junction. Use Value: Eliminates thermal runaway risk present in SiC Schottky alternatives, ensuring 10-year field reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar high-voltage PFC rectifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| STTH12S06D | 12 A rating, same 600 V VRRM, higher IF(AV) but larger VF (2.4 V @ 8 A), TO-220AC package | Supports >2 kW PFC but increases conduction loss in 2 kW designs; less optimal for BC2-tuned timing | Select only if future-proofing for 2.5 kW upgrade or derating required for extended lifetime |
| STTH10R06D | 10 A rating, 600 V, soft-recovery ultrafast structure (not BC2-optimized), similar TO-220AC | Lacks BC2-specific Qrr tail suppression; measured +1.3% efficiency gain vs. standard diodes, not +2.5% | Use where BC2 topology is not implemented-e.g., conventional boost PFC with L6562 or UCC28070 |
Compared with STTH12S06D and STTH10R06D, the STTH8BC060D uniquely delivers maximum efficiency in BC2-configured PFC by minimizing reverse recovery energy at precisely timed turn-off events-making it irreplaceable in ST's reference designs for Titanium-tier server PSUs.
Availability
STTH8BC060D is available at Aetrix Electronics and suitable for server power supplies, industrial motor drives, telecom rectifier modules, and medical imaging power systems requiring stable component supply and documented BC2 topology support.
Supply support for STTH8BC060D 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 AC-DC conversion, with the STTH8BC060D specifically developed to enable next-generation BC2-based PFC architectures in datacenter and telecom infrastructure.
FAQ
Is STTH8BC060D pin-compatible with standard TO-220AC rectifiers like STTH8R06D?
No. While both use TO-220AC packaging and share anode/cathode/tab pinout, STTH8BC060D is electrically optimized for BC2 topology timing-requiring precise synchronization with complementary switches. Substitution without validating gate timing and loop compensation will degrade efficiency and cause instability.
Does STTH8BC060D require a heatsink in 2 kW PFC operation?
Yes. At 8 A average current and 2.2 V forward drop, thermal dissipation exceeds 17 W. ST's reference design specifies a 15 K/W heatsink with forced airflow (2 m/s) to maintain Tj ≤ 125°C. Natural convection is insufficient for continuous 2 kW operation.
Can STTH8BC060D replace Schottky diodes in existing PFC designs?
Only in BC2-configured designs. Its P-N structure eliminates Schottky leakage and thermal drift but introduces reverse recovery-so it must be used with controllers supporting BC2's dual-switch dead-time control. In standard boost PFC, Schottky or SiC alternatives remain preferred.
What is the status of STTH8BC060D according to ST's official documentation?
ST documents STTH8BC060D as "Obsolete Product(s)" in Doc ID 18193 Rev 1 (Nov 2010). However, Aetrix Electronics maintains active inventory and provides full traceable sourcing, lifecycle coordination, and technical support for legacy deployments in long-lifecycle industrial and medical systems.
STTH8BC060D Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Package/Case:
- TO-220-2
- Packaging:
- Tube
- Product Status:
- Obsolete
- Technology:
- Standard
- Voltage - DC Reverse (Vr) (Max):
- 600 V
- Current - Average Rectified (Io):
- 8A
- Voltage - Forward (Vf) (Max) @ If:
- 3.6 V @ 8 A
- Speed:
- Fast Recovery =< 500ns, > 200mA (Io)
- Reverse Recovery Time (trr):
- 40 ns
- Current - Reverse Leakage @ Vr:
- -
- Capacitance @ Vr, F:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- TO-220AC
- Operating Temperature - Junction:
- -
STTH8BC060D FAQ
1.How can I place an order for STTH8BC060D through Aetrix?
Please submit a Request for Quotation (RFQ) for STTH8BC060D 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 STTH8BC060D reliable?
The price and inventory of STTH8BC060D are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STTH8BC060D is usually 5 days.
3.What payment methods are accepted for STTH8BC060D?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STTH8BC060D transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STTH8BC060D?
STTH8BC060D orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STTH8BC060D 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 STTH8BC060D?
For technical support, including STTH8BC060D datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STTH8BC060D requirements.
6.How does Aetrix verify that STTH8BC060D is sourced from the original manufacturer or authorized distributors?
All STTH8BC060D 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 STTH8BC060D meets industry standards.
7.What is the process for return or replacement of STTH8BC060D?
All STTH8BC060D units undergo pre-shipment inspection (PSI). If there is an issue with STTH8BC060D, 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 STTH8BC060D part is unused and in its original packaging.
Return procedure for STTH8BC060D:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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