STTH8L06G-TR - 600V 8A Turbo 2 Ultrafast Rectifier | STMicroelectronics
料号： STTH8L06G-TR ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $1.45 | $1.45 |
| 10 | $1.21 | $12.10 |
| 100 | $0.95 | $95.00 |
| 500 | $0.78 | $390.00 |
| 1,000 | $0.69 | $690.00 |
| 3,000 | $0.62 | $1,860.00 |
STTH8L06G-TR 概述
A rectifier diode is a two-terminal semiconductor device that allows current to flow in only one direction, converting alternating current (AC) to direct current (DC). Ultrafast rectifiers, like the STTH8L06, feature very short reverse recovery times (trr) that minimize switching losses in high-frequency power conversion. The Turbo 2 family represents ST's second-generation ultrafast rectifier platform, positioned within the broader discrete-semiconductor taxonomy as: ultrafast rectifier -> rectifier diode -> power diode -> discrete semiconductor. The D2PAK package inherits from the TO-220 through-hole family, offering equivalent thermal performance in a surface-mount format that enables automated PCB assembly.
Key specifications include a maximum reverse recovery time of 105 ns (per DigChip datasheet excerpt), low reverse recovery current, and low thermal resistance for reduced switching and conduction losses. The device offers high insulation voltage rating and is qualified to industrial and consumer-grade reliability standards. With a peak forward surge current capability and operating junction temperature up to 175 °C, the STTH8L06G-TR delivers robust performance in demanding switching power supply environments.
Architecturally, the Turbo 2 process uses a platinum-doped lifetime control that achieves the ultrafast trr without the excessive forward voltage penalty seen in older ultrafast rectifiers. This trade-off between VF and trr is critical: lower trr means less switching loss in hard-switched PFC stages, while reasonable VF keeps conduction loss manageable. The combination makes the part particularly attractive in 100W to 1kW PFC stages where hard switching dominates the loss budget.
Typical applications include boost diode in CCM and critical-mode PFC front ends for switch-mode power supplies, freewheeling diode in DC-DC converters, output rectification in high-frequency SMPS, and snubber/commutation applications in motor drives. The D2PAK package suits both hand-soldered prototyping and high-volume surface-mount manufacturing. The STTH8L06 family also includes TO-220AC and TO-220FPAC variants (insulation voltage 2000 VDC) for through-hole designs requiring higher isolation.
When designing with this part, ensure the junction temperature stays within SOA limits by calculating power dissipation (P = VF × IF(AV) + switching losses). Provide adequate copper area on the D2PAK PCB pad — typically 1 square inch or more — to act as the heatsink. Pay attention to the snappiness factor (S = trr/tb) to evaluate EMI behavior in PFC circuits.
直接替换替代料： STTH8L06G-TR ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
快速对比工具——选择替代料号进行并排对比：
STTH8L06G
✅ 直接替换📋 参考替代料（不在目录中）
STTH8L06
✅ 直接替换📋 参考替代料（不在目录中）
STTH8R06G
✅ 直接替换📋 参考替代料（不在目录中）
STTH8R06G-Y
✅ 直接替换📋 参考替代料（不在目录中）
VS-8EWH06FN-M3
✅ 直接替换📋 参考替代料（不在目录中）
FFAF8U06P-BULK
✅ 直接替换📋 参考替代料（不在目录中）
STTH8L06G-TR 最大额定值与电气特性
| Manufacturer | STMicroelectronics |
| Part Family | STTH8L06 (Turbo 2 ultrafast rectifier) |
| Technology | Turbo 2 600 V planar ultrafast rectifier |
| Repetitive Peak Reverse Voltage (VRRM) | 600 V |
| Average Forward Current (IF(AV)) | 8 A |
| Reverse Recovery Time (trr) | 105 ns (max, per DigChip excerpt) |
| Number of Diodes | 1 |
| Diode Configuration | Single |
| 封装 | D2PAK (TO-263), surface-mount |
| 安装类型 | Surface Mount |
| 工作结温 | -40 °C to +175 °C |
| Storage Temperature | -65 °C to +175 °C (typical) |
| RoHS 状态 | RoHS compliant |
| Packaging | Tape & Reel (TR) |
| Primary Application | Boost diode in PFC stages |
| Insulation Voltage (TO-220FPAC variant) | 2000 VDC |
STTH8L06G-TR 引脚配置
| 引脚 1 | Cathode (K) — Cathode terminal; internally connected to the metal tab |
| 引脚 2 | Anode (A) — Anode terminal |
| 引脚 Tab | Cathode (K) - Mounting Tab — Metal mounting tab; internally connected to cathode (pin 1); soldered to PCB copper pour for thermal dissipation |
典型应用
STTH8L06G-TR 适用于 7 应用s: Boost Diode in PFC Power Supplies, Freewheeling Diode in DC-DC Converters, Output Rectification in SMPS, Snubber and Commutation in Motor Drives, Solar Inverter Front-End Rectification, Battery Charger Rectifier Stage, Telecom and Server Power Rectifiers.
Boost Diode in PFC Power Supplies
The STTH8L06G-TR is engineered primarily as the boost diode in discontinuous-mode and critical-mode power factor correction (PFC) stages. Its 600 V repetitive peak reverse voltage gives ample margin above the 400 V DC bus, while the 105 ns reverse recovery time minimizes turn-off switching loss at 50 kHz to 300 kHz operation. In a typical 200W PFC boost converter, the diode conducts the inductor current during the discharge phase and must survive the hard-switched reverse recovery event every cycle — Turbo 2 technology cuts that loss by 50% versus standard rectifiers, directly improving light-load efficiency and enabling compliance with 80 PLUS and Energy Star requirements.
推荐
Freewheeling Diode in DC-DC Converters
In buck, boost, and buck-boost DC-DC converters operating at 100 kHz to 500 kHz, the STTH8L06G-TR serves as a freewheeling diode carrying inductor current during the switch off-time. The 8 A average current rating covers 100W to 200W output power stages from a 24 V or 48 V bus, while the ultrafast recovery avoids the shoot-through and reverse-recovery-induced voltage spikes that plague slower diodes. Designers favor it for its low thermal resistance D2PAK package, which mounts directly on the PCB copper pour without a separate heatsink at moderate duty cycles.
推荐
Output Rectification in SMPS
The STTH8L06G-TR works as an output rectifier in isolated and non-isolated switch-mode power supplies, particularly in secondary-side rectification of forward and flyback converters. Its 8 A current capability handles up to 100W output levels, while the ultrafast switching enables higher switching frequencies that shrink the transformer and output filter size. Compared to Schottky rectifiers, it offers higher reverse voltage (600 V vs typically 100-200 V for Schottky) at a competitive price point.
推荐
Snubber and Commutation in Motor Drives
In variable-frequency drives, the STTH8L06G-TR is deployed in snubber networks across IGBTs or MOSFETs and as a commutation diode in brush-DC motor circuits. Its 600 V rating covers 230V and 400V DC-link voltages with comfortable derating margin, while the ultrafast recovery prevents cross-conduction during the dead-time between switch transitions. Industrial servo amplifiers and inverter stages benefit from the device's 175 °C maximum junction temperature, which provides thermal headroom in harsh enclosure environments.
推荐
Solar Inverter Front-End Rectification
In photovoltaic string inverters, the STTH8L06G-TR serves in auxiliary power supplies and as a blocking diode on the DC bus, particularly in non-isolated topologies where input voltages reach 600 V. Its ultrafast switching also helps when the diode appears in high-frequency bypass or clamping circuits around the main switching MOSFETs. The D2PAK package withstands the elevated ambient temperatures found in outdoor inverter enclosures, especially with proper PCB thermal design.
推荐
Battery Charger Rectifier Stage
The STTH8L06G-TR is used in the rectification stage of industrial battery chargers, particularly those operating from 230V AC mains where the DC bus sits around 400 V. Its 8 A current rating suits charger power levels up to 2 kW, and the ultrafast recovery improves efficiency in the power-factor-corrected front end. The D2PAK package simplifies integration into sealed charger enclosures where through-hole TO-220 variants would be mechanically awkward.
推荐
Telecom and Server Power Rectifiers
AC-DC front-end power supplies for telecom rectifiers and server PSUs use the STTH8L06G-TR in the PFC boost stage where 80 PLUS Platinum and Titanium efficiency levels demand the lowest possible switching losses. The 8 A rating covers 1U/2U server PSU designs at 500W to 1200W output, and the D2PAK package allows automated high-volume assembly. Its ultrafast recovery supports the higher switching frequencies (100 kHz to 200 kHz) that shrink magnetics and improve power density.
推荐
推荐产品汇总
工程参考数据： STTH8L06G-TR ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | STTH8L06G | STTH8L06 | STTH8R06G | VS-8EWH06FN-M3 | FFAF8U06P-BULK |
|---|---|---|---|---|---|---|
| Package | D2PAK (TO-263) SMD | D2PAK (TO-263) SMD - same | TO-220AC through-hole | D2PAK (TO-263) SMD - same | D2PAK (TO-263) SMD - same | D2PAK (TO-263) SMD - same |
| Brand | STMicroelectronics | STMicroelectronics (same) | STMicroelectronics (same) | STMicroelectronics (same) | Vishay Intertechnology | onsemi |
| VRRM (Repetitive Peak Reverse Voltage) | 600 V | 600 V | 600 V | 600 V | 600 V | 600 V |
| Average Forward Current IF(AV) | 8 A | 8 A | 8 A | 8 A | 8 A | 8 A |
| Reverse Recovery Time trr | 105 ns (max) | 105 ns | 105 ns | ~85 ns (slightly faster) | ~120 ns (per Vishay datasheet) | ~100 ns (per onsemi datasheet) |
| Technology | Turbo 2 600 V planar | Turbo 2 600 V planar (same) | Turbo 2 600 V planar (same) | Turbo 2 600 V planar (same family) | Vishay HEXFRED | onsemi Ultrafast |
| Operating Junction Temperature | -40 °C to +175 °C | -40 °C to +175 °C | -40 °C to +175 °C | -40 °C to +175 °C | -55 °C to +175 °C | -65 °C to +175 °C |
| Shipping Packaging | Tape & Reel (TR) | Tube / Tray | Tube (TH) | Tube | Tape & Reel | Bulk |
| AEC-Q101 Qualification | No (industrial grade) | No | No | No | No (industrial grade) | No (industrial grade) |
关键差异点
- Optimized Turbo 2 600 V technology for PFC stages （对比 STTH8L06 (TO-220AC through-hole))
- Tape-and-reel packaging for high-volume manufacturing （对比 STTH8L06G (tube version))
- Lower VF and conduction loss versus older ultrafast technologies （对比 STPS5L25B-TR (Schottky DPAK))
设计说明
The D2PAK package dissipates heat primarily through the metal mounting tab. Provide at least 1 square inch (645 mm²) of copper pad area on the PCB — preferably multi-layer with internal copper planes — to keep junction temperature within safe limits. At 8 A forward current with a typical VF of 1.5 V, conduction loss alone is 12 W, so thermal design is critical. Use thermal vias (0.3 mm to 0.5 mm diameter, 4 to 9 vias minimum) under the tab to spread heat into internal copper layers. Estimated junction-to-ambient thermal resistance (RθJA) is roughly 40 °C/W on a JEDEC EIA/JESD51 1sq foot pad with 2 oz copper, dropping to ~25 °C/W with more aggressive copper pours.
Route the high-current anode and cathode traces as wide as possible (minimum 2 mm width per ampere rule of thumb) to minimize conduction loss and copper temperature rise. Keep the diode loop area (anode → diode → cathode → return) as small as physically possible to reduce parasitic inductance, which causes voltage overshoot during reverse recovery. Place a small RC or RCD snubber across the diode in PFC boost circuits where dv/dt exceeds 5 kV/µs to control ringing and EMI.
Do not use the STTH8L06G-TR in continuous-conduction-mode PFC stages where the inductor current is always positive — its reverse recovery, while ultrafast, is not zero. Always design the PFC inductor for transition-mode or critical-mode operation where reverse recovery losses are minimized. Ensure the heatsink tab is at the same electrical potential as the cathode, which means the PCB copper pour under the tab is also at cathode potential — this can complicate multilayer board stackups and isolation strategies when stacking multiple boost stages.
In PFC circuits, the reverse recovery of the boost diode is the dominant EMI source in the 1 MHz to 30 MHz band. Use a ferrite bead on the AC input plus a small film capacitor (0.1-0.47 µF X2 class) across the diode to damp the ringing. The STTH8L06G-TR's Turbo 2 soft-recovery characteristic produces lower EMI than abrupt-recovery ultrafast rectifiers, but at hard-switched operation above 100 kHz, EMI filter design still requires attention.
合规信息
RoHS and REACH compliant per ST product page. Not AEC-Q101 qualified; choose STTH8R06G-Y for automotive applications. Lead-free reflow compatible to 260 °C JEDEC J-STD-020.
