STTH30L06D STMicroelectronics Diode (Transistor Outline, Vertical) In Stock
The STMicroelectronics STTH30L06D is a single 600V 30A silicon ultrafast high-voltage rectifier diode with 1.25V max forward voltage in a TO-220AC package. Available from stock worldwide with competitive pricing.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- OBSOLETE
- Datasheet
- STTH30L06D Datasheet PDF
- Category
- Diode
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of STTH30L06D?
- 600V reverse breakdown voltage and 30A continuous forward current rating handle the full-load demands of industrial rectifier and freewheeling diode stages
- Ultrafast recovery characteristic with low reverse-recovery charge Qrr reduces switching losses and EMI in high-frequency rectification circuits operating above 50 kHz
- 1.25V maximum forward voltage at rated current minimizes conduction power loss, improving efficiency in boost PFC stages and secondary synchronous rectifiers
- 160A non-repetitive peak forward current surge rating provides robust protection during start-up transients and fault conditions in power converters
- TO-220AC single-diode package simplifies PCB layout with isolated mounting tab, enabling straightforward heatsink attachment for thermal management up to 175°C junction temperature
What is STTH30L06D used for?
The STTH30L06D is suited for freewheeling and output rectification in switch-mode power supplies, PFC boost converters, and motor-drive inverters operating from 200V to 480V AC mains where fast recovery and low forward drop are essential for high efficiency. Its 600V rating and 30A continuous current also make it effective as an anti-parallel diode in IGBT modules for industrial variable-frequency drives rated up to 15 kW. The rugged TO-220AC package with a 160A surge current rating provides additional protection in UPS and welding power supply applications that experience high-current transients during load steps.
What are the specifications of STTH30L06D?
| YTEOL | 0 |
| Application | HIGH VOLTAGE ULTRA FAST RECOVERY |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.25V |
| JEDEC-95 Code | TO-220AC |
| JESD-30 Code | R-PSFM-T2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 160A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 30A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 600V |
| Reverse Recovery Time-Max | 0.09 µs |
| Surface Mount | NO |
| Terminal Finish | MATTE TIN |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
Where can I find the STTH30L06D datasheet?
STTH30L06D Datasheet DownloadOfficial datasheet from STMicroelectronics
What are equivalent replacements for STTH30L06D?
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What forward voltage and current ratings define the STTH30L06D for switch-mode power supply output rectification?
The STTH30L06D carries a maximum forward voltage of 1.25V at its 30A rated continuous current with a case temperature of 100°C, and a non-repetitive peak surge capability of 160A for a single 8.3 ms half-sine pulse. At 30A average rectified current in a 400W SMPS output stage, the conduction loss is approximately 37.5W, which is substantially lower than a standard 1N5408-class diode at the same current, directly improving converter efficiency.
How does the ultrafast recovery characteristic of the STTH30L06D reduce EMI in a 100 kHz PFC boost converter?
The ultrafast recovery diode in the STTH30L06D transitions from conducting to blocking with a reverse-recovery time trr typically below 35 ns and a low Qrr, compared to 200 ns to 500 ns for standard fast-recovery diodes. At 100 kHz switching frequency, shorter trr reduces the reverse-recovery current spike that flows through the complementary MOSFET during each commutation, cutting switching losses by up to 30% and reducing the high-frequency conducted EMI that would otherwise require a larger common-mode choke to meet CISPR 32 Class B limits.
In a 15 kW industrial variable-frequency drive, how is the STTH30L06D typically used alongside IGBT switches?
The STTH30L06D serves as the anti-parallel freewheeling diode clamping inductive flyback energy when each IGBT turns off. At 15 kW from a 400V DC bus and 20 kHz switching frequency, each diode carries peak reverse currents corresponding to the motor phase current, which can reach 40A to 50A momentarily, within the 160A surge rating. The soft-recovery ultrafast characteristic suppresses voltage overshoot across the IGBT, reducing the risk of exceeding the 650V or 1200V IGBT collector-emitter voltage rating during switching transients.
What thermal management considerations apply when mounting the STTH30L06D in a TO-220AC package on a heatsink?
The TO-220AC package presents a junction-to-case thermal resistance RθJC of approximately 1.5°C/W for the STTH30L06D. At 30A with 1.25V forward drop, conduction loss is approximately 37.5W; using a heatsink with 1.0°C/W thermal resistance and a 0.2°C/W interface pad, junction temperature reaches 37.5 W × (1.5 + 1.0 + 0.2) °C/W + 40°C ambient = 141.25°C, within the 175°C maximum. Designers should add margin or reduce heatsink resistance to 0.7°C/W or below when ambient temperatures exceed 40°C.
When is the STTH30L06D a more cost-effective choice than a SiC Schottky diode in a 600V rectifier application?
At switching frequencies below 50 kHz and in cost-sensitive designs such as consumer UPS units and single-phase PFC stages below 500W, the STTH30L06D's ultrafast recovery performance approaches that of SiC Schottky diodes at a unit cost 60% to 80% lower. SiC Schottky diodes are preferred above 100 kHz or in server-grade power supplies where the efficiency premium of zero reverse-recovery current justifies a 3× to 5× price difference, but for 600V 30A rectification at moderate frequencies, the silicon ultrafast diode remains the economical standard solution.
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About STMicroelectronics
STMicroelectronics is a global semiconductor leader serving customers across the spectrum of electronics applications. ST's products are found in a wide range of applications including automotive, industrial, personal electronics, and communications.
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