STTH1210D STMicroelectronics Diode (Transistor Outline, Vertical) In Stock
STTH1210D is a high-voltage ultra-fast soft-recovery rectifier diode from STMicroelectronics rated at 12 A, 1000 V with a 48 ns reverse recovery time and 1.7 V maximum forward voltage. It is housed in a 2-pin TO-220AC package and suited for free-wheeling, snubber, and high-reliability power conversion circuits. Available from stock worldwide shipping.
- Manufacturer
- STMicroelectronics
- Package
- Transistor Outline, Vertical
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- STTH1210D Datasheet PDF
- Category
- Diode
- Price
- From $0.2259(MOQ 1)
- Temp Range
- ?°C to 175.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 48 ns ultra-fast soft reverse recovery minimizes switching losses and EMI in high-frequency power converters operating above 100 kHz
- 1000 V blocking voltage and 12 A forward current rating enable use in high-voltage industrial power supplies and motor drives without derating
- Low leakage current and soft recovery waveform reduce voltage spikes across snubber and free-wheeling circuits, improving reliability in inverter topologies
Applications
STTH1210D is designed for free-wheeling and snubber diode positions in industrial inverters, switch-mode power supplies, and UPS systems operating at voltages up to 1000 V. Its ultra-fast 48 ns soft recovery characteristic is critical in PFC stages and LLC resonant converters where diode recovery loss directly impacts efficiency. The TO-220AC through-hole package simplifies heatsinking in high-power designs requiring reliable thermal management.
Specifications
| Factory Lead Time | 15Weeks |
| YTEOL | 6 |
| Additional Feature | FREE WHEELING DIODE, LOW LEAKAGE CURRENT, SNUBBER DIODE, HIGH RELIABILITY |
| Application | HIGH VOLTAGE ULTRA FAST SOFT RECOVERY |
| Configuration | SINGLE |
| Diode Element Material | SILICON |
| Diode Type | RECTIFIER DIODE |
| Forward Voltage-Max (VF) | 1.7V |
| JEDEC-95 Code | TO-220AC |
| JESD-30 Code | R-PSFM-T2 |
| JESD-609 Code | e3 |
| Non-rep Pk Forward Current-Max | 80A |
| Number of Elements | 1 |
| Number of Phases | 1 |
| Output Current-Max | 12A |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | RECTANGULAR |
| Package Style | FLANGE MOUNT |
| Peak Reflow Temperature (Cel) | NOT SPECIFIED |
| Qualification Status | Not Qualified |
| Rep Pk Reverse Voltage-Max | 1000V |
| Reverse Recovery Time-Max | 0.09 µs |
| Surface Mount | NO |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | NOT SPECIFIED |
| Package | Transistor Outline, Vertical |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8541.10.00.80 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What are the key electrical ratings of STTH1210D for high-voltage power supply designs?
STTH1210D is rated for a maximum repetitive reverse voltage of 1000 V, a forward current of 12 A, a maximum forward voltage of 1.7 V at 12 A, and a reverse recovery time of 48 ns, making it suitable for industrial switch-mode power supplies and high-voltage inverter output stages.
How does the 48 ns soft recovery time of STTH1210D reduce EMI in switching converter designs?
The ultra-fast 48 ns soft recovery limits di/dt during turn-off to gentle ramp rates rather than abrupt snaps, reducing the high-frequency ringing on the converter switching node by typically 6 dB to 10 dB, which can eliminate the need for additional RC snubber networks and simplify EMI filter design in power conversion circuits above 100 kHz.
In which power topology positions is STTH1210D typically deployed as a free-wheeling or snubber diode?
STTH1210D is commonly placed as a free-wheeling diode across inductive loads in half-bridge and full-bridge inverters, as a snubber diode across IGBT collectors in motor drives up to 1000 V, and as a boost rectifier in PFC stages where 12 A continuous current and soft recovery are both required.
What thermal considerations apply when mounting STTH1210D in the TO-220AC package for 12 A operation?
At 12 A forward current with a 1.7 V forward voltage, STTH1210D dissipates up to 20.4 W, requiring a heatsink with a thermal resistance below approximately 5°C/W to keep junction temperature under 150°C at a 25°C ambient, with the TO-220AC package providing direct bolt-down mounting to standard aluminum heatsinks using industry-standard footprints.
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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.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.2259 | $0.23 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
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