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STTA812D Ultrafast high voltage diode, 1200V reverse voltage, 8A average forward current, fast recovery time 50ns typical, in TO-220AC package.
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STTA812D

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
Ultrafast high voltage diode, 1200V reverse voltage, 8A average forward current, fast recovery time 50ns typical, in TO-220AC package.
✓ Total Stock: 5,500 pcs
$ Price Range: $1.08

STTA812D Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Components Technology Group, Inc. ✓
Non-Authorised Inventory information
5,500 pcs
On Request
5500 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

STTA812D Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Current
Mounting Type
Operating Temperature
Reverse Recovery Time (trr)
Speed
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Voltage
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STTA812D Description

Short technical summary and product information.

The STTA812D is a TurboSwitch ultrafast high voltage diode from STMicroelectronics, designed for demanding switching applications. It features a repetitive peak reverse voltage of 1200V and an average forward current of 8A. The device offers a typical reverse recovery time of 50ns, with a maximum of 100ns, ensuring fast and efficient switching. Forward voltage drop is specified at a maximum of 2.0V at 25°C and typically 1.35V at 125°C, contributing to low conduction losses.

 

The diode exhibits soft recovery characteristics (softness factor 1.2 typical), which reduces electromagnetic interference and noise in high-frequency circuits. It is capable of handling high surge currents (70A non-repetitive) and repetitive peak currents up to 110A. The TO-220AC package is insulated, providing electrical isolation up to 2500V RMS, allowing for direct mounting on heatsinks without additional insulation.

 

Typical applications include motor control circuitries as freewheeling diodes, snubber, clamping, or demagnetizing diodes in switch-mode power supplies (SMPS), and high-voltage rectification in secondary sides of SMPS. The TurboSwitch technology ensures low overall power losses in both the diode and the companion switching transistor, making it suitable for high-frequency and high-pulsed current operations.

STTA812D Quick Information

Product Type: Fast Recovery Rectifier Diode
Series: Turboswitch
Canonical Name: STTA812D TurboSwitch Ultrafast High Voltage Diode
Subcategory: Fast Recovery Rectifier

STTA812D Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

STTA812D Estimated Pricing

Qty Low High
1,000+ $1.08 $1.08

Estimated market price range - modelled values for guidance only, not live distributor offers.

STTA812D Features

  • Ultrafast and soft recovery for reduced noise.
  • Rated for 1200V repetitive peak reverse voltage.
  • Average forward current of 8A with low forward voltage drop.
  • High frequency and pulsed current operation capability.
  • Insulated TO-220AC package for safe heatsinking.

STTA812D Applications

  • Motor control circuit freewheel diodes.
  • Snubber, clamping, or demagnetizing diodes in SMPS.
  • High voltage rectifier in secondary side SMPS.
  • PFC boost diodes in power supplies.

STTA812D FAQs

6 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive peak reverse voltage?

1200V.

What is the average forward current rating?

8A.

What is the forward voltage drop at 8A?

Maximum 2.0V at 25°C, typical 1.35V at 125°C.

What is the reverse recovery time?

Typical 50ns, maximum 100ns under specified conditions.

What is the package type?

TO-220-2 (TO-220AC) through-hole package.

What is the maximum junction temperature?

150°C.

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