STTH312B Ultrafast recovery diode rated for 1200V repetitive peak reverse voltage and 3A average forward current. Available in DPAK surface mount package.
Mfr Part #:

STTH312B

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
Ultrafast recovery diode rated for 1200V repetitive peak reverse voltage and 3A average forward current. Available in DPAK surface mount package.
Total Stock: 3,500 pcs
$ Price Range: $0.59

STTH312B Available from 1 distributor

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Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
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3,500 pcs
3500 pcs On Request 1 On Request On Request On Request On Request On Request

STTH312B Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Average Forward Current (IF(AV))
Current
Forward Voltage (Typical/Maximum @ Tj=125 °C, IF=3 A)
Forward Voltage (Typical/Maximum @ Tj=150 °C, IF=3 A)
Junction to Case Thermal Resistance (Rth(j-c))
Mounting Type
Non-repetitive Peak Forward Surge Current (IFSM)
Operating Temperature
Repetitive Peak Reverse Voltage (VRRM)
Reverse Leakage Current (Maximum @ Tj = 25 °C, VR = VRRM)
Reverse Leakage Current (Typical/Maximum @ Tj=125 °C, VR=VRRM)
Reverse Recovery Time (Typical/Maximum @ IF=1 A, dIF/dt=-100 A/µs, VR=30 V, Tj=25 °C)
Reverse Recovery Time (trr)
Speed
Storage Temperature
Supplier Device Package
Tape & Reel
Technology
Voltage

STTH312B Description

Short technical summary and product information.

The STTH312B is an ultrafast recovery diode from STMicroelectronics designed for high efficiency rectification in demanding applications. It features a repetitive peak reverse voltage of 1200V and an average forward current of 3A at case temperature 150°C with 0.5 duty cycle.

 

The diode offers very low conduction and switching losses with a typical forward voltage of 1.15V at 150°C and typical reverse recovery time of 55ns. High junction temperature capability up to 175°C and low leakage current ensure reliable operation in industrial power supplies, motor control systems, and auxiliary functions such as snubber, bootstrap, and demagnetization circuits.

 

The STTH312B is available in a DPAK (TO-252-3) surface mount package, suitable for automated assembly. The device is RoHS compliant (unverified) and has an MSL of 1 (unlimited).

STTH312B Quick Information

Product Type: Ultrafast Recovery Diode
Series: STTH312
Canonical Name: STTH312B Ultrafast Recovery Diode 1200V 3A
Subcategory: Single Rectifier Diode

STTH312B Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 3
REACH Status: REACH Unaffected

STTH312B Estimated Pricing

Qty Low High
3,000+ $0.59 $0.59

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

STTH312B Features

  • 1200V repetitive peak reverse voltage.
  • 3A average forward current at 150°C.
  • Ultrafast recovery with typical 55ns trr.
  • Available in surface mount DPAK.

STTH312B Applications

  • Used in industrial power supply rectification.
  • Ideal for motor control freewheeling.
  • Suitable for snubber and bootstrap circuits.

STTH312B FAQs

7 frequently asked questions generated from this part’s specifications.
What is the maximum repetitive peak reverse voltage of STTH312B?

1200 V.

What is the average forward current rating of STTH312B?

3 A at case temperature 150°C with 0.5 duty cycle.

What is the forward voltage drop of STTH312B?

Maximum 2V at 25°C and 3A; typical 1.15V at 150°C and 3A.

What is the reverse recovery time of STTH312B?

Typical 55ns at IF=1A, dIF/dt=-100 A/µs, VR=30V, Tj=25°C.

What package does STTH312B come in?

Surface mount DPAK package (TO-252-3).

What is the non-repetitive peak forward surge current?

35 A for a 10ms sinusoidal pulse.

What is the maximum junction temperature?

175°C.

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