Introduction to STTH112A

Ⅰ.Product overview

STTH112A is a surface-mount fast recovery rectifier diode produced by STMicroelectronics, designed for high-voltage,high-frequency switching and rectification applications.

 

Ⅱ.Core parameter

Category:Discrete Semiconductor Products,Diodes,Rectifiers,Single Diodes

Mfr:STMicroelectronics

Packaging:Tape & Reel

Part Status:Active

Technology:Standard

Voltage - DC Reverse (Vr) (Max):1200 V

Current - Average Rectified (Io):1A

Voltage - Forward (Vf) (Max) @ If:1.9 V @ 1 A

Speed:Fast Recovery =< 500ns, > 200mA (Io)

Reverse Recovery Time (trr):75 ns

Current - Reverse Leakage @ Vr:5 µA @ 1200 V

Mounting Type:Surface Mount

Package / Case:DO-214AC, SMA

Operating Temperature - Junction:175°C (Max)

 

Ⅲ.Main characteristics

High Voltage Rating:Withstands reverse voltage up to 1200 V, suitable for high‑voltage rectification circuits.

Fast Recovery Speed:Reverse recovery time of only 75 ns, reducing switching loss in high‑frequency circuits.

Low Forward Voltage:Forward voltage drop of 1.9 V at 1 A, improving efficiency and reducing heat generation.

Low Leakage Current:Reverse leakage as low as 5 µA at 1200 V, ensuring low standby power consumption.

SMT Package:DO-214AC (SMA) package enables compact, automated surface-mount assembly.

High Temperature Resistance:Junction temperature up to 175°C for stable operation in harsh environments.

 

Ⅳ.Application field

Switching Power Supplies:Used as output rectifier in 24V/48V industrial power adapters and LED drivers.

Power Inverters:Applied in small solar micro‑inverters and UPS auxiliary rectifier circuits.

LED Drivers:Used in high-voltage LED streetlight and industrial panel light driver circuits.

Automotive Electronics:Used in automotive ignition systems and on-board charger auxiliary circuits.

Industrial Controls:Used in PLC output circuits and high‑voltage sensor power supply rectifiers.

Electronic Ballasts:Applied in fluorescent lamp and UV lamp electronic ballast rectifiers.

 

Ⅴ.Summary

STTH112A is a high-performance fast recovery diode featuring 1200 V reverse voltage,1 A forward current, and 75 ns recovery time.It provides efficient,reliable rectification for high-frequency and high-voltage power circuits in consumer,industrial, and automotive applications.