# ESJA09-12 (12kV/5mA)

##### HIGH VOLTAGE DIODE

ESJA09 is a high reliability, resin molded high voltage diode in a small package. It uses a multilayer mesa type silicon chip sealed by epoxy resin. Product is obsolete as of March 2007 and not recommended for new designs.

##### Features

️· High speed switching
️· Low VF (Forward Voltage)
️· High surge resistivity for CRT discharge
️· High reliability design
️· Ultra small package

##### Applications

️· Rectification for CRT display monitor high voltage power supply (FBT: Flyback Transformer)

## Maximum Ratings and Characteristics

Absolute Maximum Ratings

️· Repetitive Peak Reverse Voltage (VRRM): 12 kV
️· Average Output Current (IO): 5 mA
️· Surge Current (IFSM): 0.5 A (10mS Sine-half wave, peak value)
️· Junction Temperature (Tj): 120 °C
️· Allowable Operation Case Temperature (Tc): 100 °C
️· Storage Temperature (Tstg): -40 to +120 °C

Electrical Characteristics

️· Maximum Forward Voltage Drop (VF): 42 V (at 25°C, IF=10mA)
️· Maximum Reverse Current (IR1): 2 µA (at 25°C, VR=12kV)
️· Maximum Reverse Current (IR2): 5 µA (at 100°C, VR=12kV)
️· Maximum Reverse Recovery Time (trr): 0.05 µs (at 25°C, IF=2mA, IR=4mA)
️· Junction Capacitance (Cj): 1 pF (at 25°C, VR=0V, f=1MHz)

## Outline Drawings & Cathode Mark

️· Cathode marked with White.
️· Drawing includes dimensions in mm.