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Infineon Technologies IDB18E120
Infineon Technologies

Infineon IDB18E120 Diode, 1.2 kV 31 A Fast Recovery

MPNIDB18E120
End of Life

Infineon IDB18E120 standard fast-recovery diode, 1200 V DC reverse voltage, 31 A average rectified, 195 ns reverse recovery time, 14-TSSOP surface-mount package, -55°C to 150°C junction temperature.

$1.05Ref. price · indicative, final on quote
IDB18E120 datasheet
Packaging14-TSSOP (0.173", 4.40mm Width)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
  • PayPal buyer protectionPay by T/T, PayPal or Payoneer — card payments covered end to end.

Specifications

IDB18E120 Technical Specifications
ParameterValue
Diode typeStandard
Mounting typeSurface Mount
Voltage - DC reverse (Vr)1200 V
Voltage - forward (Vf) (Max) @ if2.15 V @ 18 A
Current - reverse leakage @ vr100 µA @ 1200 V
Current - average rectified31A
Operating temperature - junction-55°C ~ 150°C
SpeedFast Recovery =< 500ns, > 200mA (Io)
PackageBulk
Case14-TSSOP (0.173\", 4.40mm Width)
Reverse recovery time195 ns

Product details

What this diode is and where it fits

The Infineon IDB18E120 is a standard fast-recovery rectifier diode rated for 1200 V DC reverse voltage and 31 A average forward current, with a reverse recovery time of 195 ns. It comes in a 14-TSSOP surface-mount package and operates over a -55°C to 150°C junction temperature range. This class of diode is used in power-supply output rectification, freewheeling diodes in motor drives, and snubber circuits where fast turn-off reduces switching losses. The 14-TSSOP footprint keeps the board layout compact, but at 31 A the PCB copper area must be sized for thermal spreading — the package alone won't sink that current without a decent pour.

Package and mounting

The 195 ns trr qualifies as fast recovery (under 500 ns at >200 mA). In a hard-switched converter, that recovery time sets the turn-off loss and the ringing amplitude.

Sourcing and lifecycle

No end-of-life notice or last-time-buy window is in effect. For a BOM line that needs a 1200 V fast-recovery diode in a 14-TSSOP package, this part can be specified into new designs without obsolescence risk.

Frequently asked questions

What is the reverse recovery time of IDB18E120?

The reverse recovery time (trr) is 195 ns, which qualifies as fast recovery (under 500 ns at >200 mA). This determines turn-off loss and ringing in switching applications.