562.404.4474 JANS Certified / ISO 9001 and AS9100 Certified


2021.04.20 - SSDI Introduces New, High Power (8 amp, 300 - 400 volts) Replacement for 1N6626 - 1N6627

SDR8400: 8 Amp Replacment for 1N6626 - 1N6627

La Mirada, CA – SSDI has released the new SDR8400 series of high density rectifiers. With similar dimensions as the 1N6627, the SDR8400 delivers 8 amps, which is more than three times the output current of the 1N6627. The SDR8300 – SDR8400 series also features a voltage range of 300 – 400 volts, low forward voltage drop of 1.02 V, high peak surge current of 135 A and low reverse recovery time of 35 ns.

IO 8 A 2.3 A
VR 300 V
400 V
200 V
400 V
IFSM 135 A 75 A
VF 1.02 V
(@ 8 A)
1.5 V
(@ 4 A)
tRR 35 ns 30 ns

The SDR8300 and SDR8400 are available in axial leaded and surface mount square tab (SMS) hermetic packaging options. These products are intended for high reliability aerospace and defense applications. TX, TXV, and S level screening based on MIL-PRF-19500 is available. Contact SSDI online or call (562) 404-4474 to request samples or to discuss specific program needs.


  • Hyperfast reverse recovery: 35 ns maximum
  • Hermetically sealed
  • Low forward voltage drop: 1.02 V maximum
  • Void free chip construction
  • For high efficiency applications
  • Available in axial & square tab versions
  • High current replacement for 1N6626 - 1N6627
  • TX, TXV, and S level screening available - contact factory

RectifiersVisit the Rectifiers product category (PRODUCTS > Rectifiers) to view additional Rectifiers and data sheets

SSDI's Rectifiers Catalog is also available for download at SUPPORT > Literature