High Voltage SCR Switching Thyristor is Ideal for Regions with unstable incoming AC Mains Power

Thursday, June 2, 2016

High voltage SCR switches in robust TO-218AC and TO-220AB packages

The SK225xD/SK255KD/SK625xD/SK655KD Series SCR Switching Thyristors from Littelfuse are unidirectional switches designed to handle voltage spikes and power surges in incoming AC power mains. These SCRs can take up to 1300V (SK225xD and SK255KD Series) or 1700V (SK625xD and SK655KD Series) without malfunctioning. They are suitable for switching of 50/60Hz AC mains up to 440Vrms. These high voltage SCRs have high repetitive and non-repetitive peak off-stage voltage (VDRM/VDSM) ratings, ensuring reliable operation even when subjected to the high voltage surges common in commercial AC mains power in some areas. Typical applications include AC solid-state switches, industrial power tools, and line rectification (50/60Hz).


•    High repetitive peak off-state voltage (VDRM) of 1200V or 1600V
•    High non-repetitive peak off-state voltage (VDSM) of 1300 or 1700V
•    Durable internal ceramic insulation (RD, LD and KD packages)


•    Ensures reliable operation for AC mains voltages of 440Vrms (SK225xD and SK255KD Series) or 600Vrms (SK625xD and SK655KD Series).
•    Withstands voltage surges common in commercial AC mains power
•    Provides high electrical isolation voltage to ensure operating safety

For further information, please contact Jeva Narian on:
(011) 923 9600 jnarian@arrow.altech.co.za


Issued By:    Seipati Tlhoaele
Arrow Altech Distribution    
Tel: 011 923 9604                                  

Contact Us

Units J16 Centurion Business Park

Bosmansdam Road

Milnerton, 7441


Email Address:

Tel: (021) 555-1884 | Fax: (021) 555-1763

Suite AF. 2/3 Ensign Square 4 Sookhai Place Derby Downs Office Park

University Road


Durban, 3630


Email Adress:

Tel: (031) 279-1660 | Fax: (031) 267-3798

53-57 Yaldwyn Road

Hughes Extension

Jet Park 1459


Email Address:

Tel: (011) 923-9600 | Fax: (011) 923-9884

Customer Feedback

We are waiting to hear from you.

If you have any feedback please don't 
hesitate to email info@arrow.altech.co.za

Or give us a call on: (011) 923-9600 
Telefax: (011) 923-9884

Quality Management

Arrow Electronics