Welcome to Mastech Power Supply

Established in 1985, Mastech Power Supply brings three decades of global design and manufacturing knowledge to the field of regulated variable DC power supplies. Our large selection of linear DC power supplies offer exceptional noise performance, and our switching DC power supplies pack superior power and performance into a very small form factor. In the last three years, we have engineered the reliability and fault tolerance to the next level by adding over-voltage and reverse-voltage protection to most of the updated models under the new brand of Volteq.

With more than 10 years of experience selling and servicing Mastech Power Supplies directly in US, we are your best source for DC Power Supplies. Just remember you bought from us, and you don't need a receipt to get service!  To ensure best service, please order through us directly either via our website or by calling us at 408-622-9851. If you have any questions regarding our products, don't hesitate to call or email us!


We are located in the heart of Silicon Valley, where our DC power supplies have been widely used by the leading high tech firms for many years in R&D, manufacturing and testing. Starting January 2015, we offer same day delivery for the price of ground shipping to south bay including Santa Clara, Sunnyvale, Cupertino, San Jose, and Milpitas. Just make sure to place your order before 2 pm Pacific Standard time.

We offer volume discounts and education discounts, please give us a call or send us email for quote.


Linear DC Power Supply HY3003D-3
Switching DC Power Supply HY3020E
Quakko Hot Air Rework Station
Mastech Variac
Mastech Battery Charger
Function Generator SFG-2003
Digital Storage Oscilloscope
Arbitrary Waveform Generator


January Hot Sales


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