Ultrasonic welding machine / lace machine, as the name implies, is a machine that uses the high-frequency oscillation of ultrasonic wave to clean the surface of weldment joint and heat it locally, and then applies pressure to realize the welding method.

Through repeated experiments, sptech optimizes the parameters of power tube to make it more suitable for ultrasonic application. The voltage, current, switching time and junction capacitance of CE and CB are optimized.

The new layout design of the chip can better match the circuit of Ever Green / Minghe / Branson.

--Model: 2sc3998, 2sc4237, 2sc3997, bu508a, j6920, 2sc5570, 2SC2246, etc
--Package: to-3pl, to-3p, t0-247, TO-3 (iron case)
--Customization: customized electrical parameters according to customers 

Advantages of ultrasonic tube:
1. New design: the new layout design of the chip better matches the circuit of EVA / Minghe / INEC; the parameters of the old models used to be used for the old TV are not completely matched.
2. High current: 2sc3998, sufficient current, up to 30a, strong explosive force.
3. Good consistency: each test passes the delivery. HFE is controlled between two magnification, such as 20-22
4. Low heating: optimized internal resistance, basically no heating, 50% lower than the original heating.
5. Easy to debug: the generator vibrates, and the machine can match from 15K to 35K.