Shaanxi Qunli Electric Co., Ltd Add.:No. 1 Qunli Road,Baoji City,Shaanxi,China 3DD257(3DD258)NPN Silicon Low Frequency High Power Transistor Features: 1. Using triple-diffusion process.Excellent capacity in anti-burnout.Excellent second breakdown capacity. 2. Good temperature stability.Excellent thermal fatigue capability. 3. Implementation of standards: GJB33 A-97, QZJ840611A, QZJ8

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Shaanxi Qunli Electric Co., Ltd Add.:No. 1 Qunli Road,Baoji City,Shaanxi,China 3DD257(3DD258)NPN Silicon Low Frequency High Power Transistor Features: 1. Using triple-diffusion process.Excellent capacity in anti-burnout.Excellent second breakdown capacity. 2. Good temperature stability.Excellent thermal fatigue capability. 3. Implementation of standards: GJB33 A-97, QZJ840611A, QZJ8

Shaanxi Qunli Electric Co., Ltd Add.:No. 1 Qunli Road,Baoji City,Shaanxi,China 3DD253(254),3DD255(256),3DD257(258) NPN Silicon Low Frequency High Power Transistor Features: 1. Using triple-diffusion process.Excellent capacity in anti-burnout.Excellent second breakdown capacity. 2. Good temperature stability.Excellent thermal fatigue capability. 3. Implementation of standards: GJB33

Shaanxi Qunli Electric Co., Ltd Add.:No. 1 Qunli Road,Baoji City,Shaanxi,China 3DD259(260,261), 3DD262(263) NPN Silicon Low Frequency High Power Transistor Features: 1. Using triple-diffusion process.Excellent capacity in anti-burnout.Excellent second breakdown capacity. 2. Good temperature stability.Excellent thermal fatigue capability. 3. Implementation of standards: GJB33 A-97, Q