5PCS UC3843B STMicroelectronics Current Mode PWM Controller 1A 500kHz IC-8

100 PCS UC3843BD SOP-8 UC3843B UC3843 3843B Current Mode PWM Controller Chip IC

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20 PCS UC3843AN DIP-8 UC3843A UC3843 Current Mode PWM Controller Chip IC

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10PCS UC3844BN UC3844B ST PWM Switching Controller IC 500 kHz DIP-8 SMPS

20 PCS UC3843BD SOP-8 UC3843B UC3843 3843B Current Mode PWM Controller Chip IC