10PCS UC3842BN UC3842B UC3843BN UC3843B UC3844B UC3844B UC3845BN UC3845B DIP-8 Switching power controller chip New original
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10PCS UC3842BN UC3842B UC3843BN UC3843B UC3844B UC3844B UC3845BN UC3845B DIP-8 Switching power controller chip New original