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BUY ULN2804A https://www.utsource.net/itm/p/11246264.html

Description: The ULN2804A is a high-voltage, high-current Darlington transistor array. It consists of eight NPN Darlington pairs that feature high-voltage outputs with common-cathode clamp diodes for switching inductive loads. Features: 500-mA-rated collector current (single output) High-voltage outputs: 50 V Output clamp diodes Low saturation voltage Inputs compatible with various types of logic Outputs can be paralleled for higher current capability Applications: Relay, hammer, and lamp drivers Line drivers Motor controls High-voltage, high-current switching (For reference only)