na2121NA21 Datasheet. Part #: AHNA21. Datasheet: 136Kb6P. Manufacturer: Panasonic Semiconductor. Description: Relay for control panel of 1c 10A, 2c 5A and 1aNA2121 Datasheet. 351Kb24P. Part #: ENA2121. Manufacturer: Sanyo Semicon Device. Description: PWM Current Control Hh-efficient Stepping Motor Driver. 1 Results.