Order today, ships today. MMBT3904-7 – Bipolar (BJT) Transistor NPN 40V 200mA 300MHz 300mW Surface Mount SOT-23-3 from Diodes Incorporated. Pricing and Availability on millions of electronic components from Digi-Key Electronics. lity for any errors or inaccuracies. Data sheet specifications and its information contained are intended to provide a product description only. "Typical" paramet-ers which may be included on RECTRON data sheets and/ or specifications ca-n and do vary in different applications and actual performance may vary over ti-me.