Kingtronics Blog

MMBT3904 and MMBT3906 are a bipolar (BJT) small signal transistor in a SOT−23-3 type surface mount package, they are designed for general purpose amplifier and switching applications. The useful dynamic range extends to 100mA as a switch and to 100MHz as an amplifier. As complementary types the NPN transistors MMBT3904 is recommended.

In response to demand market, Kingtronics small quantities transistors can be shipped immediately. The common application is signal Processing, Power Management, Portable Devices, Consumer Electronics, and Industrial.

NPN Silicon General Transistors MMBT3904 Datasheet Download:
http://kingtronics.com/pdf/MMBT3904.pdf
PNP Silicon General Transistors MMBT3906 Datasheet Download:
http://kingtronics.com/pdf/MMBT3906.pdf

Short Lead Time, Stable and High Quality, Extremely Competitive Prices

BC807-16/25/40, BC817-16/25/40   US$0.0066/pc
BC846A/B/C ~ BC850A/B/C               US$0.0045/pc
BC856A/B/C ~ BC859A/B/C
MMBT3904, MMBT3906, MMBT8050C/D, MMBT8550C/D, MMBT9012G/H, MMBT9013G/H, MMBT9014B/C/D, MMBT9018G/H, MMBTSC945L/O/P/Y...

Kingtronics/Kt brand, ISO, SGS & UL certified manufacturer since 1990
Datasheets: http://www.kingtronics.com/diodes-rectifiers/

---Other Active Lines: diode LL4148, M7, S1M, GS1M, BZV55C, BAV70, BAV99, bridge DB107, MB10S, GBU410...

Applications:
LCD TV set, monitors, speakers, power supplies, energy-saving lamps, microwave ovens, printers, set-top boxes, small household electrical appliances, etc.

Kingtronics Small Signal Transistor offer--High quality & more competitive price than Diodes, Fairchild, NXP, ON Semi, STM.

Regarding how transistor work, pls refer to: http://www.kingtronics.com/news/20131003.html

Small Signal Transistor
BC807-16/25/40   BC817-16/25/40
BC846A/B/C ~ BC850A/B/C         
BC856A/B/C ~ BC859A/B/C
MMBT3904           MMBT3906
MMBT8050C/D      MMBT8550C/D
MMBT9012G/H      MMBT9013G/H
MMBT9014B/C/D   MMBT9018G/H
MMBTSC945L/O/P/Y 

Diode Rectifier
BAV70 SOT-23 T&R RoHS  SPQ:3kpcs/reel 
BAV99 SOT-23 T&R RoHS  SPQ:3kpcs/reel 
M7 DO-214AC T&R RoHS  SPQ:5kpcs/reel, 80kpcs and 14kgs per carton, carton size: 35*35*35cm

Kingtronics offer high quality and competitive transistor, welcome to send us inquiry!