Kingtronics Blog

 

Kingtronics Semiconductor:

3. Crystals: Crystals and Oscillators size 1612 to 7050,Tuning Fork 32.768KHz

Kingtronics is honored to be listed as a leading global manufacturer of Silicon Zener Diodes in the global market research report.

Dear customers,

This is news related to you, Kingtronics Bridge Rectifier series are cancelling UL gradually, and will fully cancel UL certification in 2020. At the same time, Christmas day is approaching already to us and our office will be closed during vacation, so lead time is a little bit tight.

And also we need to consider at least one week to sign the contract, issue the PO, issue the LC or perform the advance payment. What’s more, shipment is subject to vessel availability and weather condition, and none of them is in my hands. If you place an order according to your project requirement, please confirm your order ASAP. We assure you that we will try our best to push the production and shipment.

What are Small Signal Transistors? Small Signal Transistors are transistors that are mainly used to amplify low-level signals but also can be used in On/off switches for general use; Bias supply circuits; LED diode driver; Infrared diode amplifier; Relay driver; Timer circuits; Audio mute function; High voltage ‘A’ class preamplifier; Telecom wireline interface circuits; AM/FM amplifier and local oscillator of FM/VHF tuner.

Typical hFE values for small signal transistors range from 10 to 500, with maximum Ic ratings from about 80 to 600mA.Maximum operating frequencies range from about 1 to 300 MHz. They come in NPN and PNP forms and are being introduced in the small SMD plastic packages such as SOT-23.

Kingtronics small signal transistors are offered with the latest silicon planar technology that ensures high reliability and fast switching performance. We carry below small signal transistors, which meet that features.

MMBT9012: PNP Silicon Epitaxial Planar Transistors Datasheet Download:
http://kingtronics.com/pdf/MMBT9012.pdf
MMBT9013: NPN Silicon Epitaxial Planar Transistors Datasheet Download:
http://kingtronics.com/pdf/MMBT9013.pdf
MMBT9014: NPN Silicon Epitaxial Planar Transistors Datasheet Download:
http://kingtronics.com/pdf/MMBT9014.pdf
MMBT9018: NPN Silicon Epitaxial Planar Transistors Datasheet Download:
http://kingtronics.com/pdf/MMBT9018.pdf
MMBTSC945: NPN Silicon Epitaxial Planar Transistors Datasheet Download:
http://kingtronics.com/pdf/MMBTSC945.pdf

MMBT8050 and MMBT8550 are SOT-23 plastic package. There are three terminals which represents base, emitter and collector. For switching and amplifier applications, especially suitable for AF-driver stages and low power output stages.

They are a low voltage high current small signal transistor, designed for class B push-pull audio amplifier and general purpose applications. Collector current up to 600mA; Collector-emitter voltage up to 25V.The MMBT8550 transistor is subdivided into two groups C and D according to its DC current gain.

NPN Silicon Epitaxial Planar Transistors MMBT8050 Datasheet Download:
http://kingtronics.com/pdf/MMBT8050.pdf
PNP Silicon Epitaxial Planar Transistors MMBT8550 Datasheet Download:
http://kingtronics.com/pdf/MMBT8550.pdf

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

The following information about lead time and pricing of active parts has been gathered from multiple sources in the market.
There is no doubt that Kingtronics is the supplier who can support with more competitive lead time comparing with many other brands.

What are you waiting for ? Buy from Kingtronics now and enjoy the best lead time !

In response to environmental protection, we provide nylon folding reusable bags. Feel free to let us ship with your goods or samples shipments.

More free promotion materials can be prepared: http://www.kingtronics.com/packing/Kingtronics-Promotion-Materials.html

Let us know if more support is needed. Look forward to more prosperity in 2019.

Stock:
Full Range Catalog
M7, SM4007,LL4148, BZV55C Leaflet
Aluminum Elec. Capacitors & Bridge Rectifier Leaflet
Transistors and Diodes Leaflet
Paper Sample Box
PCB Sample Box
E-Cap File Folder Souvenir
M7 File Folder Souvenir
Russian Fold Leaflet

e-catalogues:
Aluminum Elec. Capacitors Leaflet
3MM Ceramic Capacitors Leaflet
Dip and SMD Tact Switch Leaflet

In second half of 2018, we met tough challenge with SOT-23 package diodes and transistors raw material supplies.
The prices increased and lead time was much longer than ever before.

Fortunately, SOT-23 package support is resumed normal in late Jan, 2019.
We even have chance to offer better prices than the original ones for some values with big quantity now.

Welcome to share request to check our latest support !