A capacitor is a passive electronic component consisting of a pair of conductors separated by a dielectric.

Our product is under our own brand "Kingtronics" and enjoy a very good reputation around the world. Kingtronics is specialize in application specific multilayer ceramic capacitors.

Our product offerings included surface mount capacitors from 0402, 0603, 0805, 1206, 1210... to larger high voltage units for Commercial and High Reliability applications with different tolerance NPO +/-5%, X7R +/-10%, Y5V +/-20%. And is rated at 6.3 to 50V for low voltage chip ceramic capacitor and from 63 to 4kV for high voltage multilayer ceramic capacitor, many customers approved our kingtronics products quality and service.

Pls contact us at any time if you have inquiry, and welcome to visit our website: www.kingtronics.com

If you need bridge rectifier, please contact kingtronics. We are a manufacture with owm brand kingtronics with ISO certification.

Kingtronics offer a wide range of diode and bridge rectifier, our UL certification is available. 

please check some of our popular part number like DB107, MB10S, KBL4005,KBU610, KBPC2510, do you have any request about mentioned products?

Find product feartures for Single Phase Bridge Rectifiers DB107 Tube RoHS:

Ideal for printed circuit board

Reliable low cost construction technique

results in inexpensive product

High temperature soldering guaranteed:

260 / 10 seconds / 0.375” ( 9.5mm )℃

lead length at 5 lbs., ( 2.3 kg ) tension

Hope you can take a few minutes to visit our website, you can find very good pictures and details of our products with our trade mark Kt, kingtronics.

And more other products informations on our website: www.kingtronics.com , maybe you can find some products you need.

Hello Sir,

It is a long time since last contact. I hope you are very well.

Kingtronics produce high quality diode and bridge and sell our registered brand "Kingtronics", trademark "Kt".

Above diode M7 LL4148 BZV55C S1M are our bestseller. M7 LL4148 have regular stock.

Could you please check if you have related inquiry on hand? Or, maybe you could tell me your purchaser of diodes? Many thanks!

I will be glad to talk with you via email or skype. Welcome to send me message. :-)

Waiting for your reply always and have a nice day!

Best wishes,
Selina Zhang
Sales Supervisor

Kingtronics International Company

  • ISO 9001: 2008 manufacturer
  • UL Approval ; SGS certified
  • Tel: (852) 8106 7033
  • Skype: kingtronics.sales
  • www.kingtronics.com

Diode Rectifier: S1M, RS1M, SM4007 melf, BZV55C, UF4007, 1N4007S, 1N4007, 1N5399, RL207, 1N5408, 6A10, FR107, 1N4937, FR157, FR207, 1N5822, etc...

Bridge Rectifier: DB107, DB107S, MB10S, KBL410, KBU610, KBPC2510, KBPC3510, KBPC3510W, etc (UL Approval)...

Manufacturer:Kingtronics ISO 9001: 2008 manufacturer

Part Number:DB107S

Manufacturer Part No:DB107S

RoHS Compliance : Yes


  • Bridge Rectifier, Single, 1A, 1000V, DBS
  • No. of Phases:Single
  • Repetitive Reverse Voltage Vrrm Max:1kV
  • Forward Current If(AV):1A
  • Forward Voltage VF Max:1.1V
  • Diode Mounting Type:Surface Mount
  • RoHS Compliant: Yes


Kt Kingtronics 1N4148

14 Oct 2011

1N4148 Description:

The 1N4148 is a small signal, high-speed switching diode.

Typically found in a DO-35 glass axial package it is very useful at high frequencies and are very popular in low-current applications.

Currently the 1N4148 is sourced by manufacturers.It is also known as the 1N914.

1N4148 Features

VRRM = 100V (Maximum Repetitive Reverse Voltage)

IO = 200mA (Average Rectified Forward Current)

IF = 300mA (DC Forward Current)

IFSM = 1.0 A (Pulse Width = 1 sec), 4.0 A (Pulse Width = 1 uSec) (Non-Repetitive Peak Forward Surge Current)

PD = 500 mW (power Dissipation)

TRR < 4ns (reverse recovery time)

Device Category:Diodes and Rectifiers

1N4148 Applications:High-speed switching

A new report on the global semiconductor and electronic components market has forecast the sector to reach $628 million (£385.4 million) by 2015.

Carried out by IBISWorld, the Global Semiconductor and Electronic Components Manufacturing report highlighted the growth in components such as capacitors, resistors, LEDs, inductors and filters.

It revealed a compound annual growth rate in the sector of one per cent between 2006 and 2010 and revealed that sales of integrated semiconductors made up 53.4% of the market during this period.

Revenues totalled $430 million in 2010, but the market is set to grow by almost a third over the next four years, the report states.

Meanwhile, a report compiled by MarketResearch.com recently showed that the global market for automotive semiconductors is set to expand over the coming years.

"It is no surprise that one of the major drivers of the automotive industry over the years has been the rise of integrated electronics," an unnamed industry analyst stated.

A trimming potentiometer is a manually adjustable resistor. This device works in relatively simple way. One terminal of the potentiometer is connected to a power source. Another is hooked up to ground (a point with no voltage or resistance and which serves as a neutral reference point), while the third terminal runs across a strip of resistive material.

This resistive strip generally has a low resistance at one end; its resistance gradually increases to a maximum resistance at the other end.

The third terminal serves as the connection between the power source and ground, and is usually interfaced to the user by means of a knob or lever.

The user can adjust the position of the third terminal along the resistive strip in order to manually increase or decrease resistance.

By controlling resistance, a potentiometer can determine how much current flows through a circuit. When used to regulate current, the potentiometer is limited by the maximum resistivity of the strip.

The power of this simple device is not to be underestimated. In most analog devices, a potentiometer is what establishes the levels of output.

In a loud speaker, for example, a potentiometer directly adjusts volume; in a television monitor, it controls brightness.

Kingtronics is a professional trimming potentiometer manufacturer. We have got ISO9001:2008 Certification. The quality is 100% guareeted.

You can visit our website www.kingtronics.com for the details,or you can inquire me directly,I am at your service at anytime.

Olivia (sales1@kingtronics.com)

Kingtronics produce and sell dipped tantalum capacitor and SMD tantalum capacitor. If you have inquiry, pls send inquiry to sales1@kingtronics.com Pls visit our new website www.kingtronics.com for our ISO 9001: 2008 certification, UL certification, SGS certification.

Tantalum is a dense and ductile metal that is silver-gray in color. It is considered both a refractory metal, due to its high melting point of 2,996 degrees Celsius and a valve metal, due to its tendency to oxidize, which forms an insulating film.

Size & Energy

Tantalum capacitors can pack a lot of energy into a very compact package. This is an essential quality when it comes to electronic devices,

particularly cell phones, mp3 players and portable computers, which have been persistently getting smaller and smaller.A tantalum capacitor rated at 10 uF can produce the same amount of voltage as a 100 uF aluminum capacitor.


Tantalum is extremely resistant to heat. However, the metal is also resistant to extreme temperatures in general, and can retain its properties even in excessive cold, which is important if you leave your cell phone or mp3 in a parked car during winter. In addition, tantalum can withstand exposure to corrosive substances, including sulfuric, nitric and hydrochloric acids.


Tantalum can be electrochemically oxidized so that it forms a stable, insulating film on its outside. This oxidized tantalum makes the perfect

material for the insulating portion of a capacitor, known as a dielectric, which is sandwiched between two conductors.

1.Category :

Electronic Components >>Passive Components>>Resistors>>Potentiometer>>trimmers


Kingtronics produce cermet trimmer potentiometer since 1990, very good quality, all RoHS compliant, with SGS report available, short delivery.

Trimming PotentiometersTrimming potentiometer is Kingtronics’first products. Kingtronics produce trimming potentiometer since 1990, include

following part number: RKT-3006, RKT-3266, RKT-3296, RKT-3323, RKT-3329, RKT-3362, RKT-3386, RKT-3309, RKT-065, , RKT-C3305, RKT-3006, RKT-3590...


Potentiometers are resistors in which provides variable resistance by adjusting a control device.

Potentiometers have a wide range of industry applicatrions such as in systems of control or regulation, in automatic systems of control or regulation,

in measuring devices, or in radio technical devices. In an electric power steering system of a vehicle, a potentiometer is linked with a torsion bar spring which

receives the steering torque from the steering wheel of the vehicle.

1. control ceiling fan speed.

2. control radio volume.

3. dimmer switches.

4. general consumer electronics.

5. audio products / car audio equipment.

6. communication application equipments.

7. house cinema system equipments.

8. control volume of television, CD, PC player, PV video, earphone etc. etc.

9. electric lamp and lanterns.

10. other electronic products.

Kingtronics international company

Strong products:

Diode M7 S1M LL4148 BZV55C, Bridge rectifier

Radial mlcc capacitor, dipped tantalum capacitor, Trimming potentiometers

Diode Rectifier

Diode Rectifier

Diode M7 DO-214AC (1A 1000V) T&R RoHS. SMA

Diode SR560 (5A 60V) Bulk RoHS. DO-27

Diode LL4148 SMD T&R RoHS. Minimelf

Diode UF4004 (1А 400V) Bulk RoHS. DO-41


Diode UF4007 (1A 1000V) Bulk RoHS. DO-41


Diode 10A10 (10A 1000V) TO-R6 RoHS R-6


Diode 1A7 (1A 1000V) Bulk RoHS R-1


Diode 1N4007 (1A 1000V) Bulk RoHS DO-41


Diode 1N4148 (150mА 100V) Bulk RoHS 


Diode 1N4448 Bulk RoHS DO-35


Diode 1N4937 Bulk RoHS DO-41


Diode 1N5397 (1,5A 600V) Bulk RoHS DO-15


Diode 1N5399 (1,5A 1000V) Bulk RoHS DO-15


Diode 1N5408 (3A 1000V) Bulk RoHS DO-27


Diode 1N5819 (1A 40V) Bulk RoHS DO-41


Diode 1N5822 (3A 40V) Bulk RoHS DO-27


Diode 6A10 (6A 1000V) Bulk RoHS. R-6


Diode EM518 (1A 2000V) Bulk RoHS DO-41


Diode FR207 (2A 1000V) Bulk RoHS. DO-15


Diode FR307 (3A 1000V) Bulk RoHS DO-27


Diode HER208 (2A 1000V) Bulk RoHS DO-15


Diode HER305 (3А 400V) Bulk RoHS DO-27

Diode 1N5406 (3A 600V) Bulk RoHS. DO-27

Diode HER307 (3А 800V) Bulk RoHS DO-27

Diode 1N5407 (3A 800V) Bulk RoHS. DO-201AD

Diode SS16 (1A 60V) T&R RoHS. SMA

Diode FR157 (1,5A 1000V) Bulk RoHS. DO-15

Diode SS14 (1A 40V) T&R RoHS. SMA

Diode FR607 (6A 1000V) Bulk RoHS. R-6

Diode SF18 (1A 600V) Bulk RoHS. DO-41

Diode HER102 Bulk RoHS. DO-41

Diode SF26 (2A 400V) Bulk RoHS. DO-15

Diode HER107 Bulk RoHS. DO-41

Diode SF28 Bulk RoHS. DO-15

Diode HER108 (1A 1000V) Bulk RoHS. DO-41

Diode SF34 (3A 200V) Bulk RoHS. DO-201AD

Diode HER203 (2А 200V) Bulk RoHS. DO-15

Diode SF36 (3A 400V) Bulk RoHS. DO-27

Diode HER302 (3А 100V) Bulk RoHS. DO-27

Diode SR360 (3A 60V) Bulk RoHS. DO-27

Diode LL4448 SMD MINIMELF Tape & Reel RoHS

Diode SR506 (5A 60V) Bulk RoHS. DO-27

Diode SB360 (3А 60V) Bulk RoHS. DO-27

Diode SR510 (5A 100V) Bulk RoHS. DO-27

Diode SB560 (5А 60V) Bulk RoHS. DO-27

Diode SR540 (5А 40V) Bulk RoHS. DO-27

Contact us

Tel: (86) 769 8118 8110
Tel: (852) 8106 7033
Fax: (852) 8106 7099
E-mail: info@kingtronics.com
Skype: kingtronics.sales
MSN: kingtronics-sales@hotmail.com
Web: www.Kingtronics.com


Kingtronics International Company was established in 1995 located in Dongguan City of China to handle all sales & marketing for factories located in Chengdu, Sichuan and Zhaoqing, Guangdong, China. In 1990, we established the first factory to produce trimming potentiometer and in 1999 we built up new factory in Zhao Qing, Guangdong. Now with around 850 workers, Kingtronics produce trimming potentiometers, dipped tantalum capacitors, multilayer ceramic capacitors, and diode & bridge rectifier. We sell good quality under our brand Kingtronics, and Kt, King, Kingtronics are our three trademarks. All our products are RoHS compliant, and our bridge rectifier have UL approval. Please visit our Products page, you could please download all our PDF datasheet and find cross reference for our Trimming Potentiometer and capacitors.

Tantalum and Ceramic Capacitors Cross Reference ↓ Download
Diodes & Rectifiers List(PDF: 97KB) ↓ Download
Trimming Potentiometer Cross Reference ↓Download

Meet Kingtronics in Moscow soon
Convention and Exhibition Centre,HongKong
Date: 13-16 October, 2019
Booth No.: 5G-C26

Meet Kingtronics in Munich soon
New Munich Trade Fair Centre, Germany
Date: 10-13 November, 2020
Booth No.: To be advised