KT Picture parsing for aluminum electrolytic capacitors

 Structure of aluminum electrolytic capacitors: 

Electrodes and dielectric foil of aluminum electrolytic capacitors:

Kt Kingtronics Angel Charity Social Activity in 2022 Spring

Kingtronics join in a charitable donation over 20 years, and some beneficiary always write to us, We are also happy to receive feedback whatever about study or life. Please keep in touch!

We are doing our best and using our voice to create as much positive change, hope the society will take more care of vulnerable Groups.

We know we have a good heart and we feel like to making the help for some adolescent who is left-behind children. If you have the empathy to empathize with a good heart, probably you can share the same kind of morals I do.

Kingtronics cross reference for Radial and Chip Tantalum Capacitors -- Low ESR, Solid Polymer

Kingtronics offer following product series of Tantalum Capacitors with excellent quality, extremely low ESR, Volumetrically efficient, Stable in electrical & storage performances, Long life-span, High reliability.

Following are our product data and cross reference, welcome your inquiry for more information.
Kt Kingtronics Tantalum Capacitors Product video:  https://www.youtube.com/watch?v=sXFsQ8o7VVs

Radial Epoxy Dipped and Chip Tantalum Capacitors
SERIES	DESCRIPTION	CAP.	VOLT (DC).	TEMP. (°C)
TKT	Radial Epoxy Dipped	0.1 - 330µF	6.3V - 50V	-55 ~ +125
CKT	Chip Tantalum Capacitors	0.1 - 470µF	4V - 50V	-55 ~ +125
EKT	Low ESR Chip Tantalum Capacitors	0.1 - 470µF	4V - 50V	-55 ~ +125
PKT	Solid Polymer Tantalum Capacitors	0.47- 1000µF	2.5V - 63V	-55 ~ +105

 

Cross reference:

Kingtronics Series	Description	NIC	AVX	Kemet	Vishay
TKT	Radial Epoxy Dipped Tantalum Capacitor	NDTM	TAP	T350 to T390
CKT	Chip Tantalum Capacitors	NTC-T	TAJ	T491	293D
EKT	Low ESR Chip Tantalum Capacitors	NTC-L	TPS	T495	593D

Kt Kingtronics Diodes Rectifiers and Transistors Resume Normal Gradually

In 2021, we cannot support some of our standard values of diodes and transistors because of material shortage, especially SS, SK, MBR, SR series Schottky Barrier Rectifier and transistors.

Meanwhile, there was long lead time for other diodes & transistors.

It was a bit inconvenience for all of us.
Nowadays, the supplies for some material resume normal gradually recently.
We can support some previous invalid values now.
Which is delighted that the lead time for rectifiers is improved now.

Welcome to share us your demand !
https://www.kingtronics.com/diodes-rectifiers/
Diodes and Rectifiers

KT Use technique of aluminum electrolytic capacitors

 Example 

１）Expected life of equipment (required conditions) 　　

Ａ︓10 years with 24h operation　　　　 　　

Ｂ︓10 years with 8h operation a day 

 

２）Ambient temperature of capacitor 　　

65℃ (Check ・ no heat generated part on reverse or around) 

・Capacitor selection 
case 1)
Ａ︓For 10 years with 24h operation
L = 24（hour）×　365（day）×　10（year）
= 87600（hour）→ Working hours for 10 years 　　　

Because the value is larger than 32000 hours, the 105℃ 2000h product does not satisfy the expected life, and the ambient temperature should be lowed.

 

Case 2)
Ｂ︓For 10 years with 8h operation a day 　　　　　 

L = 8（hour）×　365（day）×　10（year） 　　　　　　　

= 29200（hour）→  Working hours for 10 years 　　　

Because the value is smaller than 32000 hours, the105℃ 2000h product can be used.

Kingtronics GKT-GW Series 105°C Radial Aluminum Electrolytic Capacitors

Kingtronics produce and sell a wide variety of Aluminum Electrolytic Capacitors with long life, low Impedance and excellent performance options.

Radial type ecap GKT-GW series is designed extra Lower Impedance at high frequency and high ripple current.

Features:
ISO/RoHS certified quality
Long load life: 2000H
Operating temperature range: -40℃~+105℃
Wide range capacitance: 0.47uF - 10000uF
Voltage range : 6.3V - 50V
Various dimensions: 5*11mm - 18*36mm

Product datasheet: https://www.kingtronics.com/pdf/GKT-GW-105C-Radial-Aluminum-Electrolytic-Capacitors.pdf
Kingtronics Kt Radial Aluminum Electrolytic Capacitors Manufacturing Process:https://www.youtube.com/watch?v=o3bQ4Vj_33A

Kingtronics Aluminum electrolytic capacitors Major applications

 A.Power supply circuits

Stable DC power supplies are divided into intermittent control types (switching regulator) and continuous control types (Dropper).
Recent trends have shown an overwhelming growth in switching regulators, and so we talk mainly about switching regulators below.
The capacitors used in switching regulators are selected depending on the circuit. A forward switching regulator is shown as an example in Flg.6-1. Another type is a fly back regulator.



(1) Aluminum electrolytic capacitors for input (primary) smoothing circuits The Aluminum electrolytic capacitors for input smoothing circuits used on commercial voltages (100 V.AC, 200 V.AC) and commercial frequencies (60 Hz, 50 Hz) must have a high withstand voltage and a ripple current resistance complying with twice the commercial frequency (normally full-wave current).
These capacitors have large volumes (ground contact areas) compared to other components they are assembled with ,and so the demand for more compact capacitors, as well as power supplies, is strong. Another problem is the need for longer aluminum electrolytic capacitor lives, but products guaranteed for 5000 hours at 105℃ have recently been developed, thus realizing freedom from maintenance for 10 years.

(2) Aluminum electrolytic capacitors for output smoothing circuits The rated voltage of aluminum electrolytic capacitors used for smoothing at switching frequencies (20 k to 500 kHz) is determined by the output voltage, and they must have low impedance (low ESR) at switching frequencies. Therefore aluminum electrolytic capacitors for output smoothing are designed to have low impedance at 20 k to 500 kHz, and the recent development of a low resistance electrolyte using new materials has resulted in products with 1/3 to 1/4 the impedance of conventional products with the same volume. These low impedance products also have an extremely stable life

B. ECU for automotive

The electronization of in-vehicle control is accelerating these days. ECU (electrical control unit) which carries out in-vehicle control is asked for high reliance, a miniaturization, and high quality, and many aluminum electrolytic capacitors are used for it. A typical application example is shown below. 

(1) Power train ECU (Engine、 HV-Inverter etc.)


(2) Motor control ECU（Power steering, a blower / radiator fan motor, an electric pump etc.）


(3) LED lump


(4) Airbag


In automotive application, there are mainly an object for smoothing of input and output of the power supply of ECU and an object for energy reserve.
The rated voltage of 25 to 50 V.DC is mainly used.Not only current aluminum capacitor, aluminum capacitor with conductive polymer and
electrolyte is increasing due to improve quality, performance, with standing-voltage.It contributes to the small size of ECU, and a weight saving these days.