Kt Kingtronics Precautions for the Selection of Some Components

1. Capacitor
Chip capacitors and other components in the package of 1206 and above should be used with cautions, there is a practical risk in the welding process.
Ceramic capacitors use NPO (C0G) and X7R two types which temperature coefficient control is better. Tantalum capacitors which rated voltage is lower than 25V are preferred. The forming voltage of the Aluminum Electrolytic capacitors should be 1.2 to 1.4 times of the rated voltage.

In general, the comparison of ESR values of various capacitor: aluminum capacitor > tantalum capacitor > ceramic capacitor; 
The ripple current should not exceed the specifications under the high temperature, otherwise it will affect the service life; the limit value of each package is not recommended.

1.电容
慎用1206及以上封装的贴片电容等器件,焊接过程中有实效风险.
陶瓷电容选用NPO(C0G)和X7R这两类,温度系数控制较好。钽电解电容一般建议使用额定电压不超过25V产品。铝电解电容一般选取形成电压是额定电压的1.2到1.4倍。
一般情况下,各种电容ESR比较:铝电容>钽电容>陶瓷电容;注意高温下时的纹波电流不要超出使用规格,否则会影响使用寿命;每种封装的极限值不建议使用.


2. Diode & triode
When selecting the diode & triodes, pay attention to whether the following parameters are sufficient in the circuit to prevent the risk of damage.
Reverse breakdown voltage Vbr, reverse repeated operating voltage Vrwm, maximum average forward average current If, Instantaneous forward voltage Vf, reverse recovery time Trr, thermal resistance Rjc, maximum junction temperature Tjm.

2.二三极管
二三极管选型时注意以下参数在电路中是否够用,防止损坏风险。
反向击穿电压Vbr,反向重复工作电压Vrwm,最大平均正向平均电流If,正向压降Vf,反向恢复时间Trr,热阻Rjc,最高节温Tjm。

3. Crystals and crystal oscillators
Try to use the chip package. The largest shipment in the industry is 3.2mmx2.5mm (3225) package; 
the AT cut fundamental frequency is selected, the preferred range is 12MHz~15MHz; a crystal oscillator generally only drives one device.

3.晶体和晶振
尽量选用贴片封装,行业内目前出货量最大的是3.2mmx2.5mm(3225) 封装;
选择AT切基频,优选范围12MHz~15MHz;一个晶振一般只驱动一个器件。

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Kt Kingtronics 3MM Ceramic Trimmer Capacitors Replace Murata TZV2 Series

Hope you had great Chinese New Year Holidays and back to you. Are you worry about Murata TZV2 series will be discontinued? We are surface mount 3mm Ceramic Trimmer Capacitor manufacturer in HK and want to deal with people who need Trimmer Capacitors.

Kingtronics KKT series have color codes case permits easy identification, small size with external dimension of 3.2(W) x 4.5(L) x 1.5(T) mm. if you are an old user of TZV2 series, just only change the PCB pattern size to fit Kingtronics KKT 3MM series

Now please check the following items which suit for your product, hope it is helpful for you. We also can provide you superior quality with attractive price. Welcome find more details in the link: 
http://www.kingtronics.com/Ceramic-Trimmer-Capacitors/KKT-SMD-3mm-Ceramic-Trimmer-Capacitor.html

Capacitance                 MurataMurataKingtronicsKingtronics
 (pF MAX)Part NumberL x W (size)Part NumberL x W (size)
20pFTZV2R200A110B002.3(W)x3.2(L)x1.45max.(H)mmKKT-320TR (Pink)3.2(W) x 4.5(L) x 1.5(T)mm
20pFTZV2R200A110R002.3(W)x3.2(L)x1.45max.(H)mmKKT-320TR (Pink)3.2(W) x 4.5(L) x 1.5(T)mm
3pFTZV2Z030A110B002.3(W)x3.2(L)x1.45max.(H)mmKKT-303TR (Black)3.2(W) x 4.5(L) x 1.5(T)mm
3pFTZV2Z030A110R002.3(W)x3.2(L)x1.45max.(H)mmKKT-303TR (Black)3.2(W) x 4.5(L) x 1.5(T)mm
6pFTZV2Z060A110B002.3(W)x3.2(L)x1.45max.(H)mmKKT-306TR (Blue)3.2(W) x 4.5(L) x 1.5(T)mm
6pFTZV2Z060A110R002.3(W)x3.2(L)x1.45max.(H)mmKKT-306TR (Blue)3.2(W) x 4.5(L) x 1.5(T)mm
10pFTZV2Z100A110B002.3(W)x3.2(L)x1.45max.(H)mmKKT-310TR (Ivory)3.2(W) x 4.5(L) x 1.5(T)mm
10pFTZV2Z100A110R002.3(W)x3.2(L)x1.45max.(H)mmKKT-310TR (Ivory)3.2(W) x 4.5(L) x 1.5(T)mm
2.5pFTZV2Z2R5A110B002.3(W)x3.2(L)x1.45max.(H)mmKKT-303TR (Black)3.2(W) x 4.5(L) x 1.5(T)mm
2.5pFTZV2Z2R5A110R002.3(W)x3.2(L)x1.45max.(H)mmKKT-303TR (Black)3.2(W) x 4.5(L) x 1.5(T)mm

Note:The product information in this catalog is for reference only,Please contact our sales before ordering: info@kingtronics.com

Kt Kingtronics Launched a New Metal Oxide Varistor -XKT14D

Each years, Kingtronics will be investing funds in research and development of new products. XKT14D is one of important products of this quarter. Application for surge protection in consumer electronic equipment, surge protection in communication, measuring, or controller electronics and relay or electromagnetic valve surge absorption.
Varistor Voltages: 18 V- 1800 V
Maximum Allowable Voltage(ACrms): 11 V- 1100 V
Nominal Varistor Voltage: 101K- 911K
Standard Size: 17.5x20mm
Operating temperature range: -40℃~+105℃
Full compliance with RoHS and REACH
From the quality, we can say our XKT14D can confidently compete with oversea famous brands without a shame. From the price, you will be very much satisfied with them, please send your inquiry to us now.

Kt-Kingtronics-Metal-Oxide-Varistor-XKT14D

Kt Kingtronics File Global Lead Time Information in Electronics Industry

ACTIVES
Technology Manufacturer Current 

Lead-Times

Lead-Times

Trend

Comments
Rectifiers Diodes Inc 12-24 Increasing Schottky rectifiers SOT23 and SOD323 20- 24 weeks, PDI123 21 weeks, SBR TO220AB 12-20 weeks, SMA 16-18 weeks.
Vishay 16-52 Increasing There are increased lead times in SMA, SMB, SMC, TO-220, TO-263 and DPAK. Schottkys are most affected with 40-52 weeks lead time.
ON Semiconductor 18-42 Increasing SOD123 flat lead, SOT23 copper and SMA Flat lead 36-42 weeks lead time. Automotive parts 26-32 weeks
STMicroelectronics 20-33 Increasing TURBO 2 Ultrafast High Voltage Rectifiers running about 20 weeks. Everything else is 25-33 weeks.
Fairchild 12-14 Stable
TVS Diodes Diodes Inc 12-16 Increasing
Littelfuse 16 Increasing Purchased ON Semi TVS business Lead times 24 weeks
Vishay 25-40 Increasing SMC at 25 weeks SMA and SMB at 40
STMicroelectronics 8 Stable
Schottky Diodes Diodes Inc 12-22 Increasing
Nexperia 20-40 Increasing SOT23SD/DD from 20 to 45 weeks – SOD523 from 40 weeks – – SOT 89 40 WEEKS – SOT323SD/DD from 40 weeks SOT363 from 30 to 40 weeks SOT353P 20-40 WEEKS SOD123F 30 WEEKS DHVQFN14/16/20/24 from 12 to 24 weeks – DFN PACKAGES 20 weeks – SOD 323 26 WEEKS – SOT 223 40 WEEKS – DSN PACKAFES 20 WEEKS
ON Semiconductor 20-40 Increasing SMA 23-40 WEEKS – SMB 23-40 WEEKS – SMC 28-33 WEEKS – SOT 23 COPPER 20-45 WEEKS – SOT 89 16-30 WEEKS – SOT223 40 WEEKS – TO220 16-22 WEEKS – SOD 923 18-22 WEEKS – SOIC-8-14-16 20-30 WEEKS – SOD123 COPPER 20-30 WEEKS – SOD 323 DPAK 20-30 WEEKS – DFN PACK 20-52 WEEKS – SC 70 18-30 WEEKS
Fairchild 16-45 Increasing
Switching Diodes Diodes Inc 12-22 Increasing
Fairchild 16-45 Increasing
ON Semiconductor 16-40 Increasing SMA 23-40 WEEKS – SMB 23-40 WEEKS – SMC 28-33 WEEKS – SOT 23 COPPER 20-45 WEEKS – SOT 89 16-30 WEEKS – SOT223 40 WEEKS – TO220 16-22 WEEKS – SOD 923 18-22 WEEKS – SOIC-8-14-16 20-30 WEEKS – SOD123 COPPER 20-30 WEEKS – SOD 323 DPAK 20-30 WEEKS – DFN PACK 20-52 WEEKS – SC 70 18-30 WEEKS
Nexperia 20-40 Increasing SOT23SD/DD from 20 to 45 weeks – SOD523 from 40 weeks – – SOT 89 40 WEEKS – SOT323SD/DD from 40 weeks SOT363 from 30 to 40 weeks SOT353P 20-40 WEEKS SOD123F 30 WEEKS DHVQFN14/16/20/24 from 12 to 24 weeks – DFN PACKAGES 20 weeks – SOD 323 26 WEEKS – SOT 223 40 WEEKS – DSN PACKAFES 20 WEEKS
Zener Diodes Diodes Inc 12-22 Increasing
Fairchild 10-30 Increasing
Nexperia 6-40 Increasing SOT23SD/DD from 20 to 45 weeks – SOD523 from 40 weeks – – SOT 89 40 WEEKS – SOT323SD/DD from 40 weeks SOT363 from 30 to 40 weeks SOT353P 20-40 WEEKS SOD123F 30 WEEKS DHVQFN14/16/20/24 from 12 to 24 weeks – DFN PACKAGES 20 weeks – SOD 323 26 WEEKS – SOT 223 40 WEEKS – DSN PACKAFES 20 WEEKS
ON Semiconductor 12-40 Increasing SMA 23-40 WEEKS – SMB 23-40 WEEKS – SMC 28-33 WEEKS – SOT 23 COPPER 20-45 WEEKS – SOT 89 16-30 WEEKS – SOT223 40 WEEKS – TO220 16-22 WEEKS – SOD 923 18-22 WEEKS – SOIC-8-14-16 20-30 WEEKS – SOD123 COPPER 20-30 WEEKS – SOD 323 DPAK 20-30 WEEKS – DFN PACK 20-52 WEEKS – SC 70 18-30 WEEKS
Vishay 12-44 Increasing SMA SMB – 28-44 WEEKS
Bridge Rectifiers Diodes Inc 16-30 Increasing DFxx series 25-30 weeks, KBPxx series 21-25 weeks.
Fairchild 12-42 Increasing
Vishay 19-45 Increasing
General Purpose Transistors Diodes Inc 12-22 Increasing
Fairchild 10-40 Increasing
Nexperia 13-40 Increasing SOT23SD/DD from 20 to 45 weeks – SOD523 from 40 weeks – – SOT 89 40 WEEKS – SOT323SD/DD from 40 weeks SOT363 from 30 to 40 weeks SOT353P 20-40 WEEKS SOD123F 30 WEEKS DHVQFN14/16/20/24 from 12 to 24 weeks – DFN PACKAGES 20 weeks – SOD 323 26 WEEKS – SOT 223 40 WEEKS – DSN PACKAFES 20 WEEKS
ON Semiconductor 12-40 Increasing SMA 23-40 WEEKS – SMB 23-40 WEEKS – SMC 28-33 WEEKS – SOT 23 COPPER 20-45 WEEKS – SOT 89 16-30 WEEKS – SOT223 40 WEEKS – TO220 16-22 WEEKS – SOD 923 18-22 WEEKS – SOIC-8-14-16 20-30 WEEKS – SOD123 COPPER 20-30 WEEKS – SOD 323 DPAK 20-30 WEEKS – DFN PACK 20-52 WEEKS – SC 70 18-30 WEEKS
Rohm Semiconductor 10-60 Increasing The following packages have been extended to 40 weeks CPT – TSMT356 – TSMT36M – TSMT8 – TSMT8M – SOP8 – UMD2M – USM – EMD2M – EMD2 – TUSH/TUMD2S – PMDU – PMDUM – PSM – PMDS – SSOP5 – SSOP6
PASSIVES
Trimmers & Pots BI Tech 8-12 Stable
Piher 10-14 Stable
Panasonic 14-16 Decreasing Pots will be EOL by the end of 2017
Vishay 10-14 Stable
Electrolytic NIC Components 18-20 Increasing Leadtimes pushed out. Some pricing has been increased. Pushouts some cases 40 weeks
Nichion 18-28 Stable SMD 10×10,8×10,6.3×7.7 Leadtimes coming down now between 18-24, Snap-in still 28-30, price increases happening
Surge 14-19 Increasing Lead-times pushing out closing on 20 weeks on some products
Panasonic 14-18 Decreasing Some SMD dropping from 18 to 16 weeks. Some price increases.
United Chemicon 16-20 Increasing Leadtimes increasing the 18-20 weeks
Capacitors – Tantalum AVX 20-28 Increasing Long lead-times across all case sizes
Vishay 15-20 Increasing Lead-times extending on small case sizes A & B
Leaded Capacitors – Ceramic AVX 18-20 Stable
Murata 18-20 Stable A lot of parts EOL’d
Vishay 12-16 Stable
NIC Components 14-18 Increasing
TDK 14-20 Increasing
Surface Mount General Capacitors – Ceramic AVX 24+ Increasing Automotive Specs Sold Out, Allocation on 44 series of parts. Controlled order entry on long list of parts
Murata 20-38+ Increasing Controlled order entry on a long list of parts, mostly large case sizes. EOL notification on many parts
Samsung 24+ Increasing Lead times under pressure, price increases in Q1 2018
TDK 24+ Increasing On severe allocation
Taiyo Yuden 30+ Increasing On severe allocation
NIC Components 24+ Increasing
Yageo 38+ Increasing Price increase in Q1 2018, Controlled order entry on long list of parts
Walsin 40+ Increasing
Vishay 16+ Stable

Kt-File-Global-Lead-Time-Information

Kt Kingtronics Focus on Aluminum Elec. Capacitors and Semiconductors

Kingtronics produce two kinds of electronics components.

Passive compennts like Aluminum Electrolytic Capacitors(Snap-in, SMD, Radial Type) and other capacitors.

Strong products of Kt Kingtronics Aluminum Electrolytic Capacitors:
GKT-VA, 85°C SMD Aluminum Electrolytic Capacitors
GKT-GT, 105°C Radial Aluminum Electrolytic Capacitors
GKT-GS, 85°C Radial Aluminum Electrolytic Capacitors

Active compennts like Diodes & Transistors and Bridge Rectifiers. We recommend below products for you:
Diode Rectifier M7 (SMD 4001-4007)
Single Phase 0.8 AMPS, Glass Passivated Bridge Rectifiers MB1S-MB10S
BC807 PNP Silicon Epitaxial Planar Transistors
All our products are RoHS compliant, Reach standard and our bridge rectifier have UL approval. We are ready to be your professional and reliable supplier.kingtronics-elec-capacitors-semiconductors