SMD Varistor Surface Mount Varistors SMT Metal Oxide Varistor MOV SMD MOVS voltage dependent resistor

I. Dimensions, Appearance Identification and Packaging (mm)

1,In the drawing buard, it is suggested to regard A solder joint as Lline, B solder joint as N line, and wire the copper foih counected widl B solder joint around the pressure sensitive chip (the whole dliameter D should be regarded as belonging to A solder joint).

2,For the sake of safety arcing, the circular edge of the chip shall be at least 2.5mm away from any other conductive devices,as shown in the figure above (in order to prevent mutual displacement between the chip and other devices, if space permits, the larger the space, the better)

3,There are unfavorable factors in the use of varistor in DC circuit.It is not recommended to use varistor in DC circuit

after rectification. Please consider it carefully or contact our company telephone 13925862052 directly. Thank you!

Item	Technical Requirement	Testing Condition and Method
4- 1Appearance	No obvious bubble, pinhole and other defects; no any visible damage lowering using performance; clear and long-lasting sign	Visual inspection
4-2Weldability	Tin is uniform in tin immersion part; tinned area is ≥90%.	Soak pressure sensitive resistor into 235℃±5℃ tin soldering liquid for 2±0.5 s; then take it out and observe its appearance.
4-3 Resistance to Soldering Heat	Change rate of pressure sensitive voltage before and after test is ≤±5%.	Soak wire of pressure sensitive resistor into 350℃ ±10℃tin soldering liquid, with soak depth for 2-0.5 mm far away from pedestal. Adopt 1.5±0.2 mm thermal insulation layer and keep it for 5±0.5 s; measure pressure sensitive voltage with recovery time within 1 h-2 h.
4-4High Temperature Load	Before and after test, change rate of pressure sensitive voltage is ≤±10%; change rate of limiting voltage ≤±20%.	Put pressure sensitive resistor in 125±2℃ for 1,000 h and apply corresponding allowable using AC pressure of the temperature; power on for 90 min and power off for 30 min. After taking pressure sensitive resistor out, put it under normal temperature for more than 1 h; measure pressure sensitive voltage and limiting voltage within 4 h.
4-5 Outlet Terminal Strength	Change rate of pressure sensitive voltage before and after test is ≤±5%.	Apply tension to outlet terminal axis and make it act in sample main body direction; apply 10N load for 10 .

七,Package size of tray tape

Points for attention:

1.The accumulated error of any continuous 10 ratchet holes shall not exceed ± 0.2mm;

2 ,The non parallel distance of 250 mm in the length direction of the carrier belt shall not exceed 1 mm;

3 , The R angle of undeclared is 0.2-0.3, and the stripping angle of undeclared is 5 °;

4 , Comply with EIA-481-d and ROHS requirements;

5 , Thickness: 0.30 ± 0.05mm;

6 ,05 07 10D all series adopt 15 inch reel and 24 inch Feeder placement machine.

Appendix I: Form of VI Characteristic Curve

Current Model Voltage	10-3	10-2	10- 1	100	101	102	103
05D271	270	330	380	420	490	580	/
05D471	470	580	640	720	840	1020	/
05D511	510	640	700	780	900	1120	/
05D561	560	700	740	800	950	1200	/
07D271	270	320	370	390	440	520	720
07D471	470	560	620	670	760	900	1100
07D511	510	620	680	720	820	960	1250
07D561	560	660	700	740	850	1050	1290
10D271	270	310	360	380	430	500	640
10D471	470	540	600	650	740	820	1050
10D511	510	600	650	700	790	880	1190
10D561	560	610	660	710	830	930	1260

附件二: Appendix II: Form of Pulse Derating Curv

Specificati on/Model	Pulse Width	50us				100us				500us
	Current	5A	10A	50A	100A	5A	10A	50A	100A	5A	10A	50A	100A
05D	Times	104	102	X	X	102	10	X	X	10	X	X	X
07D		106	104	2	X	105	103	X	X	102	2	X	X
10D		∞	∞	103	10	∞	105	102	2	106	103	1	X
14D		∞	∞	104	103	∞	106	103	102	106	104	2	1
20D		∞	∞	105	104	∞	∞	104	103	∞	106	103	101

Please see the specification

SMD datasheet(1).pdf

Uchi was established in 2006 in Dongguan, China. 

After years of development, Uchi has become a large scale hi-tech enterprise that specialized in development and production of complete series of MOV,PTC, NTC series, PPTC series, Fuse(ALL TYPE),Resistor、integrated circuit 、 Capacitor, surge protector and protective devices of lightning protection products. It ranks front in the industry and has heartquarter in Hong Kong. With its excellent technology and quality products, Uchi has won wide recognition of overseas customers. Saini Impex PVT.LTD is our authorized sole distributor in india .

China's leading enterprise of circuit protection components​

Our strength ：

A large number of product series in our factory have passed the certification of various international standards




Factory Tour​ ：

Advanced equipment, lean production

Uchi boasts with a production base that covers an area of nearly 15000 square meters.
 

We successively imported high-tech fully automated production equipments and high precision testing instruments and have put into production to realize the automation, large scale and standardization.

Uchi has a galaxy of hi-tech talent teams headed up by national class experts to engage in the work of product development, product quality control, sales andservice technical support, etc., and has successively obtained tens of certificates of appearance patents, utility patents and inventions.
 

To guarantee the quality, we successfully passed the certification of ISO9001:2008 quality management system, scientific and efficient managing mode to carry out lean production and form scientific and efficient quality control system. The products are certified with UL, CUL, TUV, VDE, CSA and SGS, RACH 73 environmentally friendly testing certifications.

Exquisite quality at customers' favor

Uchi is an export membership of Alibaba with free import and export rights. It is appraised as Guangdong Famous Star Enterprise and Dongguan Private Enterprise. Our products have doubled and redoubled to provide more kinds and high quality and reliable products and service. Our products mainly consist of: 

Metal Oxide Varistor
DIP Varistor & SMD Varistor
Thermally Protected Varistor

DC-Link Capacitor for New energy vehicles supporting the HEVEV

Automotive Fuse Links for EV Plugin HEV FCEV
PTC Thermistor

NTC Thermistor

PPTC Resettable Fuse

Thermal Fuse

Auto Blade Fuse

Glass Fuses

Metal Film Resistor

Carbon Film Resistor

Cement Resistor

NTC Temperature Sensor

CDS Photoconductive Cell

Our products are widely used in New energy vehicles, home appliance, medical equipment, office equipment, communication equipment, phone battery, electronic calendar, electronic thermometer and temperature controller to cover military telecommunications, IT, automobile and consumer electronic fields.
Cooperation with good faiths to win in the market.
Excellent quality sincere service is the key to the success of Uchi. 

In the future Uchi will still stick to the tenets of "Quality first, customer foremost." "First class quality, first class service and customersatisfaction" to manufacture the high quality, technically advanced and reasonable prices products. We hope to trigger with global partners the revolution in resistor products. We cordially welcome friends from home and abroad to visit us for guidance and cooperation.