China Metal Oxide Varistor manufacturer
Guangdong Uchi Electronics Co.,Ltd
Guangdong Uchi Electronics Co.,Ltd Manufactuer of Varistor, Thermistor, Capacitor,Fuse & Resistor since 2006 !
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Quality

Quality Control

Our production line proceed with ISO 9001 2008 Quality system and all our product test comply with ROHS,UL standard in order to supply customer good quality product as accordingly !

 

 

Test Item Test Standard Test method Performance requirements
Zero Power Resistance IEC 60539-1 Immerse samples in the constant temperature bath at 25℃±0.005℃,test steady resistance

Resistance tol ±1%

 

B value IEC60539-1 Immerse samples in the constant temperature bath at 25℃,50℃(or 85℃), test steady resistance,and calculate B value

Resistance tol ±1%

 

Free fall

IEC60068-2-32

 

Fall height: 1.5±0.1m,Surface: Cement , 1 time

No obvious damage, R25 △R/R≤±1%

 

Insulation

IEC60539-1

 

500V pressure on insulation shell test insulation resistance

>500MOhm

 

Withstand voltage IEC60539-1

Withstand voltage: 1500V/AC ,Leakage current:2mA Lasting: 60sec

 

No obvious damage

 

Tension IEC60068-2-21

Pull uniform speed at the end, F>4.0KG(requested by customer)

 

No obvious damage, R25 △R/R≤±1%

 

Vibration Q/HBm 108-94 Test frequency: 10~500Hz,swing: 1.2mm acceleration: 30m/s2 Direction X,Y,Z Time:8Hour/direction

No obvious damage, R25 △R/R≤±1%

 

Steady humidity and heat IEC60068-2-78 Temp:40±2℃ Humidity:92-95%RH Time:1000±24Hour

No obvious damage, R25 △R/R≤±1%

 

Thermal time constant EC60539-1 Immerse in 25℃ water,after thermal balance,immerse in 85℃,resistance arrives 63.2%,calculate total time

<10 sec

 

High temperature storage IEC60068-2-2 Temp:125℃±5℃ Time: 1000±24Hour No obvious damage, R25 △R/R≤±1%
Cold and thermal shock IEC60068-2-14

-40℃~+125℃ T1:30min Cycle time:1000

 

No obvious damage, R25 △R/R≤±1%

 

Knock experiment IEC60068-2-77

Acceleration:250m/s2 Pulse lasting: 6ms Knock times: 1000 Recovery time: 2 Hour

 

No obvious damage, R25 △R/R≤±1%

 

Low temperature storage IEC60068-2-1

Temp: 40±2℃ Time: 1000±24Hour

 

No obvious damage, R25 △R/R≤±1%

 

Salt spray IEC60068-2-11 Temp: 35±2℃ Collection hour : 1.0mL~2.0mL Time: determine per as actual demand

No obvious damage, R25 △R/R≤±1%

 

Certifications

Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: UL
Number: E317616
Issue Date: 2011-07-14
Expiry Date: 2019-07-14
Scope/Range: 05D,07D,10D,14D,20D,25D,32D
Issued By: Underwriters Laboratories Inc.
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: VDE
Number: 40028836
Issue Date: 2009-11-25
Expiry Date: 2015-11-25
Scope/Range: 05D,07D,10D,14D,20D
Issued By: VDE Pruf-und Zertifizierungsinstitut GmbH
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: CQC
Number: CQC1001040611
Issue Date: 2010-01-20
Expiry Date: 2015-01-20
Scope/Range: Metal Oxide varistor 7D
Issued By: CHINA QUALITY CERTIFICATION CENTRE
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: CSA
Number: 1352955(LR 115266)
Issue Date: 2013-04-12
Expiry Date: 2015-04-12
Scope/Range: Metal Oxide varistor 5D & 7D
Issued By: CSA INTERNATIONAL
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: ISO 9001:2008
Number: UQ101392R0
Issue Date: 2011-11-25
Expiry Date: 2014-11-25
Scope/Range: Varistor,thermistor and deguassing resistor
Issued By: Beijing United Intelligence Certification Co.,Ltd.
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: SGS
Number: CANEC1304860002
Issue Date: 2013-04-18
Expiry Date: 2015-04-18
Scope/Range: Metal Oxide Varistor All type
Issued By: SGS-CSTC Ltd.
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: SGS(SVHC)
Number: CANEC1309502701
Issue Date: 2013-07-08
Expiry Date: 2015-07-08
Scope/Range: Metal Oxide Varistor All type
Issued By: SGS-CSTC Ltd.
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Guangdong Province Famous and High quality
Number: Z02J-GD-SY2762
Issue Date: 2013-09-01
Expiry Date: 2016-09-01
Scope/Range: COMPANY
Issued By: The Chinese quality supervision committee
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Trademark Registration Certificate
Number: 5630193
Issue Date: 2009-08-21
Expiry Date: 2019-08-20
Scope/Range: 9 electronics
Issued By: The trademark office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: NON-GOVERMENT RUN SCIEN
Number: 20122701076
Issue Date: 2012-05-02
Expiry Date: 2022-05-02
Scope/Range: guangdong province
Issued By: Dongguan Science And Technology
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: CCPIT
Number: 134403A0/54259
Issue Date: 2013-07-26
Expiry Date: 2018-02-07
Scope/Range: 9 electronics
Issued By: CCPIT
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Guangdong Province Star Enterprises
Number:
Issue Date: 2011-06-20
Expiry Date: 2021-06-20
Scope/Range: COMPANY
Issued By: Alibaba Group
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Guangdong Province Excellent Independent Brand
Number:
Issue Date: 2012-12-07
Expiry Date: 2018-02-07
Scope/Range: COMPANY
Issued By: Federation Of Enterprises In Guangdong Province
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Utility Model Patent
Number: zl201120480909.3
Issue Date: 2011-11-28
Expiry Date: 2021-11-28
Scope/Range: Photoresistor
Issued By: the State Intellectual Property Office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Trademark registration certificate
Number: 9323821
Issue Date: 2012-06-21
Expiry Date: 2022-06-20
Scope/Range: 35
Issued By: The trademark office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: the Patent of appearance design
Number: 1734418
Issue Date: 2011-05-05
Expiry Date: 2021-05-05
Scope/Range: mov varistor
Issued By: the State Intellectual Property Office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Utility Model Patent
Number: 2328732
Issue Date: 2012-08-01
Expiry Date: 2022-08-01
Scope/Range: Photoresistor
Issued By: the State Intellectual Property Office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: Utility Model Patent
Number: 2328934
Issue Date: 2012-08-01
Expiry Date: 2022-08-01
Scope/Range: varstor
Issued By: he State Intellectual Property Office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: the Patent of appearance design
Number: 2307372
Issue Date: 2013-01-23
Expiry Date: 2023-01-23
Scope/Range: earphone
Issued By: The State Intellectual Property Office of the People's Republic of China
Guangdong Uchi Electronics Co.,Ltd Certifications
Standard: the Utility Model Patent
Number: 2668623
Issue Date: 2013-01-23
Expiry Date: 2023-01-23
Scope/Range: earphone
Issued By: The State Intellectual Property Office of the People's Republic of China

Certifications

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