2Pin 53mm Single Disc VDR Metal Oxide Varistor MOV Block 53D271K 270V 10% 70KA For UPS Overvoltage Protection

2Pin 53mm Single Disc VDR Metal Oxide Varistor MOV Block 53D271K 270V 10% 70KA For UPS Overvoltage Protection

Description

The varistors consist of a disc of low-b ZnO ceramic material with two solid copper leads (S20 types only) or copper clad steel wire. The wires have a matte tin plating. They are coated with a layer of ocher colored halogen-free epoxy, which provides electrical, mechanical and climatic protection. The encapsulation is resistant to all cleaning solvents in accordance with IEC 60068-2-45.

The 53D series radial leaded varistors provides an ideal circuitprotection solution for lower DC voltage applications by offeringhigher surge ratings than ever before available in such smalldiscs.The maximum peak surge current rating can reach up to 70KA(8/20 μs pulse) to protect against high peak surges, includingindirect lightning strike interference, system switching transientsand abnormal fast transients from the power source.

Features

• 53D metal oxide varistor (MOV), with epoxy resin, peak current 70kA.
• Diameter and thickness is controlell effectively within the design scale.
• Peak current is reached the world leading level. It can afford 8/20us impulse, peak current Imax 40kA punch 2 times.
• Thermal stability. Soldering thermal cutoff member with 145 degree, the cutoff time is no less than 5 senconds under 1A current; the cutoff time is 3-5 seconds under 1.5A current.

• Low b high purity zinc oxide disc
• Halogen free insulating epoxy coating
• Zinc oxide disc, HF epoxy coated
• Straight leads and kinked leads
• Straight leads with flange

Application

Overvoltage and transient voltage protection

Dimension (mm)

Thickness

Metal Oxide Varistor Specification

MOUNTING

The varistors are suitable for processing on automatic insertion and cutting and bending equipment.
Varistors with flanged leads provide better positioning on printed-circuit boards (PCB) and more accurate control over component height. This is important for hand mounting and automatic insertion techniques; see outlines of flanged leads drawing.

Typical soldering

235 °C, duration: 5 s (Pb-bearing)
245 °C, duration: 5 s (lead (Pb)-free)
Resistance to soldering heat
260 °C, duration: 10 s max.

INFLAMMABILITY

The varistors are passive non-flammable.
The encapsulation is made of flammable resistant epoxy in accordance with UL 94 V-0.

Aolittel Technology Co.,Ltd. , specilized in production of various fuse , fuse holder and associated Products with plant area 5,000 m² located in Dongguan city , which is widely known as World's Factory .

Our R&D consist of experienced engineers with rich occupational history from world famous brand .Our production depart always keep at least 200~300 well-trained workers ,as well as some freshman for backup . In addition, we have sevaral market investgation specilists to understand the present marketing trend (including new products/approvals/cost etc.) and cooperated with development engineers to keep up with times. Therefore, we can produce reliable products for customers with competitive price and fast delivery ! This is long-term basis so that our position will be invincible .

With advanced production equipment, strong production capacity, strong technical force, can efficiently provide customers comprehensive fuse selection solution.We won customers' trust with more than 10 years' experiences and strong technical support, welcome to inquiry us and let's talk more ! 

Based on our good reputation in the industry, we have formed good relationship with most of industry manufacturer, we are like-minded friends but not competitor .Hence,they asked us to expand their brand in right time with their support on price ,approvals,delivery,services etc. We are pleasure to provide customers their brand if our advantages provided can satisfied customers. 

Aolittel belong to member of global conglomerate named Hontac Technology (HK) Company LIMITED .Hontac contributed huge investment for china mainland since Hontac have invested about 10 factories and to be shareholder of these manufactuer, most of them is belong to protection components industry as well as finished products. Hope you have noticed product range is wide, products except for fuse and fuse holders are belong to these manufacturers and we are excuting joint sales policy according to Hontac headquarters. Main product filed is overcurrent production , overvoltage production components,over temperature protection components, PCB,etc circuit protection solution provider.Products through the CCC, CQC, VDE, TUV, UL, SGS, CSA, CUL, PSE, CE,KC certification, comply with ROHS environmental requirements.