Murata DHR4E4C681K2BB Ceramic Disc Capacitor Equivalent General Purpose 680pF 15000 Volts 10%

Murata DHR4E4C681K2BB Equivalent General Purpose High Voltage Ceramic Disc Capacitors 680pF 15000Volts 10%

■ Features

1. Small size
2. Excellent heat-proof, humidity-proof and high
dielectric strength voltage.
3. Coated with flame-retardant epoxy resin.

4.20 kV rated voltage available on request
• Low losses
• High capacitance in small sizes
• High stability
• Radial leads
• Ceramic singlelayer capacitor

■ Applications

1. Color TV doublers and triplers
2. High voltage DC power supplies (PPCs, X-ray
apparatus, air cleaner, lasers, etc.)
3. Tuning capacitor in focus circuit for display

• TV and monitors • SMPS • DC and pulse high voltage • X-ray equipment

DESIGN

The capacitors consist of a ceramic disc of which both sides are silver-plated. Connection leads are made of tinned copper having diameters of 0.032" (0.81 mm). The capacitors may be supplied with straight leads having lead spacing of 0.375" (9.5 mm), 0.500" (12.7 mm) or 0.750" (19.2 mm). Coating is made of flame retardant epoxy resin in accordance with “UL 94 V-0”.

■ Example

■ Cap.-Temp. Char.

Applications by Series

• DE1: Safety standard certified products
• DE2: Safety standard certified products
• DE6: Safety standard certified products, Automotive
• DEA: General purpose products
• DEB: General purpose products
• DEC: General purpose products
• DEF: LCD backlighting inverter
• DEH: General purpose products
• DEJ: Compliant with Japanese safety laws
• DES: General purpose products

Features by Series

• DE1: IEC60384-14 Class X1/Y1
• DE2: IEC60384-14 Class X1/Y2
• DE6: IEC60384-14 Class X1/Y2 for automobiles
• DEA: High temperature guaranteed low loss type (low heat generation type for temperature compensation)
• DEB: High dielectric constant lead type
• DEC: Rated voltage DC6.3kV
• DEF: For the ballast capacitor of LCD backlight inverter
• DEH: High temperature guarantee low loss type
• DEJ: Based on the Electrical Appliance and Material Safety Law of Japan
• DES: High temperature guaranteed low loss type (low heat generation)

Murata's DE series offers both high voltage and safety standard certified ceramic capacitors. The DE series features a wide range of form factors for specific applications including AC line filters, primary-secondary coupling on switching power supplies, high-frequency pulse circuits, horizontal resonance circuits, and decoupling circuits for power supplies.

Now Available! Murata has launched a surface mount type IEC 60384-14*1Y1*2 class safety certified ceramic capacitor for low-profile power supplies. These capacitors are ideal for all AC-DC switching power supplies where a low-profile is sought for compact AV equipment, LED illumination, or 1U*3 rack-mounted equipment.

■ !Caution (Rating)

When DC-rated capacitors are to be used in AC or ripple current circuits, be sure to maintain the Vp-p value of the applied voltage or the Vo-p which contains DC bias within the rated voltage range. When the voltage is applied to the circuit, starting or stopping may generate irregular voltage for a transit period because of resonance or switching. Be sure to use a capacitor with a rated voltage range that includes these irregular voltages

2.Operating Temperature and Self-generated Heat

Keep the surface temperature of a capacitor below the upper limit of its rated operating temperature range. Be sure to take into account the heat generated by the capacitor itself. When the capacitor is used in a highfrequency current, pulse current or similar current, it may self-generate heat due to dielectric loss. The applied voltage load should be such that the capacitor's selfgenerated heat is within 10°C at an atmosphere temperature of 25°C. When measuring, use a thermocouple of small thermal capacity-K of ø0.1mm in conditions where the capacitor is not affected by radiant heat from other components or surrounding ambient fluctuations. Excessive heat may lead to deterioration of the capacitor's characteristics and reliability. (Never attempt to perform measurement with the cooling fan running. Otherwise, accurate measurement cannot be ensured.)

Failure to follow the above cautions may result, worst case, in a short circuit and cause fuming or partial dispersion when the product is used.

■ !Caution (Storage and Operation Condition)

Operating and storage environment

The insulating coating of capacitors does not form a perfect seal; therefore, do not use or store capacitors in a corrosive atmosphere, especially where chloride gas, sulfide gas, acid, alkali, salt or the like are present. And avoid exposure to moisture. The capacitor is designed to be used in insulating media, such as epoxy resin, silicone oil, etc. There must be 3mm or more of insulating media for each direction of the capacitor. Before cleaning, bonding, or molding this product, verify that these processes do not affect product quality by testing the performance of a cleaned, bonded or molded product in the intended equipment. Store the capacitors where the temperature and relative humidity do not exceed -10 to 40 degrees centigrade and 15 to 85%. Use capacitors within 6 months. FAILURE TO FOLLOW THE ABOVE CAUTIONS MAY RESULT, WORST CASE, IN A SHORT CIRCUIT AND CAUSE FUMING OR PARTIAL DISPERSION WHEN THE PRODUCT IS USED.

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.