Disc Chip Zinc Oxide Varistor -40-125 Degree With ROHS Certification

Disc Zinc Oxide Chip Varistor 05D471K 470V 500A 0.1W With CQC UL TUV Certificates

Description Of The Chip Varistor 05D471K

chip varistor 05D471K designed as standard UL1449 and IEC61051, for linear LED application, insulated coating and high surge type can withstand inrush surge current , replace dip varistor , tape in reel package, produced by automatic machines, cheaper and easy to be installed.

Features Of The Chip Varistor 05D471K

* Wide operating temperature -40~+125C

* Tape in reel package

* Compact design

* Certificated by CQC UL TUV

* Surface mount devices 

* Fully automatic production line

Applciation Of The Chip Varistor 05D471K

* AC LED

* DOB

* LED Driver

* Power Supply

* Floodlight

* LED Lighting

Intellectual Property Of The Chip Varistor 05D471K

Agency Approvals Of The Chip Varistor 05D471K

Dimensions, Appearance Identification and Packaging Of The Chip Varistor 05D471K(mm)

Highly Recommended:
1. In the drawing board, it is recommended that the A solder joint be used as the L line, the B solder joint

as the N line, and the copper skin connected to the B solder joint is routed around the pressure-sensitive

chip circle (the entire diameter D should be regarded as belonging to the A solder joint.

2. For the sake of safety arcing, the circular edge of the chip should be at least 2.5mm away from any other

conductive device, as shown in the figure above (in order to prevent mutual displacement with other devices

during patching, if the space allows, please reserve the larger the interval is. Okay.)
3. The use of varistors in DC circuits has unfavorable factors. It is not recommended to use varistors in

rectified DC circuits. Please consider carefully or contact our company at 18128566098 (sales1@ampfort.net),

thank you!

Electrical Performance Of The Chip Varistor 05D471K

For different voltage application environments, we recommend the following pressure sensitive

combinations to provide overvoltage, surge and lightning stroke protection for ACLED. 

Since pressure sensitive resistor is easy to degrade under the environment with strong voltage fluctuation,

it is required to select the combination with high pressure sensitive voltage value as much as possible

under the premise that withstand voltage of IC (MOS tube) +lamp bead on lamp board is pretty high

and that voltage has a large fluctuation area; besides, it is necessary to select pressure sensitive
resistor with large circulation and volume as far as possible, without exceeding cost limit.

Acceptance Standard Of The Chip Varistor 05D471K

Sampling should follow GB2828-87 and this Specification.

Using Environment Condition Of The Chip Varistor 05D471K

Curve diagram of wave soldering Of The Chip Varistor 05D471K

The picture above shows the approximate trend of the reflow oven temperature curve on the market. Our

SMD pressure sensor uses the silver electrode of the ceramic body as one of the welding electrodes.

Please pay attention to setting the oven temperature and time (if the highest temperature is 260°C,

please Note that the time is 3-8S, if it exceeds 30S, the protection effect of the varistor will be affected). 

Other Properties Of The Chip Varistor 05D471K

Package Of The Chip Varistor 05D471K

Precautions

1. The cumulative error of any 10 consecutive ratchet holes does not exceed ±0.2mm;
2. The non-parallel distance of 250mm in the length direction of the carrier tape shall not exceed 1mm;
3. The uninjected R angle is 0.2-0.3, and the uninjected demoulding slope is 5°;
4. Comply with EIA-481-D specification and ROHS requirements;
5. Thickness: 0.30±0.05mm;
6. The whole series of 05D 07D 10D adopts 15-inch reel and 24-inch feeder placement machine.

Appendix I: Form of VI Characteristic Curve Of The Chip Varistor 05D471K

Appendix II: Form of Pulse Derating Curve Of The Chip Varistor 05D471K