TUV 220V DC Surface Mount Varistor 07D271K For Overvoltage Protection

Product Description

 

Low Medium Voltage Surface Mount Varistor 07D271K For Overvoltage Protection

 

Description Of The Surface Mount Varistor

 

SMD Varistor 07D271K is designed to protect electronic equipment against voltage surges in the low and medium voltage region. They offer direct SMD equivalents to leaded disc varistors of 5 ,7 and 10mm sizes. The thermoplastic encapsulation is non-flammable and UL 94 V-0 rated...

 

 

Features Of The Surface Mount Varistor

 

* Wide operating temperature -40~+125C

* Available in tape and reel packaging for automatic pick-and-place

* Certificated by CQC UL TUV

* Surface mount devices 

* Fully automatic production line

 

 

Applciation Of The Surface Mount Varistor

 

Varistors can be used as suppressors to protect devices and circuits from transient abnormal voltages including an ESD (electrostatic discharge) and a lightning surge. For protection from a relatively large surge current (100A to 25kA), leaded disk varistors and SMD disk varistors are suitable.

* AC LED

* DOB

* LED Driver

* Power Supply

* Floodlight

* LED Lighting

* Electricity meters

* White goods

* Entertainment electronics

* Power supplies

* Distribution panels

 

 

Agency Approvals Of The Surface Mount Varistor

 

Certification	CHINA	CQC	GB/T10193-1997	07D:CQC18001202948
	USA/Canada	UL	UL1449	E481249-20180122
	Germany (EU)	TUV	IEC61051	B 094255 0002 Rev.00
	ROHS	SGS/SVHC	SGS is updated annually SVHC is effective for a long time	07DSGS:CANEC2121716204 SVHC:CANEC2200885702

 

 

Dimensions, Appearance Identification and Packaging Of The Surface Mount Varistor(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!

Model JYVDR～	Pad A	Pad B		Pad center distance C	Diameter D	Height H±1.0	Thickness T	Coating material and remarks (insulating paint)
	Φa	b1	b2
05D271	2.7	3.5	2.5	5.75	5.0	9.1	2.0	Blue 271:270VDC±10%； White 471:470VDC±10%； Yellow 511:510VDC±10%; Red 561:560VDC±10% 15 inch reel tape(MPQ): 5D271 4000PCS; 5D other model 3000PCS; 7D271 3000PCS. 7D other model 2000PCS; 10D271 2000PCS. 10D other model 1500PCS;
05D471 05D511							3.0
07D271	3.3	3.8	2.5	6.75	7.0	11.1	2.0
07D471 07D511 07D561							3.0
10D271	4.0	4.0	2.5	8.25	10.0	14.2	2.0
10D471 10D511 10D561							3.0
05D 07D 10D All series use 15-inch reel and 24-inch feeder placement machine

 

 

Electrical Performance Of The Surface Mount Varistor

 

Model JYVDR～	Varistor Voltage	Max Allowable Voltage		Max Clamp Voltage(8/20us)		Max Energy	Max Static Power	Capacitance	Leakage Current	Approved Temperature
	VDC	VAC	VDC	VDC	IP	Combined wave(A)	W	pF		(℃)
05D271	270±10%	170	220	480	8A	500A(1000V)	0.1	100	≤20uA	-40~125
05D471	470±10%	300	380	810	10A			65
05D511	510±10%	325	415	870				60
07D271	270±10%	170	220	450	15A	1.0KA(2000V)	0.25	170
07D471	470±10%	300	380	770	20A			115
07D511	510±10%	325	415	840				110
07D561	560±10%	350	450	925				100
10D271	270±10%	170	220	450	35A	2.0KA(4000V)	0.4	380
10D471	470±10%	300	380	760	40A			250
10D511	510±10%	325	415	835				230
10D561	560±10%	350	450	920				210

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

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

Working Voltage Environment	Forestage Varistor Parameter	Back-end Varistor Parameter	Remarks
110VAC±20%	270VDC±10%	/	In view of the insufficient voltage withstand capability of the IC, the two-stage varistor can be upgraded to 4KV lightning protection. The user can choose the varistor size according to the requirements of the anti-surge level.
220-230VAC±20%	510VDC±10%	470VDC±10%
240VAC±20%	560VDC±10%	510VDC±10%	The combination is recommended for users in Indian and Brazil.

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.

 

 

Curve diagram of wave soldering Of The Surface Mount Varistor

 

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). 

 

 

Package Of The Surface Mount Varistor

 

 

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.

Model JYVDR～	MPQ (QTY/REEL) (PIECES)	WEIGHT/REEL(KG)	QTY PER REEL(PIECES)	WEIGHT PER CARTON(KG)
05D271	4000	1.5	20000	8
05D471	3000	1.5	15000	8.4
05D511	3000	1.5	15000	8.4
07D271	3000	1.8	15000	9.5
07D471	2000	1.7	10000	9.1
07D511	2000	1.7	10000	9.1
07D561	2000	1.7	10000	9.1
10D271	2000	2	10000	11
10D471	1500	2.2	7500	12
10D511	1500	2.2	7500	12
10D561	1500	2.2	7500	12