1 ohm Surge Led Metal Film Chip Resistors with 0.1% Tolerance

Features:

1. Low temperature coefficient, high precision, good high frequency performance.

2. Operating ambient temperature: :-55℃～+155℃

3. Film the metal in Vacuum, the surface coats blue resin with the good waterproof.

4. Resistance tolerance: ±0.1%、±0.25%、±0.5%、±1%、 ±5%

 

Structural Drawing:

A、 High heat exchanged Ceramic core.

B、 High stability Electric conduction film.

C、 Iron Cap.

D、 Epoxy resin coating.

E、 Color Ring.

Product Specification

Part No.	Type	Power	Resistance range	Dimensions(mm)		Max. working voltage	Max. overload voltage	Max. Pulse voltage	Max. insulation voltage
				L±0.5	D±0..5
MEF020414	0204	1/4W	1R-10M	6.0	2.3	250V	500V	300V	300V
MEF020412	0204	1/2W	1R-10M	6.0	2.3	250V	500V	500V	500V
MEF020712	0207	1/2W	1R-10M	9.0	3.2	300V	600V	600V	600V
MEF02071S	0207	1W	1R-10M	9.0	3.2	350V	700V	700V	700V
MEF04112S	0411	2W	1R-10M	11.0	4.5	6.0	800V	800V	800V

Rated Power Derating Curve:

Perfoamance Test: 

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature and normal temperature added 100℃,calculate per℃ resistance value change rate .	±5~50ppm/℃
Short time overload	2.5 × rated voltage or Max.overload voltage (get the lower) for 5 seconds.	ΔR≤±（0.5%R0+0.05Ω）
Pulse overload	At 4 × rated voltage or Max. pulse overload voltage (get the lower) cycle 10000±200 times(1 second on, 25 seconds off ).	ΔR≤±（1%R0+0.05Ω）
Resistance to soldering heat	Immerge into 350±10℃ tin stove for 2~3 seconds.	ΔR≤±（0.5%R0+0.05Ω）
Solderability	Immerge into 245±3℃ tin stove for 2~3 seconds.	The area of soldering is over 95%
Temperature cycling	At  -55℃ for 30 min, then at +25℃ for 10~15 min, then at +125℃ for 30 min, then at +25℃ for 10~15 min, total 5 cycles.	ΔR≤±（0.5%R0+0.05Ω）
Load life in humidity	Overload rated voltage or Max.working voltage (get the lower) for 1000 hours (1.5 hours on and half-hour off ) at the 40±2℃ and 90~95% relative humidity.	ΔR≤±（2%R0+0.05Ω）
Load life in heat	Overload rated voltage or Max.working voltage (get the lower ) for 1000 hours (1.5 hours on and half-hour off) at the 70±2℃.	ΔR≤±（2%R0+0.05Ω）

Product Qualification

Certificates:

Means of Delivery:

Our Shipment:

1. We will ship the goods within 1-3 work days after payment confirmation.

2. We can ship goods via DHL/Fedex/UPS/TNT/EMS. Pls tell us which you prefer. We suggest DHL, because it is cheapest and fast in China.

3. We are not responsible for any accidents, delays or other situations related with shipping company. But we will keep focus on the package tracking.

4. Any import fees or charges are the buyer's responsibility.

 

FAQ:

Q1: How to guarantee the Quality of Industrial Parts?

A1: We have the integrated system for industrial parts quality control. We have IQC(income quality control), IPQCS(in process quality control section), FQC(final quality control) and OQC(out-going quality control) to control each process of industrial parts production.

 

Q2: What’s the Advantage of Your Parts for Industry Products?

A2: The advantage of our products is the competitive prices, fast delivery and high quality. Our employees are responsible-oriented, friendly-oriented and diligent-oriented. Our products are featured by strict tolerance, smooth finish and long service time.

Q3: Why Should Choose Us?

1. We have more than 20 years of experience in electronics industry and strictly follow the international standard in manufacturing.

2. We cooperate with a large number of high-quality suppliers.

3. We have a professional team, our customer concept is “customer first, excellent service”.

About Us

We are specializes in a great variety of resistors, (low, high resistance value supply by your request). It can be widely used in various kinds of industry line, such as TV, Audio, Monitor, New Energy, Lighting, Transducer, Power Supply, UPS, Digital Products, Charger, Household Appliances, Apparatus, Electric Welding Machine, Elevator and other industries.

PakHeng Electronics is one of the leading 1 ohm surge led metal film chip resistors with 0.1% tolerance manufacturers and suppliers in China, offering the free sample and competitive price. Welcome to wholesale the high quality bulk resistors made in China from us. It if of good performance and high safety.