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250 ohm Axial Lead Metal Film Fuse Resistor Color Band with 5% Resistance Tolerance
Features:
1. Good heat-durability. Low temperature coefficient, low noise, high load power
2. Can be fusible during the stated time for protecting the circuit once wording at the required overload voltage.
3. Operating ambient temperature: :-55℃～+125℃
4. The surface is brick red nonflammable coating and indicate a white ring at the behind of the precision color ring.
5. Resistance tolerance: ±2%、±5%、±10%
Construction Drawing:
A、 High heat exchanged Ceramic core.
B、 High stability Electric conduction film.
C、 Iron Cap.
D、 Silicon resin coating.
E、 Color Ring.
F、 Tinned copper lead wire or CP lead wire.
Product Specification
Part No. |
Power |
Resistance range |
Dimensions(mm) |
Max. working voltage |
Max. overload voltage |
Max. insulation voltage |
||
L±1 |
D±0..5 |
d±0.05 |
||||||
CFM014 |
1/4W |
0R1-1K |
6.0 |
2.3 |
0.45 |
200V |
400V |
300V |
CFM12S |
1/2WS |
0R1-1K |
6.0 |
2.3 |
0.45 |
250V |
400V |
300V |
FMF012 |
1/2W |
0R1-1K |
9.0 |
3.2 |
0.58 |
250V |
500V |
500V |
FMF01S |
1WS |
0R1-1K |
9.0 |
3.2 |
0.58 |
350V |
500V |
500V |
FMF01B |
1W |
0R1-1K |
11 |
4.5 |
0.75 |
350V |
700V |
710V |
FMF02S |
2WS |
0R1-1K |
11 |
4.5 |
0.75 |
350V |
700V |
710V |
FMF02B |
2W |
0R1-1K |
15 |
5.0 |
0.75 |
350V |
700V |
710V |
FMF03S |
3WS |
0R1-1K |
15 |
5.0 |
0.75 |
350V |
700V |
710V |
Fusing Characteristics:
Fusing Spec. |
Multiple Rated power |
Rated resistance range |
||
＜2R |
2-10R |
＞10R |
||
Fusing time(s) | ||||
G |
12 |
|
60 |
30 |
B |
16 |
60 |
30 |
15 |
C |
25 |
30 |
15 |
7.5 |
J |
25 |
|
|
|
Rated Power Derating Curve：
Fusing 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 . |
±250ppm/℃ |
Short time overload |
1/4~4W:According 5 times rated voltage, 5~10W:According 10 times rated power to account the voltage or Max.overload voltage (get the lower) for 5 seconds. |
ΔR≤±（1%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≤±（1%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≤±（1%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≤±（5%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≤±（5%R0+0.05Ω） |
Nonflammability |
Respectively load AC voltage by 5、10、16 times rared power for 5 minutes. |
No visible flame. |
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 250 ohm axial lead metal film fuse resistor color band with 5% resistance 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.
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