LMF HMF LCM HCM High Precision flammeproof Metal Film Fixed Resistors
Nonflammabe Metal Film Resistors(LMF/HMF/LCM/HCM)
Features:
1, Low temperature coefficient, high precision, and good high frequency performance.
2, Operating ambient temperature:-55 to +155.
3,Film the metal in Vacuum with the good waterproof.
4, The surface is nonflammable, the normal size coating is brick red and the small size coating is green.
5, Resistance tolerance:±1%,±5%.
Performance Test:
Test Item Test Condition Performance
Temperature coefficient ±350ppm/
Short time overload R≤±(1%R0+0.05R)
Pulse overload R≤±(2% R0+0.05R)
Resistance to soldering heat R≤±(1% R0+0.05R)
Solerability The soldering area is over 95%
Temperature cycling R≤±(1% R0+0.05R)
Load life in humidity R≤±(5% R0+0.05R)
Load life in heat R≤±(5% R0+0.05R)
Nonflammability No visible flame.
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.
Dimensions and Voltage Performance:
Part No. | Power | Resistance range | Dimensions(mm) | ing voltage | Max.overload voltage | Max.Pulse voltage | Max.insulation voltage | ||
L±1 | D±0.5 | d±0.05 | |||||||
HCM016 HMF016 | 1/6W | 0R~22M | 3.5 | 1.7 | 0.40 | 150V | 300V | 500V | 300V |
LCM14S LMF14S | 1/4WS | 0R~22M | 3.5 | 1.7 | 0.40 | 150V | 300V | 500V | 300V |
HCM014 HMF014 | 1/4W | 0R~22M | 6.0 | 2.3 | 0.45 | 250V | 500V | 750V | 500V |
0.52 | |||||||||
LCM12S LMF12S | 1/2WS | 0R1~22M | 6.0 | 2.3 | 0.45 | 250V | 500V | 750V | 500V |
0.52 | |||||||||
HMF012 | 1/2W | 0R1~22M | 9.0 | 3.2 | 0.58 | 350V | 700V | 1000V | 700V |
LMF01S | 1WS | 0R1~22M | 9.0 | 3.2 | 0.58 | 350V | 700V | 1000V | 700V |
HMF01B | 1W | 0R1~22M | 11.0 | 4.5 | 0.75 | 500V | 1000V | 1000V | 1000V |
LMF02S | 2WS | 0R1~22M | 11.0 | 4.5 | 0.75 | 500V | 1000V | 1000V | 1000V |
HMF02B | 2W | 0R1~22M | 15.0 | 5.0 | 0.75 | 500V | 1000V | 1000V | 1000V |
LMF03S | 3WS | 0R1~22M | 15.0 | 5.0 | 0.75 | 500V | 1000V | 1000V | 1000V |
HMF03B | 3W | 0R1~22M | 24.0 | 8.0 | 0.75 | 700V | 1200V | 1200V | 1000V |
LMF05S | 5WS | 0R1~22M | 24.0 | 8.0 | 0.75 | 700V | 1200V | 1200V | 1000V |
Performance 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 . | ±350ppm/℃ |
Short time overload | 2.5 × rated 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≤±(2%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 ing 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 ing 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 |
Part No.Regulation:
LMF | 01B | F | 0 | T520 | 10K00 |
Product Name | Power | Tol. | Special code | Froming | Ohm |
Nonflammable Metal Film Resistors | 016=1/8W 14S=1/4WS 12S=1/2WS 01S=1WS 02S=2WS 03S=3WS 05S=5WS 016=1/6W 014=1/4W 012=1/2W 01B=1W 02B=2W 03B=3W
| F=±1% J=±5%
|
| T260=T26 T520=T52 T710=T71 M001=M F001=F B001=B
| 0R100=0.1Ω 0R220=0.22Ω 10R00=10Ω 10K00=10KΩ 1M000=1MΩ
|