MELF-MFR Series

MELF Metal Film Precision Resistors

High Power Fixed Type & Adjustable Type Wirewound Resistors.


Features:
  • Advanced Thin Film Technology
  • Excellent Over All Stability
  • Farce Fitted Steel Caps, Tin Plated on Nickel Bamer

T/C : 10ppm ~ 100ppm / Tolerance : 0.01% ~ 5%
Size POWER
RATING
MAX.OVERLOAD
VOLTAGE
T.C.R        
0102 1/8W 150V 300V ±15ppm
±25ppm
±50ppm
100ppm
50-56K 1-1M 022-2M 022-2M
0204 1/8W 150V 300V 100-56K 1-1M 022-2M 022-2M
1/4W 200V 400V 100-56K 1-1M 05-2M 05-2M
0207 1/4W 200V 400V 10-56K 1-5M 022-5M 022-5M
1/2W 300V 600V 10-56K 1-5M 022-5M 022-5M
1W 400V 700V 10-56K 1-5M 05-5M 05-5M
  1W 500V 1000V ±50ppm
±100ppm
10-56K 1-5M 0.1-1M 0.1-1M
  2W 500V 1000V 10-56K 1-5M 0.1-1M 0.1-1M
  3W 500V 1000V 10-56K 1-5M 0.1-1M 0.1-1M
Item Characteristics Test Method
Operating Temp. Range -55℃~155℃  
Temperature Coefficient ±100ppm/℃;
±50ppm/℃
±25ppm/℃
±15ppm/℃
JIS-C5202;5.2
Short time overload ±(0.5%+0.05Ω) Rating voltageX2.5 or Max.
overload voltage for 5 sec.
Whichever less
Pulse overload ±(0.5+0.05Ω) Rating voltageX3 or Max.
pulse overload voltage for
10,000 cycle (2 sec. "on" 25 sec. "off"),
Whichever less
Load Life in Humidity ±(0.5+0.05Ω) -55℃(30min.)/
85℃(30min.) for 5 cycl
Load Life in Humidity ±(0.5+0.05Ω) 40℃±2℃,
90%~95% RH,
100h 1.5h "on"/0.5h "off" cycle
Load Life ±(0.5+0.05Ω) 70℃±2℃,
100h, 1.5h "on"/0.5h "off" cycle
Resistance to
sodering heat
±(0.5+0.05Ω) 260℃±5℃,5 sec ±1sec
Solderability 90% Coverage/Min 235℃±5℃,2 sec ±0.5sec
Bending test ±(0.5+0.05Ω) Holding point width 90mm,
Bending 5 mm, 1time
Non-combustibility The resistors shall withstand
Overload test in accordance with Article
UL-94, V-0 without producing a frie hazard.
 

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MELF Metal Film Precision Resistors
High Power Fixed Type & Adjustable Type Wirewound Resistors. Features: Advanced Thin Film Technology Excellent Over All Sta ...
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