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ZERO OHM RESISTOR / JUMPER WIRE
ZERO OHM RESISTOR / JUMPER WIRE
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WIRE WOUND MELF RESISTORS
WIRE WOUND MELF RESISTORS

METAL FILM MELF RESISTORS

The WMF MELF series Metal Film MELF Resistors are manufactured using the latest Magnetron Vacuum Sputtering System. This ensures a very stable resistive medium having a very low temperature coefficient. The resistors are insulated with layers of lacquer. The WMF MELF series resistors are suitable for surface mount technologies.
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Description

TECHNICAL SPECIFICATIONS
Size Power Rating at 70°C(W) Ambient Temperature (°C) Max Working Voltage (V) Max Overload Voltage (V) TCR (PPM/ °C) Resistance Range (Ω)
Tolerances: 1% 2% 5%
0102 0.125W -55 ~ +155 150 300 ±100; ±50; ±25 0.22 ~ 2M2
0204 0.125W -55 ~ +155 200 400 0.1 ~ 2M2
0 .25W
0207 0.25W -55 ~ +155 250 500 0.1 ~ 10M
0 .5W
0309 0.5W -55 ~ +155 350 700
Type Dimensions(mm)
L D Max D1 K Min
102 2.0±0.1 1.35 1.25 ±0.05 0.3
204 3.5±0.2 1.55 1.4±0.1 0.5
207 5.9 ± 0.2 2.4 2.2 ± 0.1 1
309 8.5 ± 0.2 3.4 3.2 ± 0.2 1
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CHARACTERISTICS

CHARACTERISTICS
Terminal Strength no damage
Δ R max. ± 0.5%
Resistance to soldering heat (350ºC) Δ R max. ± 1%
Solderability good tinning
no damage
Temperature Cycling
-55 ºC to ± 155 ºC		 Δ R max. ± 0.25%
Life 1000 hours at Rated Power Δ R max. ± 1%
Short time overload Δ R max. ± 0.5%
Resistance to solvents no damage
STANDARD RESISTANCE VALUES
E 24 Series
10 11 12 13 15 16 18 20 22 24 27 30
33 36 39 43 47 51 56 62 68 75 82 91
E 96 Series
100 102 105 107 110 113 115 118 121 124 127 130 133 137 140 143
147 150 154 158 162 165 169 174 178 182 187 191 196 200 205 210
215 221 226 232 237 243 249 255 261 267 274 280 287 294 301 309
316 324 332 340 348 357 365 374 383 392 402 412 422 432 442 453
464 475 487 499 511 523 536 549 562 576 590 604 619 634 649 665
681 698 715 732 750 768 787 806 825 845 866 887 909 931 953 976

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