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melf resistor carbon film - rdm series

melf resistor carbon film - rdm series

melf resistor

features

  • coating color : yellow.
  • marking : color code (3 color band).
  • free direction for mounting due to cylindrical design.
  • high solderability due to specially plated electrodes.
  • electrodes strength is higher than flat chip resistors.
  • lower current noise than thick film flat chip resistors.
  • suitable for reflow, flow and iron soldering.
quick reference data
type rdm73s rdm73p rdm74s rdm74p rdm16m rdm17s rdm17p
din-44061 type 0204 0204 0207 0207 0207 0309 0309
power rating (w) 1/8 1/4 1/4 1/2 1 1/2 1
resistance range (Ω) e24 1 ~ 1m
resistance tolerance g: ±2%         j: ±5%
max. working voltage (v) 200 250 300 300 350 350 350
max. overload voltage (v) 400 500 600 600 700 700 700
packaging
& qty (pcs)
case 60000 60000 24000 24000 12000 12000 24000
reel 3000 3000 1500 1500 1000 1000 1500

dimensions (mm)
l 3.5±0.2 3.5±0.2 5.9±0.2 5.9±0.2 5.9±0.2 8.5±0.2 8.5±0.2
c (min.) 0.5 0.5 0.5 0.5 0.5 0.5 0.5
d1 1.40±0.15 1.40±0.15 2.2±0.1 2.2±0.1 2.2±0.1 3.2±0.2 3.2±0.2
d2 (max.) 1.55 1.55 2.4 2.4 2.4 3.4 3.4
d3 (max.) 1.25 1.25 2.1 2.1 2.1 3.0 3.0

characteristics
item characteristics test method
temp. coefficient (ppm/°c) 0 ~ -350 0 ~ -600 0 ~ -1000 0 ~ -1500 jis-c(5202-5.2)
>1/4w <10k 11k~115k 160k~2m2 -
1/8w <1k 1k1~47k 51k~470k 510k~1m
short time overload ± (1.0% + 0.05Ω) jis-c(5202-5.5)
intermittent ± (1.0% + 0.05Ω) jis-c(5202-5.8)
resistance to soldering ± (1.0% + 0.05Ω) jis-c(5202-6.4)
solderability 95% coverage min jis-c(5202-6.5)
moisture resistance ± (5.0% + 0.1Ω) jis-c(5202-7.9)
load life ± (3.0% + 0.1Ω) jis-c(5202-7.10)

how to order
rdm74p1r2jt
1234
1 part number
2 resistance value (Ω)
coderesistance value (Ω)
1r21.2Ω
12r12Ω
120r120Ω
12k12kΩ
3 resistance tolerance (%)
coderesistance tolerance (%)
g±2%
j±5%
4 package
codepackage
ttaping reel
pbulk