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high precision axial moulded wirewound resistors - bww series

high precision axial moulded wirewound resistors - bww series

wirewound,precision,resistor

feature:

  • axial moulded type.
    high precision.
    high reliability.
    excellent load life stability.
    insulation, moisture proof.
    meets the standards of mil-r-93.
technical specifcations
type rated watts
at 25°c
(w)
resistance range
(Ω)
tolerance
(%)
tcr
(ppm/°c)
dimensions (mm)
min max a±0.25 φb±0.25 φd f
bww-0.5 0.5 0.1 100 ±0.1
±0.25
±0.5
±1
±2
±25
±50
±150
7.0 3.0 0.8 27.0
bww-1 1.0 0.1 1k 11.0 3.0 0.8 31.0
bww-3 3.0 0.1 10k 15.0 5.2 0.8 34.0
bww-4 4.0 0.1 15k 18.0 6.5 0.8 38.0
bww-5 5.0 1 24k 24.0 8.4 1.0 44.0
bww-10 10.0 1 39k 46.5 10.0 1.0 66.0

performance
test items test conditions specifications
operating temp. range   -55°c ~ 175°c
insulation resistance 500v >1gΩ
dielectric withstanding voltage 500v ac 1 min. Δr ≤ ±0.1%r
load life 70°c on~off cycle 1000 hrs. Δr ≤ ±1%r
moisture-proof load life 40°c 95% rh on~off cycle 21 hrs. Δr ≤ ±0.2%r
resistance to soldering heat 350°c, 3.5s Δr ≤ ±0.1%r
solderability 235±5°c, 5s(solder bath method) iec68-2-20(1968)

how to order
bww-1-1w100rfdp
1 23456
1 part number
3 resistance
coderesistance
0r10.1Ω
100r100Ω
1k1000Ω
5 tcr
codetcr
c±25ppm/°c
d±50ppm/°c
k±150ppm/°c
2 power rating
4 resistance tolerance
coderesistance tolerance
b±0.1%
c±0.25%
d±0.5%
f±1%
g±2%
6 package : p (bulk)