tokenonline global worldwide service
extended lead wire ah power resistors - ahl series

extended lead wire ahl power resistors

aluminum housed wirewound power resistors - ahl series

features

  • high stability, strong construction.
  • high power rating , small size and ultra precision.
  • offer both standard winding & non-inductive winding.
  • extended lead wire design is easy to install and moreflexibility for designer.
general specification:
  • wattage range: 6 styles to choose ranging from 5 to 250 watts.
  • resistance tolerance: 10%, 5%.
  • power range: 25w~150w.
ahl power extended lead wire series - materials
encapsulant silicone
end caps stainless steel
core ceramic steatite or aluminum
housing aluminum with hard anodic coating
element copper-nickel alloy, nickel-chrome alloy or manganese copper
wire
(14awg)
ahl-25, ahl-25n ahl-50, ahl-50n ahl-150, ahl-150n ahl-150a, ahl-150an
length=160mm length=340mm length=500mm length=300mm
terminals lva2-250, cu (nickel-plate), w7.5 × l10mm
notice: all values might be changed or modified, please consult factory for details.
ahl-25, ahl-50 power extended lead wire series - dimensions
wirewound aluminum resistor housed
type dimensions (unit: mm)
e f g h m n p q
ahl-25
ahl-25n
13 7 14.3 2 18.3 27 20 27
ahl-50
ahl-50n
15.5 7.3 16 2 40 50 22 29
notice: all values might be changed or modified, please consult factory for details.
ahl-150, ahl-150a power extended lead wire series - dimensions
type dimensions (unit: mm)
e f g h n p q
ahl-150
ahl-150n
45 9.6 46 5 92 57 72
ahl-150a
ahl-150an
26 11.5 27 3.5 97 37 48
notice: all values might be changed or modified, please consult factory for details.
lva250 terminals dimensions (unit: mm)
suitable for 14~16awg lmax=15a unit: mm tol.: ±0.2mm
item nema-tab thickness b l h
lva 2-250 0.8 × 6.35 0.4 7.4 2.3 4.3 21.0 10.0
notice: all values might be changed or modified, please consult factory for details.
ahl power extended lead wire series - electrical specification
type wattage
rating
(w)
resistance range (Ω) max. working (v) proper heat sink
(aluminum chassis)
inductive non-inductive inductive non-inductive
ahl-25 25 0.012~15k - 500 - 0.040 [1.0] alum.plate, 167 in2[1077 cm2]
ahl-25n 25 - 0.02~5.5k - 300 0.040 [1.0] alum.plate, 167 in2[1077 cm2]
ahl-50 50 0.01~40k - 1300 - 0.059 [1.5] alum.plate, 291 in2[1877 cm2]
ahl-50n 50 - 0.02~12k - 600 0.059 [1.5] alum.plate, 291 in2[1877 cm2]
ahl-150 150 0.4~50k - 1900 - 0.125 [3.2] alum.plate, 294 in2[1896 cm2]
ahl-150n 150 - 0.12~25k - 1340 0.125 [3.2] alum.plate, 294 in2[1896 cm2]
ahl-150a 150 0.4~50k - 1900 - 0.125 [3.2] alum.plate, 294 in2[1896 cm2]
ahl-150an 150 - 0.12~25k - 1340 0.125 [3.2] alum.plate, 294 in2[1896 cm2]
notice: all values might be changed or modified, please consult factory for details.
surface temperature versus power load (on chassis) & derating
surface temperature versus power load (on chassis) ahl power derating
derating is required to reduce chassis outing area and for high ambient temperatures.
curves: a=5 & 10 watt units, unmounted.b=25 watt units, unmounted.c=50, 100 & 250 watt units, unmounted.

heat sink derating
heat sink derating
reduced heat sink derating:
derating is also required when recommended heat sink area is reduced.
a = ahl-5 and ahl-10 size resistor.
b = ahl-25 size resistor
c = ahl-50, ahl-100 and ahl-250 size resistor

ahl power extended lead wire series - characteristics
parameters test conditions specifications
vibration 10c/s~50c/s~10c/s (1min) - 2hours
each of paralleled and right angle
Δ r±(1%+0.05Ω) max.
load life load rating (chassis mounted)
(1.5hour on 0.5hour off) repeat 1000hours
Δ r±(5%+0.1Ω) max.
heat resistance 260±5°c, 10±1sec. Δ r±(1%+0.05Ω) max.
terminal strength (1)pull test (30 sec min)
ah-51kg, ah-10 2.3kg, ah-25, ah-50 4.5kg
(2)torque test (5~15sec)
ah-100 27kg-cm, ah-250 36kg-cm
Δ r±(0.2%+0.05Ω) max.
dielectric strength ah-5, ah-10, ah-25 1000v
ah-50 1500v
ah-100, ah-250 2000v
Δ r±(0.5%+0.05Ω) max.
moisture load life temp 40°c moisture 95% 1/10 × wattage rating
(1.5hr on-0.5hr off) - repeat 200hr
Δ r±(1%+0.1Ω) max.
moistrue resistance temp 40°c moisture 95% dc 100v 500hr Δ r±(1%+0.1Ω) max.
insulation resistance under the same test condition of dielectric strength,
load dc500v and measure the insulation r.
10mΩ min.
short time over load 5 × wattage rating-5sec. Δ r±(2%+0.1Ω) max.

how to order
ahl-5050wl34014awgr47k
123456
1 part number
normal typenon-inductive type
ahl-25ahl-25n
ahl-50ahl-50n
ahl-150ahl-150n
ahl-150aahl-150an
3 wire length (min.)
part numberwire length (min.)
ahl-25
ahl-25n
l160
ahl-50
ahl-50n
l340
ahl-150
ahl-150n
l500
ahl-150a
ahl-150an
l300
n: non-inductive type.
6 resistance tolerance (%)
coderesistance tolerance (%)
k±10%
j±5%
2 rated wattage
part numberrated wattage
ahl-25
ahl-25n
25w
ahl-50
ahl-50n
50w
ahl-150
ahl-150n
150w
ahl-150a
ahl-150an
150w
n: non-inductive type.
4 wire type : 14awg
5 max.resistance value (Ω)
codemax.resistance value (Ω)
r470.47Ω
4r74.7Ω
470r470Ω
4k74.7kΩ
47k47kΩ
47k347.3kΩ

page: 1 / 2