POWER RESISTORS

Aluminum Housed Extended Lead Wire Power Resistors

AHL

AHL extended lead wire power series
Providing design engineers a flexible connection in distance between devices.


Tokenchina has further expanded its aluminum chassis mount wirewound AH product capabilities to a flexible connection between devices and the AHL Power Series with prolonged lead wires.


Supporting a wide range of applications, the AHL power series is ideally suited for applications where heat dissipation, add high power are required, easy to utilize and install.

Aluminum Housed Wirewound Power Resistors - AHL Series

Non-Inductive:

  • Ayrton Perry type non-inductive winding is available. When required add "N" to the part number.

Resistance Tolerance:

  • K(±10%), J(±5%)

The power AHL is lead-free and RoHS compliant. Please contact us for details with your specific needs.


Materials - Aluminum Housed AHL

① 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
② 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
③ Terminals LVA2-250, Cu (Nickel-plate), W7.5 × L10mm
  • All values might be changed or modified, please consult factory for details.

AHL-25, AHL-50 - Dimensions

Wirewound Aluminum Resistor Housed
Type Dimensions (Unit: mm) Aluminum Housed AHL
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
  • All values might be changed or modified, please consult factory for details.

AHL-150, AHL-150A - Aluminum Housed 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
  • 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 dΦ DΦ L H
LVA 2-250 0.8 × 6.35 0.4 7.4 2.3 4.3 21.0 10.0
  • All values might be changed or modified, please consult factory for details.

Electrical Specification - Aluminum Housed AHL

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]
  • 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.

Characteristics - Aluminum Housed AHL

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 - Aluminum Housed AHL

AH 50W L340 14AWG 0R2 K
Product type
AHL-25
AHL-25N
AHL-50
AHL-50N
AHL-150
AHL-150N
AHL-150A
AHL-150AN
Rated Power
25W
25W
50W
50W
150W
150W
150W
150W
Wire Length (min.)
L160
L160
L340
L340
L500
L500
L300
L300
Wire Type
14AWG
Resistance Value (Ω)
R47 0.47 Ω
4R7 4.7 Ω
470R 470 Ω
4K7 4.7K Ω
47K 47K Ω
47K3 47.3K Ω
Resistance Tolerance (%)
K ±10%
J ±5%

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AHL Series - AH Extended Lead Wire Power Resistors