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Aluminum Encased Precision Power Heat Sinkable Resistor (AHL)

Extending Lead Wire (AHL) Introduction

Token Power Heat Sinkable (AHL) Device Extends Lead Wire Reaching Unreachable PCB for Easy Installation.

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  • Aluminum Housed Wirewound (AHL)

(AHL) Precision Power Heat Sinkable Resistors Reach unreachable points and simplify your PCB design. Token Electronics extended lead wire aluminum housed wirewound Power resistor (AHL) provides design engineers a flexible connection in distance between connections.

(AHL) is a high-performance axial-terminal type resistor with flexible connections. These molded-construction aluminum-chassis resistors are available in higher power ratings than standard axial-terminal resistors and are better suited to withstanding vibration, shock and harsh environmental conditions.

(AHL) resistors are aluminum encased to maintain high stability during operation and to permit secure mounting to chassis surfaces. The metal housing also provides heat sinkable capabilities, allowing the units to exceed the power ratings.

The (AHL) Series is RoHS compliant and lead free. For non-standard technical requirements and custom special applications, please contact us for details with your specific needs.

Click to link standard lead wire type, Aluminum Chassis Precision Power Resistors (AH).

Downloads complete PDF version Aluminum Encased Precision Power Heat Sinkable Resistor (AHL).

Features :
  • Core: Ceramic steatite or alumina.
  • High stability, strong construction.
  • Housing: Aluminum with hard anodic coating.
  • Standard winding & non-inductive winding types.
  • Element: Copper-nickel alloy, nickel-chrome alloy or manganese copper.
Non-Inductive :
  • Standard winding & non-inductive winding avaiable.
  • High power rating, strong construction, small size, and ultra precision.
  • Aluminum housing allows chassis mounting and provides heat sink capability
  • Ayrton Perry type non-inductive winding is available. When required add "N" to the part number.
General Specification :
  • Resistance Tolerance: ±10%, ±5%.
  • Operating Temperature Range: -55°C to +275°C.
  • Wattage Range: 4 styles to choose ranging from 25 to 150 Watts.
  • Dielectric Strength: AHL-25 1000V, AHL-50 1500V, AHL-150 2500V.

Materials Extended Lead Wire (AHL)

① Encapsulant Silicone Materials Extended Lead Wire (AHL)
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 AHLA-150, AHLA-150N
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.

Dimensions Extended Lead Wire (AHL-25, AHL-50)

Extended Lead Wire (AHL-25, AHL-50) Dimensions
Extended Lead Wire (AHL-25, AHL-50) Dimensions
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
  • All values might be changed or modified, please consult factory for details.

Dimensions Extended Lead Wire (AHL-150, AHLA-150)

Extended Lead Wire (AHL-150, AHLA-150) Dimensions
Extended Lead Wire (AHL-150, AHLA-150) Dimensions
Type Dimensions (Unit: mm)
E F G H N P Q
AHL-150
AHL-150N		 45 9.6 46 5 92 57 72
AHLA-150
AHLA-150N		 26 11.5 27 3.5 97 37 48
  • All values might be changed or modified, please consult factory for details.

Dimensions - LVA250 Terminals (AHL)

LVA250 Terminals Dimensions
LVA250 Terminals Dimensions
Suitable for 14~16AWG lmax=15A Unit: mm Tol.: ±0.2mm
ITEM NEMA-TAB Thickness B (Ref.) 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 Extended Lead Wire (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 - 1077 cm2 × 1.0 mm thick or equiv
AHL-25N 25 - 0.02~5.5K - 300 1077 cm2 × 1.0 mm thick or equiv
AHL-50 50 0.01~40K - 1300 - 1877 cm2 × 1.5 mm thick or equiv
AHL-50N 50 - 0.02~12K - 600 1877 cm2 × 1.5 mm thick or equiv
AHL-150 150 0.4~50K - 1900 - 1896 cm2 × 3.2 mm thick or equiv
AHL-150N 150 - 0.12~25K - 1340 1896 cm2 × 3.2 mm thick or equiv
AHLA-150 150 0.4~50K - 1900 - 1896 cm2 × 3.2 mm thick or equiv
AHLA-150N 150 - 0.12~25K - 1340 1896 cm2 × 3.2 mm thick or equiv
  • All values might be changed or modified, please consult factory for details.

Surface Temperature Versus Power Load (Mounted on heat sink chassis) Extended Lead Wire (AHL)

Surface Temperature Versus Power Load (AHL on Chassis)
Surface Temperature Versus Power Load
(AHL on Chassis)

Ambient Temperature Derating (AHL)

(AHL) Ambient Temperature Derating
(AHL) Ambient Temperature Derating
Derating is required for ambient temperatures above 25°C, see the graph. Curve Aluminum Chassis applies to all types when mounted to specified heat sink. Curves A, B apply to operation of unmounted resistors.
  • Curves A:< AHL 25 watt units, unmounted.
  • Curves B: AHL 50, 100 and 250 watt units, unmounted.

Reduced Heat Sink Derating (AHL)

(AHL) Reduced Heat Sink Derating
(AHL) Reduced Heat Sink Derating
Derating is also required when recommended heat sink area is reduced.
  • Curves A: AHL-25 size resistor.
  • Curves B: AHL-50, AHL-100 and AHL-250 size resistor.

Test Conditions (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 Pull Test (30 sec Min) 4.5kg Δ R±(0.2%+0.05Ω) Max.
Dielectric Strength AHL-25 1000V AHL-50 1500V
AHL-100, AHL-150 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.

Extended Lead Wire Heat Sinkable Resistor (AHL) - Order Codes

AHL-50 50 N L340 14AWG 510R K
Part Number
AHL
AHLA
Rated Power (W)
25 25W
50 50W
150 150W
Inductive (N)
Inductive
N None Inductive
Wire Length (min.)
L160
L340
L500
L300
Wire Type
14AWG
Resistance Value (Ω)
R51 0.51Ω
5R1 5.1Ω
51R 51Ω
510R 510Ω
5K1 5.1KΩ
47K 47KΩ
47K3 47.3KΩ
Resistance Tolerance (%)
A5 ±0.05%
J ±5%
K ±10%