Aluminum Encased Precision Heat Sinkable Resistor (AHL)

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Aluminum Encased Precision Power Heat Sinkable Resistor (AHL)

(AHL) Precision Power Heat Sinkable Resistors Reach unreachable points and simplify your PCB design. DeMint 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.

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

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

Features :

High stability, strong construction.
Standard winding & non-inductive winding types.
High power rating, small size and ultra precision.
Aluminum housing allows chassis mounting
and provides heatsink capability.

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
	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
Note: 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

Type

Dimensions (Unit: mm)

AHL-25
AHL-25N

14.3

18.3

AHL-50
AHL-50N

15.5

7.3

Note: All values might be changed or modified, please consult factory for details.

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

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

Type

Dimensions (Unit: mm)

AHL-150
AHL-150N

9.6

AHLA-150
AHLA-150N

11.5

3.5

Note: All values might be changed or modified, please consult factory for details.

Dimensions - LVA250 Terminals (AHL)

LVA250 Terminals Dimensions

Suitable for 14~16AWG

lmax=15A

Unit: mm

Tol.: ±0.2mm

ITEM

NEMA-TAB

Thickness

dΦ

DΦ

LVA 2-250

0.8 × 6.35

0.4

7.4

2.3

4.3

21.0

10.0

Note: 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)
Type	Wattage Rating (W)	Inductive	Non-inductive	Inductive	Non-inductive	Proper heat sink (Aluminum chassis)
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]
AHLA-150	150	0.4~50K	-	1900	-	0.125 [3.2] Alum.Plate, 294 in²[1896 cm²]
AHLA-150N	150	-	0.12~25K	-	1340	0.125 [3.2] Alum.Plate, 294 in²[1896 cm²]
Note: 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 <br>(AHL on Chassis)

Surface Temperature Versus Power Load
(AHL on Chassis)

Ambient Temperature Derating (AHL)

(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

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.

Order Codes Extended Lead Wire (AHL)

AHL

L340

14AWG

510R

Part Number

AHL

AHLA

Rated Power (W)
25	25W
50	50W
150	150W

Inductance
N	Non-Inductance
	Inductance

Wire Length(min.)

L160

L340

L500

L300

Wire Type