Aluminium Housed Chassis Mounted Wire Wound Resistors India

We are one of the leading manufacturer of Aluminium housed chassis mounted wire wound resistors from India. Our resistors exhibit high performance life and are extensively used across industry. These are RoHS complaint and comply to international quality & safety standards.

Aluminium housed Resistor are wound with NickelCopper or Nickel Chromium wire for obtaining required resistance on a ceramic core fitted with end caps. The winded assembly is then encapsulated in a anodised Heat sink using high temperature moulding compound.

These Resistors are applied where high wattage dissipation is required in a small space. The metal heat sink ensures good heat dispersal & allows a low hot-spot temperature. Major appliactions include Induction furnace, Medical equipments, Humidity Chambers etc.

DIMENSIONS & RANGE

R = Length, S = Width, T = Thickness
value & wattages lower & higher than specified available.
Non - inductive type available.

Power Rating	5 Watts to 250 Watts
Terminations	Lugs for 5 - 50W , Screws for 100 - 250W
Temp Coeff	± 50 PPM to 200 PPM
Tolerance	± 10%, Closer tolerances available.
Dielectric Voltage	1000 VAC for 5W & 10W, 1500 VAC for 25 W & 200W 2000 VAC for 250 W
Operating Temp	-55°C to 250°C
Deratings	Deratings required for reduced chassis mounted area and for high ambient temperatures. Derate to zero Power Linearly at 250°C ambient. Derating necessary for unmounted resistors at ambient temperatures of 25°C, 5W & 10W - 40%, 25W-50% 50W & above 60%.

D i m e n s i o n s i n M . M .																	Dimensions M.M. for Aluminium Heatsink			Resistance Range
Watts	A ±1.0	B ± 0.25	C Max 4.0	D ± 0.25	E ± 1.60	F ± 1.00	G ± 1.00	H ± 0.80	l ± 0.25	J ± 0.80	K ± 0.13	L Max	M ± 1.60	N ± 0.50	P ± Min	Q ± 0.13	R	S	T
5	28.6	12.5	2.00	11.3	15.3	6.80	8.50	12.5	-	16.4	2.40	8.20	3.40	1.70	1.60	1.30	100	100	2.0	0.1W-500
10	34.9	15.9	2.40	14.3	19.1	7.90	10.7	15.9	-	20.4	2.40	9.90	4.20	1.90	2.00	2.00	100	100	2.0	0.1W-1K
25	50.0	20.0	4.40	18.3	27.0	11.2	14.0	20.0	-	27.5	3.18	14.0	5.90	1.90	2.00	2.00	150	150	1.5	0.1W-5K
50	71.0	21.4	5.00	39.8	50.0	11.2	16.0	21.4	-	29.0	3.18	15.5	7.90	2.25	2.00	2.00	150	150	3.0	0.1W-10K
100	95.0	37.0	15.0	35.0	65.0	15.0	26.0	37.0	-	47.0	5.00	26.0	11.0	3.50	4.00	-	150	200	3.0	0.1W-20K
150/200	139	57.0	9.50	70.0	89.0	25.0	46.0	57.0	-	73.0	5.00	45.0	20.0	5.00	5.00	-	150	300	3.0	0.1W-35K
250/300	178	63.5	8.00	98.4	115	32.0	54.0	63.5	76.0	76.0	5.00	56.0	25.0	5.00	6.00	-	300	300	3.0	0.1W-50K

Aluminium Housed Chassis Mounted Wire Wound Resistors

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