Aluminium Housed Chassis Mounted Wire Wound Resistors
Description
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.
Construction:
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.
| 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%. |
- Low Cost, Light weight & Compact.
- Non-inductive Type available.
- Custom Values available.
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:
| DimensionsinM . 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 | 10.70 | 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 | 5.0 | 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 | 5.0 | 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 | 5.0 | 45.0 | 20.0 | 5.0 | 5.00 | - | 150 | 300 | 3.0 | 0.1W-35k |
| 250/300 | 178 | 63.5 | 8.0 | 98.4 | 115 | 32.0 | 54.0 | 63.5 | 76.0 | 76.0 | 5.0 | 56.0 | 25.0 | 5.0 | 6.00 | - | 300 | 300 | 3.0 | 0.1W-50k |