TRX Ohmite Trapezium Aluminum Wirewound Fixed Resistors 
1.Aluminum crust surface with good performance in heat radiation,suitable for cooling plate
installation, can be used in the atrocious environment.
2.Small size,high power load.
3.High insulating capacity,encapsulation by non-flame inorganic Material,good performance in vibration.
4.Multi connection form will be easily to fix.
5.Widely used in Power supply, Transducer, Elevator, Arena audio and high requirement equipment Industry.
6.Resistance tolerance: ±1%,±2%,±5%,±10%.
Dimensions and Voltage Performance:
Part No. | Power | Resistance range | Dimensions(mm) | Max. working Voltage | Max. overload Voltage | Withstand Voltage | ||||||||
L1±1 | L2±1 | L3±1 | L4±10 | H±1 | W±1 | W1±0.5 | W2±0.5 | d±0.5 | ||||||
TRX600 | 600W | 0R1-278K | 313 | 337 | 355 | 300 | 59 | 61 | 41 | 6 | 4 | 1700V | 1700V | 2400V |
TRX800 | 800W | 0R1-329K | 358 | 382 | 400 | 300 | 59 | 61 | 41 | 6 | 4 | 1800V | 1800V | 2550V |
Dimensions and Voltage Performance:
Part No. | Power | Resistance range | Dimensions(mm) | Max. working Voltage | Max. overload Voltage | Withstand Voltage | ||||||
L1±2 | L2±2 | L3±2 | H±1 | W±1 | W1±0.5 | W2±0.5 | ||||||
TRXA00 | 1000W | 0R1-293K | 362 | 384 | 400 | 107 | 50 | 30 | 6.0 | 2000V | 2000V | 2850V |
TRXA20 | 1200W | 0R1-343K | 412 | 434 | 450 | 107 | 50 | 30 | 6.0 | 2100V | 2100V | 3000V |
TRXA50 | 1500W | 0R1-378K | 447 | 469 | 485 | 107 | 50 | 30 | 6.0 | 2200V | 2200V | 3100V |
TRXA80 | 1800W | 0R1-472K | 542 | 564 | 580 | 107 | 50 | 30 | 6.0 | 2300V | 2300V | 3300V |
TRXB00 | 2000W | 0R1-492K | 560 | 582 | 600 | 107 | 50 | 30 | 6.0 | 2400V | 2400V | 3500V |
Performance Test:
Test Item | Test Condition | Performance |
Temperature coefficient | Test the resistance value at normal temperature added 100℃,calculate per ℃ resistance value rate. | ±300ppm/℃ |
Short time overload | According 10 times rated power to account the voltage or max .overload voltage (get the lower)for 5 seconds. | ΔR≤±(2%R0+0.05Ω) |
Resistance to soldering heat | Immerge into the 350±10℃ tin stove for 2~3 seconds. | ΔR≤±(1%R0+0.05Ω) |
Solderability | Immerge into the 245±3℃ tin stove for 2~3 seconds. | The area of soldering is over 95% |
Temperature cycling | At -55℃ for 30 min,then at +25℃ for 10~15 min,then at +275℃ for 30 min,then at +25℃ for 10~15min, total 5 cycles. | ΔR≤±(1%R0+0.05Ω) |
Load life in humidity | Overload rated voltage or Max. working voltage(get the lower) for 1000 hours (1.5 hours on and half-hours off) at the 40±2℃ and 90~95% relative humidity. | ΔR≤±(5%R0+0.05Ω) |
Load life in heat | Overload rated voltage or Max. working voltage(get the lower)m for 1000 hours (1.5 hours on and half-hours off) at the 70±2℃. | ΔR≤±(5%R0+0.05Ω) |
Terminal strength | Pull:10N | ΔR≤±(2%R0+0.1Ω) |
Vibration | Frequency:10~55Hz,Swing:0.75mm,Test time:6Hours | ΔR≤±(2%R0+0.1Ω) |
Nonflammability | Respectively load AC voltage by5,10,16 times rated power for 5 min. | No visible flame |
Part No. Regulation:
TRX | 60B | J | 0 | AT04 | 10R00 |
Product Name | Power | Tol. | SpecialCode | Forming | Ohm |
Trapezium Aluminum Housed Wirewound Resistors | 60B=60W A00=1000W A20=1200W A50=1500W E00=2000W | F=±1% G=±2% J=±5% K=±10% |
| 600W-800W:AT04 1000W-2000W:AT05 | 0R100=0.1Ω 0R220=0.22Ω 10R00=10Ω 100R0=100Ω 10K00=10KΩ |