RXM71-3W Wirewound Molded Fixed Resistor

RXM71-3W Wirewound molded fixed resistor

Product Introduction:

• Product features: Small size, high power-to-weight ratio, lightweight, low cost. Plastic-encased molded, high resistance accuracy, high insulation strength, excellent moisture resistance.
• Applications: Can be widely used as a replacement for ceramic packaged components, competitive in scenarios requiring high insulation performance for current sensors and low-power products.
• Product standard: Q/RW503-2013 RXM71 Wirewound Molded Fixed Resistor detailed specifications.

Size:

specifications and models	rated power(W)	resistance range(Q)	Size(mm)
			L±0.5	B±0.5	d±0.05
RXM71-3W	3	0.15 ～ 1k	15	5.2	0.8

Key Test Items:

Test items:	Test conditions:	Performance requirements:	Test standards:
Insulation resistance	Voltage: 500Vdc, 1 minute, V-shaped block method	Insulation resistance: ≥10GΩ, no breakdown, no arcing	GB/T 5729-2003 Clause 4.6
Voltage withstand	Voltage: 1W-5W; 500Vac, 10W; 1000Vac, 1 minute, V-shaped block method	ΔR ≤ ±(1%R + 0.05Ω)	GB/T 5729-2003 Clause 4.7
Resistance change with temperature	Lower category temperature: (-55±3)°C Upper category temperature: (+155±2)°C	For resistances >10Ω: ±50ppm/°C	GB/T 5729-2003 Clause 4.8
Overload	10 times rated power load for 5 seconds	For resistances between 1Ω and 10Ω: ±100ppm/°C	GB/T 5732-1985 Clause 2.3.4
Temperature rise	Ambient temperature: (15-30)°C, rated power	No specific requirement for resistances ≤ 1Ω	GB/T 5729-2003 Clause 4.14
Terminal strength	Tensile strength: 20N, 10 seconds	ΔR ≤ ±(1%R + 0.05Ω) at ≤205°C	GB/T 2423.29-1999
Solderability	Solder bath temperature: (235±5)°C, immersion time: (2±0.5) seconds	Uniformly tinned, free-flowing	GB/T 2423.28-2005
Rapid temperature change	Temperature range: (-55 to +155)°C, 5 cycles	ΔR ≤ ±(1%R + 0.05Ω)	GB/T 2423.22-2012
Shock resistance	Acceleration: 490m/s², time: 11ms, half sine wave	ΔR ≤ ±(1%R + 0.05Ω)	GB/T 2423.05-1995
Vibration resistance	Frequency: (10-500)Hz, acceleration: 0.75mm or 98m/s², 6 hours	ΔR ≤ ±(1%R + 0.05Ω)	GB/T 2423.10-2008
Room temperature durability	Ambient temperature: (15-30)°C, rated power, 1000 hours	ΔR ≤ ±(5%R + 0.1Ω)	GB/T 5729-2003 Clause 4.25

Power dissipation curve:

Ordering Example:

Model Number :RXM71-3W

Rated Power:3W

Nominal Resistance:10Ω

Resistance Tolerance:±5%

Quantity:1000 pieces

Product Tags:

3W Precision Wirewound Resistor

      

3 Watts Precision Wirewound Resistor

      

3W precision wire wound

      

RXM71-3W Wirewound Molded Fixed Resistor Images