RMK Series Precision Chip Film ResistorsDetailed product description：

RMK series precision chip film resistor

Features: Good resistance temperature characteristics, wide resistance range, high accuracy, small size; Good stability, high reliability, high mechanical strength, superior high-frequency characteristics
Application: Suitable for flow soldering and reflow soldering, with low assembly cost and used in automatic mounting equipment. Widely used in communication equipment, computers, various high-frequency devices, and integrated circuits
Operating environment: rated power temperature (+70 ℃); Temperature range for use (-55 ℃~+125 ℃)
Structural form: SMC surface mount
Applicable standard: BJB1432A-99

Dimensions of RMK series precision chip film resistors

Model	Rated power (W)	Dimensions (mm)
		L	W	H	L
0603	1/16W	1.6±0.2	0.8±0.2	0.4±0.1	0.3±0.2
0805	1/10W	2.0±0.2	1.25±0.2	0.5±0.1	0.4±0.2
one thousand two hundred and six	1/8W	3.2±0.2	1.6±0.2	0.5±0.1	0.45±0.2

Main technical indicators

Model	Rated power (W)	Temperature coefficient (× 10)-6/℃)	Allowable deviation of resistance value (%) Range of resistance value (Ω)			Maximum operating voltage (V)	Maximum Overload Voltage (V)
			F(±1%)	D(±0.5%)	B(±0.1)
0603	1/16W	±100	10Ω～2.2MΩ			fifty	one hundred
		±50	10Ω～510KΩ	51Ω～499KΩ	100Ω～100KΩ
		±25	100Ω～510KΩ	100Ω～499KΩ	100Ω～100KΩ
0805	1/10W	±100	100Ω～3.3MΩ			one hundred	two hundred
		±50	10Ω～2.2MΩ	51Ω～2.2MΩ	100Ω～1MΩ
		±25	100Ω～510KΩ	100Ω～499KΩ	100Ω～499KΩ
one thousand two hundred and six	1/8W	±100	10Ω～5.1MΩ			two hundred	four hundred
		±50	10Ω～3.3MΩ	51Ω～3.3MΩ	100Ω～1MΩ
		±25	100Ω～1MΩ	100Ω～1MΩ	100Ω～1MΩ

Main inspection items, test methods, and performance requirements

Inspection Item	Performance Requirements	Test Method
Temperature coefficient of resistance	≤±100(×10-6/℃)	-55℃/+20℃  20℃/+125℃
Terminal strength	R≤±(0.1%R+0.05Ω)	500g for 30 seconds
Installation firmness	Firmly pasted without mechanical damage	0.1N lateral thrust, 30s
solderability	95% of the lead out end is covered with solder	235 ± 5 ℃ immersion welding resistor ends for 3s ± 0.5s
Solder heat resistance	ΔR≤±(0.1%R+0.05Ω)	270 ± 5 ℃ 10 ± 1s
Overload	ΔR≤±(0.1%R+0.05Ω)	Measure the resistance value after 30 minutes of 2.5VR 5s (400V Max)
Rapid temperature changes	ΔR≤±(0.1%R+0.05Ω)	-55 ℃/+125 ℃ 5 cycles
vibration	ΔR≤±(2%R+0.05Ω)	10～500Hz　98m/stwo
lifespan	ΔR≤±(0.5%R+0.05Ω)	+70±2℃ VR 1000h
Steady-state hot and humid	ΔR≤±(0.5%R+0.05Ω)	+40 ± 2 ℃, relative humidity 90-95%, 240h