Origin	China
Model Number	GRM
Brand Name	Pak Heng

Chip Resistors(GRM)

1,It can reduce the area and weight of the PCB for its small size and light.

2,Operating ambient temperature: -55 degree centigrade to +125 degrees centigrade.

3,High credibility:the thick metal film resistor body is added with glass protective layer and three layers of electrode composition. 

4,The appearance dimension is symmetrical and accurate for easy assembly.

Size:   0201 0402 0603 0805 1206 1210 2010 2512

        (0603 1005 1608 2012 3216 3225 5025 6432)

Tolerance: ±1%,±5%

Range:0R-22M

Performance Test:

Test Item	Test Condition	Performance
Temperature coefficient	Test the resistance value at normal temperature and normal temperature added 100 degrees centigrade, calculate per degree centigrade value change rate	300ppm
Short time overload	2.5 x rated voltage or Max. overload voltage(get the lower) for 5 second	R ≤ ± (2%R0+0.05Ω)
Resistance to soldering heat	Immerge into the 350±10 degrees centigrade tin stove for 2-3 seconds	R ≤ ± (1%R0+0.05Ω)
Solder ability	Immerge into the 245±3 degrees centigrade tin stove for 2-3 seconds	The soldering area is over 95%
Temperature cycling	At -55 degrees centigrade for 30 min, then at +25 degrees centigrade for 10-15min, then at +125 degrees centigrade for 30 min, then at +25 degrees centigrade for 10-15 min., total 5cycles.	R ≤ ± (0.5%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-hour off) at the 40±2 degrees centigrade and 90-95% relative humidity.	R ≤ ± (5%R0+0.05Ω)
Load life in heat	Overload rated voltage or Max. working voltage (get the lower) for 1000 hours(1.5 hours on and half-hour off ) at the 70±2 degrees centigrade.	R ≤ ± (5%R0+0.05Ω)
Nonflammability	Respectively load AC voltage by 5, 10, 16 times rated power for 5 minutes	No visible flame