Document No CRLM-XXOS088A
Issued date 2008/06/20
Lead-Free Current Sensing Resistors
CRLM Series
page 2/6
CAL-CHIP ELECTRONICS, INC.
4. Features:
Type CRLM
Power Rating 1&2 W (1W:R=1~40 mΩ)
(2W:R≦10mΩ)
Resistance Value 1 ~40mΩ
Operation Temperature Range -55℃~+170℃
275ppm/℃R≦2mΩ
100ppm/℃2mΩ<R≦10mΩ
Temperature Coefficient of Resistance 75ppm/℃ R>10mΩ
Tolerance ±1%,±2%,±5%
Insulation Resistance Over 100MΩ
Maximum Working Voltage(V) (P*R)1/2
5. Reliability Tests :
Test Items Condition of Test Test Limits
Temperature Coefficient of
Resistance +25℃ ~ +125℃ Refer 4.0
Load Life 1000hours at rated power, 70℃, 1.5hours
“ON”, 0.5hour “OFF” < ±1%
Short Time Overload 5 X rated power for 5s < ±0.5%
Moisture no Load 85℃, 85%RH, 1000hrs < ±0.5%
Temperature cycle -40℃ & +125℃, 1000cycle, 15min per
extreme condition < ±0.5%
Resistance to Soldering Heat 260±5℃ for20±1 sec < ±0.5%
Solderability 245±5℃, 2±0.5sec
t least 95% of surface area
of electrode shall be
covered with new solder
High Temperature Exposure 170℃, 1000hrs < ±0.5%
Low Temperature Storage -55℃, 1000hrs <±0.5%
Substrate Bending Bending width 2mm, Epoxy thickness
1.6mm, Fulcrums distance 90mm < ±0.5%
Insulation Resistance 100V DC for 1 minute >100 MΩ