Milli-Ohm Resistors MR Series Document No TMR-XX0S001A Issue d date 2003/09/12 page 1/2 1. Dimension 2. Scope This specification applied to the products of milli-ohm resistors for MR series manufactured by TA-ITECHNOLOGY CO.,LTD.. 3. Explanation of part number MR 08 Item Diameter J M tolerance Forming type J (5%) K (10%) M H C N A 0200 Pitch P Resistance Plating A=5 0200=20m P=Plated B=10 N=Unplated C=12.5 F=Lead Free D=15 F=20 G=25 H=7.2 J=17 M=7.5 4. Features d(mm) 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.8 2.0 Max Current Rating 2.0 2.5 3.0 4.0 4.5 5.0 5.5 6.0 7.0 7.5 8.0 9.0 9.5 11.0 12.0 Resistance Tolerance Operating Temp() -55 Temp Coefficient PPM/ C M W W i r e : 5 0 p p m / J : 5% C N 4 9 W i r e : 1 0 0 p p m / K: 10% N i-Cr Wire 1 5 0 p p m / C N 3 0 W i r e : 2 0 0 p p m / +155 CN Wire 3 0 0 p p m / The specifications beyond above can be designed according to customers' practical requirement. TA-I TECHNOLOGY CO., LTD Milli-Ohm Resistors MR Series Document No TMR-XX0S001A Issue d date 2003/09/12 page 2/2 5. Electrical & Mechanical Performance Item Resistance to soldering heat Solderability Thermal shock Specification 1 No mechanical damage 2 R/R1 % Surface area must be covered with new solder 95%. 1 No mechanical damage. 2 R/R2% Testing Method Dipping into 260 5 solder for 10 1 sec. Measuring after 1 hr recovery time. Dipping specimen with flux into 235 5 solder for 2 0.5 sec. Loading with rating current for 30 min at room temperature , the put into -55 chamber within8~12 sec for 15 min. Cycling with step1 to step4 for 5 cycles Temperature cycling 1 No mechanical damage. 2 R/R1% Load life in humidity 1 No mechanical damage. 2 R/R3% Load life (Endurance) Step 1 2 3 4 Temperature -55 3 Room temp 155 2 Room temp Time 30 min 10~15 min 30 min 10~15 min The test chamber with temperature 40 2 and R.H.=90~95%, load with rater DC Current for 1.5hr ON/0.5hr OFF repeatedly for 1000hr. 1 No mechanical The test chamber with temperature 70 2 damage. and load with rated DC Current for 1.5hr 2 R/R2% ON/0.5hr OFF repeatedly for 1000hr. Testing method is according to JIS-C 5202 TA-I TECHNOLOGY CO., LTD