Document No TMR-XX0S001A
Issued date 2003/09/12
Milli-Ohm Resistors
MR Series
page 1/2
TA-I TECHNOLOGY CO., LTD
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 J M A 0200 P
Item Diameter tolerance Forming type Pitch Resistance Plating
J (±5%) M A=5 0200=20m
Ω
P=Plated
K (±10%) H B=10 N=Unplated
C C=12.5 F=Lead Free
N D=15
F=20
G=25
H=7.2
J=17
M=7.5
4. Features
：
Φ
d(mm) Max
Current
Rating
Resistance
Tolerance Operating
Temp(
℃
) Temp Coefficient
PPM/
℃
0.4 2.0
0.5 2.5
0.6 3.0
0.7 4.0
0.8 4.5
0.9 5.0
1.0 5.5
1.1 6.0
1.2 7.0
1.3 7.5
1.4 8.0
1.5 9.0
1.6 9.5
1.8 11.0
2.0 12.0
J :
±
5%
K:
±
10%
-55
+155
CMW Wire : ±50ppm/℃
CN49 Wire : ±100ppm/℃
Ni-Cr Wire ±150ppm/℃
CN30 Wire : ±200ppm/℃
CN Wire ±300ppm/℃
The specifications beyond above can be designed according to customers’ practical requirement.
Document No TMR-XX0S001A
Issued date 2003/09/12
Milli-Ohm Resistors
MR Series
page 2/2
TA-I TECHNOLOGY CO., LTD
5. Electrical & Mechanical Performance
：
Item Specification Testing Method
Resistance to
soldering heat
1
、
No mechanical
damage
2
、
△
R/R
≦±1
%
Dipping into 260±
5℃
solder for 10±1 sec.
Measuring after 1 hr recovery time.
Solderability
Surface area must
be covered with
new solder 95%.
Dipping specimen with flux into 235±
5℃
solder for 2±
0.5 sec.
Thermal shock 1
、
No mechanical
damage.
2
、
△
R/R
≦
±2%
Loading with rating current for 30 min at
room temperature , the put into –55
℃
chamber within8~12 sec for 15 min.
Temperature
cycling
1
、
No mechanical
damage.
2
、
△
R/R
≦
±1%
Cycling with step1 to step4 for 5 cycles
Step Temperature Time
1 -55±
3℃
30 min
2 Room temp 10~15 min
3 155±
2℃
30 min
4 Room temp 10~15 min
Load life in
humidity
1
、
No mechanical
damage.
2
、
△
R/R
≦
±3%
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.
Load life
(Endurance)
1
、
No mechanical
damage.
2
、
△
R/R
≦
±2%
The test chamber with temperature 70±
2℃
and load with rated DC Current for 1.5hr
ON/0.5hr OFF repeatedly for 1000hr.
Testing method is according to JIS-C 5202
