Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 1 / 10
Cal-Chip Electronics, INC.
Ceramic Substrate
Metal film milli-ohm (10~300mΩ) chip resistors (CRM) are made in chip size
from 0201 to 2512 for Calchip. These resistors apply as current detecting resistor for
applications such as power supplies, computers, HDDs, Cellular telephones, etc.
1. Features
Low Resistance and High Accuracy Resistor for Current Detection
Homogeneous Ni Alloy Films
High Purity Alumina Substrate for High Power Dissipation
Pb-free to Meet RoHS Requirements
2. Applications
Power Management Applications
Switching Power Supply
DC-DC Converter, Battery Pack, Charger, Adaptor
Portable Instruments (PDA and Cell Phone)
Voltage Regulation Module (VRM)
Computer
3. Construction:
Over Coat
Ni Plating
Sn Plating
Resistive Element
Conductor (Lead-free)
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 2 / 10
Cal-Chip Electronics, INC.
4. Type Designation:
5. Ratings, Characteristics, and Dimensions:
Resistance Range (mΩ)Dimension (mm)
Chip
Size
Power
Rating
TCR
(ppm/oC) F:±1% G:±2% J:±5%
Operating
Temp. Range L W t c d
± 700 − − 20~33
± 500 36~100
0201 0.1W
± 300 101~300
0.6±0.03 0.3±0.03 0.27±0.05 0.12±0.05 0.15±0.05
± 500 − − 20~30
± 300 33∼43
0402 0.125W
± 200 47~300
1.0±0.1 0.55±0.05 0.38±0.05 0.2±0.1 0.25±0.10
± 500 10~30
± 350 33~43
0603 0.2W
± 150 47~300
1.6±0.1 0.85±0.10 0.48±0.10 0.3±0.2 0.30±0.20
± 500 10~30
± 350 33~43
0805 0.25W
± 150 47~300
2.0±0.1 1.30±0.10 0.57±0.10 0.35±0.2 0.40±0.20
± 400 10~30
± 250 33~43
47~91
3.1±0.2 1.60±0.10 0.62±0.10 1.0±0.3 0.40±0.20
1206 0.5W
± 150
100~300
-55
oC~+125oC
3.1±0.2 1.60±0.10 0.62±0.10 0.4±0.3 0.40±0.20
CRM
Metal Film Milli-Ohm
Chip Resistor
12
Size/Power Rating
02 = 0201
04 = 0402
06 = 0603
10 = 0805
12 = 1206
20 = 2010
25 = 2512
CT
Packaging
RoHS
Ω
Resistance
R010 : 10m
F R010
Tolerance
F : ±1%
G : ±2%
J : ±5%
CT : Tape & Reel
CT-LF : Tape &
Reel, Lead-free
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 3 / 10
Cal-Chip Electronics, INC.
± 400 10~30
± 250 33~43
47~91
5.0±0.2 2.60±0.20 0.62±0.10 1.7±0.3 0.5±0.25
2010 0.75W
± 150
100~300 5.0±0.2 2.60±0.20 0.62±0.10 0.6±0.3 0.5±0.25
± 400 10~30
± 250 33~43
47~91
6.3±0.2 3.20±0.20 0.62±0.10 1.9±0.3 0.5±0.25
2512 1W
± 150
100~300
6.3±0.2 3.20±0.20 0.62±0.10 0.6±0.3 0.5±0.25
Derating Curve :
For resistors operated at ambient temperature over 70℃, power rating shall be derated in
accordance with figure 1.
P max.
100
50
0
-55 50
70 100 125
Ambient Temperature (oC)
Figure 1
Power Ratio (%)
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 4 / 10
Cal-Chip Electronics, INC.
6. Marking:
From 0805 to 2512:
Resistance value is expressed by 4 digits, the first “R” means decimal point and the other
digits represent for the normal resistance in Ω.
eg., 15mΩ= R015, 100mΩ= R100,
For 0603:
The marking of CRM06 can not represent by 4 digits but by 3 digits.
(a) Resistance value higher than or equals to 100mΩ is represented by E96 series. However,
for resistance value not in the list of E96, 3 digitals with underline in E24 series is used.
eg., 100mΩ= 01Z, 200mΩ= 08Z, 120mΩ= 012
(b) Resistance value lower than 100mΩ is represented by 2 digits plus a symbol L.
eg., 10mΩ= 10L, 20mΩ= 20L, 47mΩ= 47L
For 0402 and 0201: No Marking.
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 5 / 10
Cal-Chip Electronics, INC.
7. Reliability Tests: (As specified in JIS C 5202)
Test Items Condition of Test Test Limits Reference
standard
TCR
(Temperature Coefficient of Resistance) -55 ~ +125 oC Refer to paragraph 5 JIS-C5202 - 5.2
Short Time Overload 2.5 X rated voltage, 5s 0201:± (2%+0.001 Ω )
others: ± (1%+0.001 Ω ) JIS-C5202 - 5.5
Load Life Apply rated power at 70oC for 1000
hours, 1.5hours "ON" and 0.5hour "OFF"
0201:± (3%+0.001 Ω )
others: ± (2%+0.001 Ω ) JIS-C5202 - 7.10
Moisture Resistance Storage at 40±2oC and 90~95% RH
for 1000h
0201:± (3%+0.001 Ω )
others: ± (2%+0.001 Ω ) JIS-C5202 - 7.9
Rapid Change of Temperature -55 oC (30 min. ) / +125 oC (30 min. )
100 cycles ± (1%+0.001 Ω ) JIS-C5202 - 7.4
Resistance to Soldering Heat 270±5 oC solder , 10±1 sec dwell 0201:± (2%+0.001 Ω )
others: ± (1%+0.001 Ω ) JIS-C5202 - 6.10
Solderability 245±5 oC solder, 2±0.5 sec dwell.
Solder : Sn96.5 / Ag3.0 / Cu0.5
At least 95% of surface
area of electrode shall be
covered with new solder. JIS-C5202 - 6.11
Robustness of Termination
(Bending Strength) 3mm deflection 0201:± (2%+0.001 Ω )
others: ± (1%+0.001 Ω ) JIS-C5202 - 6.1
High Temperature Exposure 125 ±5 oC for 1000 hrs ± (1%+0.001 Ω ) JIS-C5202 - 7.2
8. Taping & Reel
8.1 Taping Dimensions: 4 mm pitch paper
CRM06
CRM10
CRM12
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 6 / 10
Cal-Chip Electronics, INC.
8.2 Taping Dimensions: 2 mm pitch paper
UNIT:mm
8.3 Taping Dimensions: 4 mm Emboss
UNIT:mm
CRM02
CRM04
CRM20
CRM25
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 7 / 10
Cal-Chip Electronics, INC.
8.4 Reel Specifications
(Unit：mm)
CRM
CRM
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 8 / 10
Cal-Chip Electronics, INC.
8.5 Peel-off force :
Peel-off force of paper and blister tape is in accordance with “JIS ”, that is 0.1 to 0.7 N at a
peel-off speed of 300 mm/minute.
Pull
Top Cover Tape 300 mm/min
10 ~ 15° Standard: 0.1 ~ 0.7 N
Carrier Tape
9. Label
9.1 Manufacture Label :
Date Code Resistance Tolerance Type
Lot No:
Manufacture Label
9.2 Customer Label ( By customer request ):
Lead-Free Products
Product Spec.
Customer No:
Date
Year Month
QTY: 10000 PCS
R020 J T
30860166K- 1010 0201
Packa
g
in
g
LEAD FREE
0201 5%(T) 20mΩ
105A702723 CRM02JR020CT
08.10.10
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 9 / 10
Cal-Chip Electronics, INC.
10. Recommended land patterns
11. Recommend IR – Reflow profile : ( Lead-Free solder : Sn96.5 / Ag3.0 / Cu0.5 )
Peak : 250
0
5
−
+℃ , 5 sec
Pre-heat Zone : 150 to 180℃, 90±30 sec
Soldering Zone : 230℃ or higher , 30±10 sec
CRM
Document No. CRM
Issued Date 2009/01/09
Metal Film Milli-Ohm Chip
Resistor (CRM)
Page 10 / 10
Cal-Chip Electronics, INC.
12. Storage Conditions:
Temperature: 5℃~35℃,Humidity:40%~75%
13. Shelf Life:
2 years from manufacturing date
14. ECN
Engineering Change Notice: The customer will be informed with ECN if there is significant modification
on the characteristics and materials described in Approval Sheet.
〜
〜