CMF
Chip NTC Thermistors
8415 Mountain Sights Avenue • Montreal (Quebec), H4P 2B8, Canada
Tel:
(514) 739-3274 • 1-800-561-7207 •
Fax:
(514) 739-2902 •
E-mail:
sales@cantherm.com
Website:
www.cantherm.com
| Division of Microtherm
2014/AUGUST CMF
Part Numbering
CMF
Chip NTC
thermistor
B
Size Code
Code
C
Inches
1206
0805
0603
0402
3950
B-value
(25/85ºC)
103
Resistance
at 25ºC (Ω)
103
104
10x103
10x104
F
G
H
J
K
J
Tolerance
±1%
±2%
±3%
±4%
±10%
N
Termination
P
N
Pd
Nickel
Barrier
B
T
T
Packaging
Bulk
Tape &
Reel
Application
CMF
• Temperature compensation of IC, LCD
• Transistor
• Crystal oscillator of mobile communications equipments
• Temperature sensor for rechargeable batteries
• Temperature sensor for CPU
• Temperature compensation of several kinds of circuits
B
A
X
0402 Series
Part No.
CMFX3950103_
CMFX4050473_
CMFX4050104_
Resistance at
25ºC (KΩ)
10
47
100
Characteristics
B-Constant
(25/85ºC (K)
3950
4050
4050
0805 Series
Part No.
CMFB3435472_
CMFB3435103_
CMFB3550103_
CMFB3900223_
CMFB4000473_
CMFB4000104_
CMFB3970103_
CMFB3200202_
CMFB3650153_
CMFB4050333_
Resistance at
25ºC (KΩ)
4.7
10
10
22
47
100
10
2
15
33
B-Constant
(25/85ºC (K)
3435
3435
3550
3900
4000
4000
3970
3200
3650
4050
• Miniature size
• No lead
• Ideal for high density SMT installation
• Superior solderability and resistance to soldering heat
• Ideal for wave or reflow soldering
0603 Series
Dimensions (mm)
Part No.
CMFA3450103_
CMFA3970103_
CMFA3900223_
CMFA3950473_
CMFA3950104_
CMFA3950224_
CMFA3550103_
CMFA3950683_
CMFA4100564_
Resistance at
25ºC (KΩ)
10
10
22
47
100
220
10
68
560
B-Constant
(25/85ºC (K)
3450
3970
3900
3950
3950
3950
3550
3950
4100
1206 Series
Part No.
CMFC3200221_
CMFC3200331_
CMFC3250471_
CMFC3350102_
CMFC3400222_
CMFC3400332_
CMFC3400472_
CMFC3400682_
CMFC3500103_
CMFC3900103_
CMFC3900153_
CMFC3950223_
CMFC4000333_
CMFC4100473_
CMFC4100683_
CMFC4200104_
CMFC4300224_
Resistance at
25ºC (KΩ)
0.22
0.33
0.47
1.0
2.2
3.3
4.7
6.8
10
10
15
22
33
47
68
100
220
B-Constant
(25/85ºC (K)
3200
3200
3250
3350
3400
3400
3400
3400
3500
3900
3900
3950
4000
4100
4100
4200
4300
Size
0402
(1005)
0603
(1608)
0805
(2012)
1206
(3216)
L
(Length)
.04± .006
(1.0± 0.15)
.063± .006
(1.6± 0.15)
.08± .008
(2.0± 0.20)
.126± .008
(3.2± 0.20)
W
(Width)
.02± .004
(0.5± 0.10)
.031± .006
(0.8± 0.15)
.05± .008
(1.25± 0.2)
.063± .008
(1.6± 0.20)
T
(Thickness)
.024 max
(0.60 max)
.037 max
(0.95 max)
.05 max
(1.25 max)
.063 max
(1.6 max)
M
(Width of termination Point)
0.004 min
(0.10 min)
.004 max
(0.10 max)
.006 max
(0.15 max)
.008 max
(0.20 max)
