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NTC Thermistors

NTC & PTC Thermistors

Chip NTC Thermistor

Applications

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 kind

Characteristics

Miniature size
No lead Ideal for high density
SMT installation
Superior solderability and resistance to soldering heat
Ideal for wave or reflow soldering

Part Numbering

CMF B 3950 103 J N T
Chip NTC thermistor Size Code B-value (25/85ºC) Resistance at 25ºC (Ω) Tolerance Termination Packaging
Code Inches 103 10×103 F ±1% P Pd B Bulk
C 1206 104 10×104 G ±2% N Nickel Barrier T Tape & Reel
B 0805 H ±3%
A 0603 J ±4%
X 0402 K ±10%

Dimensions

Size L
(Length)
W
(Width)
T
(Thickness)
M
(Width of
termination Point)
0402
(1005)
.04± .006
(1.0± 0.15)
.02± .004
(0.5± 0.10)
.024 max
(0.60 max)
.004 min
(0.10 min)
0603
(1608)
.063± .006
(1.6± 0.15)
.031± .006
(0.8± 0.15)
.037 max
(0.95 max)
.004 min
(0.10 min)
0805
(2012)
.08± .008
(2.0± 0.20)
.05± .008
(1.25± 0.2)
.05 max
(1.25 max)
.006 min
(0.15 min)
1206
(3216)
.126± .008
(3.2± 0.20)
.063± .008
(1.6± 0.20)
.063 max
(1.60 max)
.008 min
(0.20 min)

Product Series

 0402 Series
Part No. Resistance at
25°C (KΩ)
B-Constant
25/85°C (K)
CMFX3950103 10 3950
CMFX4050473 47 4050
CMFX4050104 100 4050
0603 Series
Part No. Resistance at
25°C (KΩ)
B-Constant
25/85°C (K)
CMFA3450103 10 3450
CMFA3970103 10 3970
CMFA3900223 22 3900
CMFA3950473 47 3950
CMF3950104 100 3950
CMFA3950224 220 3950
CMFA3550103 10 3550
CMFA3950683 68 3950
CMFA4100564 560 4100
0805 Series
Part No. Resistance at
25°C (KΩ)
B-Constant
25/85°C (K)
CMFB3435472 4.7 3435
CMFB3435103 10 3435
CMFB3550103 10 3550
CMFB390023 22 3900
CMFB4000473 47 4000
CMFB4000104 100 4000
CMFB3970103 10 3970
CMFB3200202 2 3200
CMFB3650153 15 3650
CMFB4050333 33 4050
1206 Series
Part No. Resistance at
25°C (KΩ)
B-Constant
25/50°C (K)
CMFC3200221 0.22 3200
CMFC3200331 0.33 3200
CMFC3250471 0.47 3250
CMFC3250681 0.68 3250
CMFC3350102 1.0 3350
CMFC3400222 2.2 3400
CMFC3400332 3.3 3400
CMFC3400472 4.7 3400
CMFC3400682 6.8 3400
CMFC3500103 10 3500
CMFC3900103 10 3900
CMFC3900153 15 3900
CMFC3950223 22 3950
CMFC4000333 33 4000
CMFC4100473 47 4100
CMFC4200683 68 4100
CMFC4200104 100 4200
CMFC4300224 220 4300