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Part Numbering
PTC Thermistors (POSISTORr) for Overcurrent Protection / for Overheat Sensing Lead Type
(Part Number)
qProduct
ID
Product ID
PT
wSeries
Code
FL
FM
GL
Series
for Overheat Sensing Lead Type
for Overheat Sensing with Lug-terminal
for Current Control (Over Current Protection ·
Inrush Current Suppression) Lead Type
PTC Thermistors
PT
q
GL
w
07
e
AR
r
220
t
M
y
3P51 A0
u
i
tResistance
Expressed by three-digit alphanumerics. The unit is ohm (Ω). The
first and second figures are significant digits, and the third figure
expresses the number of zeros which follow the two figures. If
there is a decimal point, it is expressed by the capital letter "R." In
this case, all figures are significant digits.
Ex.
Code
R22
2R2
220
yResistance
Tolerance
eDimensions
Code
04
05
07
09
10
12
13
14
16
18
20
Dimensions
Nominal Body Diameter 4mm Series
Nominal Body Diameter 5mm Series
Nominal Body Diameter 7mm Series
Nominal Body Diameter 9mm Series
Nominal Body Diameter 10mm Series
Nominal Body Diameter 12mm Series
Nominal Body Diameter 13mm Series
Nominal Body Diameter 14mm Series
Nominal Body Diameter 16mm Series
Nominal Body Diameter 18mm Series
Nominal Body Diameter 20mm Series
iPackaging
Code
A*
rTemperature
Characteristics
Code
AR
AS
BA
BB
BC
BD
BE
BF
BG
BH
Temperature Characteristics
Curie Point 120°C
Curie Point 130°C
Curie Point 110°C
Curie Point 100°C
Curie Point 90°C
Curie Point 80°C
Curie Point 70°C
Curie Point 60°C
Curie Point 50°C
Curie Point 40°C
B*
Packaging
Ammo Pack
Bulk
uIndividual
Specifications
Ex.
Code
3P51
Individual Specifications
Lead Type, others
Code
H
K
M
N
Q
Resistance Tolerance
±25%
±10%
±20%
±30%
Special Tolerance
Resistance
0.22Ω
2.2Ω
22Ω