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NTC Thermistors
Conformity to RoHS Directive
NTCDS Series(Lead Type)
NTCGF Series(Resin DIP cable type)
FEATURES
? This series features a glass-sealed construction identical to that of DHDs (Double Heatsink Diodes). They are thus highly reliable and
resistant to high relative humidity.
? Tight tolerances are maintained in resistance vs. temperature characteristics.
? The application of semiconductor mass production techniques has resulted in considerable size reduction and improved consistency.
PRODUCT IDENTIFICATION
NTC
(1) (2) (3)
(4)
(5)
(6)
(7) (8) (9) (10) (11)
(12)
(1) This code denotes NTC thermistors.
(2) Structural classification code
(6) Nominal resistance
This code indicates the resistance value existing at the speci-
fied ambient temperature by two significant digits followed by
D
G
Diode shape(Axial lead type)
Multilayer element
the digit 0(zero).
(Example)
(3) Assembly classification code
470 ?
471
S
A
B
Without processing
Folded radial lead wire
Folded radial lead wire with insulation tube
5k ?
10k ?
150k ?
502
103
154
C
D
E
Short cut lead wire
Kinked lead wire with insulation tube
Kinked lead wire
(7) Nominal resistance tolerance
Tolerance is identified by the following codes.
F
Z
Resin DIP cable type
Others
Code
F
Tolerance(%)
±1
(4) B constant(Resistance temperature characteristics)
This code indicates the value of B constant using a combination
of one numeric and one alphabetic character.
G
H
J
K
X
±2
±3
±5
±10
Others
Numeric code
B constant(K)
Alphabetic code
B constant(K)
3
4
3000
4000
A
B
0 to 50
51 to 100
(8) Ambient temperature for nominal resistance
Ambient temperatures for specified nominal-resistance values
Note: Although B constants are
expressed as 3A, 3B, 4A, 4B, etc.
using these two tables, the
tolerances;they have the meaning
shown in the example below.
5 5000 C
D
E
F
G
alphabetic characters do not denote H
J
K
L
101 to 150
151 to 200
201 to 250
251 to 300
301 to 350
351 to 400
401 to 450
451 to 500
501 to 550
are indicated using the following codes.
Code Ambient temperature(°C)
A –20
B 0
C 25
D 100
E 200
F 300
(Example)
3A=3010(K)
3A=3050(K)
That is, the alphabetic character(in
M
N
P
Q
551 to 600
601 to 650
651 to 700
701 to 750
G
X
(9) Dimensional code
20
Others
this example, A) indicates the range R
of values that can be specified by the S
751 to 800
801 to 850
3
4
3018 type
4020 type
thermistor user.
T
U
851 to 900
901 to 950
5
Resin DIP shape
(Resin DIP type: G)
V
951 to 999
(10) Plating specification code of lead wire
(5) B constant tolerance
This code indicates tolerances using the following code.
N
S
Ni
Sn
Code
Tolerance(%)
(11) Packaging style
F
G
H
J
±1
±2
±3
±5
B
T
K
Bulk
Taping(Tape width: 52mm)
Taping(Tape width: 26mm)
K
±10
(12) TDK internal code
? Conformity to RoHS Directive: This means that, in conformity with EU Directive 2002/95/EC, lead, cadmium, mercury, hexavalent chromium, and specific
bromine-based flame retardants, PBB and PBDE, have not been used, except for exempted applications.
? All specifications are subject to change without notice.
002-03 / 20111004 / eb225_ntcds.fm
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