NTC Diode
Thermometrics
Thermistors
A range of NTC chip thermistors in DO-35 style
glass package (diode outline) with axial solder-
coated copper-clad steel wires.
• Designed for accurate temperature
measurement, control and compensation
• Tight tolerances on resistance and B value
• Operation up to 482°F (250°C) with excellent
stability
• Glass body provides hermetic seal and
voltage insulation and excellent stability
• Designed for cost effective solid state sensor
• Lead-wires metallurgically bonded to
thermistor element for improved reliability
(Type GE only)
• Resistant to corrosive atmospheres and harsh
environments
• Available on axial bandolier to IEC-286-1/
EIA-468A and packet taped to EIA RS-481 for
MELF.
• Also available loose-packed with axial, radial
and SMD wire forms
• Suitable for automotive, telecom (battery
packs), HVAC and white goods applications
• Temperature sensing for household
appliances such as rice cookers, electronic
ranges, ovens, etc.
• Temperature sensing for industrial products
such as pharmaceuticals, chemicals, food,
etc.components.
Amphenol
Advanced Sensors
2
Type DK
Specications
Chip thermistor in DO-35 glass package
Options
• Other resistance values within the ranges
shown; e.g. code DKA302*2 for 3000 Ω
±2% at 77°F (25°C)
• Reference temperatures in the range 0°F
to 302°F (-18°C to 150°C)
• Operation to 572°F (300°C) (no solder
coating on wires)
• Wire lengths 0.16 in to 1.26 in (4 mm to
32 mm)
±0.04 in (±1 mm) for DK-N; up to 1.02 in
(26 mm) for DK-H
Coding
Replace * in the codes shown below as
follows:
• Axial, loose-packed: N
• Axial, bandoliered: B
• Radial, loose-packed: H
• Surface mount, loose-packed: M
R25 ΩMaterial
system
B 25/85 K Code
R25 ±2%
Code
R25 ±3%
Code
R25 ±5%
Code
R25 ±10%
2000 2 3540 ±1% DKA202*2 DKA202*3 DKA202*5 DKA202*10
5000 2 3540 ±1% DKA502*2 DKA502*3 DKA502*5 DKA502*10
10,000 2 3540 ±1% DKA103*2 DKA103*3 DKA103*5 DKA103*10
10,000 5A 3730 ±2% DKC103*3 DKC103*5 DKC103*10
12,000 5A 3730 ±2% DKC123*2 DKC123*3 DKC123*5 DKC123*10
10,000 33960 ±1% DKF103*2 DKF103*3 DKF103*5 DKF103*10
20,000 33960 ±1% DKF203*2 DKF203*3 DKF203*5 DKF203*10
30,000 33960 ±1% DKF303*2 DKF303*3 DKF303*5 DKF303*10
50,000 33960 ±1% DKF503*2 DKF503*3 DKF503*5 DKF503*10
100,000 33960 ±1% DKF104*2 DKF104*3 DKF104*5 DKF104*10
200,000 G 4263 ±2% DKG204*5 DKG204*10
500,000 D4573 ±2% DKD504*5 DKD504*10
1,000,000 D4573 ±2% DKD105*5 DKD105*10
Data
• Operating temperature: -40°F to 482°F (-40°C to 250°C)
• Thermal time constant: 7 seconds (cooling in air)
• Dissipation factor: 3.0 mW/K
• Mass: 0.2 g
• Packing/MOQ: 1000/box (loose),
5000/reel (bandoliered)
NTC Type DK wires should not be bent within 0.08 in (2 mm) of glass body
0.1 in (2.8 mm)
nominal
DK-N
0.08 in (2 mm)
maximum
0.02 in (0.5 mm)
nominal
0.08 in (2
mm)
nominal
0.16 in (4 mm)
maximum
1.06 in (27 mm)
minimum
0.2 in (4.2 mm)
maximum
Inside radius
0.05 in (1.2
mm)
nominal
0.8 in (19.5 mm) ±1
Ø 0.02 in (0.5 mm)
DK-H
See separate tables for resistance-temperature data..
Consult factory for additional tolerance requirements.
3
Type DKM
Specications
Glass encapsulated SMD thermistor
Description
A range of thermistors in DO-35 style glass
package (diode outline formed for surface
lead-wires and applications) with solder-
coated copper-clad steel lead-wires.
Options
• Other resistance values within the ranges
shown; e.g. code DKA302M2 for 3000 Ω
±2% at 77°F (25°C)
• Reference temperatures in the range 32°F to
302°F (0°C to 150°C)
• For tape and reel, add sufx “AB”
• Operation to 572°F (300°C); no solder
coating on lead-wires
Data
• Operating temperature: -40°F to 482°F (-40°C to 250°C)
• Thermal time constant: 7 seconds (cooling in air)
• Dissipation factor: 3.0 mW/K
• Mass: 0.2 g
• Packing/MOQ: 1000/box (loose)
NTC Type DKM wires should not be bent within 0.08 in (2 mm) of glass body
0.04 in
(1 mm)
minimum 0.2 in (4.2 mm) maximum
0.4 in (9.0 mm)/
0.4 in (9.5 mm )
0.09 in (2.2 mm) maximum
0.04 in (1 mm) minimum
R25 ΩMaterial
System
B 25/85 K Code
R25 ±2%
Code
R25 ±3%
Code
R25 ±5%
Code
R25 ±10%
2000 2 3540 ±1% DKA202M2 DKA202M3 DKA202M*5 DKA202M10
5000 2 3540 ±1% DKA502M*2 DKA502M3 DKA502M5 DKA502M10
10,000 2 3540 ±1% DKA103M2 DKA103M3 DKA103M5 DKA103M10
10,000 5A 3730 ±2% DKC103M3 DKC103M5 DKC103M10
10,000 33960 ±1% DKF103M2 DKF103M3 DKF103M5 DKF103M10
20,000 33960 ±1% DKF203M2 DKF203M3 DKF203M5 DKF203M10
30,000 33960 ±1% DKF303M2 DKF303M3 DKF303M5 DKF303M10
50,000 33960 ±1% DKF503M2 DKF503M3 DKF503M5 DKF503M10
100,000 33960 ±1% DKF104M2 DKF104M3 DKF104M5 DKF104M10
200,000 G 4263 ±2% DKG204M5 DKG204M10
500,000 D4573 ±2% DKD504M5 DKD504M10
1,000,000 D4573 ±2% DKD105M5 DKD105M10
See separate tables for resistance-temperature data..
Consult factory for additional tolerance requirements.
4
Type GE
Specications
Glass encapsulated DO-35 package
Options
• For reel taping “R” sufx
• Nickel leads for welding
• Other resistances in the range 250 Ω
to 5 MΩ
• Other tolerances, tolerances at other
temperatures
• Alternative leads lengths, lead
materials
• Can be expanded to 572°F (300°C)
with nickel leads
Ro@25°
C (Ω )
Material System Beta 25/85 Type Number
250 GE5.5* 2983 AL03006-165.9-55-K
500 GE5.5* 2983 AL03006-331.8-55-K
1K GE7.3 3499 AL03006-624-73-K
2K GE7.3 3499 AL03006-1248-73-K
2786 GE10.1 4102 AL03006-1576-101-K
3K GE7.6 3553 AL03006-1847-76-K
4K GE7.6 3553 AL03006-2463-76-K
5K GE7.6 3553 AL03006-3079-76-K
10K GE9.7A 3992 AL03006-5818-97-K
20K GE9.8 3974 AL03006-11.7K-98-K
30K GE9.8 3974 AL03006-17.53K-98-K
50K GE9.7B 3952 AL03006-29.1K-97-K
100K GE9.7B 3952 AL03006-58.2K-97-K
200K GE12.3 4365 AL03006-111.3K-
123-K
500K GE13.8 4567 AL03006-269.8K-
138-K
1M GE14.5 4661 AL03006-535K-145-K
5M GE16.4 4848 AL03006-2.6M-164-K
*maximum operating temperature 302°F (150°C)
Data
• Standard resistance tolerance: ±10% @ 77°F (25°C)
• Dissipation constant: 3.0 mW/K
• Time constant: 7 seconds
• Operating range: -58°F to 400°F (-50°C to 204°C
NTC Type GE dimensions
Tinned AWG 24
0.155 in
(3.93 mm)
maximum
1.15 in (29.2 mm)
± 0.1
1.15 in (29.2
mm)
± 0.1
Ø 0.075 in
(1.9 mm)
maximum
5
Ro@25°
C (Ω )
Material System Beta 25/85 Type Number
250 GE5.5* 2983 03006-165.9-55-K
500 GE5.5* 2983 03006-331.8-55-K
1K GE7.3 3499 03006-624-73-K
2K GE7.3 3499 03006-1248-73-K
2786 GE10.1 4102 03006-1576-101-K
3K GE7.6 3553 03006-1847-76-K
4K GE7.6 3553 03006-2463-76-K
5K GE7.6 3553 03006-3079-76-K
10K GE9.7A 3992 03006-5818-97-K
20K GE9.8 3974 03006-11.7K-98-K
30K GE9.8 3974 03006-17.53K-98-K
50K GE9.7B 3952 03006-29.1K-97-K
100K GE9.7B 3952 03006-58.2-97-K
200K GE12.3 4365 03006-111.3K-123-K
500K GE13.8 4567 03006-269.8K-138-K
1M GE14.5 4661 03006-535K-145-K
5M GE16.4 4848 03006-2.6M-164-K
*maximum operating temperature 302°F (150°C)
Type MELF
Specications
Glass encapsulated SMD thermistor
Description
Hermetically sealed, glass encapsulated
thermistor in SOD-80 SMD package.
Options
• For ±5% @ 77°F (25°C), replace “K” with “J”
• For ±3% @ 77°F (25°C), replace “K” with
“H”
• For ±2% @ 77°F (25°C), replace “K” with
“G”
• For reel taping add “R” sufx
• Other resistances in the range 250 Ω to 5
MΩ available
• Other tolerances, tolerances at other
temperatures
Data
• Standard resistance tolerance: ±10% @ 77°F
(25°C)
• Dissipation constant: 3.0 mW/°C
• Time constant: 7 seconds
• Operating range: -58°F to 400°F (-50°C to 204°C
NTC Type MELF dimensions
Tinned dumet contacts
(2 places)
Glass
Ø 0.063 to 0.067 in
(1.6 to 1.7 mm)
0.016 to 0.022 in
(0.41 to 0.56 mm)
0.016 to 0.022 in
(0.41 to 0.56 mm)
0.13 to 0.146 in
(3.3 to 3.71 mm)
6
Type TH
Specications
Glass encapsulated radial lead thermistor
• The tolerance of resistance is ±5% for standard
device
• The tolerance of B constant is ±2% for
standard device The constant is determined by
the equation:
B = 3853.9 In (R25/R50)
R25 and R50 represent the thermistor
resistance
at 77°F and 122°F (25°C and 50°C) respectively
• Others: For non-standard devices, consult
Thermometrics
NTC Type TH dimensions
Ø 0.02in (0.5 mm) maximum
Ø 0.08 in (2 mm)
maximum
0.17 in (4.2 mm)
maximum
1.02 in (26 mm)
minimum
1.02 in (26 mm)
minimum
Part
Number
Resistance
(25 Ω )
ß
Constant
(25/50)
Recommended
Maximum
Operating
Current
at 77°F (25ºC)
Maximum
Permissible
Current at
77°F (25ºC)
TH220J33G 2.0 K 3375 K 0.22 mA 30.0 mA
TH225J13G 2.545 K 3745 K 0.22 mA 30.0 mA
TH238J34G 3.896 K 3434 K 0.20 mA 26.5 mA
TH253J34G 5.369 K 3434 K 0.16 mA 24.0 mA
TH310J34G 10.74 K 3434 K 0.13 mA 20.0 mA
TH310J36G 10.0 K 3684 K 0.14 mA 20.0 mA
TH310J39G 10.0 K 3933 K 0.14 mA 20.0 mA
TH315J39G 15.0 K 3933 K 0.12 mA 17.0 mA
TH320J39G 20.0 K 3952 K 0.10 mA 15.0 mA
TH349J39G 49.12 K 3952 K 0.06 mA 10.0 mA
TH350J39G 50.0 K 3952 K 0.06 mA 10.0 mA
TH398J40G 98.63 K 4014 K 0.045 mA 5.0 mA
TH410J40G 100.0 K 4014 K 0.045 mA 5.0 mA
TH420J34G 200.0 K 3450 K 0.015 mA 3.5 mA
TH423J41G 231.4 K 4176 K 0.015 mA 3.5 mA
TH510J44G 1,000 K 4491 K 0.007 mA 1.5 mA
TH513J44G 1,388 K 4491 K 0.005 mA 1.0 mA
Dissipation
Factor
(in still air)
Time
Constant
(in still air)
Operating
Temperature
Range
Rated Power
at 77°F (25ºC)
2.0 (mW/ºC) 25 (seconds) -40°F to 482°F
(-40°C to 250ºC)
25 mW
7
1 2 3 / 5 4 6 7 8
Type Resistance
R(25°C)
Resistance /
B Value
Tolerance
B Value
Range
Standard
Temperature Lead Wire Type
Packing
& Other
Description
Diode Type
Thermistor
225:25x102
= 2.5kΩ
310:10x103
=10kΩ
410:10x104
=100kΩ
F : ± 1%
G : ± 2%
H : ± 3%
J : ± 5%
K : ± 10%
L : ± 15%
M : ± 20%
:
:
S : others
S : ± 1.5%
33:3300k
~3399k
40:4000k
~4099k
42:4200k
~4299k
J : -18°C
A : 0°C
B : 25°C
C : 50°C
D : 75°C
E : 85°C
F : 100°C
G : 150°C
H : 200°C
:
:
S : others
NR : CP wire
NI : Ni plated
Sn : Sn plated
:
:
:
:
S : others
T5 : Taping
(52mm,
Ammo)
---------------
R3 : Reel
(52mm, 3KP)
---------------
C11 : 11mm
(Wire cutting)
---------------
Other Special
Shape or Dim
Explanation of Part Number
TH 410 S 40 F DSN -T5
(1) (2) (3) (4) (5) (6) (7) (8)
AAS-920-320D-07/2015
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Other company names and product names used in this document are the registered trademarks or
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Amphenol
Advanced Sensors
