GE
Sensing
Features
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)
Temperature sensing for industrial products such as
pharmaceuticals, chemicals, food, etc.
• 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.
NTC Diode
Thermometrics
Thermistors
NTC Diode is a Thermometrics
product. Thermometrics has
joined other GE high-technology
sensing businesses under a new
name—GE Industrial, Sensing.
g
GE
Sensing
Type DK
Specifications
Chip thermistor in DO-35 glass package
DK-N
0.08 in (2 mm)
maximum
0.02 in (0.5 mm)
nominal
1.06 in (27 mm)
minimum
0.2 in (4.2 mm)
maximum
DK-H
0.08 in (2 mm)
nominal
Inside radius
0.05 in (1.2 mm)
nominal
0.16 in (4 mm)
maximum
Ø 0.02 in (0.5 mm)
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
0.8 in (19.5 mm) ±1
0.1 in (2.8 mm)
nominal
NTC Type DK wires should not be bent
within 0.08 in (2 mm) of glass body
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)
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
Ω
2000
5000
10,000
10,000
12,000
10,000
20,000
30,000
50,000
100,000
200,000
500,000
Material B 25/85 K Code
system
R25 ±1%
2
2
2
5A
5A
3
3
3
3
3
G
D
3540 ±1%
3540 ±1%
3540 ±1%
3730 ±2%
3730 ±2%
Code
R25 ±2%
Code
R25 ±3%
Code
R25 ±5%
Code
R25 ±10%
DKA202*2 DKA202*3
DKA502*2 DKA502*3
DKA103*2 DKA103*3
DKC103*3
DKC123*2 DKC123*3
DKA202*5 DKA202*10
DKA502*5 DKA502*10
DKA103*5 DKA103*10
DKC103*5 DKC103*10
DKC123*5 DKC123*10
DKF103*5 DKF103*10
DKF203*5 DKF203*10
DKF303*5 DKF303*10
DKF503*5 DKF503*10
DKF104*5 DKF104*10
DKG204*5 DKG204*10
DKD504*5 DKD504*10
DKD105*5 DKD105*10
3960 ±1% DKF103*1 DKF103*2 DKF103*3
3960 ±1% DKF203*1 DKF203*2 DKF203*3
3960 ±1% DKF303*1 DKF303*2 DKF303*3
3960 ±1% DKF503*1 DKF503*2 DKF503*3
3960 ±1% DKF104*1 DKF104*2 DKF104*3
4263 ±2%
4573 ±2%
4573 ±2%
1,000,000 D
See separate tables for resistance
_
temperature data
GE
Sensing
Type DKM
Specifications
Glass encapsulated SMD thermistor
0.09 in (2.2 mm) maximum
0.04 in
(1 mm)
minimum
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)
NTC Type DKM wires should not be bent
within 0.08 in (2 mm) of glass body
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.
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)
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 suffix “AB”
• Operation to 572°F (300°C); no solder coating on
lead-wires
R25
Ω
2000
5000
10,000
10,000
10,000
20,000
30,000
50,000
100,000
200,000
500,000
Material B 25/85 K Code
system
R25 ±1%
2
2
2
5A
3
3
3
3
3
G
D
3540 ±1%
3540 ±1%
3540 ±1%
3730 ±2%
Code
R25 ±2%
Code
R25 ±3%
Code
R25 ±5%
Code
R25 ±10%
DKA202M2 DKA202M3 DKA202M*5 DKA202M10
DKA502M*2 DKA502M3 DKA502M5 DKA502M10
DKA103M2 DKA103M3 DKA103M5 DKA103M10
DKC103M3 DKC103M5 DKC103M10
3960 ±1% DKF103M1 DKF103M2 DKF103M3 DKF103M5 DKF103M10
3960 ±1% DKF203M1 DKF203M2 DKF203M3 DKF203M5 DKF203M10
3960 ±1% DKF303M1 DKF303M2 DKF303M3 DKF303M5 DKF303M10
3960 ±1% DKF503M1 DKF503M2 DKF503M3 DKF503M5 DKF503M10
3960 ±1% DKF104M1 DKF104M2 DKF104M3 DKF104M5 DKF104M10
4263 ±2%
4573 ±2%
4573 ±2%
_
DKG204M5 DKG204M10
DKD504M5 DKD504M10
DKD105M5 DKD105M10
1,000,000 D
See separate tables for resistance temperature data
GE
Sensing
Type GE
Specifications
Glass encapsulated DO-35 package
Tinned AWG 24
1.15 in (29.2 mm)
± 0.1
0.155 in
(3.93 mm)
maximum
1.15 in (29.2 mm)
± 0.1
Ø 0.075 in
(1.9 mm)
maximum
NTC Type GE dimensions
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)
Options
•
•
•
•
•
•
For reel taping “R” suffix
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
Material System
GE5.5*
GE5.5*
GE7.3
GE7.3
GE10.1
GE7.6
GE7.6
GE7.6
GE9.7A
GE9.8
GE9.8
GE9.7B
GE9.7B
GE12.3
GE13.8
GE14.5
GE16.4
Beta 25/85
2983
2983
3499
3499
4102
3553
3553
3553
3992
3974
3974
3952
3952
4365
4567
4661
4848
Type Number
AL03006-165.9-55-K
AL03006-331.8-55-K
AL03006-624-73-K
AL03006-1248-73-K
AL03006-1576-101-K
AL03006-1847-76-K
AL03006-2463-76-K
AL03006-3079-76-K
AL03006-5818-97-K
AL03006-11.7K-98-K
AL03006-17.53K-98-K
AL03006-29.1K-97-K
AL03006-58.2K-97-K
AL03006-111.3K-123-K
AL03006-269.8K-138-K
AL03006-535K-145-K
AL03006-2.6M-164-K
Ro@25C (Ω)
250
500
1K
2K
2786
3K
4K
5K
10K
20K
30K
50K
100K
200K
500K
1M
5M
*maximum operating temperature 302°F (150°C)
GE
Sensing
Type MELF
Specifications
Glass encapsulated SMD thermistor
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)
0.13 to 0.146 in
(3.3 to 3.71 mm)
0.016 to 0.022 in
(0.41 to 0.56 mm)
NTC Type MELF dimensions
Description
Hermetically sealed, glass encapsulated thermistor in
SOD-80 SMD package.
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)
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” suffix
Other resistances in teh range 250
Ω
to 5 MΩ available
Other tolerances, tolerances at other temperatures
Material System
GE5.5*
GE5.5*
GE7.3
GE7.3
GE10.1
GE7.6
GE7.6
GE7.6
GE9.7A
GE9.8
GE9.8
GE9.7B
GE9.7B
GE12.3
GE13.8
GE14.5
GE16.4
Beta 25/85
2983
2983
3499
3499
4102
3553
3553
3553
3992
3974
3974
3952
3952
4365
4567
4661
4848
Type Number
03006-165.9-55-K
03006-331.8-55-K
03006-624-73-K
03006-1248-73-K
03006-1576-101-K
03006-1847-76-K
03006-2463-76-K
03006-3079-76-K
03006-5818-97-K
03006-11.7K-98-K
03006-17.53K-98-K
03006-29.1K-97-K
03006-58.2-97-K
03006-111.3K-123-K
03006-269.8K-138-K
03006-535K-145-K
03006-2.6M-164-K
Ro@25C (Ω)
250
500
1K
2K
2786
3K
4K
5K
10K
20K
30K
50K
100K
200K
500K
1M
5M
*maximum operating temperature 302°F (150°C)
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