Leaded Thermistors
Glass Encapsulated Thermistor
DO-35 Standard Series Glass Encapsulated Thermistors
Description
Littelfuse low cost glass encapsulated thermistors are
manufactured using super stable NTC chips which are hermetically
sealed in a glass (DO-35 diode style) package. The result is a
device which exhibits excellent long term reliability and stability
even when subjected to severe environmental or thermal
conditions. Their uniform dimensions and axial lead configuration
make them especially suitable for use with automatic insertion
equipment.
Options
• Speacial Lead Forms
• Non-standard
resistance values
and tolerances
Dimensions
TINNED CCS, 1.0" LONG MIN
GLASS
BODY
specified temperatures
• Tape and Reel
Packaging
Features
A
B
Dimensions shown in inches.
• High temperature
• Excellent long-term
• Hermetically sealed
glass package
• High Voltage Insulation
• Tinned CSS Lead
capability to +300°C
C
A
• Point matched at
• Low cost
A
B
C
0.020”
±0.002”
Diam.
0.160"
MAX
0.075"B
MAX
0.020”±0.002”
0.075”
24 AWG Tinned CCS
Max
1.0” Long
Min
GLASS
ENCAPSULATED THERMISTORS
stability
Wires are Solderable
or Weldable
Part Numbering System
C
10 2 B G 1 A
0.160”
Max
Resistance @ 25ºC
Base Value
Multiplier, power of 10
Ex. 103 = 10 Ω x 103 = 10,000 Ω
GLASS BODY
R-T Curve
24 AWG (0.020" ± 0.002" DIA)
TINNED CCS, 1.0" LONG MIN
Resistance Tolerance
F = ±1%
G = ±2%
J = ±5%
K = ±10%
No Significance
Accuracy
Note: Not all combinations of Part Number codes are available. Contact Littelfuse for details.
0.075" MAX
0.160"
MAX
© 2021 Littelfuse, Inc. Revised: April 15, 2021
Specifications are subject to change without notice.
1
littelfuse.com
Leaded Thermistors
Glass Encapsulated Thermistor
DO-35 Standard Series Glass Encapsulated Thermistors
Specifications
Part
Number
Resistance *Resistance
Ohms
Tol. ± %
@25°C
@ 25°C
R-T
Curve
Temperature
Coefficient
(%/°C)
@ 25°C
Beta (K)
0-50°C
Beta (K)
25-85°C
Dissipation
Constant,
Nominal
(mW/°C)
Thermal
Time
Constant,
Max. Still Air
(seconds)
Thermal
Time
Constant,
Max. - Well
Stirred Oil
(seconds)
Temperature
Range
(°C)
501BG1J
500
5
B
-3.31
2941
_
2
5
0.5
-55 to +220
501BG1K
500
10
B
-3.31
2941
_
2
5
0.5
-55 to +220
102BG1J
1000
5
B
-3.31
2941
_
2
5
0.5
-55 to +220
102BG1K
1000
10
B
-3.31
2941
_
2
5
0.5
-55 to +220
102EG1K
1000
10
E
-3.67
3263
_
2
5
0.5
-55 to +220
102PS1G
1000
2
_
_
_
_
2
8
1
-55 to +150
102PS1J
1000
5
_
_
_
_
2
8
1
-55 to +150
162PS1J
1600
5
_
_
_
_
2
8
1
-55 to +300
182FG1K
1800
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
202FG1J
2000
5
F
-3.86
3419
_
2
5
0.5
-55 to +300
202FG1K
2000
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
202PS1J
2000
5
_
_
_
_
2
8
1
-55 to +300
252BG1K
2500
10
B
-3.3
2941
_
2
5
0.5
-55 to +220
252FG1J
2500
5
F
-3.86
3419
_
2
5
0.5
-55 to +300
252FG1K
2500
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
282FG1K
2800
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
222E1G1K
2186
10
E1
-3.82
3320
_
2
5
0.5
-55 to +300
302FG1K
3000
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
302JG1K
3000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
282FG1K
2800
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
302FG1K
3000
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
302JG1K
3000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
*Resistance tolerances of ± 1%, 2%, and 5% are available upon request
© 2021 Littelfuse, Inc. Revised: April 15, 2021
Specifications are subject to change without notice.
2
littelfuse.com
Leaded Thermistors
Glass Encapsulated Thermistor
DO-35 Standard Series Glass Encapsulated Thermistors
Specifications
Part
Number
Resistance *Resistance
Ohms
Tol. ± %
@25°C
@ 25°C
R-T
Curve
Temperature
Coefficient
(%/°C)
@ 25°C
Beta (K)
0-50°C
Beta (K)
25-85°C
Dissipation
Constant,
Nominal
(mW/°C)
Thermal
Time
Constant,
Max. Still Air
(seconds)
Thermal
Time
Constant,
Max. - Well
Stirred Oil
(seconds)
Temperature
Range
(°C)
332FG1K
3300
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
402FG4K
4000
10
F13
-3.88
3453
3540
2
5
0.5
-55 to +300
502E1G1K
5000
10
E1
-3.82
3320
_
2
5
0.5
-55 to +300
502FG1J
5000
5
F
-3.86
3419
_
2
5
0.5
-55 to +300
502FG1K
5000
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
502JG1K
5000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
682JG1K
6800
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
822JG1K
8200
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
123GG1K
12000
10
G
-4.03
3575
_
2
5
0.5
-55 to +150
123JG1K
12000
10
J
-4.4
3892
_
2
5
0.5
-55 to +150
153JG1K
15000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
203JG1F
20000
1
J
-4.4
3892
_
2
5
0.5
-55 to +300
203JG1J
20000
5
J
-4.4
3892
_
2
5
0.5
-55 to +300
103E1G1F
10000
1
E1
_
3320
3435
2
5
0.5
-55 to +250
103E1G1K
10000
10
E1
_
3320
_
2
5
0.5
-55 to +300
103FG1K
10000
10
F
-3.86
3419
_
2
5
0.5
-55 to +300
103GG1K
10000
10
G
-4.04
3575
_
2
5
0.5
-55 to +300
103JG1F
10000
1
J
-4.4
3892
_
2
5
0.5
-55 to +300
103JG1G
10000
2
J
-4.4
3892
_
2
5
0.5
-55 to +300
103JG1J
10000
5
J
-4.4
3892
_
2
5
0.5
-55 to +300
103JG1K
10000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
103JG1KE
10000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
*Resistance tolerances of ± 1%, 2%, and 5% are available upon request
© 2021 Littelfuse, Inc. Revised: April 15, 2021
Specifications are subject to change without notice.
3
littelfuse.com
Leaded Thermistors
Glass Encapsulated Thermistor
DO-35 Standard Series Glass Encapsulated Thermistors
Specifications
Part
Number
Resistance *Resistance
Ohms
Tol. ± %
@25°C
@ 25°C
R-T
Curve
Temperature
Coefficient
(%/°C)
@ 25°C
Beta (K)
0-50°C
Beta (K)
25-85°C
Dissipation
Constant,
Nominal
(mW/°C)
Thermal
Time
Constant,
Max. Still Air
(seconds)
Thermal
Time
Constant,
Max. - Well
Stirred Oil
(seconds)
Temperature
Range
(°C)
203JG1K
20000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
253JG1F
25000
1
J
_
3892
_
2
5
0.5
-55 to +300
253JG1K
25000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
303HG1K
30000
10
H
-4.29
3810
_
2
5
0.5
-55 to +300
303JG1F
30000
1
J
-4.4
3892
_
2
5
0.5
-55 to +300
303JG1J
30000
5
J
--4.4
3892
_
2
5
0.5
-55 to +300
303JG1K
30000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
403GG1K
40000
10
G
-3.88
3575
_
2
5
0.5
-55 to +300
503JG1F
50000
1
J
-4.4
3892
_
2
5
0.5
-55 to +300
503JG1J
50000
5
J
-4.4
3892
_
2
5
0.5
-55 to +300
503JG1K
50000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
683N1G1K
68000
10
N1
-4.5
3991
_
2
5
0.5
-55 to +300
753JG1K
75000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
104JG1F
100000
1
J
-4.4
3892
_
2
5
0.5
-55 to +300
104JG1H
100000
3
J
-4.4
3892
_
2
5
0.5
-55 to +300
104JG1J
100000
5
J
-4.4
3892
_
2
5
0.5
-55 to +300
104JG1K
100000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
104LG2K
100000
10
L1
-4.52
3920
4040
2
5
0.5
-55 to +300
104N1G1K
100000
10
N1
-4.5
3991
_
2
5
0.5
-55 to +300
104RG1J
100000
5
R
-4.68
4140
_
2
5
0.5
-55 to +300
104RG1K
100000
10
R
-4.68
4140
_
2
5
0.5
-55 to +300
224JG1K
220000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
*Resistance tolerances of ± 1%, 2%, and 5% are available upon request
© 2021 Littelfuse, Inc. Revised: April 15, 2021
Specifications are subject to change without notice.
4
littelfuse.com
Leaded Thermistors
Glass Encapsulated Thermistor
DO-35 Standard Series Glass Encapsulated Thermistors
Specifications
Part
Number
Resistance *Resistance
Ohms
Tol. ± %
@25°C
@ 25°C
R-T
Curve
Temperature
Coefficient
(%/°C)
@ 25°C
Beta (K)
0-50°C
Beta (K)
25-85°C
Dissipation
Constant,
Nominal
(mW/°C)
Thermal
Time
Constant,
Max. Still Air
(seconds)
Thermal
Time
Constant,
Max. - Well
Stirred Oil
(seconds)
Temperature
Range
(°C)
234RG1G
230000
2
R
-4.68
4140
_
2
5
0.5
-55 to +300
254JG1J
250000
5
J
-4.4
3892
3977
2
5
0.5
-55 to +300
254JG1K
250000
10
J
-4.4
3892
_
2
2
0.5
-55 to +300
304JG1K
300000
10
J
-4.4
3892
_
2
5
0.5
-55 to +300
334RG1K
330000
10
R
-4.68
4140
4263
2
5
0.5
-55 to +300
504RG1J
500000
5
R
-4.68
4140
_
2
5
0.5
-55 to +300
504RG1K
500000
10
R
-4.68
4140
_
2
5
0.5
-55 to +300
105RG1J
1000000
5
R
-4.68
4140
_
2
5
0.5
-55 to +220
105RG1K
1000000
10
R
-4.68
4140
_
2
5
0.5
-55 to +220
105V3G1K
1000000
10
V3
-4.68
4369
_
2
5
0.5
-55 to +220
205RG1K
2000000
10
R
-4.68
4140
_
2
5
0.5
-55 to +300
205V4G1K
2000000
10
V4
-4.85
4288
_
2
5
0.5
-55 to +300
375Y1G2K
3700000
10
Y1
-5.33
4584
4800
2
5
0.5
-55 to +300
505YG7K
5000000
10
Y
-5.22
4640
_
2
5
0.5
-55 to +300
*Resistance tolerances of ± 1%, 2%, and 5% are available upon request
Packaging
Packaging Option
Packaging Code
Standard Quantity
Standard
Tape and Reel
-TR
5000
EIA-296
Disclaimer Notice - Information furnished is believed to be accurate and reliable. However, users should independently evaluate the suitability of and test each
product selected for their own applications. Littelfuse products are not designed for, and may not be used in, all applications. Read complete Disclaimer Notice at:
www.littelfuse.com/disclaimer-electronics
© 2021 Littelfuse, Inc. Revised: April 15, 2021
Specifications are subject to change without notice.
5
littelfuse.com
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