Thermometrics NTC Thermistors

Thermometrics Diode Series of Glass-Encapsulated NTC Thermistors consists of a range of NTC chip thermistors in DO-35 style glass package (diode outline) with axial solder-coated copper-clad steel wires. Glass body provides hermetic seal and voltage insulation and excellent stability. Designed for accurate temperature measurement, control and compensation in various applications, including automotive, telecom, HVAC and white goods. Also for use in temperature sensing for household appliances, such as rice cookers, electronic ranges and ovens, and industrial products, such as pharmaceuticals, chemicals, and components.

Application

Automotive
Telecom (Battery Packs)
HVAC
White Goods
Appliances (Rice Cookers, Electric Ranges, Ovens, etc.)
Industrial Product Components (Pharmaceuticals, Chemicals, Food, etc.)

Features

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
Resistant to corrosive atmospheres and harsh environments
Lead wires metallurgically bonded to thermistor element for improved reliability (Type GE only)
Available on axial bandolier to IEC-286-1/EIA-468A
Also available loose-packed with axial and radial wire forms

Specifications: Type DK

Type DK: Chip thermistor in DO-35 glass package.

Specifications
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
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 1.06 in to 1.26 in (27 mm to 32 mm) ±0.04 in (±1 mm) for DK-N; up to 1.02 in (26 mm) for DK-H

Part Numbers – Type DK

R25Ω	Material 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	3	3960 ±1%	DKF103*2	DKF103*3	DKF103*5	DKF103*10
20,000	3	3960 ±1%	DKF203*2	DKF203*3	DKF203*5	DKF203*10
30,000	3	3960 ±1%	DKF303*2	DKF303*3	DKF303*5	DKF303*10
50,000	3	3960 ±1%	DKF503*2	DKF503*3	DKF503*5	DKF503*10
100,000	3	3960 ±1%	DKF104*2	DKF104*3	DKF104*5	DKF104*10
200,000	G	4263 ±2%	–	–	DKG204*5	DKG204*10
500,000	D	4573 ±2%	–	–	DKD504*5	DKD504*10
1,000,000	D	4573 ±2%	–	–	DKD105*5	DKD105*10

Specifications: Type GE

Type GE: Glass encapsulated DO-35 package. Lead wires metallurgically bonded to thermistor element for improved reliability.

Specifications
Operating Range	-58°F to 400°F (-50°C to 204°C)
Time Constant	7 seconds
Dissipation Constant	3.0 mW/K
Standard Resistance Tolerance	±10% @ 77°F (25°C)
Options: For reel taping Nickel leads for welding Other resistances in the range 250 Ω to 5 MΩ Other tolerances at other temperatures Alternative lead lengths and materials Can be expanded to 572°F (300°C) with nickel leads

Part Numbers – Type GE

R25Ω	Material System	B25/85	Type Number
250	GE5.5*	2983	03006-165.9-55-G100
500	GE5.5*	2983	03006-331.8-55-G100
1K	GE7.3	3499	03006-624-73-G100
2K	GE7.3	3499	03006-1248-73-G100
2786	GE10.1	4102	03006-1576-101-G100
3K	GE7.6	3553	03006-1847-76-G100
4K	GE7.6	3553	03006-2463-76-G100
5K	GE7.6	3553	03006-3079-76-G100
10K	GE9.7A	3992	03006-5818-97-G100
20K	GE9.8	3974	03006-11.7K-98-G100
30K	GE9.8	3974	03006-17.53K-98-G100
50K	GE9.7B	3952	03006-29.1K-97-G100
100K	GE9.7B	3952	03006-58.2-97-G100
200K	GE12.3	4365	03006-111.3K-123-G100
500K	GE13.8	4567	03006-269.8K-138-G100
1M	GE14.5	4661	03006-535K-145-G100
5M	GE16.4	4848	03006-2.6M-164-G100
*Maximum Operating Temperature: 302°F (150°C)

Specifications: Type MELF

Type MELF: Hermetically-sealed, glass encapsulated thermistor in SOD-80 SMD package.

Specifications
Operating Range	-58°F to 400°F (-50°C to 204°C)
Time Constant	7 seconds
Dissipation Constant	3.0 mW/°C
Standard Resistance Tolerance	±10% @ 77°F (25°C)
Options: Pocket taping Other resistances in the range 250 Ω to 5 MΩ available Other tolerances at other temperatures

Part Numbers – Type MELF

R25Ω	Material System	B 25/85	Type Number
250	GE5.5*	2983	AL03006-165.9-55-G1
500	GE5.5*	2983	AL03006-331.8-55-G1
1K	GE7.3	3499	AL03006-624-73-G1
2K	GE7.3	3499	AL03006-1248-73-G1
2786	GE10.1	4102	AL03006-1576-101-G1
3K	GE7.6	3553	AL03006-1847-76-G1
4K	GE7.6	3553	AL03006-2463-76-G1
5K	GE7.6	3553	AL03006-3079-76-G1
10K	GE9.7A	3992	AL03006-5818-97-G1
20K	GE9.8	3974	AL03006-11.7K-98-G1
30K	GE9.8	3974	AL03006-17.53K-98-G1
50K	GE9.7B	3952	AL03006-29.1K-97-G1
100K	GE9.7B	3952	AL03006-58.2K-97-G1
200K	GE12.3	4365	AL03006-111.3K-123-G1
500K	GE13.8	4567	AL03006-269.8K-138-G1
1M	GE14.5	4661	AL03006-535K-145-G1
5M	GE16.4	4848	AL03006-2.6M-164-G1
*Maximum Operating Temperature: 302°F (150°C)

Specifications: Type TH

Type TH: Glass encapsulated radial lead thermistor.

Specifications
Operating Temp Range	-40°F to 392°F (-40°C to 200°C)
Time Constant	25 seconds (in still air)
Dissipation Factor	2.0 mW/°C (in still air)
Rated Power	25mW
Standard Resistance Tolerance	±5%

Part Numbers – Type TH

Part Number	Resistance (25Ω)	ß Constant (25/50)	Recommended Max Operating Current @ 77°F (25°C)	Max Permissable Current @ 77°F (25°C)
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