Hi-Density Miniature Cartridge Heater Specifications and Tolerances

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Performance Ratings

Maximum Temperature: 1200°F (649°C)

Maximum Watt Density: 100-200 W/in² (15.5-31 W/cm²) depending on operating temperature.

Sheath Material

Standard: Type 304 Stainless Steel
Optional (1/8 in Heaters Only): Inconel 600

The maximum operating temperature and the life expectancy of a cartridge heater is dependent on two main factors:
1. The maximum recommended sheath temperature
2. The maximum ambient temperature for the termination selected
Consult Tempco if you require a recommendation for your application.

Dimensional Specifications

Nominal Diameter	1/8"		5/32"		3/16"
Nominal Diameter	in	(mm)	in	(mm)	in	(mm)
Actual Diameter	0.122	3.10	0.153	3.89	0.184	4.67
Diameter Tolerance	±.002 (-0.051)
Minimum Length	1.25 (31.8)
Maximum Length	12 (305)
Length Tolerance Heaters up to 3.5" (89 mm) long	±3/32 (2.4)
Length Tolerance Heaters over 3.5" (89 mm) long	±3% of Sheath Length