1. Wire cable: VDE1X0.75mm2  180C 450V  Black, 350mm
2. Epoxy resin G-108:GU-MZ, black
3. Al case housing: Φ3.5×30 + M8×1.25 mm
4. PTC Thermistor Tref=160℃±10℃, Surface temperature max 170℃

Feature Application

Thin rectangular PTC thermistor soldered with insulation cable, potted into threaded Al Housing. Threaded PTC Cartridge heating assembly suitable for pipe, tanks, vessel, container, equipment casings heating application. Threaded hex head design is ideal for tanks, vessel and pipe installation, as well as other industrial application, affords greater resistance to shock and vibration. Typical application such as automotive vehicles carburetor heating, water boiler, etc.

Alternative to Epcos Ordering code: B59151S1160B40

Electrical Specifications

• Rated voltage (RMS) : 12 V
• Maximum operating voltage Vmax: 24 V
• Breakdown voltage at Ta=25°C: >40V
• Resistance @25C  R25 : 10–100 Ω
• PTC Thermistor Surface Temperature: 170C max.
• Inrush current at V = VR:  0.8 – 1.5A
• Insulation voltage: ≥ 500V,  50Hz
• Al case housing shell surface temperature around 125C

More details in https://amwei.com/threaded-al-m8x30mm-12v-160c-ptc-cartridge-heater-assembly/

Reliability Data

PTC thermistor positive resistance vs. temperature R/T characteristic means that electric power consumed is automatically adapted to the ambient thermal conditions. At an ambient temperature significantly lower than Tref, i.e. with good heat transfer, the PTC thermistor has low resistance and consumes a relatively large amount of power. If the ambient temperature is significantly higher than Tref or heat transfer is restricted, the resistance of the PTC thermistor rises rapidly and power consumption is limited to a very low value.

Thanks to self-regulation properties, heating devices based on PTC thermistor technology can generally dispense with control and regulating components as well as with over-temperature protection, PTC thermistor heating elements are used wherever measurement and regulating equipment as well as heating devices must be housed in tight confines. There are no glowing parts, because the maximum surface temperature is limited by the R/T curve.

PTC thermistor heating pellet elements can be designed to be square, rectangular,  disc round, ring or doughnut form, or PTC stone housed in aluminum, stainless steel, silicon casing.