Ring 28 Heating Element

Item

Test Condition

Unit

Performance

Test Method

Size

mm

Φ28±1*17±1*2.0±0.1

Color State

White, Dense

Substrate Material

≥96% Alumina Ceramic

Density

g/cm³

＞3.7

GB/T 2413-1980

Warpage

mm

＜0.2mm

Lead Pull Strength

Kg

Horizontal Pull ≥5；Vertical Pull ≥3

SJ/Z 9001.33-1987

Bending Strength

MPa

＞300

GB/T4741-1999

Thermal Conductivity

25±1℃

W/(m.K)

≥20

Withstand Voltage Strength

25±1℃, 110V.1800V/10SEC;
220V.3700V/1SEC

Leakage Current ＜0.62mA

Insulation Resistance

DC500V

MΩ

＞100

GBT/T 10064-2006

Resistance

25±1℃

Ω

According to customer requirements range
±10%

Cycle Test

Under rated voltage and operating temperature conditions: generally ≤280℃, on60min off60min

Cycle1000 times without damage

Power-On Test

Under rated voltage, directly powered in air for 20 seconds; surface temperature between 600℃-750℃

No damage

High Temperature Endurance Test

Ceramic heating element at maximum temperature conditions; generally 500-700℃, continuous power-on.

Greater than24 hours