Ceramic igniter 48516-00005-3498

gasfor burners

Product overview
Silicon nitride (Si3N4) ceramic igniter: a high-temperature electrical heating element manufactured by advanced ceramic sintering. Designed for rapid, repeatable ignition in gas-fired equipment and for use as a startup heater in specialized systems. Typical applications include domestic and commercial gas water heaters, gas grills, gas space heaters, wall-mounted boilers, commercial cookers, industrial combustion systems, automotive heating elements and aerospace or fuel-cell start-up heaters.

Key features

• High-performance Si3N4 ceramic heating core with integrated heating circuit produced by advanced sintering.
• Rapid heating: reaches temperatures above 1000°C in approximately 2 seconds.
• Improved thermal shock resistance and fracture toughness (significantly higher than silicon carbide).
• High temperature capability: material resistance referenced up to ~1350°C; dry-point heating performance up to ~1000°C.
• High surface load: dry heating up to 25 W/cm².
• Compact dimensions and low thermal inertia for fast response and long service life under cyclic operation.
• Chemical resistance to acids and alkalis; stable electrical performance under frequent temperature cycling.
• Available in multiple power and voltage variants to match equipment requirements.

General specifications (product-level)
Formula: Si3N4
Form: Plate
CAS Number: 12033-89-5
Commodity: Silicon nitride heater

Dimensions & tolerances
Length: 100 ±0.1 mm
Width: 17 ±0.1 mm
Thickness: 3.9 ±0.1 mm

Physical Properties
Apparent porosity: 0.5%
Density: ≥ 3.2 g/cm³

Thermal Properties
Coefficient of thermal expansion: 3.3 ×10⁻⁶/°C
Maximum recommended use temperature in air: 800°C (dry heating and short-term material resistance referenced to higher temperatures up to ~1000–1350°C depending on operating conditions)

Mechanical Properties
Vickers hardness (HV1): 1400–1700
Poisson's ratio: 0.26

Technical specifications

• Nominal dimensions: 100 × 17 × 3.9 mm (tolerance ±0.1 mm)
• Available power ratings: 280 W, 400 W, 450 W, 480 W
• Rated voltages: 120 V, 220 V, 230 V
• Rated frequency: 50/60 Hz
• Heating performance: >1000°C in ~2 s (rapid ignition)
• Material: silicon nitride (Si3N4)
• Insulation dielectric strength: 2500 V, 50 Hz, 1 minute without breakdown
• Dry heating surface load capability: up to 25 W/cm²
• Apparent porosity: 0.5%; Density: ≥ 3.2 g/cm³
• Hardness (HV1): 1400–1700; Poisson's ratio: 0.26
• Typical applications: gas water heaters, grills, heaters, wall-mounted boilers, commercial cookers, industrial combustion equipment, automotive/aerospace heating, SOFC start-up heaters