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Alumina Coated Tungsten Basket Heater, 0.040 in DIA x 0.350 in ID, 4 in L x 0.500 in H x 0.375 in TID, 0.350 in INSIDE DEPTH, 0.040 in DIA WIRE
Product Type: Alumina Coated Tungsten Basket Heater
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, basket geometry matching and configuration confirmation, contact our technical sales team.
INQUIRY: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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This document describes the electrical, thermal, and mechanical constraints for the safe operation of the alumina coated tungsten basket heater. Compliance with these constraints is required to prevent equipment damage or personal injury.
- Electrical Rating Constraint: The basket heater must be connected to a power supply that delivers 6.2 V at 40 A (248 W) to avoid overheating or failure.
- Maximum Temperature Constraint: The heater must not be operated above 1475 °C to prevent tungsten embrittlement and alumina coating degradation.
- Physical Fit Constraint: The basket geometry must match the source holder dimensions (0.350 in inside depth, 0.040 in wire diameter) to ensure proper electrical contact and thermal performance.
What voltage and current are required to operate the alumina coated tungsten basket heater to its maximum temperature of 1475 °C?
The heater is rated at 6.2 V, 40 A, and 248 W to reach 1475 °C. This electrical loading must be matched by the power supply for safe operation.
How do I verify that this basket heater will fit my existing vacuum evaporation source holder?
The heater has dimensions of 4 in L x 0.500 in H x 0.375 in TID (top inside diameter), 0.350 in inside depth, and uses 0.040 in diameter wire. The basket ID is 0.350 in. These dimensions should be compared against the holder's cavity and clamping mechanism to confirm fit.
This 1475°C-rated alumina-coated tungsten basket heater (0.040 in DIA wire, 0.350 in ID) is evaluated for vacuum evaporation source heating, with a 6.2 V / 40 A / 248 W electrical loading that must be matched to the deposition power supply and source-holder geometry for safe operation.
Positive
- High-temperature evaporation capability: Rated for continuous operation at 1475°C, enabling thermal evaporation of high-melting-point materials under vacuum without sagging or contamination, provided power supply limits are respected.
- Alumina-coated oxidation barrier: The alumina coating protects the tungsten wire from oxidation during air exposure and reduces vapor-phase reactions, extending basket lifespan in oxygen-sensitive evaporation processes.
Trade-offs
- Precise power-supply matching required: The basket requires a 6.2 V, 40 A, 248 W supply; any deviation may cause underheating or risk of tungsten embrittlement from thermal shock, necessitating a stable, match-rated power source.
- Mechanical fragility of coated wire: The 0.040 in diameter tungsten wire, although alumina-coated, is thin and can fracture if mechanically stressed during insertion, removal, or thermal cycling; handling and alignment in the vacuum chamber must be done with care.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
