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Tungsten Point Source Filament, P7 Geometry, 4 Wires x 0.030 in Diameter
Product Type: Thermal filament point source
Research-grade laboratory product
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LABORATORY PROCUREMENT SUPPORT
For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.
E-MAIL: inquiry@atomfair.com
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Manufacturer: Atomfair LLC
Brand: ATOMFAIR®
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Operate the filament at 2.42 V, 87 A, and 211 W to prevent thermal damage. The maximum rated temperature is 1800 °C and the filament must be used within a vacuum deposition system.
- Electrical Limits: Exceeding the specified voltage, current, or power will cause the filament to overheat and fail.
- Thermal Limit: The filament must not be operated above 1800 °C to avoid melting or structural degradation.
Follow these steps to correctly install the filament in a vacuum deposition system. Proper matching of geometry and electrical parameters ensures safe operation.
Required Equipment: Evaporation source holder, Power supply rated for 2.42 V, 87 A
- Confirm geometry and fit
Confirm the filament geometry reference P7 and holder fit with the evaporation source assembly. - Match electrical specifications
Match the voltage, current, and power requirements to the power supply and source assembly configuration. - Select package quantity
Select the required package quantity (5 or 10 pcs) based on the number of filaments needed for the deposition run.
What is the significance of the 4-wire × 0.030 in diameter construction for thermal evaporation performance?
The 4-wire × 0.030 in diameter geometry directly determines the filament's electrical resistance and thermal mass, which in turn sets the operating voltage (2.42 V), current (87 A), and power (211 W) required to reach the rated 1800 °C. This wire configuration is designed to provide a stable, localized point source for vacuum deposition, balancing evaporation rate and uniformity for thin-film processes.
How do I verify that the P7 geometry filament will fit my existing evaporation source holder?
Confirm fit by matching the filament's P7 geometry reference and its physical dimensions of 5 in L × 1-1/2 in to the source holder's mounting slots and clearance envelope. The product is supplied as a single filament per package (with package size options of 5 or 10 pieces), so you must also verify that the holder accepts the 4-wire × 0.030 in diameter lead configuration before ordering.
What electrical and thermal infrastructure is required to operate this tungsten filament at 1800 °C?
The filament requires a power supply capable of delivering at least 2.42 V at 87 A (211 W) to sustain the rated 1800 °C operating temperature. The deposition system must also include a vacuum environment and a source assembly that can handle the thermal load and mechanical mounting of the P7 geometry filament. Always match the voltage, current, and power specifications to your existing power supply before installation.
This tungsten point source filament with P7 geometry and 4 wires of 0.030 in diameter is specified for 1800°C operation at 2.42 V, 87 A, and 211 W, requiring careful matching to the evaporation power supply and source holder.
Positive
- Tungsten filament with defined geometry: The 4-wire, 0.030 in diameter construction in P7 geometry is explicitly specified for thermal evaporation source use, enabling direct matching to deposition system requirements.
- Rated 1800°C with electrical parameters: The 1800°C operating temperature, 2.42 V, 87 A, and 211 W specifications provide a defined reference point for power supply and source assembly configuration during procurement.
Trade-offs
- Precise electrical matching required: Voltage, current, and power must be matched to the evaporation power supply and source assembly before purchase; incorrect matching risks operational failure or damage.
- Geometry compatibility verification needed: The P7 geometry and 4-wire configuration require confirmation of fit with the evaporation source holder; physical compatibility is not universal and must be verified per system.
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).
