Tungsten P7 3-Wire 0.030 in Point Source Filament ATOMFAIR®

Tungsten Point Source Filament, P7 Geometry, 3 Wires x 0.030 in Diameter

Product Type: Thermal filament point source

Research-grade laboratory product

Product Overview

Tungsten Point Source Filament, P7 Geometry, 3 Wires x 0.030 in Diameter is a tungsten thermal evaporation filament specified for 1800 °C operation, 2.78 V drive voltage, 69 A current and 192 W power. The 3 Wires x 0.030 in Diameter construction and 5 pcs/package and 10 pcs/package; 5 in L x 1-1/2 in format support selection for vacuum deposition source assemblies that require a defined tungsten filament geometry.

The item is intended for thermal filament evaporation workflows where wire count, wire diameter, source geometry and electrical loading must be matched before purchase. Use the listed geometry reference and electrical values to confirm fit with the evaporation source holder and power supply configuration.

Performance Features

Tungsten filament construction with 3 Wires x 0.030 in Diameter geometry for thermal evaporation source use.
Electrical specification of 2.78 V, 69 A and 192 W supports source matching during procurement review.
Rated operating temperature of 1800 °C provides a defined reference point for thermal evaporation configuration selection.

Technical Specifications

Parameter	Specification / Available Values
Atomfair Model	AF-PSP7-3W030
Product Family	Tungsten Point Source Filament
Reference Geometry	P7
Wire Specification	3 Wires x 0.030 in Diameter
Voltage	2.78 V
Current	69 A
Power	192 W
Operating Temperature	1800 °C
Package and Geometry	5 pcs/package and 10 pcs/package; 5 in L x 1-1/2 in

Selection and Use Notes

Confirm the filament geometry reference P7, holder fit and required package quantity before quotation.
Match voltage, current and power requirements to the evaporation power supply and source assembly used in the deposition system.

LABORATORY PROCUREMENT SUPPORT

For model selection, accessory matching, platform compatibility or configuration confirmation, contact our technical sales team.

E-MAIL: inquiry@atomfair.com

Manufacturer: Atomfair LLC

Brand: ATOMFAIR®

Ensure the P7 geometry and electrical specifications match the evaporation source holder and power supply. Operate only in high-vacuum environments and at or below the rated 1800 °C temperature.

Geometry Verification: Confirm the P7 filament geometry matches the holder dimensions before installation.
Electrical Compatibility: Verify that the drive voltage (2.78 V), current (69 A), and power (192 W) are within the power supply's operating range.
Package Selection: Select the package quantity (5 or 10 pieces) based on the required number of filaments for the deposition cycle.
Operating Environment: Use the filament only in high-vacuum deposition systems to prevent oxidation and ensure proper evaporation.

FAQ

What is the significance of the P7 geometry and 3-wire 0.030 in diameter construction for thermal evaporation performance?

The P7 geometry and 3-wire 0.030 in diameter construction define a specific source geometry for uniform thermal evaporation. The electrical specification of 2.78 V, 69 A, and 192 W at 1800 °C allows precise matching to the power supply. The wire count and diameter influence the filament resistance and heating profile, which are critical for consistent deposition rates.

How do I verify compatibility of this tungsten point source filament with my existing evaporation source holder and power supply?

Verify that the filament's P7 geometry reference matches your holder's fit. The filament dimensions are 5 in L x 1-1/2 in. Ensure your power supply can deliver 2.78 V, 69 A, and 192 W at the rated 1800 °C operating temperature. Use the listed electrical values for procurement review and consult technical sales if needed.

What factors should be considered when selecting the package quantity (5 vs. 10 pieces) for this tungsten point source filament?

The package quantity should be chosen based on your expected filament replacement frequency in vacuum deposition runs. Both packages contain identical filaments with the same P7 geometry, wire specification, and electrical ratings. Consider your deposition cycle count and inventory management to ensure uninterrupted operation.

Assessment

This tungsten point source filament with P7 geometry and 3 wires of 0.030 in diameter is specified for 1800°C operation at 2.78V, 69A, and 192W, making it suitable for thermal evaporation workflows requiring precise electrical and geometric matching.

Positive

Defined electrical specifications: Explicit voltage (2.78 V), current (69 A), and power (192 W) ratings enable direct compatibility verification with the evaporation power supply and source assembly during procurement.
Rated 1800°C operating temperature: The specified maximum operating temperature provides a clear thermal reference for configuring evaporation parameters and assessing material compatibility in vacuum deposition processes.

Trade-offs

Requires geometry and holder fit confirmation: The P7 geometry reference and 5 in L x 1-1/2 in format must be matched to the specific evaporation source holder; incorrect fit can prevent installation or cause electrical mismatch.
Electrical loading must be pre-matched: The filament's voltage, current, and power requirements must be verified against the power supply's output capabilities before purchase to avoid underperformance or damage.

Quality Standards & Performance Verification

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.

Shipping & Returns

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).