Leak detector accessories

Electron Multiplier for Pfeiffer Adixen ASM Helium Leak Detector A458556 114262S

Electron Multiplier for Pfeiffer Adixen ASM Helium Leak Detector A458556 114262S

This high-quality replacement electron multiplier is designed for Pfeiffer Adixen ASM series helium leak detectors. Fully compatible with OEM part numbers A458556 and 114262S, it features advanced MCP technology and ceramic insulation for superior signal amplification and stability. Proven in over 2000 installations with a lifespan exceeding 1000 working hours, it offers a cost-effective, reliable solution for mass spectrometer chamber maintenance in semiconductor and industrial leak testing applications.

Inquire Now

Product Details

The Electron Multiplier is a critical high-performance replacement component specifically designed for the Pfeiffer Adixen ASM Series helium mass spectrometer leak detectors. As a vital part of the mass spectrometer chamber repair and maintenance, this unit (Part Numbers: A458556 / 114262S) ensures the precise amplification of weak helium ion signals under high vacuum conditions.

This compatible replacement utilizes the same Microchannel Plate (MCP) technology as the original equipment, combined with an ion-bombardment-resistant alloy target and a robust ceramic insulation structure. It effectively reduces baseline drift and enhances leak rate detection accuracy. With dimensions and pin configurations perfectly matching the original parts, it allows for direct installation without any modifications to the mass spectrometer chamber. It is one of the most reliable leak detector accessories available for professional maintenance.

Core Technical Parameters

Brand Compatibility	Pfeiffer Adixen
Part Numbers	A458556 / 114262S
Applicable Models	ASM Series (Full Range) Helium Leak Detectors
Technology	MCP (Microchannel Plate) + Alloy Target
Insulation Material	High-Temperature Technical Ceramics
Continuous Operation	> 1000 Working Hours
Market Proven	Installed on 2000+ Helium Leak Detectors

Product Advantages

High Gain MCP Multiplication: Features a specialized mass spectrometer grade microchannel plate that provides multi-stage amplification of weak helium ions. The measurement linearity remains stable even in low-leakage ranges, meeting the stringent requirements of semiconductor and new energy production lines.
Durable Alloy Target: The target electrode is made of a dedicated conductive alloy resistant to ion sputtering. It maintains its shape and performance under long-term high-voltage ion bombardment, significantly reducing sensitivity decay.
Superior Ceramic Insulation: Key components utilize high-temperature resistant ceramics, ensuring stable insulation in high vacuum environments without leakage or signal anomalies.
Universal ASM Compatibility: Fully replicates the form factor, wiring terminals, and mounting holes of the A458556/114262S. It is a "plug-and-play" solution for the entire ASM series, simplifying the replacement process for leak detector accessories.
Extended Service Life: With a track record of over 2000 units in the field and continuous operation exceeding 1000 hours, its service life often surpasses the standard OEM maintenance cycle, reducing downtime and maintenance costs.

Detailed Component Description

Each unit consists of an integrated assembly featuring the MCP microchannel electron multiplier plate and an ion collection target. The high-density uniform microchannel structure ensures stable ion amplification gain. The one-piece molded ceramic insulation base prevents high-voltage leakage, while the precision-engineered mounting points ensure a 100% match with the original factory standards.

For those performing comprehensive system overhauls, we recommend browsing our other leak detector accessories to ensure all vacuum seals and sensors are in peak condition.

Application Scenarios

Maintenance of mass spectrometer chambers in semiconductor automated leak detection lines.
Repair of leak detection equipment for power batteries and energy storage systems.
Routine maintenance of ultra-high vacuum precision leak detectors in laboratories.
Core component supply for vacuum equipment repair shops and leak detector rental service providers.

Procurement & Support

We maintain a ready stock for immediate global shipping. Every electron multiplier undergoes a full inspection of conductivity, appearance, and dimensions before dispatch to eliminate any defects. Our packaging is anti-static, moisture-proof, and shock-resistant to ensure safe transit. We also provide full technical data and customs documentation for international buyers. When looking for high-quality leak detector accessories, our ASM series spare parts offer the best balance of performance and value.

Recommended Related Parts: Ion source filaments, collectors, exhaust filters, PFPE grease for molecular pumps, and 3G2 sensor kits.

Conclusion：The Electron Multiplier (A458556 / 114262S) is Suitable for semiconductor manufacturing, battery leak testing, and vacuum equipment maintenance professionals. The core advantage is its OEM-standard quality, 1000h+ continuous operation stability, and a proven track record across 2000+ installations, significantly lowering long-term maintenance costs for the Pfeiffer Adixen ASM series.

Tags :