PIL 50-120 Series SPDT Shield Reed Relay Card

The PIL 50-120 Series SPDT Shield Reed Relay Card is part of the 50-110/115/120/125 PCI General-Purpose Reed Relay Card family. The card integrates 32 independent, shielded SPDT reed relays with sputtered ruthenium contacts and is specifically designed for low-level signal switching applications requiring high bandwidth, low crosstalk, and high isolation.

The card connects via a 200-pin female LFH connector on the front panel, supports the standard PCI bus interface (short form factor), and requires only a single +5V power supply. All relays are manufactured by Pickering Electronics, a sister company of Pickering.

Note:

50-120-021 has been marked as having a replacement available; the recommended replacement model is 50-110B-021 (32×SPDT unshielded reed relay card). The two models are pin-compatible and share the same software driver.

MXTD Supplier

For over 10 years, Xi'an Mingxi Taida Information Technology Co., Ltd. (MXTD) has stood at the forefront of technical excellence, creating tailored solutions that drive industrial efficiency. Our integrated business approach harmonizes precision product R&D, cross-border commerce, and dedicated customer engineering services to support your entire asset lifecycle. Backed by extensive manufacturing expertise, we engineer ruggedized hardware portfolios built to maintain peak stability in critical, heavy-duty applications.

Our core operational strengths include:

• Extensive Global Network: We manage a robust international supply and distribution infrastructure, consistently delivering high-performance gear to clients across North America, South America, Europe, and Africa.
• Streamlined Technology Procurement: We optimize your sourcing workflows by merging our own custom-developed technical assets with the authorized distribution of premier, world-recognized instrumentation brands.
• Exhaustive Quality Controls: Every instrument and module undergoes automated benchmarking, environmental stress-testing, and strict quality assurance validation before shipment.

Advantages- PIL 50-120 Series SPDT Shield Reed Relay Card

Shielded vs. Unshielded Comparison- PIL 50-120 Series

Compared to the 50-110 (unshielded SPDT) in the same series, the 50-120’s shielded design offers:

Product Series

Basic switching functions- PIL 50-120 Series

The 50-120-021 provides 32 independent SPDT (Form C) shielded reed relay channels, each with three terminals:

• C (Common): Common signal terminal
• A (Normally Open): After the relay is energized, C is connected to A
• B (Normally Closed): Default state (unenergized), C is connected to B

Default state: All signal paths are between terminal C and the corresponding terminal B. After energizing a relay, the path to terminal B is broken, creating a signal path between terminals C and A.

Environment- PIL 50-120 Series SPDT Shield Reed Relay Card

Security and Certification

Customization Services

We understand that conventional, pre-packaged hardware rarely meets the complex criteria of unique engineering applications. To eliminate these operational bottlenecks, our highly skilled technical division provides end-to-end, made-to-order OEM and ODM services custom-tailored to your exact project specifications. Whether modifying delicate signal spectrum parameters, integrating specialized triggering sequences, or drafting unique physical enclosures, we work alongside you as an open partner to transform concepts into deployable, high-performance machinery.

Our design framework focuses on three operational benefits:

• Tailored System Alignment: Each hardware alteration is meticulously validated against your specific operational, structural, and electrical environments.
• Accelerated Prototype Iteration: Our flexible engineering methodology compresses development timelines, keeping you ahead of market demands while remaining responsive to design modifications.
• Consistent Benchmarking Rigor: Custom builds undergo the same thorough automated diagnostics and reliability screening as our flagship product lines.

By balancing design flexibility with demanding stress-tests, we deliver application-specific instruments that integrate instantly into your existing processes while maintaining maximum safety and performance.

Applications:

• Suitable for automated test equipment (ATE), data acquisition systems, and low-level signal routing
• Ideal for precision measurement applications requiring shielding to prevent crosstalk between channels
• Shares the same architectural design as the PXI 40-120 series cards, ensuring platform compatibility

FAQ:

Q: Why is there still significant interchannel crosstalk or noise pickup in high-frequency testing (or weak signal testing) after selecting the 50-120 shielded series?

A:  

While the 50-120 features internal metal shielding for the relay itself, its advantages are completely negated if the shielding of external interfaces and cables is neglected during system integration.

Check the grounding of external cable shielding: The 50-120 outputs signals via a 200-pin large LFH connector on the front panel. Pickering's officially customized shielded cable assemblies must be used.

Isolate inductive interference: If the twisted-pair shielded cable from the front panel is routed alongside high-current AC power lines, high-frequency noise can penetrate the cable through capacitive coupling. Strictly separate cable trays should be used for wiring.

Contact Us

Ready to integrate reliable Shield Relay Board control into your system? Our team is here to help you select the right configuration and provide ongoing support.

Contact our technical specialists at manager03@mxtdinfo.com  / manager02@mxtdinfo.com for detailed specifications, pricing information, or to discuss your custom requirements. We're committed to delivering the perfect PIL 50-120 Series SPDT Shield Reed Relay Card solution for your application needs.