Terra Part # 2564-00A
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42021
Desiccator; Static-Safe, Single Wide, Static-Dissipative PVC, 1 Chamber, 18" W x 22.5" D x 13.5" H, 5"H Trays Without Inlays
  • Faraday-design provides complete static safety; conforms to DOD HDBK 263/MIL-SPEC 1686
  • Sealed, nitrogen-purged cabinet ensures low-moisture, low-particle environment
  • Automated humidity control system extends component shelf life
  • Inlay packages easily accommodate adjustable bin sizes
  • Static dissipative PVC construction protects against ESD build-up, particle aggregation
  • Includes terminal block at top rear of cabinet for easy grounding
  • Requires one RB valve and one stainless steel door frame per chamber (order separately)
  • Faraday design shields static-sensitive components against electrostatic discharge (ESD)
  • Plenum chamber ensures uniform distribution of purge gas to minimize backfill when access doors are opened

Chamber Dimensions: 16.25" W x 20.375" D x 12.5" H

Material: Static-Dissipative PVC

Opening Dimensions: 16.125" W x 12.125" H

Configuration: Single Wide

Type: Nitrogen Purged

Number of Chambers: 1

Design: Benchtop

Door Style: Leak Tight

Tray Type: Without Inlays

Tray Height: 5"

Humidity Control: Nitrogen-Purged, Cabinet Level

Number of Trays: 2

Tray Width: 14.75"

Unit of Measure: EA

Marks & Listings: CE, UL, ULC

Electrical Specifications: None

Weight, Product: 105 lb

Dimensions, Product: 18" W x 22.5" D x 13.5" H

Weight, Shipping: 158 lb

Dimensions, Shipping: 24" W x 29" D x 22" H

Package Type: Crate

Buy Accessories
  1. Optional stainless steel door frames extend cabinet's service life. | 2200-30A displayed
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  2. Terra's Automated RB Valve provides safe pressure release and prevents influx of room air | 1600-60B displayed
    $141
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  3. Provides variable gas purge levels to maintain humidity set points | 9500-05 displayed
    $3,363
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  4. Stainless Steel and powder-coated steel stands adjust to fit cabinets, desiccators and cleanroom equipment of any size. | 1609-20 displayed
    $578
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  5. Small 12"H powder-coated steel desiccator stand; optional casters simplify positioning and cleaning
    $590
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  6. Small 4"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $717
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  7. Small 12"H stainless steel desiccator stand; optional casters simplify positioning and cleaning
    $735
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  8. Small (4") locking latch, catcher included. Grid shows one-inch squares. | 1603-80 displayed
    $108
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  9. Stainless steel LiftLatch. Product details may differ. | 1603-67-2 displayed
    $105
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  10. Increases security of desiccators and accommodates most standard padlocks. | 1603-33 displayed
    $46
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  11. Securely holds 2" waffle packs in place. | 1902-03 displayed
    $2
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  12. Stores 16,382 temperature readings and 16,382 relative humidity measurements. | 9500-10 displayed
    $252
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  13. Small nitrogen generator, 20"W x 12"D x 35.5"H, with compact footprint produces up to 99% pure N2 gas | 2700-12B displayed
    $6,685
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  14. FasTrak 24-7 Expediting Service
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  15. UL Listing Declaration for Desiccator and Storage Cabinets
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  16. Qualification Documentation (IQ/OQ) for Terra Universal System
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  17. Equipment Testing
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  18. Optional stainless steel door frames extend cabinet's service life. | 2200-30A displayed
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  19. Installed grounding terminal; location may vary depending on product | 1686-12 displayed
    $160
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  20. Small (4") LiftLatch with Catcher | 1603-84 displayed
    $170
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Desiccator Cabinets with Removable Sliding Trays

  • Desiccators: Features and Design overview
  • Leveling your Desiccator
  • Static-Control Desiccator Cabinets Clear Acrylic Static-Control Desiccator w/ Inlays
  • Desiccator stainless steel Removable Trays Desiccator Removable Stainless Steel Trays
  • plastic_desiccators_1_chamber

Features and Benefits

Static-Safe Desiccators Explained

Static-Safe Desiccator Construction

Even the slightest static discharge can spell disaster for today’s delicate components. Because the dangers of ESD (electrostatic discharge) are amplified in a low humidity environment, Terra strongly urges that you consider these measures as part of your static control program.

Static electricity is an excess or deficiency of electrons on a surface. The total number of deficient or excess electrons determines the charge on that surface. A surface exhibiting an excess of electrons is charged negatively, and an electron-deficient surface is charged positively.

Although static electricity has plagued the semiconductor manufacturing industry ever since the advent of integrated circuitry, its effects pose especially serious problems to today’s miniaturized, sophisticated, and expensive components. These devices can be seriously damaged or destroyed by charges much smaller than a person can typically detect.

How are Electrostatic Charges Generated?

Electrostatic charges are usually generated by friction between and/or separation of two dissimilar materials, at least one of which is a nonconductor or a poor conductor of electricity. The accumulated charge (static) resides on the surface of, rather than within, the charged nonconductive object.

Electrostatic discharge (ESD) occurs when an accumulated charge (which may be present on an operator, the operator’s clothing, or on any other non-conductive object) is discharged through a conductor (which may be part of a wafer, a chip, or a packaged device), and it may occur whenever the electrostatic potential corresponding to accumulated charge is great enough.

Acrylic or Static-Dissipative PVC Shell

Acrylic, the most common plastic used in storage enclosures, is a prolific static generator. The act of cleaning an acrylic desiccator with a cleanroom wiper is enough to generate surface charges that can discharge onto semiconductor components. One way to avoid potentially disastrous static damage is to select Static-Dissipative PVC.

This material not only dissipates static charges safely, but it also eliminates the particle attraction that static charges create. Surfaces stay clean, inside and out, making this material perfect for use in Class 1 cleanrooms.

Because static-dissipative PVC is transparent and highly durable, it can be used in place of acrylic in nearly any application, desiccators included. It features a surface resistivity of approximately 107 ohms per square, placing it in the “dissipative range”. It is completely noncontaminating—with no measurable outgassing—and it resists a wide range of chemicals.

Note: To protect Static-Dissipative PVC surfaces, desiccators made of this material must include stainless steel shields installed at the bottom of each chamber.

Fabricated of clear acrylic or Static-Dissipative PVC, Static-Safe Storage Systems provide full 360-degree viewing of stored components. Solvent-welding and contamination-free materials guarantee a clean environment free of outgassing. Static-Safe desiccator cabinets house from one to four compartments of two different widths (see dimensional chart). Because our desiccator components are standardized, you can easily replace a damaged door.

Stainless Steel Slide-Out Drawers and Runners

The system's 304 stainless steel trays create a Faraday cage that shields stored materials against electro-static discharge (ESD). They can be easily removed and used as handling trays, eliminating the need to touch—and possibly to contaminate—sensitive microelectronic components.

The trays mount easily into the system's runners to become slide-out drawers. Runners feature an easy-glide suspension system that supports up to 40 lbs (18.1 kg). when fully extended and allows full access to every inch of drawer space. Two-drawer compartments provide 5.25" (133 mm) of clearance and include 5”-deep (127mm) trays suitable for 4" (102 mm) waffle packs; three-drawer compartments provide 3.1875" (81 mm) of clearance and are available with 2”-deep or 3”-deep trays, suitable for 2" (51 mm) waffle packs.

Stainless steel inlays, included in Static-Safe desiccators with 2”-deep trays, are slotted every .375” (10 mm) to permit easy insertion of stainless steel dividers (order separately). Inlay packages allow front-to-back storage of up to 192 2-inch waffle packs (with retaining dividers) in small trays, and up to 240 2-inch waffle packs in large trays.

For enhanced static-control, select a Static-Safe Desiccator made of static-dissipative PVC, which dissipates surface charges that can attract and hold particles.

Although the Static-Safe desiccator configuration does not form the closed box that Faraday described, both shield and tray are at the same potential and no electric field can exist within the volume they enclose. This effect can be demonstrated simply by directing an electrical discharge at the opening between the shield and the tray. The discharge never enters the cavity, and any stored materials inside remain completely shielded from the effects of the discharge.

Faraday Cage Design Shields against Eletro-Static Discharge (ESD)

ESD safe desiccator cabinets include ground slide-out trays to create a Faraday cage, shielding sensitive microelectronics in storage from electro-static discharge (ESD).

Automatic Relief/Bleed Valve

Terra's Automatic Relief/Bleed (RB) Valve opens up at 0.01 PSI, relieving overpressure that could damage desiccators; also works as a check valve to prevent influx of room air.

Replacement Stainless Steel Trays

Removable stainless steel trays, included with the desiccator, can be outfitted with stainless steel inlays and dividers (shown here) for space-efficient storage of die (“waffle”) packs.

High Caliber Hardware

Seemingly small details like latches, ports, glides and hinges are often overlooked or ignored by other manufacturers, and later become the point of costly recurring maintenance or equipment failure. Terra’s products are made of long lasting, cleanroom compatible, top tier hardware. Individual components are carefully designed and rigorously tested to guarantee the highest quality, durability, and craftsmanship.

Reinforced Doors with Non-adhesive Gaskets

Stainless steel door frames extend desiccator life; one-piece fused gaskets are non-outgassing, will not creep or sag

Built-in Plenum Distributes Dry Gas to Each Chamber

Manual flowmeter or automated system controls nitrogen flow rates to maintain RH across entire cabinet. Built-in plenum distributes dry gas to each chamber.

Durable Embedded Static-Dissipative Layers

Terra's SDPVC features bonded dissipative layers that resist abrasion. SDPVC desiccators retain their surface resistivity of 106 - 108 ohms/square indefinitely (unlike spray-on coatings that can wear off after a few years), protecting your materials against ESD damage. Further, the control of static charges eliminates particle attractions, helping maintain clean surfaces.

Doors - The First Failure Point of a Desiccator Cabinet

Terra’s stainless steel door frames eliminate the need for internal reinforcements, which create particle surfaces and compromise cleaning. Unlike other doors with glue-on anti-bow pieces, Terra’s doors use no adhesives. This eliminates particle traps, sources of outgassing—and extends the strength and service life of the desiccator.

Desiccator Plenum Chamber For Uniform Gas Distribution

Multi-chamber desiccator cabinets include a perforated plenum to minimize back fill, ensure uniform gas distribution to all chambers and increase cabinet strength

Highest Standards For Desiccators and Electronic Components

Terra’s desiccator cabinets and RH control systems are designed and built to the highest standards required by defense and semiconductor industries for long-term reliability and protection against damage, injuries, and electrical hazards.

Continuous Product Improvement

At Terra, we strive to develop and produce the highest quality products for our customers to improve health, safety, performance, and yields. Our product quality is enabled by high-grade manufacturing equipment and processes, 45 years of engineering and application expertise, and our commitment to continuously improve.

Long-Term Customers

Terra is committed to building long-term relationships with satisfied clients; 94% of orders each year come from repeat customers

Catalog of CE-Marked Products

Terra offers over 1,700 CE-marked products configured for international voltage requirements
Popular Accessories
For a full list of accessories, select a product then click Choose Accessories on that product page.
  • Universal Adjustable Equipment Base Stands

    Stainless steel or powder-coated steel, cleanroom-compliant stands easily adjust to fit industry-standard cabinets, desiccators, vacuum chambers, refrigerators, incubators and ovens. Raises equipment to ergonomic height to support disinfection and sample monitoring.
  • Relative Humidity and Temperature Data Logger

    Simply plug the USB-502 logger into any USB port on your PC to name the logger, set your start time and date, sample rate, units (ºC or ºF), and hi/lo alarms—then place in controlled atmospher chamber to start logging data.
  • Stainless Steel Divider for Desiccator Storage System, 4.5W

    Stainless steel desiccator Tray Dividers with labeling edges allow secure, organized storage of die packs and other small parts.
  • Stainless Steel Inlays

    Stainless steel inlays (included) with slots every .375” (10mm) to permit easy insertion of dividers, creating storage bins for standard die (“waffle”) packs.
  • Laboratory Nitrogen Generator

    Terra’s Nitrogen Generators provide a continuous, reliable supply of clean, dry nitrogen up to 99% pure to eliminate dependence on bulky canisters to operate desiccators and glove boxes.
  • Desiccator Cabinet Ionizing Module

    Ionizing modules are available for desiccator cabinets, glove boxes and other enclosures to ensure static-safe storage and processing (shown: ionizing unit on 2-chamber desiccator)
  • Dual Purge™ and NitroWatch™ Work Together to Fully Automate RH Control

    Terra's Dual Purge™ and NitroWatch™ operate in tandem to precisely and automatically control the flow of nitrogen and maintain a preset humidity level (from ambient to 0% ± 1.5% RH), no matter how operating conditions may change.
  • Data Logging with 113,000 Readings at User Defined Intervals

    Terra's Smart® IsoDry® Nitro-Watch™ logs RH, temp, door open/close, purge on/off, and sensor removal/attachment. The max data file size is roughly 4 MB or 113,000 readings. This is approximately 32 hours of data when logging at 1 second intervals, 2 weeks at 10 second intervals, 6 weeks at 30 second intervals, or 12 weeks at 1 minute intervals. When the system reaches the 4MB limit, data begins to wrap, overwriting oldest data with new.
  • Plug & Play Data Logging

    Plug in a USB flash drive to your Smart® IsoDry® Nitro-Watch™ to transfer data in .CSV format. No software required.

On a tight schedule? Choose FasTrak 24/7 Priority Service to help meet your critical schedule for Terra-manufactured products, either before or after your order is placed.*

  • FasTrak 24/7 provides a 24/7 commitment to meet the shipping date YOU specify, regardless of quoted lead times.
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Call for pricing. FasTrak service fees cover costs of additional services only, without additional profit.

 * Terra's FasTrak services limited guarantee: to ship on the ESD or date specified OR to refund up to 100% of FasTrak charges. This guarantee covers no direct, special, consequential or other damages and is strictly limited to up to 100% of the amount paid for FasTrak service. When a specified ship date is missed due to factors outside Terra's control (vendor performance, deliveries by shipping companies, etc.) and random factors such as accidents, the credit of up to 100% of the FasTrak 24/7 may not apply. FasTrak service requested after order placement will be quoted and accepted based on available time remaining before required ship date.

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