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ENV-03-4

Highly Accelerated Temperature & Humidity Stress Test (HAST) Chamber

Accelerated reliability screening of solid-state devices and components per EIA/JEDEC A110-B. Pressurised cylindrical workspace reaches absorption equilibrium in 24 hours instead of 1000.

110 / 130 degC 85% RH Pressurised cylinder
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HAST Chamber
Overview

Purpose & Application

The ENV-03-4 HAST chamber accelerates moisture-related reliability screening of semiconductors and electronics per EIA/JEDEC test method A110-B. By raising water vapour pressure inside a pressurised cylindrical workspace, moisture penetration becomes orders of magnitude faster than conventional 85 degC / 85% RH testing. Standard test points: 130 degC / 85% RH for 96 hours or 110 degC / 85% RH for 264 hours. Test duration can be calculated from accelerated reliability models.

Standard Models

Available Sizes

ModelWorkspaceStatic LoadShelves
ENV-03-4 Standard50 cm dia x 40 cm length cylindrical, horizontalSpecify3 fixed
ENV-03-4-CBCustom Built cylindrical workspaceSpecifySpecify

Pressurised cylindrical workspace with circular hand-locked door. Horizontal orientation.

Technical Specifications

Key Specifications

Test Temperature
110 degC and 130 degC (per EIA/JEDEC A110-B)
Relative Humidity
85% +/- 5% RH
Vapour Pressure
Up to 33.2 psia (230 kPa)
Workspace
Cylinder 50 cm dia x 40 cm length
Sensors
Pt-100 RTD + electronic pressure sensor (4-20 mA)
Humidity Generation
Electrically-operated pressurised boiler
Door
Circular opening with multiple hand-operated threaded wheels
Power Supply
415 V, 50 Hz, 3-phase
Standard Features

Built-in Capabilities

  • Pressurised cylindrical workspace per EIA/JEDEC A110-B
  • Standard 130 degC / 85% RH and 110 degC / 85% RH test points
  • Two-level pressure / leak-proof feed-through for instrumentation
  • Three fixed shelves for component trays
  • Active outer chamber for thermal insulation
  • Pt-100 + electronic pressure sensor (4-20 mA)
  • %RH control via pressure ratio calculation
  • Multispan or equivalent controller with optional data logger
Safety Systems

Protection & Reliability

  • Pressure safety valve on boiler
  • Over-current relays (OLR) and MCBs
  • Independent over-temperature protection
  • Door interlock during pressurised operation
  • Audio-visual alarm for critical functions
  • Automatic depressurisation on fault
Get a Tailored Quote

Customize Your Requirement

Tell us your testing specifications and our engineers will design a chamber tailored exactly to your application. The interactive customizer walks you through model selection, dimensions, accessories and contact details — and sends your spec straight to our team via WhatsApp. Response within 24 hours.

Customize ENV-03-4 → Quick Chat on WhatsApp
Model & Variant Custom Dimensions Temperature & Humidity Range Port Holes & Accessories Direct WhatsApp Submission