Conductive Anodic Filament (CAF) Testing


Gen3 Systems introduces the next generation of Conductive Anodic Filament Monitoring equipment used to measure the influences of sub-surface electro-chemical reactions. The AutoCAF2™ is capable to measure up to 256 individual measurement sites under conditions of high humidity and temperature in accordance with IPC-TM-650 Test Method 2.6.25 andIPC-9691 CAF Test Users Guide.

downlode-autocaf2Conductive Anodic Filament (CAF) failure is copper corrosion within a printed board. It is electro-migration of the copper from Anode to Cathode between two conductors of different potential, whereas growth from Cathode to Anode is a dendrite.  The combination of bias-voltage and elevated humidity initiates CAF failures. Electrical failure results when a filament grows between intended electrically isolated nets.  Refer to IPC-9691 for additional information on Conductive Anodic Filament (CAF).

The newest AutoCAF2™ was developed in conjunction with a major CAF research project conducted by the British National Physical Laboratories (NPL).


Gen3 Systems offers custom test racks as accessories for the AutoSIR & AutoCAF.

Key Features

Measurements from all 256 Channels may be taken within <8 seconds

  • Applied Voltage: +1V to 500V
  • Measurement Method: Continuous on all selected channels
  • Measurement Range: 106 Ω to 1014 Ω
  • Measurement Test Intervals: Fully selectable from minimum of 1 minute
  • Future-Proof Design
  • AutoCAF2TM is available with 64, 128 or 256 channel configurations
  • System performs a self-test upon connection
  • Capable of testing to all existing test specifications including: IPC, IEC, JNC and well as end-user specifications

Fully-adaptable with flexible software operating with Windows 7, 8 &10.

Technical Specifications

Number of Channels
64 or 128 or 256 Channels
Measurable Range of Insulation Resistance
106 to 1014 Ω
Internal Bias Voltage
0V; 3.3V; 5V; 10V; ± 50V & ± 100V
External Bias Voltage
1V to 100V
Measurement Method
Continuous on all selected channels
Measurement Test Intervals
Fully selectable from minimum of 1 minute
Measurement Time
256 channels, <8 seconds
Maximum Test Duration
Current Measuring Cable
System Status LED'S
Low Resistance
Temperature & Humidity
Bias Voltage Out-of-Range/Failure
Data Collection
Sampling Time, Elapsed Time,
Resistance, Current, Applied Voltage
Temperature, Humidity
Applicable OS
Windows® 7, 8 & 10
Power Requirement
110V/230V Switchable mains, single phase
Unit Weight
371 Ibs. (10.5 kgs)