6300331-01  Blank Test Head  •  Electrode sets can be exchanged
for different size blanks  •  Crystal blank is placed in the
bottom plate of the fixture  •  Fixtures available for raw and plated
blanks (raw blank fixture shown)  •  The weighted top portion of the fixture
makes contact with the blank itself and
the measurement fixture, completing
the circuit  •  Raw blank fixtures require 50 Ohm  
Pi network  •  Plated blank fixtures require 12.5 Ohm
Pi network

 S&A  CRYSTAL TEST FIXTURES  (for leaded, SMD, and crystal blank applications)  •  Measurement heads for surface
mount devices contain a removable
part adapter  •  SMDs are placed in part adapter
and held against two contacts by
a spring loaded arm that swings
over the part and holds it in place  •  SMD part adapters are available in
different sized sockets to
accommodate surface mount
devices of varying sizes, including
3.2x5 mm, 3.5x6 mm, 5x7 mm,
HC-49SMD, and custom packages  SMD Test Head  Leaded Device Test Head  •  Measurement heads for leaded
devices contain a simple test socket  •  Crystal leads fit into separate
contact ports  •  PI Network test fixtures conform to
IEC-444 standards.  •  Available fixture impedance includes
12.5 Ohms, 50 Ohms, and 750 Ohms  •   A proprietary 150K Ohm test head is
available for all crystals in the 15 KHz
to 400 KHz range