HDSP-0781 Datasheet, PDF (6/9 Pages) AVAGO TECHNOLOGIES LIMITED – Glass/Ceramic Numeric and Hexadecimal Displays for Industrial Applications

Mechanical
These displays are hermetically
sealed for use in environments
that require a high reliability
device. These displays are
designed and tested to meet a
helium leak rate of
5 x 10^-8 cc/sec.
These displays may be mounted
by soldering directly to a printed
circuit board or insertion into a
socket. The lead-to-lead pin
spacing is 2.54 mm (0.100 inch)
and the lead row spacing is
15.24 mm (0.600 inch). These
displays may be end stacked
with 2.54 mm (0.100 inch)
spacing between outside pins of
adjacent displays. Sockets such
as Augat 324-AG2D (3 digits) or
Augat 508-AG8D (one digit, right
angle mounting) may be used.
The primary thermal path for
power dissipation is through the
device leads. Therefore, to
insure reliable operation up to
an ambient temperature of
+100°C, it is important to
maintain a base-to-ambient
thermal resistance of less than
35°C watt/device as measured
on top of display pin 3.
For further information on
soldering and post solder
cleaning, see Application Note
1027, Soldering LED
Components.
Preconditioning
These displays are 100% pre-
conditioned by 24 hour storage
at 125° C, at 100° C for the
HDSP-098x Series.
Contrast Enhancement
These display devices are
designed to provide an optimum
ON/OFF contrast when placed
behind an appropriate contrast
enhancement filter. For further
information on contrast
enhancement, see Application
Note 1015, Contrast
Enhancement for LED Displays.
Over Range Display
The over range devices display
“±1” and decimal point. The
character height and package
configuration are the same as
the numeric and hexadecimal
devices. Character selection is
obtained via external switching
transistors and current limiting
resistors.
Absolute Maximum Ratings
Description
Symbol Min
Storage Temperature, Ambient
T_S
–65
Operating Temperature, Ambient T_A
–55
Forward Current, Each LED
I_F
Reverse Voltage, Each LED
V_R
Max
Unit
+125 °C
+100 °C
10
mA
5
V
6