HDSP-0781_08 Datasheet, PDF (6/8 Pages) AVAGO TECHNOLOGIES LIMITED – Glass/Ceramic Numeric and Hexadecimal Displays for Industrial Applications

Mechanical
These displays are hermetically sealed for use in environ-
ments 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 Com-
ponents.
Preconditioning
These displays are 100% pre­conditioned 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 appro-
priate 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
Storage Temperature, Ambient
Operating Temperature, Ambient
Forward Current, Each LED
Reverse Voltage, Each LED
Symbol
Min
T_S
–65
T_A
–55
I_F
V_R
Max
Unit
+125
°C
+100
°C
10
mA
5
V