TM
8-A278 and 8-278N Lamps
T-3/4 Bi-Pin Lamps with Frosted Bulb
Product Specifications
.094
(2.39)
DIA. MAX.
Materials
Base Color
White
Frosted Glass (Acid ETCH)
.05
(1.27) LCL
Bulb Finish
.250 - .270
(6.35 - 6.86)
.100 - .120
(2.54 - 3.05)
Temperature Specifications
Operating
Temperature
Storage
Temperature
-65
o
C to +100
o
C
-85
o
F to +212
o
F
-65
o
C to +100
o
C
-85
o
F to +212
o
F
.019 - .021
(.483 - .533)
DIA. TYPE
.220 - .250
(5.59 - 6.35)
.025 ± .002
(.635 ± .051)
AT EGRESS
.050
(1.27)
NOM.
ELECTRICAL CHARACTERISTICS
PART
NUMBER
8-A278
8-A278N
Voltage
(V)
5.0
5.0
Current
(A)
.020 ± .002
.020 ± .002
MSCP
NOM.
.034 ± .005
.034 ± .005
LIFE
HOURS
(AVG.)
3,000
3,000
FILAMENT
SHAPE
C-2R
C-2R
LAMP
LEADS
GOLD
PLATED
NICKEL
PLATED
Dimensions in inches [mm]
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03/17 Rev 1
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