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August 2013

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Subject:
Re: Informal Poll
From:
Greg Munie <[log in to unmask]>
Reply To:
(Designers Council Forum)
Date:
Mon, 5 Aug 2013 15:40:39 +0000
Content-Type:
text/plain
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text/plain (74 lines) 
I have been following this discussion (along with Dieter Bergman) of what are the reference designators for LEDs.

IPC-2612-1 is in the revision process right now. Below is the current list of reference designators in Appendix A of that document.

Are there other items that should be included in the revision, e.g. a standard ref des for LEDs?

Per the current format a two letter ref des would be preferred.

Thanks!

Greg Munie
IPC Director of Design Programs

A separable assembly
AR amplifier
AT attenuator; isolator
B blower, motor
BT battery
C capacitor
CB circuit breaker
CN capacitor network
CP connector adapter, coupling
D or CR diode
D or VR breakdown diode
DC directional coupler
DL delay line
DS display, lamp, light emitting diode
E terminal
F fuse
FD* fiducial
FL filter
G generator, oscillator
GN general network
H hardware
HY circulator, directional coupler
J most fixed of connector pair, jack
K contactor, relay
L coil, inductor, bead, ferrite bead
LS loudspeaker, buzzer
M meter
MG motor-generator
MH* mounting hole
MK microphone
MP mechanical part
P most movable of connector pair, plug
PS power supply
Q transistor
R resistor
RN resistor network
RT thermistor
S switch
T transformer
TB terminal board, terminal strip
TC thermocouple
TP** test point, In-circuit test points
TZ transzorb
U inseparable assembly, IC package
V electron tube
VR voltage regulator
W wire, cable, cable assembly
X socket, fuse holder, lamp holder
Y crystal, magnetostriction oscillator
Z miscellaneous



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