Type

Symbol (ANSI/IEE)

Amplifier

AR

Capacitor

C

Connector

J or P

Crystal

Y

Delay Line

DL

Diode

D

LED

DS

Fuse

F

Header

J or P

Inductor/Choke

L

Integrated Circuit

U

Insulated Jumper

W,P

Jumper

W,P or P

LED

DS

Oscillator

Y (crystal) or G (other)

Relay

R

Resistor

R

Voltage Rectifier

D or CR

Socket

X,XAR,XU,XQ etc.

Switch

S

Test Point or Pin

TP

Transformer

T

Voltage Regulator

VR

Zener Diode

D or VR