Designation of foreign radioelements. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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Designation of foreign radioelements. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Reference materials

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American JEDEK system
European PRO ELECTRON system
Japanese JIS system

American JEDEK system

1st digit:

1- diode
2 - transistor
3 - thyristor

A number is followed by a letter Nand serial number.

Example: 1N4148, 2N5551

European PRO ELECTRON system

First letter - material code:

A - germanium
B - silicon
С - gallium arsenide
R - cadmium sulfide

Second letter - purpose:

A - low power diode
В- varicap
С- low power, low frequency transistor
D - powerful, low-frequency transistor
Е - tunnel diode
F - low power high frequency transistor
G - several devices in one case
Н - magnet diode
L - powerful high-frequency transistor
М - Hall Sensor
Р - photodiode, phototransistor
Q - Light-emitting diode
R - low-power regulating or switching device
S - low power switching transistor
T - powerful regulating or switching device
U - powerful switching transistor
Х - multiplier diode
У - powerful rectifier diode
Z- zener diode

Example: BC547C, BUZ11, BU508

Japanese JIS system

First element - number:

0- photodiode, phototransistor
1- diode
2- transistor
3- thyristor

Second element- letter S(semiconductor)

Third element - device type:

А - high frequency pnp transistor
B - low frequency pnp transistor
С - high frequency npn transistor
D - low frequency npn transistor
Е - Esaki diode
F - thyristor
G - Gunn diode
Н - unijunction transistor
I - FET with p-channel
К - field effect transistor with n-channel
М - symmetrical thyristor (semistor)
Q - Light-emitting diode
R - rectifier diode
S- low current diode
Т- avalanche diode
V - varicap
Z - zener diode

Fourth element stands for registration number

The Fifth Element - one or two letters - indicates different parameters for one type of device.

Example: 2SA273 (A373), 2SD1555Н(D1555)

Publication: N. Bolshakov, rf.atnn.ru

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