The ultimate SMD marking codes database

Due to the small size of most SMD components, manufacturers are not able to write the full part number on the case. They use instead a marking code typically composed of a combination of 2 or 3 letters or digits. When repairing an unknown electronic board, it becomes so difficult to know what is the exact type of a given component. This database allows to quickly find the part number of a SMD component when you have only the marking code.

Showing codes starting with 'YQ'

Marking
Name
Manufacturer/Case
Function
YQ
2PA1774Q
Philips
SOT-416
PNP transistor
LN, 50V, 100mA, 150mW, >100MHz, B=120..270
YQ
2PA1774QJ
Philips
SOT-490
PNP transistor
LN, 50V, 100mA, 250mW, >100MHz, B=120..270
YQ
2PD601Q
Philips
SOT-23
NPN transistor
GP, Sw, 60V, 100mA, 250mW, B=160..260, >100MHz
YQ
2SB1115A-Q
NEC Electronics
SOT-89
PNP transistor
AF-Amp, Sw, 80V, 1A, 2W, 120MHz, B=135..270
YQ
2SD1484K-Q
Rohm
SOT-346
NPN transistor
AF-Drv, 50V, 500mA, 200mW, B=120..270, >250MHz
YQ
2SD1949-Q
Rohm
SOT-323
NPN transistor
AF, 50V, 500mA, 200mW, B=120..270, >250MHz
YQ
2SD1949K-Q
Rohm
SOT-323
NPN transistor
AF-Drv, 50V, 500mA, 200mW, B=120..270, >250MHz
YQ
2SD2216-Q
Panasonic
SOT-416
NPN transistor
GP, 60V, 200mA, 125mW, 150MHz, B=160..260
YQ
2SD601-Q
Panasonic
SC-59
NPN transistor
GP, AF, 50V, 600mA, B=160..260, 150MHz
YQ
2SD874A-Q
Panasonic
SOT-89
NPN transistor
GP, AF, 60V, 1A, 1W, B=85..170, 200MHz
YQ
30C01C
Sanyo Electric
CP
NPN transistor
AF, GP, 40V, 400mA, 300mW, B=300..600, 380MHz
YQ
30C01M
Sanyo Electric
MCP
NPN transistor
AF, GP, 40V, 400mA, 300mW, B=300..600, 380MHz
YQ
30C01S
Sanyo Electric
SMCP
NPN transistor
AF, GP, 40V, 400mA, 200mW, B=300..600, 380MHz
YQ
30C01SS
Sanyo Electric
SSFP
NPN transistor
AF, GP, 40V, 400mA, 200mW, B=300..600, 380MHz
YQ
BU4223F
Rohm
SOP-4
Voltage detector IC
2.3V±1%, -Reset ODO
YQ
BU4223FWE
Rohm
VSOF-5
Voltage detector IC
2.3V±1%, -Reset ODO
YQ
BU4223G
Rohm
SSOP-5
Voltage detector IC
2.3V±1%, -Reset ODO
YQ
BZX284-C3V0
Philips
SOD-110
Zener diode
3V±5%, If=250mA, 400mW
YQ
DDZ7V5C
Diodes
SOD-123
Zener diode
7.5V±5%, Izt=20mA, 500mW
YQ
DDZ7V5CS
Diodes
SOD-323
Zener diode
7.5V±5%, Izt=20mA, 200mW
YQ
DDZX7V5C
Diodes
SOT-23
Zener diode
7.5V±2.5%, If=10mA, 500mW
YQ
DDZX7V5CTS
Diodes
SOT-363
Zener diode
Triple, 7.5V±2.5%, If=10mA, 200mW
YQ
P4SMAJ40C
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=40V, 5.6A, 400W (1ms), Bidir.
YQ
R1210N342D
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 3.4V, 180kHz, +CE, ext. transistor
YQ
R5325N024A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/3V±1%, 150mA, +CE
YQ
RN2114
Toshiba
SOT-416
PNP transistor
Sw, 50V, 100mA, 100mW, R1/R2=1k/10k
YQ
RN2114FV
Toshiba
SOT-723
PNP transistor
Sw, 50V, 100mA, 150mW, R1/R2=1k/10k
YQ
RN2314
Toshiba
SOT-346
PNP transistor
Sw, 50V, 100mA, 400mW, R1/R2=1k/10k
YQ
RN2414
Toshiba
SOT-346
PNP transistor
Sw, 50V, 100mA, 400mW, R1/R2=1k/10k
YQ
RN5RK472A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, Vout=4.7V±1.5%
YQ
RP201K221D
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 2.2V±1%, 150mA, +CE, CL, AE(Mode)
YQ
SMAJ40C
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=40V, Vbr=44.4..54.3V, 5.6A, 400W(1ms), Bidir.
YQ
TV04A400KB-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=40.0V, Vbr=44.40..54.30V, Ipp=5.60A, 400W(1ms), Bidir.
YQB
2SA1867-B
Hitachi
SOT-23
PNP transistor
GP, AF, 20V, 500mA, 100mW, B=60..120
YQC
2SA1867-C
Hitachi
SOT-23
PNP transistor
GP, AF, 20V, 500mA, 100mW, B=100..200
YQD
2SA1867-D
Hitachi
SOT-23
PNP transistor
GP, AF, 20V, 500mA, 100mW, B=120..240