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 'EM'

Marking
Name
Manufacturer/Case
Function
EM
2SB1028-M
Renessas
SOT-89
PNP transistor
AF, 180V, 1.5A, 1W, B=100..200, >100MHz
EM
2SD1001-M
NEC Electronics
SOT-89
NPN transistor
AF-Amp, 80V, 300mA, 2W, 140MHz, B=90..180
EM
2SJ501
Sanyo Electric
SOT-23
MOSFET p-type
Sw, U-Speed, LogL, 20V, 500mA, 250mW, 10/30ns, <1(50mA)
EM
AP1704DTW
Anachip
TSOT-23-3L
Voltage detector IC
3.08V±1.5%, +Reset PPO
EM
AP1704DW
Anachip
SOT-23-3L
Voltage detector IC
3.08V±1.5%, +Reset PPO
EM
BD4851FVE
Rohm
VSOF-5
Voltage detector IC
5.1V±1%, -Reset ODO
EM
BD4851G
Rohm
SSOP-5
Voltage detector IC
5.1V±1%, -Reset ODO
Em
BD49E50G
Rohm
SSOP-5
Voltage detector IC
5.0V±1%, -Reset PPO
Em
BD49K50G
Rohm
SSOP-3
Voltage detector IC
5.0V±1%, -Reset PPO
eM
BU46K264G
Rohm
SSOP-3
Voltage detector IC
2.6V±1%, -Reset PPO, Td=400ms
EM
BZT52B10WS
TAITRON Components
SOD-323F
Zener diode
9.80..10.20V, Izt=5mA, 300mW
EM
BZX585-B43
Philips
SOD-523
Zener diode
43V±2%, If=200mA, 300mW
EM
CD214B-T150CA
Bourns
DO-214AA
Transient voltage supressor
Vrwm=150V, Irsm=2.5A, 600W(1ms), Bidir.
EM
MAX6314US33D3-T
Maxim Integrated Products
SOT-143
Voltage detector IC
3.3V±1.8%, -MR, -Reset Bidir, PPO, 140ms
EM
MM3ZB10H
Zowie Technology
SOD-323
Zener diode
9.8..10.2V, Izt=5mA, Zzt=30, 300mW
EM
P6SMBJ150CA
PanJIT Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=150V, br=135..165V, 2.5A, 600W(1ms), Bidir.
EM
R3112Q411C
Ricoh
SC-82AB
Voltage detector IC
4.1V±2%, -Reset ODO
EM
R3114K421A
Ricoh
DFN1010-4
Voltage detector IC
4.2V±0.8%, -Reset ODO
EM
RP152N012B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/2.6V±1%, 150mA, +CE, CL
EM
RT9167-36CB
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 3.6V±2%, 300mA, +CE
EM
RT9193-29PQW
Richtek Technology
WDFN-6L
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE
EM
SiP21107DVP-46-E3
Vishay Semiconductor
TSC75-6L
Linear voltage regulator IC
LDO, 4.6V±1%, 150mA, +CE, -Error
EM
SiP809C27EUDT
Vishay Semiconductor
SOT-23
Voltage detector IC
2.7V±1.5%, -Reset PPO 210ms
EM
SM6T24A
MDE Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=20.5V, Vbr=22.8..25.2V, 18A, 600W(1ms)
EM
SMBG150CA
Vishay Semiconductor
DO-215AA
Transient voltage supressor
Vrwm=150V, Vbr=167..211.5V, 2.2A, 600W(1ms), Bidir.
EM
SMBJ150CA
Vishay Semiconductor
DO-214AA
Transient voltage supressor
Vrwm=150V, Vbr=167..211.5V, 2.2A, 600W(1ms), Bidir.
EM
SMBJ150CA
Diodes
DO-214AA
Transient voltage supressor
Vrwm=150V, Vbr=167..211.5V, 2.2A, 600W(1ms), Bidir.
EM
SS1040HE
PanJIT Semiconductor
SOD-123HE
Diode
SBR, 40V, 1A, Vf<0.55V(1A)
EM
TS810RCXD
Taiwan Semiconductor Company
SOT-23
Voltage detector IC
3.08V±1.5%, +Reset PPO
EM
TV06B151JB-G
Comchip Technology
DO-214AA
Transient voltage supressor
Vrwm=150.0V, Vbr=167.0..185.0V, Ipp=2.5A, 600W(1ms), Bidir.
EM
XC6127C33KNR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.3V±0.8%, +Reset PPO, -MR, Rt=800ms
EM
XC6127N34ENR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.4V±0.8%, -Reset ODO, -MR, Rt=800ms
EM
XC6223D291NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.9V±1%, 300mA, +CE, CL, PDR
EM
XC6223G29B9R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 2.95V±1%, 300mA, +CE, PDR, ICP
EM
XC6501B26ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.65V±1%, 200mA, +CE, CL
EM
XC9245A2KC7R-G
Torex Semiconductor
USPN-6
DC/DC voltage converter IC
PWM/PFM step-down, 1.2MHz, 2.75V±2.0%, 400mA, +CE
EM
Z1SMA13
Fagor Electronica
DO-214AC
Zener diode
130V±5%, Izt=50mA, 1.3W
EM
Z1SMA13
TAITRON Components
DO-214AC
Zener diode
12.4..14.1V, Izt=50mA, Zzt=10, 1W
EM+
XC62GP4922M
Torex Semiconductor
SOT-25
Linear voltage regulator IC
4.9V±2%, 150mA, -CE, HS response
EM+
XC62GP4922P
Torex Semiconductor
SOT-89-5
Linear voltage regulator IC
4.9V±2%, 150mA, -CE, HS response
EM+
XC62GR4922M
Torex Semiconductor
SOT-25
Linear voltage regulator IC
4.9V±2%, 150mA, +CE, HS response
EM+
XC62GR4922P
Torex Semiconductor
SOT-89-5
Linear voltage regulator IC
4.9V±2%, 150mA, +CE, HS response
EM-
RT9167-36PB
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 3.6V±2%, 300mA, +CE
EM-
XC62GP4912M
Torex Semiconductor
SOT-25
Linear voltage regulator IC
4.9V±2%, 150mA, -CE
EM-
XC62GP4912P
Torex Semiconductor
SOT-89-5
Linear voltage regulator IC
4.9V±2%, 150mA, -CE
EM-
XC62GR4912M
Torex Semiconductor
SOT-25
Linear voltage regulator IC
4.9V±2%, 150mA, +CE
EM-
XC62GR4912P
Torex Semiconductor
SOT-89-5
Linear voltage regulator IC
4.9V±2%, 150mA, +CE
EM0
XC6121D631MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM0
XC9237B40D0R-G
Torex Semiconductor
WLP-5-03
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 4.0V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
EM0
XC9237B40D4R-G
Torex Semiconductor
USP-6EL
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 4.0V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
EM0
XC9237B40DER-G
Torex Semiconductor
USP-6C
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 4.0V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
EM0
XC9237B40DMR-G
Torex Semiconductor
SOT-25
DC/DC voltage converter IC
PWM-PWM/PFM, st-dwn, 4.0V±2%, 600mA, 3MHz, Vin>2V, HSST, CL
EM0
XCL207B403AR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM-PWM/PFM step-down, 3MHz, 4.0V±2%, 600mA, CL
EM1
XC6121D632MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM2
XC6121D633MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM3
XC6121D634MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM4
XC6121D635MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM5
XC6121D636MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM6
XC6121D637MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM7
XC6121D638MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM8
XC6121D639MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EM9
XC6121D640MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMA
XC6121D641MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMB
XC6121D642MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMC
XC6121D643MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMD
XC6121D644MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EME
XC6121D645MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMF
MIC5330-2.8/1.5YML
Micrel
MLF-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=2.8V/1.5V±2%, 300mA, +CE
EMF
XC6121D616MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMF
XC6121D646MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMG
MIC5330-2.8/1.8YML
Micrel
MLF-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=2.8V/1.8V±2%, 300mA, +CE
EMH
XC6121D617MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMH
XC6121D647MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMJ
1.5SMC24A
Taiwan Semiconductor Company
DO-214AB
Transient voltage supressor
Vrwm=20.5V, Vbr=22.8..25.2V, Ipp=45A, 1500W(1ms)
EMK
MIC5330-2.8/2.6YML
Micrel
MLF-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=2.8V/2.6V±2%, 300mA, +CE
EMK
XC6121D618MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMK
XC6121D648MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EML
XC6121D619MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EML
XC6121D649MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMM
MIC5330-2.8/2.8YML
Micrel
MLF-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=2.8V/2.8V±2%, 300mA, +CE
EMM
XC6121D620MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMM
XC6121D650MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMN
XC6121D621MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMP
TPC24A
Vishay Semiconductor
TO-277A
Transient voltage supressor
Vbr=22.8..25.2V, Vrwm=20.5V, Ipp=45.2A, 1500W(1ms)
EMP
TPSMC24A
Vishay Semiconductor
DO-214AB
Transient voltage supressor
Vbr=22.8..25.2V, Vrwm=20.5V, 45.2A, 1500W(1ms)
EMP
XC6121D622MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMP00
EMA1901-50WL09G
Elite Semiconductor Memory Technology
BGA-9
Linear IC
AF PA, BTL, 2.5..5.5V, 1.25W(5V/8), shutdown
EMP01
EMA2901-50WL09GR
Elite Semiconductor Memory Technology
BGA-9
Linear IC
AF PA, BTL, 2.5..5.5V, 2.5W(5V/8), shutdown
EMP02
EMA1903-50WL09G
Elite Semiconductor Memory Technology
BGA-9
Linear IC
AF PA, BTL, 2.2..5.5V, 1W(5V/8), shutdown
EMR
XC6121D623MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMS
XC6121D624MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMT
XC6121D625MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMU
XC6121D626MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMV
XC6121D627MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMX
XC6121D628MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMY
XC6121D629MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms
EMZ
XC6121D630MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, -Reset ODO, +WDEN, Wt=1.6s, Rt=100ms