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 'FK'

Marking
Name
Manufacturer/Case
Function
FK
2SB800-K
NEC Electronics
SOT-89
PNP transistor
AF-Amp, 80V, 300mA, 2W, 100MHz, B=200..400
Fk
BD48L25G
Rohm
SSOP-3
Voltage detector IC
2.5V±1%, -Reset ODO
FK
BD4929FVE
Rohm
VSOF-5
Voltage detector IC
2.9V±1%, -Reset PPO
FK
BD4929G
Rohm
SSOP-5
Voltage detector IC
2.9V±1%, -Reset PPO
fK
BU46K434G
Rohm
SSOP-3
Voltage detector IC
4.3V±1%, -Reset PPO, Td=400ms
FK
ELM7629LDB
ELM Technology
SOT-23
Voltage detector IC
2.9V±2%, -Reset PPO, 50ms
FK
ELM99191B
ELM Technology
SOT-89
Linear voltage regulator IC
LDO, 1.9V±2%, 300mA
FK
ELM99292B
ELM Technology
SOT-89-5
Linear voltage regulator IC
LDO, 2.9V±2%, 300mA, -CE
fk
FP6121-JS6P
Fitipower Integrated Technology
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.3V/2.8V±2%, 150mA, +CE
FK
FP6121-NS6P
Fitipower Integrated Technology
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/3.3V±2%, 150mA, +CE
FK
KRC160F
Korea Electronics
TFSM
NPN transistor
Sw, 20V, 50mA, 50mW, 200MHz, R1=4.7k
FK
MAX6314US37D4-T
Maxim Integrated Products
SOT-143
Voltage detector IC
3.7V±1.8%, -MR, -Reset Bidir, PPO, 1120ms
FK
PZU12B1
Philips
SOD-323FL
Zener diode
11.42..11.9V, Zzt=10(Izt=5mA), 310mW
FK
R1141Q291D
Ricoh
SOT-143R
Linear voltage regulator IC
LDO, 2.9V±2%, 120mA, +CE, CL
FK
R3114K161C
Ricoh
DFN1010-4
Voltage detector IC
1.6V±0.8%, -Reset PPO
FK
R3134K19EC
Ricoh
DFN1212-6
Voltage detector IC
1.9V±1.8%, -Reset PPO, -MR
FK
RP130Q201B
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, LN, +CE, 2V±1%, 150mA
FK
RP152N034B
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/2.6V±1%, 150mA, +CE, CL
FK
RT9808-32CV
Richtek Technology
SOT-23
Voltage detector IC
3.2V±2%, -Reset ODO
FK
SiP810CMEUDDT
Vishay Semiconductor
SOT-23
Voltage detector IC
4.38V±1.5%, +Reset PPO 30ms
FK
SMF6.5A
Eris Technology
SOD-123FL
Transient voltage supressor
Vrwm=6.5V, Vbr=7.22..7.98V, 17.9A, 200W(10/1000µs)
FK
TV02W6V5-G
Comchip Technology
SOD-123
Transient voltage supressor
Vrwm=6.5V, Vbr=7.22..7.98V, Ipp=17.9A, 200W(1ms)
FK
TV06B401JB-G
Comchip Technology
DO-214AA
Transient voltage supressor
Vrwm=400.0V, Vbr=447.0..494.0V, Ipp=0.93A, 600W(1ms), Bidir.
FK
UNR32A1
Panasonic
SSSMini3
NPN transistor
Sw, 50V, 80mA, 100mW, 150MHz, R1/R2=10k/10k
FK
XC6127C30ANR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=50ms
FK
XC6127N30FNR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.0V±0.8%, +Reset ODO, -MR, Rt=50ms
FK
XC6223E341NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE, ICP
FK
XC6223H27B9R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 2.75V±1%, 300mA, +CE, CL, PDR, ICP
FK
XC6501B35ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 3.55V±1%, 200mA, +CE, CL
FK
Z1SMA68
Fagor Electronica
DO-214AC
Zener diode
68V±5%, Izt=10mA, 1.3W
FK
Z1SMA68
TAITRON Components
DO-214AC
Zener diode
64..72V, Izt=10mA, Zzt=80, 1W
FK0
XC6122F530MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK0
XCL201B201BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.0V±2%, 400mA, +CE, CL
FK1
XC6122F531MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK1
XCL201B211BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.1V±2%, 400mA, +CE, CL
FK2
XC6122F532MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK2
XCL201B221BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.2V±2%, 400mA, +CE, CL
FK3
XC6122F533MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK3
XCL201B231BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.3V±2%, 400mA, +CE, CL
FK4
XC6122F534MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK4
XCL201B241BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.4V±2%, 400mA, +CE, CL
FK5
XC6122F535MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK5
XCL201B251BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.5V±2%, 400mA, +CE, CL
FK6
XC6122F536MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK6
XCL201B261BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.6V±2%, 400mA, +CE, CL
FK7
XC6122F537MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK7
XCL201B271BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.7V±2%, 400mA, +CE, CL
FK8
XC6122F538MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK8
XCL201B281BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.8V±2%, 400mA, +CE, CL
FK9
XC6122F539MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FK9
XCL201B291BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.9V±2%, 400mA, +CE, CL
FKA
XC6122F540MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKA
XC6127C29A7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, -Reset PPO, -MR, Rt=50ms
FKA
XCL201B2A1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.05V±2%, 400mA, +CE, CL
FKAA
MAX6327UR28-T
Maxim Integrated Products
SOT-23
Voltage detector IC
2.8V±1.5%, +Reset PPO
FKB
XC6122F541MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKB
XC6127C29B7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, -Reset PPO, -MR, Rt=100ms
FKB
XCL201B2B1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.15V±2%, 400mA, +CE, CL
FKC
XC6122F542MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKC
XC6127C29C7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, -Reset PPO, -MR, Rt=200ms
FKC
XCL201B2C1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.25V±2%, 400mA, +CE, CL
FKD
XC6122F543MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKD
XC6127C29D7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, -Reset PPO, -MR, Rt=400ms
FKD
XCL201B2D1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.35V±2%, 400mA, +CE, CL
FKE
XC6122F544MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKE
XC6127C29E7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, -Reset PPO, -MR, Rt=800ms
FKE
XCL201B2E1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.45V±2%, 400mA, +CE, CL
FKF
XC6122F545MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKF
XC6127C29F7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, +Reset PPO, -MR, Rt=50ms
FKF
XCL201B2F1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.55V±2%, 400mA, +CE, CL
FKH
XC6122F516MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKH
XC6122F546MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKH
XC6127C29G7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, +Reset PPO, -MR, Rt=100ms
FKH
XCL201B2H1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.65V±2%, 400mA, +CE, CL
FKJ
1.5SMC56A
Taiwan Semiconductor Company
DO-214AB
Transient voltage supressor
Vrwm=47.8V, Vbr=53.2..58.8V, Ipp=19.5A, 1500W(1ms)
FKK
XC6122F517MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKK
XC6122F547MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKK
XC6127C29H7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, +Reset PPO, -MR, Rt=200ms
FKK
XCL201B2K1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.75V±2%, 400mA, +CE, CL
FKL
XC6122F518MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKL
XC6122F548MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKL
XC6127C29J7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, +Reset PPO, -MR, Rt=400ms
FKL
XCL201B2L1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.85V±2%, 400mA, +CE, CL
FKM
XC6122F519MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKM
XC6122F549MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKM
XC6127C29K7R
Torex Semiconductor
USPN-4
Voltage detector IC
2.9V±0.8%, +Reset PPO, -MR, Rt=800ms
FKM
XCL201B2M1BR-G
Torex Semiconductor
CL-2025
DC/DC voltage converter IC
PWM step-down, 1.2MHz, 2.95V±2%, 400mA, +CE, CL
FKN
XC6122F520MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKN
XC6122F550MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKN
XC6127C30A7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=50ms
FKP
XC6122F521MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKP
XC6127C30B7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=100ms
FKR
XC6122F522MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKR
XC6127C30C7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=200ms
FKs
BFN25
Siemens
SOT-23
PNP transistor
Vid, 250V, 200mA, 360mW, B>40, 100MHz
FKS
XC6122F523MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKS
XC6127C30D7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=400ms
FKT
XC6122F524MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKT
XC6127C30E7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, -Reset PPO, -MR, Rt=800ms
FKU
XC6122F525MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKU
XC6127C30F7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, +Reset PPO, -MR, Rt=50ms
FKV
XC6122F526MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKV
XC6127C30G7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, +Reset PPO, -MR, Rt=100ms
FKX
XC6122F527MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKX
XC6127C30H7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, +Reset PPO, -MR, Rt=200ms
FKY
XC6122F528MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKY
XC6127C30J7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, +Reset PPO, -MR, Rt=400ms
FKZ
XC6122F529MR-G
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, -Reset ODO, +WDEN, PUR, Wt=400ms, Rt=400ms
FKZ
XC6127C30K7R
Torex Semiconductor
USPN-4
Voltage detector IC
3.0V±0.8%, +Reset PPO, -MR, Rt=800ms