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 'SF'

Marking
Name
Manufacturer/Case
Function
SF
2SC4703-F
NEC Electronics
SOT-89
NPN transistor
uWave, 25V, 150mA, 1.8W, 6GHz, B=80..160
SF
2SC5338-F
NEC Electronics
SOT-89
NPN transistor
UHF, CATV, 25V, 150mA, 1.8W, 6GHz, B=80..160
SF
AP7313-25SR
Diodes
SOT-23
Linear voltage regulator IC
LDO, 2.5V±2%, 150mA
SF
ASM809REUR
Alliance Semiconductor
SOT-23
Voltage detector IC
2.63V±1.5%, -Reset PPO
SF
AX6905FR
AXElite Technology
SOT-23-3L
Voltage detector IC
2.63V±1.5%, -Reset PPO
Sf
AX6906IR
AXElite Technology
SOT-23-3L
Voltage detector IC
4.25V±1.5%, +Reset PPO
SF
B0540W
Diodes
SOD-123
Diode
SBR, 40V, 500mA, Vf<0.46V(500mA), 170pF
SF
B0540WS
Diodes
SOD-323
Diode
SBR, 40V, 500mA, Vf<0.48V(500mA), 120pF
SF
BZX84J-B20
NXP Semiconductors
SOD-323FL
Zener diode
20V±2%, If=250mA, 550mW
SF
EC76SMAJ120
E-CMOS
DO-214AC
Transient voltage supressor
Vbr=133..163V, Vrwm=120V, Ipp=1.4A, 400W(1ms)
SF
ELM99152B
ELM Technology
SOT-89-5
Linear voltage regulator IC
LDO, 1.5V±2%, 300mA, -CE
SF
IXD5127C26GNR
IXYS
SSOT-24
Voltage detector IC
2.6V±0.8%, +Reset PPO, -MR, 100ms Rt delay
SF
KDZ30FV
Korea Electronics
TFSC
Zener diode
28.0..32.0V, Izt=2mA, Zzt=200, 100mW
Sf
LD6919GU-29
Leadtrend Technology
SC-70-6
Linear voltage regulator IC
LDO, Ultra-LN, Soft start, 2.9V±2%, 500mA, +CE
SF
MAZD220
Panasonic
SSSMini2
Zener diode
20.8..23.3V, Zzt=80(5mA), 120mW
SF
P4SMA30C
Fagor Electronica
DO-214AC
Transient voltage supressor
Vbr=28.5..31.5V, Vrwm=25.6V, 10.0A, 400W(1ms), Bidirectional
SF
P4SMAJ120
Won-Top Electronics
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..169.0V, Ipp=1.9A, 400W(1ms)
SF
P4SMAJ120
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..163V, Ipp=1.9A, 400W(1ms)
SF
P4SMAJ120
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..169.0V, Ipp=1.9A, 400W(1ms)
sf
PT7M7811JTA
Pericom Technology
SOT-23-5
Voltage detector IC
4.0V±1.5%, -Reset PPO, -MR
sf
PT7M7811JTAE
Pericom Technology
SOT-23-5
Voltage detector IC
4.0V±1.5%, -Reset PPO, -MR, Lead free
sf
PT7M7811JTB
Pericom Technology
SOT-143
Voltage detector IC
4.0V±1.5%, -Reset PPO, -MR
sf
PT7M7811JTBE
Pericom Technology
SOT-143
Voltage detector IC
4.0V±1.5%, -Reset PPO, -MR, Lead free
SF
R1114Q151D
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, Low noise, 1.5V±2%, 150mA, +CE, CL
SF
R1225N502K
Ricoh
SOT-23-6W
DC/DC voltage converter IC
PWM step-down, 5V±2%, 180kHz
SF
RP130K391A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, LN, -CE, 3.9V±1%, 150mA
SF
RP152L006B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.3V/1.8V±1%, 150mA, +CE, CL
SF
SMAJ120
Vishay Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..163V, 1.4A, 400W(1ms)
SF
SMAJ120
Taiwan Semiconductor Company
DO-214AC
Transient voltage supressor
Vrwm=120.0V, Vbr=133.0..163.0V, Ipp=1.87A, 400W(1ms)
SF
SMAJ120
Socay Electronics
DO-214AC
Transient voltage supressor
Vrwm=120.0V, Vbr=133.0..163.0V, Ipp=1.87A, 400W(1ms)
SF
SMAJ120G
First Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..169.0V, Ipp=1.9A, 400W(1ms)
SF
SMBTA13
Siemens
SOT-23
NPN darlington
GP, 30V, 300mA, 300mW, B>5000, >125MHz
SF
TC75S55F
Toshiba
SMV
Operational amplifier IC
CMOS, Vcc=±0.9..±3.5V, Icc0=20µA
SF
TC75S55FE
Toshiba
ESV
Operational amplifier IC
CMOS, Vcc=±0.9..±3.5V, Icc0=20µA
SF
TC75S55FU
Toshiba
USV
Operational amplifier IC
CMOS, Vcc=±0.9..±3.5V, Icc0=20µA
SF
TV04A121K-G
Comchip Technology
DO-214AC
Transient voltage supressor
Vrwm=120.0V, Vbr=133.0..163.0V, Ipp=1.87A, 400W(1ms)
SF
XC6127C26GNR
Torex Semiconductor
SSOT-24
Voltage detector IC
2.6V±0.8%, +Reset PPO, -MR, 100ms Rt delay
SF
XC6223C25BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.55V±1%, 300mA, +CE, PDR
SF
XC6501C24ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.45V±1%, 200mA, +CE, PDR
SF
XC6603A101MR-G
Torex Semiconductor
SOT-26W
Linear voltage regulator IC
LDO, 1.0V±15mV, 1A, +CE
SF0
BB804-0
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 42/43.5pF
SF0
BB804F0
Siemens
SOT-23
Capacitance diode
Dual, 18V, <50mA, Rs<0.2 , 42/43.pF
SF0
SGM2200-ADJYC5G
SG Micro
SC-70-5
Linear voltage regulator IC
LDO, Adj. 1.5..5.0V±3%, 50mA
SF0
XC6371E500P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.0V±2.5%, 100mA, int. Vdd
SF0
XC6373E500P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.0V±2.5%, 100mA, int. Vdd
SF0
XC6373E500P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.0V±2.5%, 100mA, int. Vdd
SF1
BB804-1
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 43/44.5pF
SF1
BB804F1
Siemens
SOT-23
Capacitance diode
Dual, 18V, <50mA, 43/44.5pF
SF1
XC6371E510P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.1V±2.5%, 100mA, int. Vdd
SF1
XC6373E510P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.1V±2.5%, 100mA, int. Vdd
SF1
XC6373E510P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.1V±2.5%, 100mA, int. Vdd
SF11
SODSF11-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 50V, 1A, Vf<0.95V(1A), 15pF
SF11M
SFM11M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 50V, 1A, Vf<0.95V(1A), 35ns
SF12
SODSF12-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 100V, 1A, Vf<0.95V(1A), 15pF
SF12M
SFM12M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 100V, 1A, Vf<0.95V(1A), 35ns
SF13
SODSF13-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 150V, 1A, Vf<0.95V(1A), 15pF
SF13M
SFM13M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 150V, 1A, Vf<0.95V(1A), 35ns
SF14
SODSF14-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 200V, 1A, Vf<0.95V(1A), 15pF
SF14M
SFM14M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 100V, 1A, Vf<1.25V(1A), 35ns
SF15
SODSF15-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 300V, 1A, Vf<1.25V(1A), 15pF
SF15M
SFM15M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 300V, 1A, Vf<1.25V(1A), 35ns
SF16
SODSF16-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 400V, 1A, Vf<1.25V(1A), 15pF
SF16M
SFM16M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 400V, 1A, Vf<1.85V(1A), 35ns
SF17
SODSF17-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 500V, 1A, Vf<1.7V(1A), 15pF
SF18
SODSF18-SH
Leshan Radio Company
SOD-123FL
Diode
Fast recov. rectif, 600V, 1A, Vf<1.7V(1A), 15pF
SF18M
SFM18M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 600V, 1A, Vf<1.85V(1A), 35ns
SF19M
SFM19M
Micro Commercial Components
DO-214AC
Diode
Super-fast Rec. Rect., 800V, 1A, Vf<1.85V(1A), 35ns
SF2
BB804-2
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 44/45.5pF
SF2
BB804F2
Siemens
SOT-23
Capacitance diode
Dual, 18V, <50mA, 44/45.5pF
SF2
BB804W
Philips
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 45/26pF
SF2
XC6371E520P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.2V±2.5%, 100mA, int. Vdd
SF2
XC6373E520P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.2V±2.5%, 100mA, int. Vdd
SF2
XC6373E520P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.2V±2.5%, 100mA, int. Vdd
SF3
BB804-3
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 45/46.5pF
SF3
BB804F3
Siemens
SOT-23
Capacitance diode
Dual, 18V, <50mA, 45/46.5pF
SF3
XC6371E530P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.3V±2.5%, 100mA, int. Vdd
SF3
XC6373E530P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.3V±2.5%, 100mA, int. Vdd
SF3
XC6373E530P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.3V±2.5%, 100mA, int. Vdd
SF4
BB804-4
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 46/47.5pF
SF4
BB804F4
Siemens
SOT-23
Capacitance diode
Dual, 18V, <50mA, 46/47.5pF
SF4
XC6371E540P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.4V±2.5%, 100mA, int. Vdd
SF4
XC6373E540P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.4V±2.5%, 100mA, int. Vdd
SF4
XC6373E540P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.4V±2.5%, 100mA, int. Vdd
SF5
BB804
Philips
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 45/26pF
SF5
XC6371E550P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.5V±2.5%, 100mA, int. Vdd
SF5
XC6373E550P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.5V±2.5%, 100mA, int. Vdd
SF5
XC6373E550P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.5V±2.5%, 100mA, int. Vdd
SF6
XC6371E560P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.6V±2.5%, 100mA, int. Vdd
SF6
XC6373E560P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.6V±2.5%, 100mA, int. Vdd
SF6
XC6373E560P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.6V±2.5%, 100mA, int. Vdd
SF7
XC6371E570P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.7V±2.5%, 100mA, int. Vdd
SF7
XC6373E570P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.7V±2.5%, 100mA, int. Vdd
SF7
XC6373E570P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.7V±2.5%, 100mA, int. Vdd
SF8
XC6371E580P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.8V±2.5%, 100mA, int. Vdd
SF8
XC6373E580P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.8V±2.5%, 100mA, int. Vdd
SF8
XC6373E580P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.8V±2.5%, 100mA, int. Vdd
SF9
XC6371E590P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 50kHz, 5.9V±2.5%, 100mA, int. Vdd
SF9
XC6373E590P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.9V±2.5%, 100mA, int. Vdd
SF9
XC6373E590P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 30kHz, 5.9V±2.5%, 100mA, int. Vdd
SFA
NCP301LSN27T1
ON Semiconductor
TSOP-5
Voltage detector IC
2.7V±1.5%, -Reset ODO
SFB
LM809M3-2.45
National Semiconductor
SOT-23
Voltage detector IC
2.45V±1.5%, -Reset PPO
SFD
NCP301LSN20T1
ON Semiconductor
TSOP-5
Voltage detector IC
2.0V±1.5%, -Reset ODO
SFF
NCP301LSN09T1
ON Semiconductor
TSOP-5
Voltage detector IC
0.9V±1.5%, -Reset ODO
SFH
NCP302HSN18T1
ON Semiconductor
TSOP-5
Voltage detector IC
1.8V±1.5%, +Reset PPO
SFJ
NCP300HSN18T1
ON Semiconductor
TSOP-5
Voltage detector IC
1.8V±1.5%, +Reset PPO
SFK
NCP300LSN18T1
ON Semiconductor
TSOP-5
Voltage detector IC
1.8V±1.5%, -Reset PPO
SFM
NCP301HSN18T1
ON Semiconductor
TSOP-5
Voltage detector IC
1.8V±1.5%, +Reset ODO
SFN
NCP301LSN18T1
ON Semiconductor
TSOP-5
Voltage detector IC
1.8V±1.5%, -Reset ODO
SFP
SMAJ120C
Bytesonic
DO-214AC
Transient voltage supressor
Vrwm=120V, Vbr=133..163V, 1.4A, 400W(1ms), Bidirectional
SFQ
NCP304LSQ47T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.7V±1.5%, -Reset PPO
SFR
NCP304LSQ46T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.6V±1.5%, -Reset PPO
SFs
BB804
Siemens
SOT-23
Capacitance diode
Dual, VHF, 18V, 50mA, 42/43.5pF
SFs
BSS169
Siemens
SOT-23
MOSFET n-type
V-MOS, 100V, 120mA, <12(0.5A)
SFS
NCP304LSQ45T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.5V±1.5%, -Reset PPO
SFU
NCP304LSQ42T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.2V±1.5%, -Reset PPO
SFV
NCP304LSQ43T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.3V±1.5%, -Reset PPO
SFY
NCP304LSQ40T1
ON Semiconductor
SC-82AB
Voltage detector IC
4.0V±1.5%, -Reset PPO
SFZ
MIC5310-3.3/1.5YML
Micrel
MLF-8
Linear voltage regulator IC
LDO, Dual out, Vo1/Vo2=3.3V/1.5V±2%, 150mA, +CE