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 'S3'

Marking
Name
Manufacturer/Case
Function
S3
1SS357
Toshiba
SOD-323
Diode
Schottky, 40V, 100mA, Vf<0.6V(100mA), <25pF
S3
1SS369
Toshiba
SOD-323
Diode
Schottky, 40V, 100mA, Vf<0.6V(100mA), <25pF
S3
1SS388
Toshiba
SOD-523
Diode
Schottky, 45V, 100mA, Vf<0.6V(50mA)
S3
2SA813-3
NEC Electronics
SOT-23
PNP transistor
GP, 60V, 200mA, 150mW, B=80..160, 200MHz
S3
APX803-46SR
Diodes
SOT-23
Voltage detector IC
4.63V±1.5%, -Reset ODO
S3
BBQ31R
Zetex
SOT-23
NPN transistor
HF, 30V, 100mA, 330mW, B>20, >600MHz
S3
BBY51
Siemens
SOT-23
Capacitance diode
Dual, Tuning, VCO, 7V, 4.5/6.1pF(4/1V)
S3
BSV36
Ferranti Semiconductors
SOT-323
NPN transistor
Sw, 15V, 500mA, <20/15ns
S3
ELM7633HCB
ELM Technology
SOT-23
Voltage detector IC
3.3V±2%, +Reset PPO, 150ms
S3
ELM9743CAB
ELM Technology
SOT-89
Voltage detector IC
4.3V±2.5%, +Reset PPO
S3
ELM9743CBB
ELM Technology
SOT-23
Voltage detector IC
4.3V±2.5%, +Reset PPO
S3
FMS3
Rohm
SOT-23-5
PNP transistor
Dual, GP, 120V, 50mA, 140MHz
S3
FS2D
Fagor Electronica
DO-214AA
Diode
Rectifier, 200V, 1.5A, Vf<1.1V(1.5A), 4µs
S3
R1121N331B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 3.3V±2%, 150mA, +CE
S3
R1131D131D
Ricoh
SON-6
Linear voltage regulator IC
LDO, 1.3V±2%, 300mA, +CE, CL
S3
R1225N152D
Ricoh
SOT-23-6W
DC/DC voltage converter IC
PWM step-down, 1.5V±2%, 500kHz
S3
R3116Q201C
Ricoh
SC-82AB
Voltage detector IC
2V±0.8%, -Reset PPO
S3
R3117K203C
Ricoh
DFN1010-4
Voltage detector IC
2.0V±1%, -Reset PPO, Sense
S3
R3130N29DA3
Ricoh
SOT-23
Voltage detector IC
2.9V±1.5%, -Reset PPO, 200ms
S3
RP104Q301D
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 3.0V±0.8%, 150mA, +CE, CL
S3
RP114K311D
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE, CL
S3
SD101CW
Diodes
SOD-123
Diode
Schottky, Fast Sw, 40V, 15mA, 2.2pF, 1ns
S3
SD101CWS
Diodes
SOD-323
Diode
Schottky, Fast Sw, 40V, 15mA, 2.2pF, 1ns
S3
SS13
Vishay Semiconductor
DO-214AC
Diode
SBR, 30V, 1A, Vf<0.5V(1A)
S3
SS23
Vishay Semiconductor
DO-214AA
Diode
SBR, 30V, 2A, Vf<0.5V(2A)
S3
SS33
Vishay Semiconductor
DO-214AB
Diode
SBR, 30V, 3A, Vf<0.5V(3A)
S3
SSM5818SLGP
Chenmko Enterprise
SOD-123
Diode
SBR, 30V, 500mA, Vf<0.43V(500mA)
S3
XC6223C13BNR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.35V±20mV, 300mA, +CE, PDR
S3
XC6225B19ANR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.95V±2%, 30mA, +CE, CL
S3
ZXTP720MA
Zetex
DFN2020B-3
PNP transistor
Sw, Drv, 50V, 3A, 1.5W, B=300..480, 190MHz
S30
FP1A4A
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R2=10k
S30
GS810CTEU
Vishay Semiconductor
SOT-23
Voltage detector IC
3.08V±1.5%, +Reset PPO, 210ms
S30
R1162N301B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±2%, 150mA, +CE, AE(Mode)
S30
RP202N301B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.0V±1%, 200mA, +CE
S30
XC6371E301P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.0V±2.5%, 100mA, int. Vdd
S301
R5220K301A
Ricoh
PLP2514-6
DC/DC voltage converter IC
PWM step-down, +CE, Vdc=Vldo=3V
S30B
R1511S030B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.0V±1%, 300mA, +CE
S30C
FS8844-30GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.0V±2%, 250mA
S31
1SS357
Transys Electronics
SOD-323
Diode
Schottky, 40V, 100mA, Vf<0.6V(100mA), <25pF
S31
FP1L2Q
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=0k47/4k7
S31
R1162N311B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.1V±2%, 150mA, +CE, AE(Mode)
S31
RP202N311B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.1V±1%, 200mA, +CE
S31
XC6371E311P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.1V±2.5%, 100mA, int. Vdd
S310
SSM310PT
Chenmko Enterprise
DO-214AC
Diode
SBR, 100V, 3A, Vf<0.85V(3A)
S311
R5220K311A
Ricoh
PLP2514-6
DC/DC voltage converter IC
PWM step-down, +CE, Vdc=Vldo=3.1V
S31B
R1511S031B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.1V±1%, 300mA, +CE
S31C
FS8844-31GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.1V±2%, 250mA
S32
FP1A3M
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=1k/1k
S32
NC7S32P5
Fairchild Semiconductor
SC-70-5
Capacitance diode
2-input OR gate
S32
R1162N321B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.2V±2%, 150mA, +CE, AE(Mode)
S32
RP202N321B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.2V±1%, 200mA, +CE
S32
XC6371E321P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.2V±2.5%, 100mA, int. Vdd
S321
R5220K321A
Ricoh
PLP2514-6
DC/DC voltage converter IC
PWM step-down, +CE, Vdc=Vldo=3.2V
S32B
R1511S032B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE
S32C
FS8844-32GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.2V±2%, 250mA
S32L
SSM32LPT
Chenmko Enterprise
DO-214AC
Diode
SBR, 20V, 3A, Vf<0.4V(3A)
S33
FP1F3P
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=2k2/10k
S33
R1162N331B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.3V±2%, 150mA, +CE, AE(Mode)
S33
RP202N331B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.3V±1%, 200mA, +CE
S33
SS3P3L
Vishay Semiconductor
TO-277A
Diode
SBR, 30V, 3A, Vf<0.47V(3A)
S33
XC6371E331P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.3V±2.5%, 100mA, int. Vdd
S331
R5220K331A
Ricoh
PLP2514-6
DC/DC voltage converter IC
PWM step-down, +CE, Vdc=Vldo=3.3V
S33B
R1511S033B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.3V±1%, 300mA, +CE
S33C
FS8844-33GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.3V±2%, 250mA
S33L
SSM33LPT
Chenmko Enterprise
DO-214AC
Diode
SBR, 30V, 3A, Vf<0.4V(3A)
S34
FP1L3N
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=4k7/10k
S34
R1162N341B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.4V±2%, 150mA, +CE, AE(Mode)
S34
RP202N341B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.4V±1%, 200mA, +CE
S34
SS3P4L
Vishay Semiconductor
TO-277A
Diode
SBR, 40V, 3A, Vf<0.47V(3A)
S34
SSA34
Vishay Semiconductor
DO-214AC
Diode
SBR, 40V, 3A, Vf<0.49V(3A)
S34
XC6371E341P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.4V±2.5%, 100mA, int. Vdd
S34B
R1511S034B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.4V±1%, 300mA, +CE
S34C
FS8844-34GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.4V±2%, 250mA
S34H
SSM34LHPT
Chenmko Enterprise
DO-214AC
Diode
SBR, 40V, 3A, Vf<0.45V(3A)
S34L
SSM34LPT
Chenmko Enterprise
DO-214AC
Diode
SBR, 40V, 3A, Vf<0.4V(3A)
S35
FP1A4M
NEC Electronics
SC-59
PNP transistor
Sw, 30V, 700mA, 200mW, R1/R2=10k/10k
S35
FP1L3N
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=10k/10k
S35
R1162N351B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.5V±2%, 150mA, +CE, AE(Mode)
S35
RP202N351B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.5V±1%, 200mA, +CE
S35
SGM2027-PYTN6G
SG Micro
TSOT-23-6L
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/2.8V±2%, 250mA, +CE
S35
SS3P5L
Vishay Semiconductor
TO-277A
Diode
SBR, 50V, 3A, Vf<0.54V(3A)
S35
XC6371E351P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.5V±2.5%, 100mA, int. Vdd
S35B
R1511S035B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.5V±1%, 300mA, +CE
S35C
FS8844-35GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.5V±2%, 250mA
S36
FP1J3P
NEC Electronics
SC-59
PNP transistor
Sw, 25V, 700mA, 200mW, R1/R2=3k3/10k
S36
R1162N361B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.6V±2%, 150mA, +CE, AE(Mode)
S36
RP202N361B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.6V±1%, 200mA, +CE
S36
SS3P6L
Vishay Semiconductor
TO-277A
Diode
SBR, 60V, 3A, Vf<0.54V(3A)
S36
XC6371E361P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.6V±2.5%, 100mA, int. Vdd
S36B
R1511S036B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.6V±1%, 300mA, +CE
S36C
FS8844-36GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.6V±2%, 250mA
S37
R1162N371B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.7V±2%, 150mA, +CE, AE(Mode)
S37
RP202N371B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.7V±1%, 200mA, +CE
S37
XC6371E371P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.7V±2.5%, 100mA, int. Vdd
S37B
R1511S037B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.7V±1%, 300mA, +CE
S37C
FS8844-37GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.7V±2%, 250mA
S38
R1162N381B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.8V±2%, 150mA, +CE, AE(Mode)
S38
RP202N381B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.8V±1%, 200mA, +CE
S38
XC6371E381P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.8V±2.5%, 100mA, int. Vdd
S38B
R1511S038B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.8V±1%, 300mA, +CE
S38C
FS8844-38GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.8V±2%, 250mA
S39
R1162N391B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.9V±2%, 150mA, +CE, AE(Mode)
S39
RP202N391B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, 3.9V±1%, 200mA, +CE
S39
XC6371E391P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 100kHz, 3.9V±2.5%, 100mA, int. Vdd
S39B
R1511S039B
Ricoh
HSOP-6J
Linear voltage regulator IC
LDO, 3.9V±1%, 300mA, +CE
S39C
FS8844-39GC
Fortune Semiconductor
SOT-23
Linear voltage regulator IC
LDO, 3.9V±2%, 250mA
S3A
S-1721B1515-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/1.5V±1.0%, 150mA, ±CE, PDR, PUR
S3A
XC6371E302P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.0V±2.5%, 100mA, int. Vdd
S3B
LM809M3-2.63
National Semiconductor
SOT-23
Voltage detector IC
2.63V±1.5%, -Reset PPO
S3B
S-1721B1518-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.5V/1.8V±1.0%, 150mA, ±CE, PDR, PUR
S3B
SGM2027-VYTN6G
SG Micro
TSOT-23-6L
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/3.3V±2%, 250mA, +CE
S3B
XC6371E312P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.1V±2.5%, 100mA, int. Vdd
S3C
S-1721B1812-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/1.2V±1.0%, 150mA, ±CE, PDR, PUR
S3C
SGM2027-WYTN6G
SG Micro
TSOT-23-6L
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.2V/2.8V±2%, 250mA, +CE
S3C
XC6371E322P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.2V±2.5%, 100mA, int. Vdd
S3D
S-1721B1818-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/1.8V±1.0%, 150mA, ±CE, PDR, PUR
S3D
XC6371E332P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.3V±2.5%, 100mA, int. Vdd
S3E
S-1721B2818-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/1.8V±1.0%, 150mA, ±CE, PDR, PUR
S3E
SGM2027-YYTN6G
SG Micro
TSOT-23-6L
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=1.8V/2.8V±2%, 250mA, +CE
S3E
XC6371E342P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.4V±2.5%, 100mA, int. Vdd
S3F
S-1721B2J2J-I6T1x
Seiko Instruments
SNT-6A
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.85V/2.85V±1.0%, 150mA, ±CE, PDR, PUR
S3F
XC6371E352P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.5V±2.5%, 100mA, int. Vdd
S3G
1SS355G-CB2
Unisonic Technologies
SOD-323
Diode
Sw, 90V, 100mA, Vf<1.2V(100mA), 4ns
S3G
S-1721B2828-M6T1x
Seiko Instruments
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.8V/2.8V±1.0%, 150mA, ±CE, PDR, PUR
S3H
XC6371E362P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.6V±2.5%, 100mA, int. Vdd
S3K
XC6371E372P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.7V±2.5%, 100mA, int. Vdd
S3L
1SS355L-CB2
Unisonic Technologies
SOD-323
Diode
Sw, 90V, 100mA, Vf<1.2V(100mA), 4ns
S3L
XC6371E382P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.8V±2.5%, 100mA, int. Vdd
S3M
XC6371E392P
Torex Semiconductor
SOT-89-5
DC/DC voltage converter IC
PWM step-up, 180kHz, 3.9V±2.5%, 100mA, int. Vdd
S3P02
MMSF3P02HD
Motorola
SOP-8
MOSFET p-type
V-MOS, LogL, 20V, 5.6A, 2.5W, <75m(5A)
S3P02Z
MMSF3P02Z
Motorola
SOP-8
MOSFET p-type
V-MOS, LogL, 20V, 6.5A, 2.5W, <60m(5A)
S3P03
MMSF3P03HD
Motorola
SOP-8
MOSFET p-type
V-MOS, LogL, 30V, 4.6A, 2.5W, <0.1(5A)