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 '1R'

Marking
Name
Manufacturer/Case
Function
1R
2SC4929
Panasonic
SOT-89
NPN transistor
Sw, 500/400V, 800mA, 80MHz
1R
FMMT5089
Zetex
SOT-23
NPN transistor
AF, 30V, 50mA, 330mW, B=400..1200, >50MHz
1R
FS2M
Fagor Electronica
DO-214AA
Diode
Rectifier, 1000V, 1.5A, Vf<1.1V(1.5A), 4µs
1R
IMP161RCUS
IMP
SOT-143
Voltage detector IC
2.63V±1.5%, -Reset ODO, -MR
1R
KST5089
Samsung Electronics
SOT-23
NPN transistor
GP, 35V, 50mA, 350mW, B=400..1200, >50MHz
1R
MM3Z6V2
Luguang Electronic Technology
SOD-323FL
Zener diode
5.8..6.6V, Izt=5mA, Zzt=50, 300mW
1R
MMBT5089
Motorola
SOT-23
NPN transistor
GP, LN, 30V, 50mA, 225mW, B=400..1200, >50MHz
1R
R1210N311A
Ricoh
SOT-23-5
DC/DC voltage converter IC
PWM step-up, 3.1V, 35..100kHz
1R
R3117K221A
Ricoh
DFN1010-4
Voltage detector IC
2.2V±1%, -Reset ODO, Sense
1R
R3131N44BA
Ricoh
SOT-23
Voltage detector IC
4.4V±1.5%, +Reset PPO, 100ms
1R
R3133Q25EA
Ricoh
SOT-143
Voltage detector IC
2.5V±1.5%, +Reset PPO, -MR
1R
R5326N016A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=2.85V/2.85V±1%, 150mA, +CE
1R
RP100K331B
Ricoh
PLP1612-4
Linear voltage regulator IC
LDO, LN, 3.3V±0.8%, 200mA, +CE
1R
RP112K251B
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.5V±1%, 150mA, +CE
1R
RP173K251A
Ricoh
DFN1010-4
Linear voltage regulator IC
LDO, 2.5V±1%, 150mA, -CE
1R
SRA2201E
AUK Semiconductor
SOT-523
PNP transistor
Sw, 50V, 100mA, 150mW, 200MHz, R1/R2=4.7k/47k
1R
SRA2201EF
AUK Semiconductor
SOT-523F
PNP transistor
Sw, 50V, 100mA, 150mW, 200MHz, R1/R2=4.7k/4.7k
1R
SRA2201U
AUK Semiconductor
SOT-323
PNP transistor
Sw, 50V, 100mA, 200mW, 200MHz, R1/R2=4.7k/4.7k
1R
SRA2201UF
AUK Semiconductor
SOT-323F
PNP transistor
Sw, 50V, 100mA, 200mW, 200MHz, R1/R2=4.7k/4.7k
1R
STZ8062

SOD-323
Zener diode
5.8..6.6V, Izt=5mA, Zzt=30, 300mW
1R
TMPT5089
Allegro MicroSystems
SOT-23
NPN transistor
AF, 30V, 50mA, 330mW, B=400..1200, >50MHz
1R
UNRF1A0
Panasonic
ML3
PNP transistor
Sw, 50V, 80mA, 100mW, 80MHz, R1=47k
1R
XC6127N39BNR
Torex Semiconductor
SSOT-24
Voltage detector IC
3.9V±0.8%, -Reset ODO, -MR, Rt=100ms
1R
XC6217C2327R-G
Torex Semiconductor
USPN-4
Linear voltage regulator IC
LDO, 2.3V±2%, 200mA, +CE
1R
XC6217C232NR
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 2.3V±2%, 200mA, +CE
1R
XC6223B3219R-G
Torex Semiconductor
USPQ-4B03
Linear voltage regulator IC
LDO, 3.2V±1%, 300mA, +CE, CL
1R
XC6229D37B1R-G
Torex Semiconductor
BGA-4
Linear voltage regulator IC
LDO, 3.75V±1%, 300mA, +CE
1R0
XC6102E531MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.1V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R1
XC6102E532MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.2V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R2
XC6102E533MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.3V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R3
XC6102E534MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.4V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R4
XC6102E535MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.5V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R5
XC6102E536MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.6V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R6
XC6102E537MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.7V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R7
XC6102E538MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.8V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R8
CMSZ5265B
Central Semiconductor
SOT-323
Zener diode
62V±5%, 2.0mA, Zzt=185, 275mW
1R8
XC6102E539MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.9V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1R9
XC6102E540MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.0V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RA
XC6102E541MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.1V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RB
XC6102E542MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.2V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RC
CMST5087
Central Semiconductor
SOT-323
PNP transistor
GP, 50V, 50mA, 275mW, B=250..800, 40MHz
1RC
CMST5089
Central Semiconductor
SOT-323
NPN transistor
GP, 30V, 50mA, 275mW, B=400..1200, 50MHz
1RC
XC6102E543MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.3V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RD
XC6102E544MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.4V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RE
XC6102E545MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.5V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RF
XC6102E516MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.6V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RF
XC6102E546MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.6V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RH
XC6102E517MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.7V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RH
XC6102E547MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.7V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RK
XC6102E518MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.8V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RK
XC6102E548MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.8V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RL
XC6102E519MR
Torex Semiconductor
SOT-25
Voltage detector IC
1.9V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RL
XC6102E549MR
Torex Semiconductor
SOT-25
Voltage detector IC
4.9V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RM
XC6102E520MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.0V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RM
XC6102E550MR
Torex Semiconductor
SOT-25
Voltage detector IC
5.0V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RN
XC6102E521MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.1V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RP
XC6102E522MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.2V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RQ
2SB1585-Q
Panasonic
SOT-416
PNP transistor
Lo-sat, 15V, 500mA, 130MHz, B=85..170
1RR
2SB1585-R
Panasonic
SOT-416
PNP transistor
Lo-sat, 15V, 500mA, 130MHz, B=120..240
1RR
2SB970-R
Panasonic
SC-59
PNP transistor
AF, 15V, 500mA, 200mW, B=130..220, 130MHz
1RR
XC6102E523MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.3V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RS
2SB1585-S
Panasonic
SOT-416
PNP transistor
Lo-sat, 15V, 500mA, 130MHz, B=170..340
1RS
2SB970-S
Panasonic
SC-59
PNP transistor
AF, 15V, 500mA, 200mW, B=180..350, 130MHz
1RS
XC6102E524MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.4V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RT
XC6102E525MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.5V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RU
XC6102E526MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.6V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RV
XC6102E527MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.7V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RX
XC6102E528MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.8V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RY
XC6102E529MR
Torex Semiconductor
SOT-25
Voltage detector IC
2.9V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms
1RZ
XC6102E530MR
Torex Semiconductor
SOT-25
Voltage detector IC
3.0V±2%, Hst, -MR, -Reset ODO, Wt=400ms, Rt=200ms