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 'JK'

Marking
Name
Manufacturer/Case
Function
JK
AP1115AY-35
Anachip
SOT-89
Linear voltage regulator IC
LDO, 3.5V±2%, 600mA
JK
AP1115BY-35
Anachip
SOT-89
Linear voltage regulator IC
LDO, 3.5V±2%, 600mA
JK
AP1119-90
Anachip
SOT-89-5
Linear voltage regulator IC
LDO, 9V±2%, 500mA, -CE
JK
BU4842F
Rohm
SOP-4
Voltage detector IC
4.2V±1%, -Reset ODO
JK
BU4842FP3
Rohm
SOT-89
Voltage detector IC
4.2V±1%, -Reset ODO
JK
BU4842FWE
Rohm
VSOF-5
Voltage detector IC
4.2V±1%, -Reset ODO
JK
BU4842G
Rohm
SSOP-5
Voltage detector IC
4.2V±1%, -Reset ODO
JK
BZT52B43WT
TAITRON Components
SOD-523
Zener diode
42.14..43.86V, Izt=2.5mA, 200mW
JK
BZX84C3V0CC
JinYu semiconductor
SOT-23
Zener diode
DuaL, 2.8..3.2V, Zzt=95 , Izt=5mA, 350mW
JK
CD214A-T30A
Bourns
DO-214AC
Transient voltage supressor
Vrwm=30V, Irsm=8.3A, 400W(1ms)
JK
CH331H-10PT
Chenmko Enterprise
SOD-323
Diode
SBD, 10V, 3A, Vf<0.6V(1A)
JK
DZ23C3V0
Luguang Electronic Technology
SOT-23
Zener diode
Dual, 2.8..3.2V, Izt=5mA, Zzt=80 , 300mW
JK
ELM7350CAC
ELM Technology
SC-82AB
Voltage detector IC
5.0V+1.2%, -Reset PPO
JK
ELM7350CBC
ELM Technology
SC-70-5
Voltage detector IC
5.0V±1.2%, -Reset PPO, -MR
JK
ELM7619HDB
ELM Technology
SOT-23
Voltage detector IC
1.9V±2%,+Reset PPO, 50ms
JK
ELM99592B
ELM Technology
SOT-89-5
Linear voltage regulator IC
LDO, 5.9V±2%, 300mA, -CE
JK
KRA730E
Korea Electronics
TES6
PNP transistor
Dual, Sw, 50V, 100mA, 200mW, R1=4.7k
JK
KRA730U
Korea Electronics
US6
PNP transistor
Dual, Sw, 50V, 100mA, 200mW, R1=4.7k
JK
KRC660F
Korea Electronics
TFSV
NPN transistor
Dual, Sw, 20V, 50mA, 50mW, R1=4.7k
JK
LT4ME30A
Lite-On Semiconductor
DO-219
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, Ipp=8.3A, 400W(1ms)
JK
MAX6315US37D4-T
Maxim Integrated Products
SOT-143
Voltage detector IC
3.7V±1.8%, -MR, -Reset ODO, 1120ms
JK
MM5ZB43H
Zowie Technology
SOD-523
Zener diode
42.14..43.86V, Zzt=130, Izt=2mA, 200mW
JK
MMBZ5252BW
JinYu semiconductor
SOT-323
Zener diode
24V±5%, Izt=5.2mA, Zzt=33 , 200mW
JK
P2SMSJ30A
Yeashin
SOD-123S
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, Ipp=4.1A, 200W(1ms)
JK
P4SMAFJ30A
PanJIT Semiconductor
SMA-F
Transient voltage supressor
Vrwm=30V, Vbr=33.3..38.3V, Ipp=8.3A, 400W(1ms)
JK
P4SMAJ30A
PanJIT Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..38.3V, Ipp=8.3A, 400W(1ms)
JK
P4SMAJ30A
Shanghai Lunsure Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, Ipp=8.3A, 400W(1ms)
JK
P4SMAJ30A
Won-Top Electronics
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..38.3V, Ipp=8.3A, 400W(1ms)
JK
R1114Q191A
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, Low noise, 1.9V±2%, 150mA, -CE
JK
R3116K401A
Ricoh
DFN1010-4
Voltage detector IC
4.0V±0.8%, -Reset ODO
JK
RL52Z43
Ruilong Yuan Electronics
SOD-523
Zener diode
42.14..43.86V, Zzt=130, Izt=2mA, 200mW
JK
RP107K191B
Ricoh
DFN1212-6
Linear voltage regulator IC
LDO, 1.9V±1%, 200mA, +CE
JK
RP130Q491B
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, Low noise, +CE, 4.9V±1%, 150mA
JK
RP154N010A
Ricoh
SOT-23-6
Linear voltage regulator IC
LDO, Dual out, Vout1/Vout2=3.0V/1.8V±1%, 300mA, +CE
JK
RT9166-15CXL
Richtek Technology
SOT-89
Linear voltage regulator IC
LDO, 1.5V±2%, 300mA
JK
RT9167A-34CB
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 3.4V±2%, 600mA, +CE
JK
SMAJ30A
Ruilong Yuan Electronics
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, 8.3A, 400W(1ms)
JK
SMAJ30A
Diodes
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, 8.3A, 400W(1ms)
JK
SMAJ30A
Leimao Electronic Technology
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, 8.3A, 400W(1ms)
JK
SMAJ30A
Lite-On Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=30.0V, Vbr=33.3..36.8V, Ipp=8.3A, 400W(1ms)
JK
SMAJ30AG
First Semiconductor
DO-214AC
Transient voltage supressor
Vrwm=30V, Vbr=33.3..38.3V, Ipp=8.3A, 400W(1ms)
JK
SMBJ6.0A
Fagor Electronica
DO-214AA
Transient voltage supressor
Vrm=6.0V, Vbr=6.67..7.37V, Ipp=58.3A, 600W
JK
SMF30A
PanJIT Semiconductor
SOD-123FL
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, Ipp=4.1A, 200W(1ms)
JK
TC7SB385FU
Toshiba
SOT-353
CMOS logic IC
Single-pole single-throw analog switch
JK
TPSMB11ATG
Fagor Electronica
DO-214AA
Transient voltage supressor
Vrm=9.40V, Vbr=10.5..11.6V, Ipp=38A, 600W(1ms)
JK
TV02W300-G
Comchip Technology
SOD-123
Transient voltage supressor
Vrwm=30V, Vbr=33.3..36.8V, Ipp=4.13A, 200W(1ms)
JK
UM1550DB-18
Union Semiconductor
DFN4-1.0x1.0
Linear voltage regulator IC
LDO, 1.8V±2%, 200mA
JK-
RT9166-15PXL
Richtek Technology
SOT-89
Linear voltage regulator IC
LDO, 1.5V±2%, 300mA
JK-
RT9819A-33PV
Richtek Technology
SOT-23
Voltage detector IC
3.3V±1.5%, -Reset PPO
JK1
CHDTA123JKPT
Chenmko Enterprise
SOT-23
PNP transistor
Sw, 50V, 100mA, 250MHz, R1/R2=2.2k/47k
JK2
CHDTB122JKPT
Chenmko Enterprise
SOT-23
PNP transistor
Sw, 50V, 500mA, 200MHz, R1/R2=220R/4.7k
JK2
S-80141CNMC-JK2-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.1V±2%, -Reset ODO, Td=200ms
JK2
S-80141CNPF-JK2-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.1V±2%, -Reset ODO, Td=200ms
JK3
S-80142CNMC-JK3-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.2V±2%, -Reset ODO, Td=200ms
JK3
S-80142CNPF-JK3-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.2V±2%, -Reset ODO, Td=200ms
JK4
S-80143CNMC-JK4-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.3V±2%, -Reset ODO, Td=200ms
JK4
S-80143CNPF-JK4-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.3V±2%, -Reset ODO, Td=200ms
JK5
S-80144CNMC-JK5-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.4V±2%, -Reset ODO, Td=200ms
JK5
S-80144CNPF-JK5-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.4V±2%, -Reset ODO, Td=200ms
JK6
S-80145CNMC-JK6-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.5V±2%, -Reset ODO, Td=200ms
JK6
S-80145CNPF-JK6-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.5V±2%, -Reset ODO, Td=200ms
JK7
S-80146CNMC-JK7-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.6V±2%, -Reset ODO, Td=200ms
JK7
S-80146CNPF-JK7-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.6V±2%, -Reset ODO, Td=200ms
JK8
S-80147CNMC-JK8-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.7V±2%, -Reset ODO, Td=200ms
JK8
S-80147CNPF-JK8-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.7V±2%, -Reset ODO, Td=200ms
JK9
S-80148CNMC-JK9-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.8V±2%, -Reset ODO, Td=200ms
JK9
S-80148CNPF-JK9-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.8V±2%, -Reset ODO, Td=200ms
JKA
CHDTC123JKPT
Chenmko Enterprise
SOT-23
NPN transistor
Sw, 50V, 100mA, 250MHz, R1/R2=2.2k/47k
JKB
CHDTD122JKPT
Chenmko Enterprise
SOT-23
NPN transistor
Sw, 50V, 500mA, 250MHz, R1/R2=220R/4.7k
JKH
S-80122CNMC-JKH-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.2V±2%, -Reset ODO, Td=200ms
JKH
S-80122CNPF-JKH-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.2V±2%, -Reset ODO, Td=200ms
JKI
S-80123CNMC-JKI-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.3V±2%, -Reset ODO, Td=200ms
JKI
S-80123CNPF-JKI-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.3V±2%, -Reset ODO, Td=200ms
JKJ
S-80124CNMC-JKJ-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.4V±2%, -Reset ODO, Td=200ms
JKJ
S-80124CNPF-JKJ-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.4V±2%, -Reset ODO, Td=200ms
JKK
S-80125CNMC-JKK-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.5V±2%, -Reset ODO, Td=200ms
JKK
S-80125CNPF-JKK-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.5V±2%, -Reset ODO, Td=200ms
JKL
S-80126CNMC-JKL-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.6V±2%, -Reset ODO, Td=200ms
JKL
S-80126CNPF-JKL-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.6V±2%, -Reset ODO, Td=200ms
JKM
S-80127CNMC-JKM-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.7V±2%, -Reset ODO, Td=200ms
JKM
S-80127CNPF-JKM-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.7V±2%, -Reset ODO, Td=200ms
JKN
S-80128CNMC-JKN-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.8V±2%, -Reset ODO, Td=200ms
JKN
S-80128CNPF-JKN-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.8V±2%, -Reset ODO, Td=200ms
JKO
S-80129CNMC-JKO-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
2.9V±2%, -Reset ODO, Td=200ms
JKO
S-80129CNPF-JKO-T2
Seiko Instruments
SNT-4
Voltage detector IC
2.9V±2%, -Reset ODO, Td=200ms
JKP
S-80130CNMC-JKP-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.0V±2%, -Reset ODO, Td=200ms
JKP
S-80130CNPF-JKP-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.0V±2%, -Reset ODO, Td=200ms
JKQ
S-80131CNMC-JKQ-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.1V±2%, -Reset ODO, Td=200ms
JKQ
S-80131CNPF-JKQ-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.1V±2%, -Reset ODO, Td=200ms
JKR
S-80132CNMC-JKR-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.2V±2%, -Reset ODO, Td=200ms
JKR
S-80132CNPF-JKR-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.2V±2%, -Reset ODO, Td=200ms
JKS
S-80133CNMC-JKS-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.3V±2%, -Reset ODO, Td=200ms
JKS
S-80133CNPF-JKS-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.3V±2%, -Reset ODO, Td=200ms
JKT
S-80134CNMC-JKT-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.4V±2%, -Reset ODO, Td=200ms
JKT
S-80134CNPF-JKT-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.4V±2%, -Reset ODO, Td=200ms
JKU
S-80135CNMC-JKU-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.5V±2%, -Reset ODO, Td=200ms
JKU
S-80135CNPF-JKU-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.5V±2%, -Reset ODO, Td=200ms
JKV
S-80136CNMC-JKV-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.6V±2%, -Reset ODO, Td=200ms
JKV
S-80136CNPF-JKV-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.6V±2%, -Reset ODO, Td=200ms
JKW
S-80137CNMC-JKW-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.7V±2%, -Reset ODO, Td=200ms
JKW
S-80137CNPF-JKW-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.7V±2%, -Reset ODO, Td=200ms
JKX
S-80138CNMC-JKX-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.8V±2%, -Reset ODO, Td=200ms
JKX
S-80138CNPF-JKX-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.8V±2%, -Reset ODO, Td=200ms
JKY
S-80139CNMC-JKY-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
3.9V±2%, -Reset ODO, Td=200ms
JKY
S-80139CNPF-JKY-T2
Seiko Instruments
SNT-4
Voltage detector IC
3.9V±2%, -Reset ODO, Td=200ms
JKZ
S-80140CNMC-JKZ-T2
Seiko Instruments
SOT-23-5
Voltage detector IC
4.0V±2%, -Reset ODO, Td=200ms
JKZ
S-80140CNPF-JKZ-T2
Seiko Instruments
SNT-4
Voltage detector IC
4.0V±2%, -Reset ODO, Td=200ms