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 'K9'

Marking
Name
Manufacturer/Case
Function
K9
1SS348
Toshiba
SC-59
Diode
Schottky, 80V, 0.1A
K9
AP8821N-29GC
Anwell Semiconductor
SOT-23
Voltage detector IC
2.9V±2%, -Reset ODO, Halogen-free
K9
AP8821N-29GI
Anwell Semiconductor
SC-82
Voltage detector IC
2.9V±2%, -Reset ODO, Halogen-free
K9
AP8821N-29GS
Anwell Semiconductor
SC-82S
Voltage detector IC
2.9V±2%, -Reset ODO, Halogen-free
K9
AP8821N-29GT
Anwell Semiconductor
SC-70
Voltage detector IC
2.9V±2%, -Reset ODO, Halogen-free
K9
AP8821N-29PC
Anwell Semiconductor
SOT-23
Voltage detector IC
2.9V±2%, -Reset ODO
K9
AP8821N-29PI
Anwell Semiconductor
SC-82
Voltage detector IC
2.9V±2%, -Reset ODO
K9
AP8821N-29PS
Anwell Semiconductor
SC-82S
Voltage detector IC
2.9V±2%, -Reset ODO
K9
AP8821N-29PT
Anwell Semiconductor
SC-70
Voltage detector IC
2.9V±2%, -Reset ODO
K9
BB199
Philips
SOD-523
Capacitance diode
VCO, 20V, 100mA, 300mW, 13.8..42.5pF(2..0.5V)
K9
BCV72R
Philips
SOT-23
NPN transistor
AF, Sw, 80V, 100mA, 250mW, >100MHz, B=200..450
k9
BD46E231G-M
Rohm
SSOP-5
Voltage detector IC
2.3V±1%, -MR, -Reset PPO, Td=100ms
K9
BZD27C22P
Luguang Electronic Technology
SOD-123FL
Transient voltage supressor
Vbr=20.8V, Vcl=31V, 4.8A, 150W(1ms)
K9
BZX384-B5V1
NXP Semiconductors
SOD-323
Zener diode
5.1V±2.5%, Izt=5mA, Zzt=40, 200mW
K9
BZX84C20
Luguang Electronic Technology
SOT-23
Zener diode
18.8..21.2V, Zzt=55, Izt=5mA, 225mW
K9
ELM7649HAB
ELM Technology
SOT-23
Voltage detector IC
4.9V±2%, +Reset PPO, 250ms
K9
ELM89393B
ELM Technology
SOT-25
Linear voltage regulator IC
LDO, 3.9V±2%, 300mA, +CE
K9
MM1Z5249B
EIC Semiconductor
SOD-323FL
Zener diode
18.05..19.95V, Izt=6.6mA, Zzt=23, 500mW
K9
MM1Z5249BH
Zowie Technology
SOD-123
Zener diode
18.05..19.95V, Izt=6.6mA, Zzt=23, 500mW
K9
MMSZ5249B
EIC Semiconductor
SOD-123
Zener diode
19V±5%, Izt=6.6mA, Zzt=23, 500mW
K9
MMSZ5254B-V-G
Vishay Semiconductor
SOD-123
Zener diode
27V±5%, Izt=4.6mA, Zzt=41, 500mW
K9
PZU6.8B2L
Philips
SOT-882
Zener diode
6.8V±2%, If=200mA, 250mW
K9
R1111N191B
Ricoh
SOT-23-5
Linear voltage regulator IC
LDO, Low noise, 1.9V±2%, 200mA, +CE
K9
R3111N292C
Ricoh
SOT-23
Voltage detector IC
2.9V±2%, -Reset ODO
K9
R3111Q091A
Ricoh
SC-82AB
Voltage detector IC
0.9V±2%, -Reset PPO
K9
R5426D108CA
Ricoh
SON-6
Battery Management IC
Li-Ion, over-charge/discharge protection, Vc/d=1.08V
K9
R5426N108CA
Ricoh
SOT-23-6
Battery Management IC
Li-Ion, over-charge/discharge protection, Vc/d=1.08V
K9
RN2970FS
Toshiba
FS6
PNP transistor
Dual, Sw, 20V, 50mA, 50mW, R1=4.7k
K9
RN5RG39AA
Ricoh
SOT-23-5
Linear voltage regulator IC
Ext. transistor, 3.9V±2.5% 1A*
K9
RN5RY291A
Ricoh
SOT-23-5
DC/DC voltage converter IC
VFM step-up, 2.9V±2.5%, 150mW, <180kHz
K9
RP103Q291D5
Ricoh
SC-82AB
Linear voltage regulator IC
LDO, 2.9V±1%, 150mA, +CE, CL
K9
RT9167A-24CBR
Richtek Technology
SOT-23-5
Linear voltage regulator IC
LDO, 2.4V±2%, 600mA, +CE
K9
SSM05100SPT
Chenmko Enterprise
SOD-123
Diode
SBR, 100V, 500mA, Vf<0.57V(500mA)
K9
TS4999EIJT
SGS-Thomson Microelectronics
BGA-18
Linear IC
AF PA, BTL, 2.7..5.5V, 2x1W(5V/8), shutdown
K9
XC61CN0902N
Torex Semiconductor
SSOT-24
Voltage detector IC
0.9V±2%, +Reset ODO
K9
XC6223E191NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.9V±20mV, 300mA, +CE, ICP
K9
XC6225B172NR-G
Torex Semiconductor
SSOT-24
Linear voltage regulator IC
LDO, 1.7V±2%, 30mA, +CE, CL
K9
XC6GN0902HR
Torex Semiconductor
USP-3
Voltage detector IC
0.9V±2%, +Reset ODO
K9-
RT9819A-36PVL
Richtek Technology
SOT-23
Voltage detector IC
3.6V±1.5%, -Reset PPO
K909
TS4909IQT
SGS-Thomson Microelectronics
DFN-10
Linear IC
AF PA, 2.5..5.5V, 2x120mW(16), shutdown
K91
BCF81R
Philips
SOT-23
NPN transistor
GP, AF, 50V, 200mA, 250mW, B=420..80, >100MHz
K93
XC61CN0902M
Torex Semiconductor
SOT-23
Voltage detector IC
0.9V±2%, +Reset ODO
K93
XC61CN0902P
Torex Semiconductor
SOT-89
Voltage detector IC
0.9V±2%, +Reset ODO
K93
XC61GN0902HR
Torex Semiconductor
USP-3
Voltage detector IC
0.9V±2%, +Reset ODO
K962
TS4962IQT
SGS-Thomson Microelectronics
DFN-8
Linear IC
AF PA, BTL, class-D, 2.4..5.5V, 2.4W(5V/4), shutdown
K982
TS4982IQT
SGS-Thomson Microelectronics
QFN-32
Linear IC
AF PA, BTL, 2.7..5.5V, 2x2W(4)+2x125mW(16), shutdown
K984
TS4984IQT
SGS-Thomson Microelectronics
QFN-16
Linear IC
AF PA, BTL, 2.5..5.5V, 2x1W(5V/8), shutdown
K990
TS4990IQT
SGS-Thomson Microelectronics
DFN-8
Linear IC
AF PA, BTL, 2.5..5.5V, 1.2W(5V/8), shutdown
K990
TS4990IST
SGS-Thomson Microelectronics
SSOP-8
Linear IC
AF PA, BTL, 2.5..5.5V, 1.2W(5V/8), shutdown
K994
TS4994IQT
SGS-Thomson Microelectronics
DFN-10
Linear IC
AF PA, BTL, 2.5..5.5V, 1.2W(5V/8), select shutdown
K994
TS4994IST
SGS-Thomson Microelectronics
SSOP-10
Linear IC
AF PA, BTL, 2.5..5.5V, 1.2W(5V/8), select shutdown
K9A
MMBZ5V6AL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=3.0V, Vbr=5.32..5.88V, 3.0A, 24W(1ms)
K9A
XC6108N09AGR
Torex Semiconductor
USP-4
Voltage detector IC
0.9V±2%, Hysteresis, -Reset ODO
K9A
XC6108N09AMR
Torex Semiconductor
SOT-25
Voltage detector IC
0.9V±2%, Hysteresis, -Reset ODO
K9B
XC6108N09BGR
Torex Semiconductor
USP-4
Voltage detector IC
0.9V±2%, -Reset ODO
K9B
XC6108N09BMR
Torex Semiconductor
SOT-25
Voltage detector IC
0.9V±2%, -Reset ODO
K9C
MMBZ6V8AL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=4.5V, Vbr=6.46..7.14V, 2.5A, 24W(1ms)
K9C
XC6108N09CGR
Torex Semiconductor
USP-4
Voltage detector IC
0.9V±2%, Hysteresis, -Reset ODO
K9C
XC6108N09CMR
Torex Semiconductor
SOT-25
Voltage detector IC
0.9V±2%, Hysteresis, -Reset ODO
K9D
MMBZ9V1AL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=6.0V, Vbr=8.65..9.56V, 1.7A, 24W(1ms)
K9D
XC6108N09DGR
Torex Semiconductor
USP-4
Voltage detector IC
0.9V±2%, -Reset ODO
K9D
XC6108N09DMR
Torex Semiconductor
SOT-25
Voltage detector IC
0.9V±2%, -Reset ODO
K9E
MMBZ10VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=6.5V, Vbr=9.50..10.5V, 1.7A, 24W(1ms)
K9K
MMBZ15VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=12V, Vbr=14.25..15.75V, 1.9A, 40W(1ms)
K9L
MMBZ18VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=14.5V, Vbr=17.10..18.90V, 1.6A, 40W(1ms)
K9N
MMBZ20VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=17V, Vbr=19.0..21.0V, 1.4A, 40W(1ms)
K9p
BCF81
Philips
SOT-23
NPN transistor
GP, AF, 50V, 200mA, 250mW, B=420..80, >100MHz
K9Q
MMBZ27VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=22V, Vbr=25.65..28.35V, 1.0A, 40W(1ms)
K9T
MMBZ33VAL
Diodes
SOT-23
Transient voltage supressor
Dual, Vrwm=26V, Vbr=31.35..34.65V, 0.87A, 40W(1ms)