SMD Marking Code - W28

W28

Total Parts	8/8
Manufacturers	NXP China, Micrel Inc., Ricoh Co., Ltd, Vishay Semiconductor GmbH, Toko America, Inc.
Functions	Silicon NPN Transistor, Linear Voltage Regulator Integrated Circuit, Silicon PNP Digital Transistor
Cases	MLF-6, SOT-343, SOT-23L-6, SOT-323, SOT-23-5
Pins	28x9, 26tu, 74ub, 16ta, 24tc, 28un, 33up
Description	Sw, 50V, 100mA, 200mW, R1/R2=47k/22k UHF, 10V, 10mA, 80mW, B=30..200, 7GHz VHF/UHF, LN, 15V, 10mA, 80mW, B=50..150, 5GHz LDO, 2.8V±1.5%, 150mA, +CE, CL, AE(Mode) LDO, 2.8V±1.5%, 200mA, -CE LDO, 2.8V±1.5%, 200mA, -CE LDO, 2.8V±1%, 150mA, +CE LDO, 2.8V±1%, 150mA, +CE, Pb-free

SMD Code	A	Part Number	Manufacturer	Case	Pin	Description
W28	-	PDTA144WU	NxC	SOT-323	16ta	Silicon PNP Digital Transistor Sw, 50V, 100mA, 200mW, R1/R2=47k/22k
W28	-	BFP280TRW	Vs	SOT-343	26tu	Silicon NPN Transistor UHF, 10V, 10mA, 80mW, B=30..200, 7GHz
W28	-	BFP280TW	Vs	SOT-343	24tc	Silicon NPN Transistor VHF/UHF, LN, 15V, 10mA, 80mW, B=50..150, 5GHz
W28	-	R1163N281D	Ric	SOT-23-5	28x9	Linear Voltage Regulator Integrated Circuit LDO, 2.8V±1.5%, 150mA, +CE, CL, AE(Mode)
W28	-	TK11128S	Tok	SOT-23-5	28un	Linear Voltage Regulator Integrated Circuit LDO, 2.8V±1.5%, 200mA, -CE
W28	-	TK11128M	Tok	SOT-23L-6	33up	Linear Voltage Regulator Integrated Circuit LDO, 2.8V±1.5%, 200mA, -CE
W28	-	MIC5255-2.8BML	Mcr	MLF-6	74ub	Linear Voltage Regulator Integrated Circuit LDO, 2.8V±1%, 150mA, +CE
W28	mg	MIC5255-2.8YML	Mcr	MLF-6	74ub	Linear Voltage Regulator Integrated Circuit LDO, 2.8V±1%, 150mA, +CE, Pb-free