Catalyst Semiconductor part numbers

Catalyst Semiconductor (CAT24/CAT25 EEPROM, CAT LED drivers and supervisors) was acquired by ON Semiconductor (now onsemi) in 2008.

Catalyst Semiconductor is now onsemi (2008). We quote Catalyst Semiconductor parts — current, obsolete and end-of-life — and parts that carry older Catalyst Semiconductor markings. See also all onsemi part numbers.

644 Catalyst Semiconductor heritage part numbers

Part-number families from Catalyst Semiconductor, listed under their current manufacturer.

Part numberManufacturerTypePackageKey specs
CAT5171TBI-00GT3 onsemi Digital Potentiometers SOT-23-8 I2C2.7V~5.5V
CAT5171TBI-50GT3 onsemi Digital Potentiometers SOT-23-8 I2C2.7V~5.5V
CAT5172TBI-00GT3 onsemi Digital Potentiometers SOT-23-8 SPI2.7V~5.5V
CAT5172TBI-50GT3 onsemi Digital Potentiometers SOT-23-8 SPI2.7V~5.5V
CAT5221WI-00-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5221WI-10-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5221WI-25-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5221WI-50-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5221YI-00 Catalyst Semiconductor Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5221YI-00-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5221YI-10-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5221YI-25-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5221YI-50-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT522L Catalyst Semiconductor Digital Potentiometers PDIP-14
CAT523L Catalyst Semiconductor Digital Potentiometers SOIC-14 Serial2.7V~5.5V
CAT5241WI-00 Catalyst Semiconductor Digital Potentiometers SOIC-20
CAT5241WI-00-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5241WI-10-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5241WI-25-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5241WI-50-T1 onsemi Digital Potentiometers SOIC-20-300mil I2C2.5V~6V
CAT5241YI-00-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5241YI-10-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5241YI-25-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5241YI-50-T2 onsemi Digital Potentiometers TSSOP-20 I2C2.5V~6V
CAT5251YI-00-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5251YI-50-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5259WI-50 onsemi Digital Potentiometers SOIC-24 I2C2.5V~6V
CAT5259WI-50-26645 onsemi Digital Potentiometers SOIC-24 I2C2.5V~6V
CAT5259YI-00-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5259YI-50-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5261WI-00 Catalyst Semiconductor Digital Potentiometers SOIC-24
CAT5261YI-00 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5261YI-00-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5261YI-50-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5401YI-00-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5401YI-10 Catalyst Semiconductor Digital Potentiometers TSSOP-24
CAT5401YI-10 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5401YI-10-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5401YI-25-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5401YI-50-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5409YI-00-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5409YI-10-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5409YI-25-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5409YI-50-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5411YI-00-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5411YI-10-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5411YI-25-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5411YI-50-T2 onsemi Digital Potentiometers TSSOP-24 SPI2.5V~6V
CAT5419WI-00 Catalyst Semiconductor Digital Potentiometers SOIC-24 I2C2.5V~6V
CAT5419WI-10 onsemi Digital Potentiometers SOIC-24 I2C2.5V~6V
CAT5419WI-10-TE13 Catalyst Semiconductor Digital Potentiometers SOIC-24
CAT5419WI-50 Catalyst Semiconductor Digital Potentiometers SOIC-24
CAT5419YI-00-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5419YI-10-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5419YI-25-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT5419YI-50-T2 onsemi Digital Potentiometers TSSOP-24 I2C2.5V~6V
CAT6201VP2-GT3 onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TDFN-8(2x3) 300mA1.25V~12.5V
CAT6219-330TDGT3 onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TSOT-23-5 500mA3.3V
CAT6219ADJTD-GT3 onsemi Voltage Regulators - Linear, Low Drop Out (LDO) Regulators TSOT-23-5 500mA1.25V~5V
CAT64LC40LI-G onsemi EEPROM PDIP-8 4KbitSPI

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Frequently asked questions

Is Catalyst Semiconductor still in business?

Catalyst Semiconductor (CAT24/CAT25 EEPROM, CAT LED drivers and supervisors) was acquired by ON Semiconductor (now onsemi) in 2008.

Can I still buy Catalyst Semiconductor parts?

Yes. PartnerSemi quotes Catalyst Semiconductor part numbers, including obsolete and end-of-life parts and parts with old Catalyst Semiconductor markings. Send the part number and quantity; we reply with price, lead time, date code and origin. We are an independent distributor, not an authorized Catalyst Semiconductor or onsemi distributor.

PartnerSemi is not affiliated with Catalyst Semiconductor or onsemi. Brand names are used to identify parts only.