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Rochester Electronics

📍 Newburyport, Massachusetts, USA📅 Est. 1981🔗 Official Site →

Rochester Electronics is the world's largest authorized distributor of end-of-life (EOL) semiconductors, providing a continuous source of supply for critical applications. Rochester is authorized by over 70 semiconductor manufacturers to continue the supply of their discontinued products with full manufacturer quality and traceability.

106,490
Total Parts
75,392
In Stock
101
Categories
75,398
Active
30,906
EOL/Obsolete

Key Product Lines

End-of-Life SemiconductorsObsolete ComponentsLicensed ManufacturingLong-Term SupplyDrop-In ReplacementsMilitary/Aerospace Grade

✅ Why Source Rochester Electronics from FPGACenter

Rochester Electronics authorized parts available through FPGACenter. Military and aerospace obsolete components with full traceability.

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Rochester Electronics Product Categories

Microcontrollers (MCU) (9283)Op Amps & Instrumentation Amplifiers (6708)Specialized ICs (6550)Buffers, Drivers, Receivers & Transceivers (6085)Gates & Inverters (5995)Linear Regulators (LDO) (5541)Drivers, Receivers & Transceivers (5534)SRAM (4418)Supervisors & Reset ICs (4368)ADC - Analog to Digital Converters (3457)Signal Switches, MUX & Decoders (3324)DAC - Digital to Analog Converters (2917)Flip-Flops (2474)Analog Switches & Multiplexers (2152)DC-DC Switching Controllers (1924)DC-DC Switching Regulators (1829)Clock Generators, PLLs & Synthesizers (1550)DSP - Digital Signal Processors (1474)Voltage References (1430)Counters & Dividers (1410)Microprocessors (MPU) (1145)EEPROM (1096)Shift Registers (1011)Specialized Power Management (1007)General Memory ICs (993)Digital Potentiometers (984)Audio Amplifiers (948)Gate Drivers (899)Latches (899)FPGAs (783)Telecom ICs (779)FIFO Memory (747)Power Distribution Switches (653)Interface Controllers (651)Analog Comparators (636)PLDs - Programmable Logic Devices (604)Linear Regulator Controllers (581)AC-DC Converters & Offline Switchers (574)Special Purpose ICs (570)ADC/DAC - Special Purpose (555)CPLDs (540)LED Drivers (540)Motor Drivers & Controllers (534)Flash Memory (476)Translators & Level Shifters (467)Specialty Logic (448)Video Processing ICs (414)Clock Buffers & Drivers (407)Delay Lines (389)Battery Management ICs (372)Audio Special Purpose ICs (370)Video Amplifiers (365)Logic Comparators (306)Analog Switches - Special Purpose (301)Hot Swap Controllers (270)Display Drivers (268)Audio CODECs (251)Encoders, Decoders & Converters (245)Battery Chargers (243)Special Purpose Amplifiers (228)Real-Time Clocks (RTC) (218)UARTs (217)Programmable Timers & Oscillators (217)Active Filters (213)Multivibrators (207)PFC Controllers (194)Power Supply Controllers & Monitors (193)Full & Half-Bridge Drivers (178)Analog Multipliers & Dividers (177)I/O Expanders (175)ROM & NVRAM (171)Parity Generators & Checkers (170)Serializers & Deserializers (164)Sensor & Detector Interfaces (160)Application Specific Processors (155)Linear & Switching Controllers (142)Analog Front End (AFE) (135)Modems (128)Universal Bus Functions (121)EPROM (107)Lighting & Ballast Controllers (103)Thermal Management ICs (102)Signal Terminators (96)System On Chip (SoC) (91)Current Regulation & Management (84)Energy Metering ICs (72)RMS to DC Converters (60)Configuration PROMs for FPGAs (52)Touch Screen Controllers (51)Capacitive Touch Sensors (51)FRAM & MRAM (50)Laser Drivers (48)Signal Buffers, Repeaters & Splitters (47)PoE Controllers (39)V/F and F/V Converters (35)Direct Digital Synthesis (DDS) (32)DRAM & SDRAM (27)OR Controllers & Ideal Diodes (24)MCU, MPU & FPGA Modules (5)Voice Record & Playback (5)Interface Modules (2)

All Rochester Electronics Products

Page 4324 of 5325
Part NumberCategoryDescriptionPackageStockPriceStatus
QS74FCT191ATS0XCounters & DividersThe QS74FCT191ATS0X is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191ATS0X is currently in active production through Rochester Electronics's standard distribution channels.6,000 In Stock$1.38ACTIVERFQ
QS74FCT191ATS1Counters & DividersThe QS74FCT191ATS1 is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191ATS1 is currently in active production through Rochester Electronics's standard distribution channels.10,077 In Stock$1.44ACTIVERFQ
QS74FCT191ATSISpecialized ICsThe QS74FCT191ATSI is a specialized telecom IC manufactured by Rochester Electronics. Design review should confirm SPI, I2C, UART, CAN bus, USB, or Ethernet interface requirements, signal integrity, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for industrial automation, consumer electronics, and telecommunications infrastructure applications, the QS74FCT191ATSI is currently in active production through Rochester Electronics's standard distribution channels.1,613 In Stock$1.35ACTIVERFQ
QS74FCT191ATSOCounters & DividersThe QS74FCT191ATSO is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191ATSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.16OBSOLETERFQ
QS74FCT191CTSICounters & DividersThe QS74FCT191CTSI is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191CTSI is currently in active production through Rochester Electronics's standard distribution channels.9,855 In Stock$1.68ACTIVERFQ
QS74FCT191CTSOCounters & DividersThe QS74FCT191CTSO is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191CTSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$2.06OBSOLETERFQ
QS74FCT191TS1XCounters & DividersThe QS74FCT191TS1X is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191TS1X is currently in active production through Rochester Electronics's standard distribution channels.15,000 In Stock$1.54ACTIVERFQ
QS74FCT191TSICounters & DividersThe QS74FCT191TSI is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191TSI is currently in active production through Rochester Electronics's standard distribution channels.1,732 In Stock$9.47ACTIVERFQ
QS74FCT191TSOCounters & DividersThe QS74FCT191TSO is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT191TSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.41OBSOLETERFQ
QS74FCT193ATPCounters & DividersThe QS74FCT193ATP is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193ATP is currently in active production through Rochester Electronics's standard distribution channels.14,700 In Stock$1.16ACTIVERFQ
QS74FCT193ATQCounters & DividersThe QS74FCT193ATQ is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193ATQ is currently in active production through Rochester Electronics's standard distribution channels.6,029 In Stock$1.67ACTIVERFQ
QS74FCT193ATS0Counters & DividersThe QS74FCT193ATS0 is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193ATS0 is currently in active production through Rochester Electronics's standard distribution channels.9,438 In Stock$1.22ACTIVERFQ
QS74FCT193ATS1Counters & DividersThe QS74FCT193ATS1 is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193ATS1 is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.44OBSOLETERFQ
QS74FCT193ATZCounters & DividersThe QS74FCT193ATZ is a counter/divider IC manufactured by Rochester Electronics. Design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits, plus genuine factory-marked silicon, original packaging, and full lot/date code traceability. This - component is supplied in a standard package suitable for both prototyping and production builds. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193ATZ is currently in active production through Rochester Electronics's standard distribution channels.1,605 In Stock$2.74ACTIVERFQ
QS74FCT193TQCounters & DividersThe QS74FCT193TQ is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193TQ is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.58OBSOLETERFQ
QS74FCT193TS1Counters & DividersThe QS74FCT193TS1 is a counter/divider IC manufactured by Rochester Electronics. Technical highlights include 0°C ~ 70°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across 0°C ~ 70°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT193TS1 is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.24OBSOLETERFQ
QS74FCT2151ATS1Signal Switches, MUX & DecodersThe QS74FCT2151ATS1 is a combinational logic IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT2151ATS1 is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$0.7215OBSOLETERFQ
QS74FCT2151ATSOSignal Switches, MUX & DecodersThe QS74FCT2151ATSO is a combinational logic IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT2151ATSO is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.37OBSOLETERFQ
QS74FCT2153ATPSignal Switches, MUX & DecodersThe QS74FCT2153ATP is a combinational logic IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Through Hole component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT2153ATP is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$1.23OBSOLETERFQ
QS74FCT2153ATS1Signal Switches, MUX & DecodersThe QS74FCT2153ATS1 is a combinational logic IC manufactured by Rochester Electronics. Technical highlights include 5V supply voltage and -40°C ~ 85°C operating temperature; design review should confirm logic family, I/O voltage, propagation delay, package fit, and operating temperature limits. This Surface Mount component is supplied in a standard package and is rated for operation across -40°C ~ 85°C. Designed for consumer electronics, industrial control, and telecommunications applications, the QS74FCT2153ATS1 is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.RFQ for sourcing$0.7215OBSOLETERFQ

Frequently Asked Questions

Where can I buy Rochester Electronics electronic components?

FPGACenter lists 106,490 Rochester Electronics part numbers with 75,392 currently in stock. Submit an RFQ for availability, lead time, and pricing.

Can I still get obsolete Rochester Electronics parts?

Yes. FPGACenter specializes in sourcing hard-to-find and obsolete components. We have 30,906 end-of-life/obsolete Rochester Electronics part numbers in our database, many available from verified stock or through our global sourcing network.

What types of Rochester Electronics products does FPGACenter carry?

We list Rochester Electronics products across 101 categories including End-of-Life Semiconductors, Obsolete Components, Licensed Manufacturing, Long-Term Supply. Browse our full catalog or contact our sourcing team for any specific Rochester Electronics part number.

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