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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

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Part NumberCategoryDescriptionPackageStockPriceStatus
CS5120KDR16-CHSMicrocontrollers (MCU)The CS5120KDR16-CHS is a microcontroller manufactured by Rochester Electronics. Design review should confirm GPIO, SPI, I2C, UART, ADC peripherals, clock speed, Flash memory, 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 IoT endpoints, consumer electronics, and industrial automation applications, the CS5120KDR16-CHS is currently in active production through Rochester Electronics's standard distribution channels.1,099 In StockRFQACTIVERFQ
CS5121KD16Specialized Power ManagementThe CS5121KD16 is a specialized power management IC manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 automotive electronics, industrial automation, and telecommunications equipment applications, the CS5121KD16 is currently in active production through Rochester Electronics's standard distribution channels.7,677 In Stock$1.25ACTIVERFQ
CS51220ED16DC-DC Switching ControllersThe CS51220ED16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS51220ED16 is currently in active production through Rochester Electronics's standard distribution channels.14,112 In Stock$1.45ACTIVERFQ
CS51221ED16DC-DC Switching ControllersThe CS51221ED16 is a DC-DC switching controller manufactured by Rochester Electronics. Technical highlights include -40°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal operating temperature limits. This Surface Mount component is supplied in a 16-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the CS51221ED16 is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.16-SOIC (0.154", 3.90mm Width)RFQ for sourcing$6.17OBSOLETERFQ
CS51221ED16GDC-DC Switching ControllersThe CS51221ED16G is a DC-DC switching controller manufactured by Rochester Electronics. Technical highlights include -40°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal operating temperature limits. This Surface Mount component is supplied in a 16-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the CS51221ED16G is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.16-SOIC (0.154", 3.90mm Width)RFQ for sourcing$1.13OBSOLETERFQ
CS51221EDTB16GDC-DC Switching ControllersThe CS51221EDTB16G is a DC-DC switching controller manufactured by Rochester Electronics. Technical highlights include -40°C ~ 85°C (TA) operating temperature; design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal operating temperature limits. This Surface Mount component is supplied in a 16-TSSOP (0.173", 4.40mm Width) package and is rated for operation across -40°C ~ 85°C (TA). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the CS51221EDTB16G is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.16-TSSOP (0.173", 4.40mm Width)RFQ for sourcing$1.14OBSOLETERFQ
CS5126-KLADC/DAC - Special PurposeThe CS5126-KL is an application-specific IC manufactured by Rochester Electronics. Technical highlights include ±4.5V ~ 5.5V, ±4.5V ~ 5.5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm supply voltage, interface compatibility, package fit, operating temperature limits, and lot/date code traceability. This Surface Mount component is supplied in a 28-LCC (J-Lead) package and is rated for operation across 0°C ~ 70°C. Designed for power supply design, battery management, and industrial control applications, the CS5126-KL is currently in active production through Rochester Electronics's standard distribution channels.28-LCC (J-Lead)1,599 In Stock$28.25ACTIVERFQ
CS5126-KPADC/DAC - Special PurposeThe CS5126-KP is an application-specific IC manufactured by Rochester Electronics. Technical highlights include ±4.5V ~ 5.5V, ±4.5V ~ 5.5V supply voltage and 0°C ~ 70°C operating temperature; design review should confirm supply voltage, interface compatibility, package fit, operating temperature limits, and lot/date code traceability. This Through Hole component is supplied in a 28-DIP package and is rated for operation across 0°C ~ 70°C. Designed for power supply design, battery management, and industrial control applications, the CS5126-KP is currently in active production through Rochester Electronics's standard distribution channels.28-DIP4,902 In Stock$25.70ACTIVERFQ
CS5127GDW16DC-DC Switching ControllersThe CS5127GDW16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS5127GDW16 is currently in active production through Rochester Electronics's standard distribution channels.13,105 In Stock$0.5558ACTIVERFQ
CS5127GDWR16DC-DC Switching ControllersThe CS5127GDWR16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS5127GDWR16 is currently in active production through Rochester Electronics's standard distribution channels.9,000 In Stock$0.6778ACTIVERFQ
CS5128AFDrivers, Receivers & TransceiversThe CS5128AF is a transceiver 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 motor control, LED lighting, and display backlight applications, the CS5128AF is currently in active production through Rochester Electronics's standard distribution channels.31,748 In Stock$0.4410ACTIVERFQ
CS51311GD14DC-DC Switching ControllersThe CS51311GD14 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS51311GD14 is currently in active production through Rochester Electronics's standard distribution channels.4,620 In Stock$0.4875ACTIVERFQ
CS51313GDR16DC-DC Switching ControllersThe CS51313GDR16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS51313GDR16 is currently in active production through Rochester Electronics's standard distribution channels.3,462 In Stock$0.8532ACTIVERFQ
CS5132HGDWR24DC-DC Switching ControllersThe CS5132HGDWR24 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS5132HGDWR24 is currently in active production through Rochester Electronics's standard distribution channels.6,000 In Stock$0.3413ACTIVERFQ
CS5134AMDrivers, Receivers & TransceiversThe CS5134AM is a transceiver 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 motor control, LED lighting, and display backlight applications, the CS5134AM is currently in active production through Rochester Electronics's standard distribution channels.28,494 In Stock$0.4410ACTIVERFQ
CS5138AADrivers, Receivers & TransceiversThe CS5138AA is a transceiver 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 motor control, LED lighting, and display backlight applications, the CS5138AA is currently in active production through Rochester Electronics's standard distribution channels.52,313 In Stock$0.4410ACTIVERFQ
CS51411GD8GDC-DC Switching RegulatorsThe CS51411GD8G is a DC-DC converter manufactured by Rochester Electronics. Technical highlights include -40°C ~ 150°C (TJ) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 150°C (TJ). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the CS51411GD8G is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.8-SOIC (0.154", 3.90mm Width)RFQ for sourcing$3.10OBSOLETERFQ
CS51413GD8GDC-DC Switching RegulatorsThe CS51413GD8G is a DC-DC converter manufactured by Rochester Electronics. Technical highlights include -40°C ~ 150°C (TJ) operating temperature; design review should confirm input voltage, output voltage, load current, buck or boost topology when applicable, and thermal operating temperature limits. This Surface Mount component is supplied in a 8-SOIC (0.154", 3.90mm Width) package and is rated for operation across -40°C ~ 150°C (TJ). Designed for battery-powered devices, portable electronics, and industrial sensors applications, the CS51413GD8G is no longer produced by Rochester Electronics; FPGACenter maintains verified stock sourced through certified supply chain partners.8-SOIC (0.154", 3.90mm Width)RFQ for sourcingRFQOBSOLETERFQ
CS5150GD16DC-DC Switching ControllersThe CS5150GD16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS5150GD16 is currently in active production through Rochester Electronics's standard distribution channels.7,614 In Stock$0.6338ACTIVERFQ
CS5150GDR16DC-DC Switching ControllersThe CS5150GDR16 is a DC-DC switching controller manufactured by Rochester Electronics. Design review should confirm input voltage, output voltage, load current, LDO, buck, boost, or MOSFET topology when applicable, and thermal 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 battery-powered devices, portable electronics, and industrial sensors applications, the CS5150GDR16 is currently in active production through Rochester Electronics's standard distribution channels.15,000 In Stock$0.6338ACTIVERFQ

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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