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Polarized Connectors - Header (4-Pin)
Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the male header. Be sure to order the housing and crimp pins! Pins ha...
Polarized Connectors - Housing (2-Pin)
Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the female housing. Be sure to order the mating header and crimp pins...
Polarized Connectors - Housing (3-Pin)
Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the female housing. Be sure to order the mating header and crimp pi...
Polarized Connectors - Housing (4-Pin)
Polarized connectors and headers for your perf board/PCB projects. Use these connectors for power connections or any sensor/general connection to prevent users from connecting the peripheral incorrectly or reversed. This is for the female housing. Be sure to order the mating header and crimp pins...
Pololu 12V, 2.2A Step-Down Voltage Regulator D24V22F12
The D24V22Fx family of step-down voltage regulators generates lower output voltages from input voltages as high as 36 V. They are synchronous switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with typical efficiencies of 85% to 95%, which is much more e...
Pololu 3.3V, 300mA Step-Down Voltage Regulator D24V3F3
The compact (0.4″ × 0.5″) D24V3F3 switching step-down (or buck) voltage regulator takes an input voltage between 4.3 V and 42 V and efficiently reduces it to 3.3 V while allowing for a maximum output current of 300 mA. The pins have a 0.1″ spacing, making this board compatible with standard so...
Pololu 38 kHz IR Proximity Sensor, Fixed Gain, High Brightness
This module features a fixed-gain, 38 kHz modulated IR sensor and a corresponding IR LED with oscillator circuit to make a tiny proximity sensor. This high-brightness version draws an average of 16 mA at 5 V and has a typical sensing range up to approximately 24 inches (60&nb...
Pololu 38 kHz IR Proximity Sensor, Fixed Gain, Low Brightness (irs05a)
Discontinuation notice: These original (irs05a) versions of our 38 kHz IR proximity sensors have been replaced by newer (irs05b) high-brightness and low-brightness versions. The main changes are the locations of the emitter LED and IR detector, which have been moved away from the edge of t...
Pololu 5V, 2.5A Step-Down Voltage Regulator D24V22F5
The D24V22Fx family of step-down voltage regulators generates lower output voltages from input voltages as high as 36 V. They are synchronous switching regulators (also called switched-mode power supplies (SMPS) or DC-to-DC converters) with typical efficiencies of 85% to 95%, which is much more e...
Pololu 5V, 300mA Step-Down Voltage Regulator D24V3F5
The Pololu D24V3F5 is a compact buck (step-down) switching voltage regulator that converts input voltages up to 42 V down to a fixed 5 V output. With a typical efficiency of 80–90%, it significantly outperforms linear regulators like the 7805, especially when there is a large difference between i...
Pololu 5V, 5A Step-Down Voltage Regulator D24V50F5
The Pololu D24V50F5 is a high-efficiency step-down (buck) voltage regulator that converts input voltages up to 38V down to a fixed 5V output. With a typical maximum output current of 5A and efficiency between 85% and 95%, it far outperforms linear regulators — especially when the input-to-output ...
Pololu 5V Step-Up/Step-Down Voltage Regulator S7V7F5
The Pololu S7V7F5 is a compact buck-boost switching voltage regulator that accepts a wide input range of 2.7 V to 11.8 V and produces a fixed 5 V output with typical efficiency over 90%. It automatically steps up or steps down the input voltage as needed, making it ideal for battery-powered appli...
Pololu 9V, 15A Step-Down Voltage Regulator D24V150F9
The Pololu D24V150F9 is a high-current synchronous step-down (buck) voltage regulator that converts input voltages up to 40V down to a fixed 9V output. With up to 15 A available output current and typical efficiencies of 80–95%, it's well suited for powering large loads like motors, LED arrays, a...
Pololu 9V, 1A Step-Down Voltage Regulator D24V10F9
The compact (0.5″ × 0.7″) D24V10F9 synchronous buck voltage regulator takes an input voltage of up to 36 V and efficiently reduces it to 9 V while allowing for a maximum output current of 1 A. This regulator offers typical efficiencies between 85% and 93% and has a very l...
Pololu Adjustable Boost Regulator 4-25V
Overview The Pololu adjustable boost regulator is a very flexible switching regulator (also called a switched-mode power supply, SMPS, or DC-to-DC converter) that can generate voltages higher than its input voltage. We offer two adjustable ranges: approximately 2.5 V to 9.5 V and ...
Pololu Aluminum Scooter Wheel Adapter for 1/4 Shaft
This two-part aluminum assembly mounts directly to 1/4 inch diameter motor output shafts like those on our NEMA 23 stepper motors and allows you to drive most scooter, skateboard, inline skate, and other common wheels that are compatible with popular 608 ball bearings. Two M4 set screws are...
Pololu Ball Caster with 1" Plastic Ball and Ball Bearings
This ball caster is an improved version of our original Pololu Ball Caster with 1″ Plastic Ball; we recommend this new version over the older version for all applications that are not somehow specifically tied to the previous design.This ball caster kit includes a two-part black ABS housing, a 1″...
Pololu Ball Caster with 3/4 Plastic Ball
This light ball caster uses a 3/4″ diameter plastic ball. The height of the assembled kit ranges from 0.9″ to 1.2″, depending on the combination of included spacers used. Included dowel pins can be used to reduce the friction between the ball and the ABS housing, but they are not necessary for o...
Pololu Basic 2-Channel SPDT Relay Carrier with 5VDC Relays (Assembled)
The Pololu Basic 2-Channel SPDT Relay Carrier provides simple, independent control of two single-pole, double-throw (SPDT) relay switches from low-voltage, low-current control signals. This assembled version comes ready to use with relays, terminal blocks, and header pins pre-soldered. Each rela...
Pololu Basic SPDT Relay Carrier with 12VDC Relay (Assembled)
The Pololu basic relay carrier modules allow simple control of a single-pole, double-throw (SPDT) switch from low-voltage, low-current control signals. This item includes the basic carrier PCB with a soldered-in 12 V relay, 5.0 mm terminal blocks for the switch connections, and stra...
