Keisei Co., Ltd.'s Company Profile and Products

■Features ・Ideal for middle power drivers ・VCE (sat) is low ・Small surface mount package saves space ・Lead-free compatible,...

• Transistors

• Bipolar Transistors

■Features ・Ultra-small composite bipolar transistor ・For power management ・Small surface mount package saves space ・Lead-fr...

• Transistors

• Transistor Arrays

■Features ・Since it has a built-in bias resistor, an inverter circuit can be configured without an external resistor on the in...

• Transistors

• Bipolar Transistors

■Features ・Ultra small composite digital transistor ・Partial pressure type ・Small surface mount package saves space ・Lead-f...

• Transistors

• Bipolar Transistors

• Transistors

• Mosfet Transistors

■Features ・Small mold type (SOT-23) ・High reliability ・Low VF

• Diodes

• Schottky Rectifiers

• Diodes

• Switching Diodes

■Features ・High-density mounting type with ultra-compact 2-terminal mini mold (VMN2). ・High reliability. ・Automatic mounting...

• Diodes

• Current Limiting Diodes

• Diodes

• Small Signal Diodes

■Features ・Small mold type ・High reliability

• Diodes

• Small Signal Diodes

■Features ・Features: Low saturation voltage ・Number of circuits: 2 ・Built-in diode: Yes ・RoHS Compatible Product (s) Compat...

• Switches

• IGBTs

■Features ・Applications: VHF, UHF MIX ・RoHS Compatible Product (s) Compatible products available

• Diodes

• Small Signal Diodes

■Features ・Applications: Communication, control, protection of measuring equipment / Constant voltage control / Surge absorpti...

• Diodes

• Zener Diodes

■Features ・Application: VHF/UHF VCO ・Number of circuits: 1 ・RoHS Compatible Product (s) Compatible products available

• Diodes

• Varactor Diodes

■Features ・Applications: For switching power supplies / For converters / For choppers ・Internal connection: Center tap ・RoHS...

• Diodes

• Diode Rectifiers

• Light Sources

• Rectangular LEDs

■Features ・Features: JEDEC compatible / analog output compatible ・Applications: For communication interface / for PLC / for m...

• Sensors

• Photocouplers

■Features ・Applications: For measuring instruments / for security systems ・Number of circuits: 1 ・RoHS Compatible Product (s...

• Relays

• MOSFET Output

■Features Adapter for unidirectional optical connector

• Connectors

• Industrial Connectors

■Features ・Applicable optical fiber model name (with connector): CF-2071 (HC-20/70) series (Sumitomo Electric Industries) ・Ap...

• Connectors

• Industrial Connectors

• Integrated Circuits

• Power Supply ICs

■Features ・Features: Unity gain possible ・Number of circuits: 1 ・Power supply type: Single/double power supply ・RoHS Compat...

• Amplifiers

• Operational Amplifiers

■Features ・Output direct PWM control possible ・Standby function (Power save) ・Forward rotation/reverse rotation/short brake/...

• Integrated Circuits

• Gate Driver ICs

• Transistors

• Power Transistors

• Switches

• Power MOSFET

• Transistors

• Bipolar Transistors

• Transistors

• Bipolar Transistors

• Sensors

• Temperature Sensors

• Amplifiers

• Operational Amplifiers

• Integrated Circuits

• IC Linear Regulators

• Integrated Circuits

• General Purpose Logic ICs

• Power Supplies

• Shunt Regulators

■Features ・1W class ・Bidirectional ・Small SMD ・Terminal Pb free ・RoHS:Yes

• Diodes

• Zener Diodes

■Features ・Thin SIP ・UL E142422 ・Terminal Pb free

• Diodes

• Diode Modules

■Features ・Small SMD ・High-speed switching ・AEC-Q101 compliant ・Terminal Pb free ・RoHS:Yes

• Diodes

• Small Signal Diodes

■Features ・Small SMD ・Terminal Pb free ・RoHS:Yes

• Diodes

• Diode Rectifiers

• Integrated Circuits

• Gate Driver ICs

■Features ・Unidirectional characteristics ・Smaller than the K1V series ・Switching operation with DC power supply for pulse g...

• Diodes

• Diode Modules

■Features ・Bidirectional characteristics ・High-speed response characteristics ・High surge current resistance ・Can be used r...

• Surge Countermeasures

• Spark Killers

■Features ・Bidirectional surge absorption possible ・Low junction capacitance ・Terminal Pb free ・RoHS:Yes

• Safety Devices

• Varistors

■Features ・IGBT with reverse voltage characteristics realized in one chip using Fuji Electric's unique technology ・Achieves h...

• Switches

• IGBTs

■Features ・Low power consumption with C-MOS type ・Standby current 2μA or less, startup current 30μA or less ・Latching PWM co...

• Integrated Circuits

• Power Supply ICs

■Features ・Operating power supply voltage: ±4to±18V ・Human body model (HBM) with built-in electrostatic protection circuit: ±...

• Amplifiers

• Operational Amplifiers

■Features ・Wide operating power supply voltage range (4.75 to 13V) ・3 inputs - 1 output ・6dB amplifier circuit ・Mute operat...

■Applications The NJM12901 is a 4-circuit comparator that operates from a single power supply starting from just 2V, and has fe...

• Converters & Transducers

• Comparator

■Features ・P: 1W ・VZ 1mA: 28±3V ・PR: 50 (5ms) W ・VDC: 20V ・IR: 10μA ・Mass: 0.07g

• Diodes

• Zener Diodes

■Features ・Terminal part Pb-free (RoHS compliant) ・Low loss ・High voltage resistance

• Diodes

• Diode Rectifiers

■Applications AG01A is a 600V, 0.5A high speed rectifier diode. TRR has been achieved at 100ns by optimizing lifetime control. ...

• Diodes

• Diode Rectifiers

■Applications AG01A is a 600V, 0.5A high speed rectifier diode. TRR has been achieved at 100ns by optimizing lifetime control. ...

• Integrated Circuits

• Gate Driver ICs

• Diodes

• Diode Rectifiers

• Diodes

• Diode Rectifiers

• Diodes

• Diode Rectifiers

• Surge Countermeasures

• Lightning Arresters

• Storage Devices

• Ferroelectric Random Access Memory (FRAM)

■Features 1.5mm pitch pressure contact type CZ connectors, holders for arranging two rows of their sockets, and pins with bases...

• Connectors

• Industrial Connectors

■Features This is an ultra-thin connector that increases the flexibility of board design for all electronic devices and meets t...

• Connectors

• Industrial Connectors

■Features Developed for PDP, LCD, and small electronic products. The basic structure of the contact part is the same as the pro...

• Connectors

• Industrial Connectors

■Features ・Narrow pitch (1.25mm) compatible with AWG#26 (UL10272/11079) ・Surface mount type that promotes automation without ...

• Connectors

• Industrial Connectors

■Features There are three types of posts with bases: top type, side type, and bottom type, and wires can be pulled out in three...

• Connectors

• Industrial Connectors

■Features This is a crimp type board-to-wire connector that is the core of the PA family of 2.0mm pitch strong locking connectors.

• Connectors

• Industrial Connectors

■Features A crimp type connector that is primarily intended for connecting FTV boards and has a strong lock and a suction surface.

• Connectors

• Industrial Connectors

■Features A 2.0mm pitch 2-row board-to-wire connector. With a mounting height of 8.8 mm and a depth of 5 mm, it has a low profi...

• Connectors

• Industrial Connectors

■Features A thin, low-profile connector developed in response to demands for higher density internal wiring.

• Connectors

• Industrial Connectors

■Features 4.0mm pitch board-to-wire and wire-to-wire connectors. Adopts low insertion contact to achieve excellent workability....

• Connectors

• Industrial Connectors

■Features ・Uses conductive polymer electrolyte to achieve ultra-low ESR and high ripple current. ・Guaranteed for 3,000 to 15,...

• Capacitors

• Aluminum Electrolytic Capacitors

■Features ・Small size and wide capacitance range. Available up to 470μF. ・Temperature characteristics are X7R characteristics...

• Capacitors

• Monolithic Ceramic Capacitors

■Applications ・Protection of various semiconductor elements from overvoltage. -Protection of various equipment from induced li...

• Safety Devices

• Varistors

■Applications ・Signal line noise countermeasures ・For DC power line noise countermeasures ・For AC power line noise counterme...

• Magnetic Materials

• Ferrite Cores

■Applications ・Common mode choke coil for noise suppression for inverters and large capacity power supplies ■Features - Signi...

• Magnetic Materials

• Ferrite Cores

■Features ・High efficiency, long life, wide range of speed control ・Efficiency and energy saving due to appropriate energizat...

• Motors

• Brushless Motors

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Motors

• Brushless Motors

■Features ・High efficiency, long life, wide range of speed control ・Efficiency and energy saving due to appropriate energizat...

• Motors

• Brushless Motors

■Features ・With gear head ・Output 1.5W, voltage DC12V, permanent magnet ・Rating Intermittent ・Reduction ratio 1:78.9

• Motors

• Brushed DC Motors

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Motors

• Stepping Motors

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Power Supplies

• Motor Drivers

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Motors

• Induction Motors

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Motors

• Reversible Motors

■Applications We handle all Nidek Advanced Motor (formerly Nidec Servo) products, so if you cannot find a product in your searc...

• Motors

• Synchronous Motors

■Features D series unidirectional type

• Motors

• Synchronous Motors

■Features ・Excellent noise absorption performance ・High allowable ripple current ・Small, thin, high capacitance, low ESR ・L...

• Capacitors

• Tantalum Capacitors

■Features ・Wide operating temperature range: -25℃ to +70℃ ・No need for periodic replacement ・Maximum working voltage 5.5VDC ...

• Capacitors

• Capacitors

■Features ・Ferrite used: 10H (including equivalent products) ・Applicable to ranges above 150kHz - Compatible with various siz...

• Electromagnetic Countermeasures

• EMC Countermeasure Components

■Features ・Original Ni-Zn ferrite core ・Operating temperature range: -25℃ to +75℃ ・Compliant with EU RoHS Directive (2011/65...

• Electromagnetic Countermeasures

• EMC Countermeasure Components

■Features ・We have a wide range of products from low frequency to high frequency. ・Non-divided structure ・We offer unpainted...

• Electromagnetic Countermeasures

• EMC Countermeasure Components

■Features ・Single phase ・Operating temperature range: -25℃ to +55℃ ・UL, CSA & TÜV certified products available ・Compliant w...

• Filters

• Noise Filters

■Features ・Drum core structure ・NiZn-based ferrite core ・Non-magnetic shield type ・Operating temperature range: ~ +105℃ ・R...

• Coils

• Inductors (Coil)

■Applications ・Overheat monitoring of power transistors, power modules, etc. used in power supply equipment, OA equipment, and...

• Sensors

• Temperature Sensors

■Features AT thermistors are high precision thermistors with extremely small tolerances (±1%) in resistance value and B constan...

• Sensors

• Thermistor Sensors

■Features The constant current diode CRD E series is a DO-35 style DHD (Double Heatsink Diode) structure. This is a small devic...

• Diodes

• Current Limiting Diodes

■Features Silicon surge absorber VRD is a surge absorber developed to absorb surge voltage with a steep rise. VRD solves the pr...

• Surge Countermeasures

• Spark Killers

■Features Press contacts, loose (100 pieces/pack) ■Characteristics The D sub series connector is a representative product as a...

• Connectors

• D-Subminiature Connectors

■Features Cable clamp, TÜV certified, waterproof when mated, for cabtire cables, applicable shell size: 18, applicable cable di...

• Connectors

• Circular Connectors

■Features ・Cable clamp, applicable shell size: 20,22 ・Compatible with JN1 and uses some metal for the outer shell, greatly in...

• Connectors

• Circular Connectors

■Features Socket contacts, crimp, loose (100 pieces) ・Lightweight connector with all plastic body ・Easy and reliable mating w...

• Connectors

• Circular Connectors

■Features One-touch mating round waterproof connector, original composite type with 4 power pins and 2 signal pins in a compact...

• Connectors

• Circular Connectors

■Features Small waterproof connector for interface of small motors for industrial equipment

• Connectors

• Waterproof Connectors

■Features Small waterproof connector, power supply, receptacle, 4-pole, angled through-hole pin type

• Connectors

• Waterproof Connectors

■Features ・1005 (t=0.25 mm) type, orange light emitting LED ・External size 1.0 x 0.5 x 0.25mm (L x W x H) ・Suitable for lead...

• Power Supplies

• Surface Mount Device (SMD) LED's

■Features ・3.2×2.5mm size crystal oscillator ・CMOS output

• Generators

• Crystal Oscillators

■Applications LAN isolation pulse transformer 10/100BASE IEEE802.3 compliant

• Transformers

• Power Transformers

■Applications Effective for removing and reducing noise on video monitors of surveillance and security camera systems.

• Transformers

• Power Transformers

■Features A highly reliable cooling fan. It can cool a wide range of equipment, including information and communication equipme...

• Temperature Control

• Axial Flow Fans

■Features ・DC fan 40mm square x 15mm thick / San Ace 40 ・Rated voltage: 12V

• Temperature Control

• DC Axial Fans

■Features With an expected lifespan of up to 180,000 hours, it is suitable for equipment that requires long-term maintenance-fr...

• Temperature Control

• DC Axial Fans

■Features This fan features high static pressure. Ideal for cooling and ventilation applications that require high reliability ...

• Temperature Control

• Cooling Fans

■Features A waterproof fan that can be driven by AC input. It has waterproof and dustproof performance, and realizes energy sav...

• Temperature Control

• DC Axial Fans

■Features It maintains stable operation even in harsh environments where oil mist is generated. Can be used for control equipme...

• Temperature Control

• DC Axial Fans

■Features This is a fan that converts AC power to DC power inside the fan. The superior performance of DC fans, such as low pow...

• Temperature Control

• DC Axial Fans

■Features This is a device that externally controls the rotation speed of a fan with PWM control function. A fan with PWM contr...

• Controllers

• Motor Controllers

■Features ・Ultra low noise ・With variable output voltage function ・With ON/OFF control ・Single dual power supply ・Can be u...

• Converters & Transducers

• DC To DC Converters

■Features ・With variable output voltage function ・With ON/OFF control function ・Dual power supply can be used as a single po...

• Converters & Transducers

• DC To DC Converters

■Features ・With variable output voltage function ・With ON/OFF control function ・Dual power supply can be used as a single po...

• Converters & Transducers

• DC To DC Converters

■Features ・With variable output voltage function ・With ON/OFF control function ・Dual power supply can be used as a single po...

• Converters & Transducers

• DC To DC Converters

■Features ・With variable output voltage function ・With ON/OFF control function ・Dual power supply can be used as a single po...

• Converters & Transducers

• DC To DC Converters

■Features ・With variable output voltage function ・With ON/OFF control function ・Dual power supply can be used as a single po...

• Converters & Transducers

• DC To DC Converters

• Magnetic Materials

• Ferrite Cores

• Magnetic Materials

• Ferrite Cores

• Magnetic Materials

• Ferrite Cores

• Coils

• Power Inductors

• Coils

• Inductors (Coil)

• Coils

• Inductors (Coil)

• Coils

• Inductors (Coil)

• Capacitors

• Ceramic Capacitors

• Capacitors

• Ceramic Capacitors

• Capacitors

• Aluminum Electrolytic Capacitors

■Features Seal structure equivalent to IP64 (IEC-60529) prevents flux from entering and ensures high contact reliability even w...

• Switches

• DIP Switches

■Features Seal structure equivalent to IP64 (IEC-60529) prevents flux from entering and ensures high contact reliability even w...

• Switches

• Slide Switches

■Features ・Contacts are gold-plated and twin contacts ensure high reliability. -Soldering can be done in either ON/OFF position.

• Switches

• Slide Switches

■Features - Unique opening/closing mechanism achieves inrush current resistance of 100A. -Good sharpness and soft operating fee...

• Switches

• Lock Switches

■Features ・Achieves a sharp click feeling and high durability. ・A series of taping specifications that can be used with gener...

• Switches

• Tactile Switches

■Features We offer a wide variety of sizes, shapes, colors, etc. ■Characteristics Key top exclusively for convex plunger types...

• Switches

• Tactile Switches

■Features ・Achieves high durability with high precision and 2-split spring structure. - Adopts an integrally molded terminal s...

• Switches

• Microwave Switches

■Features Omron's best-selling microswitch comes in a wide variety of variations from 0.1A to 10.1A types. A wide variety of op...

• Switches

• Microwave Switches

■Features ・Achieves sharp click feeling and high durability - Embossed taping packaging specifications are available, ideal fo...

• Switches

• Tactile Switches

■Features - Contributes to downsizing of equipment by making it thinner. - Seal structure equivalent to IP67 (IEC-60529) ensure...

• Switches

• Tactile Switches

■Features - Sturdy as it is a screw lock type. -Solder type and crimp type can be easily integrated. ■Characteristics There ar...

• Connectors

• Industrial Connectors

■Features - Sturdy as it is a screw lock type. ・Ideal for shielding electromagnetic waves as it is plated. ・Equipped with a s...

• Connectors

• Industrial Connectors

■Features - Uses a metal shell, contributing to miniaturization and robustness. ・The connection part has a solder cup structur...

• Connectors

• Industrial Connectors

■Small and low profile 3/6 poles: maximum outer diameter Ø12.6mm, 3/6 poles: mated height 32.3mm (from panel surface), 10/12 po...

• Connectors

• Industrial Connectors

■Small and robust A small and robust connector with a metal shell. ■Bayonet lock structure The lock is easy to operate and has...

• Connectors

• Industrial Connectors

■Features ・5 types of shell sizes 12, 15, 21, 24, 31 ・Number of cores is 2,3,4,5,6,7,8,10,12,15,20,31,40 ・Waterproof type av...

• Connectors

• Industrial Connectors

■Features ・External dimensions/weight: 10×4×8mm 0.4g ・Black or transparent body type

• Safety Devices

• Fuses

■Features ・External dimensions/weight: 0.5g ・Color: Black

• Safety Devices

• Fuse Holders

■Features ・External dimensions/weight: 8×6×8.5mm 0.4g ・Transparent body type

• Safety Devices

• Fuses

■Features ・External dimensions/weight: 8×7.7×7.8mm 1g ・Color: Black

• Safety Devices

• Fuse Holders

■Features ・External dimensions/weight: 10×6×10mm 0.7g ・Transparent body type

• Safety Devices

• Fuses

■Features ・External dimensions/weight: 0.6g ・Color: Black

• Safety Devices

• Fuse Holders

■Features ・External dimensions/weight: 32×11.5×20.5mm 6g ・Color: Dark green

• Safety Devices

• Fuses

■Features ・Weight: 9g ・Color: Light white

• Safety Devices

• Fuse Holders

■Features ・External dimensions/weight: 17.2×5.5×19mm 1.8g ・Color: dark green

• Safety Devices

• Fuses

■Features ・External dimensions/weight: 17.2×5.5×19mm 1.8g ・Color: Black

• Safety Devices

• Fuses

■Features ・Supported frequency: 24-72MHz ・CMOS output ・Low jitter characteristics ・High temperature (125℃) compatible

• Generators

• Crystal Oscillators

■Features ・General-purpose type with 500Vac line that has acquired UL standards ・Contact protection (contact spark eliminatio...

• Surge Countermeasures

• Spark Killers

■Features ・Induced lightning surge countermeasure parts for single-phase and three-phase power lines. ・Response speed is impo...

• Surge Countermeasures

• Surge Protectors

■Features ・Acquired major overseas standards with 275Vac rating ・IEC/EN 60384-14 Class X1 certified, environmental category (...

• Filters

• Noise Filters

■Features ・Uses polyester film as a dielectric material and has excellent performance. -Small and lightweight, making it suita...

• Capacitors

• Film Capacitors