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Product
Custom DC to DC Converters
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CEHCO is manufacturer, re-seller, and distributor of Power Rectification products such as DC Rectifiers, Transformer Rectifier Assemblies, and Custom Power Supplies since 1945.
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Product
M Series Panel Meters
ST-118T
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Standard Electric Works Co., Ltd
M Series all up to 15A. Case and Composition:Acrylic resin front and ABS resin case. Four studs mounting.Accuracy:Moving coil type : Class 2.0. Rectifier type : Class 2.0. Color:Black case, white scale plate. Pointer:Tube type, color in black or red.
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Product
High Voltage EMC Surge Generator
TM510
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TM510 Surge Generator is mainly used for testing power cable high-resistance and arc-over fault whose grade range is 0-10kV, co-operating with cable fault tester and locating devices to test and locate faults. If the user choose the professional digital milli-ampere-meter, as for cable with grade range about 0- 6kV, the instrument can also be used to do DC&voltage resistance test and current leakage test after the fault is repaired. The instrument is internally equipped with voltage-rise rectifying and discharging device, has complete functions, and is also convenient and safe to be wired and operated.
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Product
Ampere Hour Meter Module
TE2504
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Ampere Hour Meter Module- Model TE 2504 is basically managed for ready setup or the usage can be seen in where the current requirement are low. This one is used which is ready to be applied in the stand alone panel and advanced from all the former models, IM2501, IM2502 and IM2503. These are basically panel mount instruments which are required to rectified in the rectifier or in an independent panel.
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Product
Refurbished Rectifiers
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CEHCO has a large inventory of used and refurbished rectifiers in stock. All include 3 month part warranty.
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Product
Schottky Mixer and Detector Diodes
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Macom Technology Solutions Holdings Inc.
Schottky diodes are majority carrier diodes formed by plating a layer of metal on a layer of doped semiconductor, which forms a rectifying junction. The type of metal and the type of dopant in the semiconductor determines the diode’s barrier height, which is a measure of the amount of energy required to force the diode into forward conduction. MACOM produces Si Schottky diodes as well as GaAs Schottky diodes for use as signal detectors or in frequency mixers.
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Product
Power Discrete Tester
Mostrak-2
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M2 test system has multiple test generators which cover static and dynamic test procedures. It is our first truly modular tester which allows for the system to be upgraded and expanded when needed. M2 are designed to get the tester as close as possible to the handler interface and operator at the highest possible speeds. M2 is capable of HV (3 kV) and LV (600A) testing and has dynamic switching capabilities up to 1200V. MOSTRAK systems can test the following device types: MOSFET, IGBT, Bipolar transistor, Diode - rectifiers, Thyristor (SCR) - Triac, Linear voltage regulator (VReg), Transient voltage suppressor (TVS).
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Product
P Series Panel Meters
ST-80
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 50A● Hz Meter : Measuring Ranges : 45~55 Hz, 45~65 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0● Case and Composition: Acrylic resin front. Bakelite case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color:Black case, white scale plate.● Pointer:Tube type, color in black or red.
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Product
P Series Panel Meters
ST-38N
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Standard Electric Works Co., Ltd
● DC up to 15A● Case and Composition: Acrylic resin front. ABS case. Four studs mounting. Two studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color:Black case, white scale plate.● Pointer:Tube type, color in black or red.
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Product
Turns Ratio Testers
TRT Standard Series
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When it comes to choosing a transformer turns ratio tester, TRT Standard series offers some of the most advanced instruments with LCD display out in the market. Each model measures transformer excitation current and phase shift performs automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. Furthermore, they have a built-in true three-phase power source. Because of that, TRT Standard instruments can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 250 V AC, depending on the chosen model. High test voltage of 250 V AC provides more accurate turns ratio testing compared to other turns ratio testers on the market and extremely low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT Standard series consists of:TRT03 Models (TRT03A, TRT03B, TRT03C) – single-phase voltage up to 100 VTRT3x Models (TRT30A, TRT30B, TRT30C, TRT33A, TRT33B, TRT33C) – single and true three-phase voltage up to 100 VTRT63 Models (TRT63A, TRT63B, TRT63C) – single and true three-phase voltage up to 250 VMore about models differences can be found under the downloads tab, in brochures and comparison sheets.A user can create test templates using the DV Win software and store them in the PC’s memory for later use when in the field.TRT Standard series models have a built-in tap changer control unit. Consequently, it enables remote control of an on-load tap changer (OLTC) directly from the tester. In order to make the most out of this feature, the DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time.
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Product
Selenium Voltage Doubler Rectifier P/N 6063C
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Selenium Voltage Doubler Rectifier, P/N 6063CPlate size: 1.6” x 1.6”Each plate is rated for 33 Volts, 9 AmpsNumber of plates: 24
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Product
Field Effect Rectifiers
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ST field-effect rectifier diodes (FERD) help improve designs with new versions focusing on trade-off upgrades. Field-effect rectifier diodes belong to our STPOWER family. The design of the FERDs has allowed both a decrease in the voltage drop and a decrease in the leakage current temperature coefficient. As a result, the runaway safety margin is improved and maybe beyond the typical safety margin of Schottky barrier diodes.
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Product
Bridge Rectifier Assemblies
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Bridge Rectifier Assemblies are constructed by packaging diodes and/or SCR components with heat sink extrusions in a bridge circuit.CEHCO uses M, T, N and W heat sink extrusions to build rectifier assemblies.
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Product
48V / 200 Amp Load
EL12-48M
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For Battery Discharge testing and Power Supply testing. This particular Load has been designed to operate with Telecom 48V Rectifiers and Power Supplies with output Voltages in the range of 38V to 60V and is extremely costeffective.
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Product
M Series Panel Meters
ST-66
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Standard Electric Works Co., Ltd
● M Series all up to 15A● Case and Composition:Acrylic resin front and ABS resin case. Four studs mounting.● Accuracy:Moving coil type : Class 2.0 Rectifier type : Class 2.0● Color:Black case, white scale plate.● Pointer:Tube type, color in black or red.
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Product
Active Switching Rectifiers, 2 KW, P/N 6016C
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- Active Switching Rectifier, 2 KW, P/N 6016C- Input Range: 9 VAC to 35 VAC, 3 PH- Frequency Range: DC to 10 kHz- DC output: 13.5 VDC, 70 Amps without any heatsink (Test #1)- DC output: 13.5 VDC, 150 Amps with heatsink (Test #2)- Dimensions: 8″W x 8″L x 3″H or similar- AC to DC and DC to DC applications- Generates less heat as power MOSFET Switching is used- The output voltage is the same as the input voltage
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Product
Diodes And Rectifiers
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Vishay is a world leader in diodes and rectifiers, having a broad technology base and a solid position in automotive, industrial, computing, and consumer markets.
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Product
Portable Current Supply 10 AMP output
CS-10
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The CS-10, Sure beats carrying around a rectifier and generator...
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Product
Ammeter
AC Rectifier Type Coil Meter
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measures the alternating voltage and current with the help of rectifying elements and permanent magnet moving coil type of instruments. However the primary function of rectifier type of instruments work as voltmeter. Now one question must arises in our mind why we use rectifier type of instruments widely in the industrial world though we have various other AC voltmeter like electrodynamometer type instruments, thermocouple type instruments etc? The answer to this question is very simple and is written as follows.
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Product
S Series Panel Meter
ST-670B
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type:Class 2.0 Moving lron type:Class 2.5 Rectifier : Class 2.0● Color:Black case. white scale plate.● Pointer:Tube or knife-type, color in black or red.
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Product
Rectifier
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An electrical device that converts alternating current, which periodically reverses direction, to direct current, which flows in only one direction.
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Product
Resistive & Capacitive AC Load Bank
RCD
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RCD AC load banks are used to test the REAL working condition of UPS, rectifier, inverter and etc who are loaded by non-linear or electronic load with non-constant resistance such as computer, networking equipments and etc. Through the accurate detection of its output and power quality, users could avoid the inadequate loading capacity or cause pollution to power grid, so as to guarantee supply security. JUNXY RCD load banks leading power factor loads are created to debug power supply system parameters such as its crest factor test.
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Product
Delta DC Rectifier Repair/Refurbishment
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Delta DC Rectifiers are used by original equipment manufacturers to build On-Site Sodium Hypochlorite Generator Systems. These power supplies are generally operated at full load for 24/7 operations at high temperatures. Hence, these power supplies must be extremely rugged and must be de-rated significantly to achieve long operating life.
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Product
Stationary Industrial And Railway Power Supply
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For decades, Gustav Klein has been supplying safe power supplies for industry and railways, such as rectifiers, inverters, DC converters, UPS and BSV systems, as well as frequency converters with a fixed output frequency.
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Product
Rectifier Transformers
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Osborne’s Rectifier Transformers are used in conjunction with various rectification configurations to convert AC input to DC output(s). Key characteristics include regulation, transformer utilization and AC ripple. Osborne rectifier transformer designs are often engineered to operate in advanced rectifier circuit applications.
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Product
Rectifier/Modular PSUs
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The rectifier families are housed in either 19" racks or provided as compact modules. The rack mounting rectifiers are aimed at telecoms applications. This range of robust rectifiers start at 250W and have a life time of more than 8 years and an MTBF of over 50 years. For even greater security these hot swap modules can be configured to provide a redundant DC output. Up to 2 additional AC inputs with automatic switchover are provided on a number of these telecoms rectifiers.
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Product
Battery Charger Meters
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A range of ammeters and voltmeters with tough moving magnet or polarised moving iron movements designed for low cost indication of d.c. or rectified a.c.
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Product
AC Ammeters And Voltmeters With A MuP Type Rectifier
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*AC Ammeters and voltmeters with rectifier type MuP 40,80,210,220,230*Handle deflection 85 ° type MuP40, MP 80*Handle deflection of 100 ° type MuP210, MuP 220 / 220T, MuP 230 / 230T*The technical data catalog can be found on the download tab below the product.
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Product
Load Banks
EL08 Series
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*Rectifier Test 8kW*All of our Load Banks are continuously rated for Power and Current.





























