Fibre glass reinforced, 1 1/4" cut off wheels/disc for dremel/rotary tools 10pcs for 250php

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BNC Electrode Probe Connector Hydroponic for PH Aquarium Controller Meter Sensor

Description:
The PH electrode has a single cylinder that allows direct connection to the input terminal
of a PH meter, controller, or any PH device which has a BNC input terminal.
The PH electrode probe is accurate and reliable that can gives almost instantaneous readings.

PH range: 0-14 PH
Temperature range: 0-60℃
Zero-point: 7 ± 0.5PH
Alkali Error: 0.2PH
Theoretical Percentage Slope: ≧98.5%
Internal Resistance: ≦250MΩ
Response Time: ≦1min
Operating Temperature: 0-60℃
Terminal Blocks: BNC plug
BNC Connector suitable for most PH meter and controller.
Suitable for wide range of application: Aquariums, Hydroponics, Laboratory etc.

Package Includes:
1 x BNC Electrode Probe Connector Hydroponic for PH Aquarium Controller Meter Sensor

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BD9329 D9329A BD9329A D9329 common problem power chip SOP8

Package Includes:
1 x BD9329 D9329A BD9329A D9329 common problem power chip SOP8

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Polyimide Gold Kapton Tape 10mm 100ft BGA High Temperature Heat Resistant

Item Description:
Use for : Extensive use as electrical insulation for transformer, motor, coil, capacitor and frequency conversion power supply in electronic industry.

Specifications:
One-side Self-adhesive
Size : 10mm(width)×100ft(±5ft length)
Type : Kapton Tape
Heat Resistance: 280℃

Package Includes:
1 x Polyimide Gold Kapton Tape 10mm 100ft BGA High Temperature Heat Resistant

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3.3V 3A LM2596T-3.3 LM2596 NSC TO-220 Voltage Regulator

Datasheet:
http://pdf1.alldatasheet.com/datashe...2596T-3.3.html

LM2596 SIMPLE SWITCHER® Power Converter 150 kHz 3A Step-Down Voltage Regulator

General Description:
The LM2596 series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 3A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3V, 5V, 12V, and an adjustable output version. Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation†, and a fixed-frequency oscillator. The LM2596 series operates at a switching frequency of 150 kHz thus allowing smaller sized filter components than what would be needed with lower frequency switching regulators. Available in a standard 5-lead TO-220 package with several different lead bend options, and a 5-lead TO-263 surface mount package. A standard series of inductors are available from several different manufacturers optimized for use with the LM2596 series. This feature greatly simplifies the design of switch-mode power supplies. Other features include a guaranteed ±4% tolerance on output voltage under specified input voltage and output load conditions, and ±15% on the oscillator frequency. External shutdown is included, featuring typically 80 µA standby current. Self protection features include a two stage frequency reducing current limit for the output switch and an over temperature shutdown for complete protection under fault conditions.

Features:
3.3V, 5V, 12V, and adjustable output versions
Adjustable version output voltage range, 1.2V to 37V
±4% max over line and load conditions
Available in TO-220 and TO-263 packages
Guaranteed 3A output load current
Input voltage range up to 40V
Requires only 4 external components
Excellent line and load regulation specifications
150 kHz fixed frequency internal oscillator
TTL shutdown capability
Low power standby mode, I
Q typically 80 µA
High efficiency
Uses readily available standard inductors
Thermal shutdown and current limit protection

Applications:
Simple high-efficiency step-down (buck) regulator
On-card switching regulators
Positive to negative converter

Package Includes:
1 x 3.3V 3A LM2596T-3.3 LM2596 NSC TO-220 Voltage Regulator

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Liquid Water Level Sensor Right Angle DC 220V Float Switch for Fish Tank

Description:
Float level switch is a simple structure, easy to use level control devices, it does not provide power, no complicated circuit, it has a smaller volume than the general mechanical switch, long working life and other advantages. As long as the material selection is correct in shape, and the nature of any liquid or pressure, temperature can be used, which in the shipbuilding industry, generating equipment, petrochemical, food industry, water treatment equipment, dyeing and finishing industry, hydraulic machinery, etc. have been widely applications.

How it works: an important level sensor magnetic reed switch and the float composed of magnetic material inside the float, set up one or more magnetic reed switch in a closed non-magnetic metal pipe or plastic pipe, and then the catheter through a or more with magnetic float, and double loop control with fixed float and reed switch in the relevant position, the float rises or falls with the liquid, use inside the ball close to the beginning of the reed contact, resulting in open and closed action, for level control or direction (when float near the reed switch is turned on; switch off when you leave).

1. Contact capacity: 70W 6. resistive load: 107 back
2. Switching voltage: DC110V 7. Working temperature: -10 ~ 60 ℃
3. Switch Current: 0.5A 8. Working pressure: <0.6MPA
4. Insulation resistance:> 10Ω 9. medium gravity:> 0.6
5. Contact resistance: <100m 10. switch material: PP

Package Includes:
1 x Liquid Water Level Sensor Right Angle DC 220V Float Switch for Fish Tank

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LM338T LM338 Voltage Regulator 1.2V To 32V 5A TO-220

Description : 5 Amp Adjustable Regulator

General Description:
The LM338 series of adjustable 3-terminal positive voltage regulators is capable of supplying in excess of 5A over a 1.2V to 32V output range. They are exceptionally easy to use and require only 2 resistors to set the output voltage. Careful circuit design has resulted in outstanding load and line regulation comparable to many commercial power supplies. The LM138 family is supplied in a standard 3-lead transistor package.

Features:
Guaranteed 7A peak output current
Guaranteed 5A output current
Adjustable output down to 1.2V
Guaranteed thermal regulation
Current limit constant with temperature
P+ Product Enhancement tested
Output is short-circuit protected

Datasheet:
LM338T Datasheet PDF - National ->Texas Instruments

Package Includes:
1 x LM338T LM338 Voltage Regulator 1.2V To 32V 5A TO-220

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HK19F DC 12V Coil DPDT 8 Pin 2NO 2NC Mini Power Relays PCB Type

Description:
Product Name: PCB Power Relay
Model: HK19F
Coil Voltage: DC 12V
Contact Capacity:
1A 125V AC
2A 30V DC
Number of Pins: 8
Contact: DPDT
Size (Approx.) 2 x 0.9 x 1.5cm/0.8" x 0.4" x 0.6" (L*W*H)
Color Yellow
Weight 9g

Descriptions:
8 pins, DPDT type, PCB mount.
Can adjust automatically, protect and transform the electric circuit.
Used widely in the remote control, communication, automatic control system, electronic equipments, etc.

Package Includes:
1 x HK19F DC 12V Coil DPDT 8 Pin 2NO 2NC Mini Power Relays PCB Type

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