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BMS Charger for 3.7V Lithium battery with protection

BMS1S

1S BMS (Battery Management System) for use with a single cell 3.7v Lithium battery

 
This BMS is designed to charge and manage the use of a lithium battery. It will manage the charging when used with an apropriate constant current power supply for the battery. It will also protect the battery from both over voltage and under voltage. It also features over current and short circuit protection.
 

This BMS will charge 1 lithium battery like 18650 or 26650. It will also charge 1S LiPo (Lithium Polymer) battery packs.   

 
A constant voltage/current power source is needed to properly use this BMS like the BCD5A or BCD9A
 
Voltage in : 4.2V - 5VDC
Over Voltage Protection : 4.2VDC
Under Voltage Protection : 2.75VDC
Maximum Charging Current : 2A
Maximum Discharging Current : 2A
Over Current Protection : 3A
Dimensions : 30mm x 3.8mm

£2.50

(inc VAT £3.00)
Quantity

BNC Boot Sleeve for BNC Crimps 10 pack

BOB10

BNC Boot/Sleeve/Cable protector for BNC Crimps in a pack of 10

Available from October 2016

£1.50

(inc VAT £1.80)
Quantity

BNC Chassis Socket with Four Hole Fitting

BCD

BNC Chassis Socket. 4 Screw Mounting Plate.

Nickel Plated with Gold contact.

£1.25

(inc VAT £1.50)
Quantity

BNC Chassis Socket with Single Hole Fitting

BCC

BNC Chassis Socket Single nut fixing. Gold plated contact

£0.75

(inc VAT £0.90)
Quantity

BNC Coupler - Joins 2 BNC Plugs

BFB

BNC Coupler 2 Females (to join 2 BNC plugs)

£0.75

(inc VAT £0.90)
Quantity

BNC Female to RCA Male Adaptor

BPP

Adaptor: BNC Socket (Female) to Phono (RCA) Plug

£0.65

(inc VAT £0.78)
Quantity

BNC Female to UHF Male Adaptor

BUP

Adaptor: BNC Socket (Female) to PL259 (UHF) Plug (Male)

£2.50

(inc VAT £3.00)
Quantity

BNC Male to Male Coupler

BMB

BNC Male to Male Coupler. Joins 2 Females

£1.75

£1.50

(inc VAT £1.80) 14% Off
Quantity

BNC Plug with Screw & Clamp Fitting

BPT

BNC Plug Solderless (Screw & Crimp), or can be soldered. Flexible Cable Inlet. For use with RG58, RG59 etc cables.

£1.00

(inc VAT £1.20)
Quantity

Boost Converter DC-DC Step Up 10A Voltage regulator

BCU10A

10A DC-DC Step Up Voltage Regulator (Boost Converter)

 
This step up voltage regulator uses high frequency switching to make a very efficient DC-DC converter. It can take from 10V to 32VDC in and step it up to a higher voltage from 12V to 35VDC at up to 10A (output). The voltage is set with the small multi turn potentiometer.
 
note: If using this converter at its limits, you will need to fan cool the converter.
 
Voltage in : 10V - 32VDC
Voltage out : 12V- 35VDC
Maximum Output Current : 10A
Dimensions : 65mm x 35mm

£8.50

(inc VAT £10.20)
Quantity

Boost Converter DC-DC Step Up 2A Voltage regulator With USB

BCU2AU

2A DC-DC Step Up Voltage Regulator With USB (Boost Converter)

 
This tiny step-up voltage regulator uses high frequency switching to make a very efficient DC-DC converter. It can take 2V to 24VDC in (or 5VDC via USB) and step it up to a higher voltage, up to a maximum of 28V at up to 2A (output). The voltage is set with the small multi-turn potentiometer.
 
Voltage in : 2V - 24VDC
Voltage out : 2.5V- 28VDC
Maximum Output Current : 2A
Dimensions : 36mm x 17mm

£2.50

(inc VAT £3.00)
Quantity

Boost Converter DC-DC Step Up Dual Rail ± 15V 100mA

BCU1515

100mA DC-DC Step Up Dual Rail ± 15V DC Voltage Regulator (Boost Converter)

 
A small module designed to provide split rail 15V DC (with 100mA) current from a single 3V-13V DC supply. Very useful for use with opamps and other devices that require dual rail supply. 
 
Voltage in : 3-13 VDC
Voltage out : ±15VDC (±4% tolerance)
Maximum Output Current : 100mA
Dimensions : 23mm x 13mm

£3.50

(inc VAT £4.20)
Quantity

BPW14C Phototransistor

BPW14C

NPN Phototransistor TO18 32V 50mA 780nm. 100nA Dark current

£12.50

(inc VAT £15.00)
Quantity

BPW21 Photodiode

BPW21

Photodiode. Near Human Eye Spectral response. 350-820nM. 10V

£11.75

(inc VAT £14.10)
Quantity

BPW34 Photodiode

BPW34

Pin Photodiode 4.5mm 2-32V Sensivity 300-1100nM 80nA 20nS

£3.50

(inc VAT £4.20)
Quantity

BPW41N Photodiode

BPW41N

Pin Photodiode TO92 with IR filter. 60V max. Sensivity 870-1050nM Peak 950nM. 100nS

£2.50

(inc VAT £3.00)
Quantity

BPW77 Phototransistor

BPW77

Phototransistor NPN TO18 70V 100mA.

£7.50

(inc VAT £9.00)
Quantity

BPY62-3 Phototransistor

BPY62-3

Phototransistor NPN TO18 50V 420-1130nM. Peaks at 850nM. Dark current 5nA

£2.35

(inc VAT £2.82)
Quantity

BR100 Diac

BR100
Diac 28-32V go to DB3

BR103 Thyristor (SCR)

BR103
SCR TO92 go to P0102DA

BR303 Thyristor (SCR)

BR303

SCR Thyriostor TO126 30V 1A 200uA

£4.85

(inc VAT £5.82)
Quantity

Bracket for Very Large & Heavy TVs & Monitors from 40 to 90 inches & 90kg

BKFH

Bracket for Very Large or Heavy TVs & Monitors -  40 to 90 inch TVs & Monitors - Up to 90kg (198lb)

  • Universal mounting pattern
  • Super Strong Bracket for Heavy & Large TVs
  • Minimal distance to the wall: 35mm 
  • Close to Wall Fitting
  • VESA (mm): upto 800 x 400

£37.50

(inc VAT £45.00)
Quantity

Braided USB A to USB C lead for Charging and Data

LUSBCK

High Speed USB to USB-C Lead for Charging and Data 1 metre long

Rugged USB-A to USB-C cable with gold plated connectors.


Specifications

Length: 2m
Cable Mantle Size: 3.4mm
Conductor Diameter: 16 x .08mm
Max Power: 15W
Transfer Rate: 480Mbps
Output Current: 3A


 
Sutable for:   Samsung Galaxy S7 or newer
                     Google Pixel (All)
                     Huawei P10 or Newer
                     Huawei Honour 8 or Newer
                     Many other phones and tablets

£8.00

(inc VAT £9.60)
Quantity

Brass Heatsink for TO92 Transistors

92F

Clip On Heatsink for TO92 all small signaltransistors 

Bright Brass 14 x 14 x 12mm 31C/W

£1.50

(inc VAT £1.80)
Quantity

Breadboard Power Supply 5V / 3.3V

BBPSU

Power Supply Board for Breadboard

 
This PSU board is designed to fit directly on to a standard breadboard such as our BB400T and BB830. to give 2 power rails, 5V or 3.3V, Rail voltages are switch selectable. It can powered by 7-12V at the DC socket or 5V via the micro USB socket.
 
Voltage in : 5VDC Via USB or 7-10VDC 
Max Current : 700mA
Size 53x31mm

£2.50

(inc VAT £3.00)
Quantity

Bright Clear Blue 5mm LED 2400mcd

B5K

Bright Blue 5mm LED Water Clear. 2400mcd, 3.0-3.2V 20mA 

£0.20

(inc VAT £0.24)
Quantity

Bright Clear Green 5mm LED 2400mcd

G5K

Bright Green 5mm LED Water Clear. 2400mcd, 3.0-3.2V 20mA 

£0.20

(inc VAT £0.24)
Quantity

Bright Clear Red 5mm LED 2400mcd

R5K

Bright Red 5mm LED Water Clear. 2400mcd, 1.8-2.0V 20mA 

£0.20

(inc VAT £0.24)
Quantity

Bright Clear Yellow 5mm LED 2400mcd

Y5K

Yellow Blue 5mm LED Water Clear. 2400mcd, 2.0-2.2V 20mA 

£0.20

(inc VAT £0.24)
Quantity

Bright Metal 3 Leg Tight Corner Pack of 4

CORB4

Heavy Duty Bright Metal Tight Cabinet Corner. Bright Plated Ball-shaped 3 Leg Corner. Pack of 4

£5.85

(inc VAT £7.02)
Quantity
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