Shared Projects by MosMaxElectronics

https://www.digikey.com/product-detail/en/wurth-electronics-inc/9774050243R/732-7097-1-ND/5320702

https://www.digikey.com/product-detail/en/c-k/KSC243JLFG/401-1764-1-ND/1003939

Brought to you by http://MosMax.com

Components:

250C style board for the Smart PWM V3 which can be attached with 2.54mm pitch header pins. 0.36" 3-wire voltmeter in cutout.

D1 - https://www.mouser.com/ProductDetail/Lumex/SSL-LX40FT3ID?qs=%2fha2pyFadujxBjlUmTzxXrCIgmGlcT2WBxtU6kQaw6TtNoou84YoUQ%3d%3d

D1-SPACER - https://www.mouser.com/ProductDetail/749-ELM-2-1MM

R1 - 0805 case current limiting resistor for D1. To determine value, look at datasheet for the LED, know the max voltage of your batteries & use an LED resistor calculator

S1, S2, S3 - https://www.mouser.com/ProductDetail/Omron-Electronics/B3SL-1005P?qs=FfQ8ThoHJhGe9QOr6%252bon8g%3D%3D

S4 - https://www.mouser.com/ProductDetail/CK/SS12D07VG4NSGAPA?qs=%2fha2pyFadugjks%2fHbHkDhssP9iJkVnkua0Q3TVFHBfbSkpRFT8OjGg%3d%3d

Pad wiring:

B+ to battery positive

F1 & F2 to optional off board momentary switch

VMM to voltmeter measurement wire (white or yellow)

VM+ to voltmeter positive wire (red)

VM- to voltmeter negative wire (black)

Brought to you by http://MosMax.com

Components:

250C style board for the Smart PWM V3 which can be attached with 2.54mm pitch header pins. 0.36" 3-wire voltmeter in cutout.

D1 - https://www.mouser.com/ProductDetail/Lumex/SSL-LX40FT3ID?qs=%2fha2pyFadujxBjlUmTzxXrCIgmGlcT2WBxtU6kQaw6TtNoou84YoUQ%3d%3d

D1-SPACER - https://www.mouser.com/ProductDetail/749-ELM-2-1MM

R1 - 0805 case current limiting resistor for D1. To determine value, look at datasheet for the LED, know the max voltage of your batteries & use an LED resistor calculator

S1, S2, S3 - https://www.mouser.com/ProductDetail/CK/KSC243JLFG?qs=%2fha2pyFaduim0ELFxiNWJQcb7PgIZAVM%252bUtoscAoCxI%3d

S4 - https://www.mouser.com/ProductDetail/CK/SS12D07VG4NSGAPA?qs=%2fha2pyFadugjks%2fHbHkDhssP9iJkVnkua0Q3TVFHBfbSkpRFT8OjGg%3d%3d

SMD Standoffs - https://www.mouser.com/ProductDetail/Wurth-Electronics/9774050943R?qs=%2fha2pyFaduh56NXAtVTpmqJZZkMdaEk9oK79b%2fR28SU49LV19DgYCw%3d%3d

M2 screws for securing SMD standoffs - https://www.ebay.com/itm/M2-x-6mm-Phillips-Flat-Head-Machine-Screws-Steel-w-Black-Ox-Countersunk-DIN-965/123267484421/

Pad wiring:

B+ to battery positive

F1 & F2 to optional off board momentary switch

VMM to voltmeter measurement wire (white or yellow)

VM+ to voltmeter positive wire (red)

VM- to voltmeter negative wire (black)

Brought to you by http://MosMax.com

https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=d2804d4d6a

https://docs.google.com/spreadsheets/d/1hWjVyz7kOyig8Tc2O5w9dPft8KiQWIKVWpvrzCr8sQA/edit?usp=sharing

3 wire VM (connect both the red & white wire to the VM+ pad) - https://www.ebay.com/itm/1pc-Red-Digital-3-Wire-36-LED-Voltmeter-NEW-Model-RR-DIY-Bus-Applications-6r/312136442312

2 wire VM - https://www.ebay.com/itm/2-wire-2-5-30V-36-Red-LED-voltmeter/131793742284/

• Fits 250C enclosures

• Use with 2S/8.4V or 3S/12.6V battery configurations only

• When switched on, VM will display battery voltage. VM will NOT display output voltage (well at max duty cycle, battery voltage & output voltage should be nearly the same)

• LED will light when firing

• Wire board as labeled. Off board, wire battery positive contact to 510 positive pin with 12-16g stranded silicone insulated wire.

• An off board fire switch (optional) can be wire to the pads labeled F1 & F2. S2 can be omitted or remain on the board, your choice, if using an off board fire switch.

• USE OF OFF BOARD OVER CURRENT PROTECTION CIRCUITRY/COMPONENTS HIGHLY RECOMMENDED

• Corners of VM cutout will have radii, you’ll need to slightly file them to square (WEAR A DUST MASK)

Brought to you by http://MosMax.com

Drill template, schematic, PCB design and CAD files - https://www.dropbox.com/sh/w0t70y3xsziw7q0/AACJRuXHWv5yB7v7swE4hh2ca?dl=0

Components:

Mosfets - https://www.digikey.com/product-detail/en/nexperia-usa-inc/PSMN0R9-25YLC,115/1727-5292-1-ND/2674297

Resistor - https://www.digikey.com/product-detail/en/yageo/RC0805JR-0715KL/311-15KARCT-ND/731205

Switch - https://www.digikey.com/product-detail/en/mec-switches/3ESH9-09.5/679-2216-ND/2034772 or https://www.digikey.com/product-detail/en/omron-electronics-inc-emc-div/B3SL-1005P/SW1203CT-ND/2627376

Mounting hardware:

“#0-80” screws, standoffs & washers:

https://www.mcmaster.com/91780a020

https://www.mcmaster.com/#91771a053/

https://www.mcmaster.com/#91772a051/

https://www.mcmaster.com/#92146a510/

Wiring:

Wire as labeled with 14-16 gauge silicone insulated wire (large pads) and 20-24 gauge (small pad).

Off board - wire battery positive to 510 positive with 14-16 gauge.