Universal Dual Slot 3.7V Li-ion Battery Charger for 18650 Batteries 

Universal Dual Slot 3.7V Li-ion Battery Charger is a practical and efficient charging solution designed for rechargeable lithium-ion batteries commonly used in electronics, DIY projects, flashlights, portable devices, power banks, and battery-powered systems. Designed to support 3.7V lithium-ion cells such as 18650 batteries, the charger provides a convenient way to recharge batteries safely and efficiently. Its dual-slot design allows users to charge two batteries simultaneously, helping save time while ensuring batteries are ready for use when needed

• Voltage Class (Vces): 600 V 
• Rated Current (Ic): 20 A 
• Configuration: 3-phase inverter with reverse-conducting IGBTs and open emitter (low-side emitter pins accessible for phase current monitoring) 
• Package / Case: PG-MDIP-24-1 (DIP 36 x 21 mm, through-hole)
• Integrated Features: Rugged SOI gate driver technology, bootstrap diodes/functionality, over-current shutdown, under-voltage lockout (UVLO) on all channels, built-in NTC temperature monitor, and cross-conduction prevention.
• Typical Applications: Washing machines, refrigerators, room air conditioners, industrial motor drives, and HVAC systems (supporting motor power up to ~1600W–1800W at 10 kHz).

• Manufacturer: Infineon Technologies (CIPOS™ Mini series) 
• Voltage Rating : 600V blocking voltage (450V DC link supply)
• Current Rating: ±4A at 25°C
• Power Device: Reverse-conducting IGBTs with monolithic body diodes
• Gate Driver: Rugged Silicon-on-Insulator (SOI) gate driver with integrated bootstrap functionality
• Protection Features: Overcurrent shutdown undervoltage lockout (UVLO) across all channels, and cross-conduction prevention 
• Package: Dual In-Line Package (DIP) / through-hole mounting
• Target Applications:Washing machines, refrigerators, dishwashers, fans, and low-power motor/inverter drives

• Operating Voltage: Typically 12V DC (with some variants supporting 5V to 24V DC). 
• No-Load Speed: Ranges from 3500 RPM to 5800 RPM depending on the specific model and voltage.
• Current Rating: No-load current is around 0.2A to 0.6A, while stall or maximum current can reach up to 2A–3A. 
• Power Consumption: Around 2.4W (no-load) up to 15W–24W under load.
• Physical Dimensions: Motor body diameter is approximately 35mm–36mm, body length is 50mm–55mm, and the shaft diameter is 3.17mm (or 3mm) with a length of about 13mm–16mm.
• Weight: Roughly 140g to 150g.

• Peak Reverse Voltage : 400 V
• Average Rectified Forward Current: 1.0 A
• Forward Voltage Drop : Max 1.3 V at 1 A
• Reverse Recovery Time: 150 ns
• Peak Forward Surge Current: 30 A (8.3 ms half-sine wave)
• Reverse Leakage Current: 5 µA at 400 V
• Operating Junction Temperature Range: -55°C to +150°C
• Package Type: DO-214AC / SMA (Surface Mount)

CR1220 – 3V-Lithium Coin Battery PCB Mounting, Button, and coin cell batteries are used to power small, portable electronic devices like the keyless entry remote for your car, laser pointers, pocket calculators, implantable cardiac defibrillators, and even artificial cardiac pacemakers.

Features/Specs:

• Model: CR1220
• Type: Lithium, Lithium Button
• Voltage: 3V
• Capacity: 0.04 Ah /40 mAh
• Number of Pins: 2
• PCB Mount

• Tip Type: K-Series (Knife-edge / fine chisel or small bent/conical precision profile)
• Material Composition: Copper oxide core with stainless steel / multi-layer plating and nano-tech anti-oxidation coating
• Temperature Range: 200°C – 480°C (fast thermal recovery and heating within 3–5 seconds)
• Lifespan: Rated for approximately 40,000 to 50,000 (and up to 70,000) soldering joints
• Compatibility: Works with T12, T12-D, T12-X, T12-Plus, Sugon T12, and Quick T12 soldering stations

• Design: Finely pointed SKUS profile engineered for small surface-mount device (SMD) components, integrated circuit (IC) pins, and delicate PCB tracks. 
• Material & Build: Copper oxide core with anti-oxidation nano-coating and special surface treatment to prevent high-temperature blackening. 
• Lifespan: Rated for 40,000 to 50,000 soldering joints (up to 70,000 joints under optimal use). 
• Eco-Friendly: 100% lead-free construction.
• Compatibility: Fits standard T12 series soldering stations.

• Model Type: T12-BJS (Yellow/White packing variant, silver and white finish)
• Material & Construction: Made using imported copper oxide raw material with special molding and surface coating.
• Performance: Features rapid thermal conductivity, stable temperature control, and anti-oxidation properties that prevent the tip from turning black under high heat.
• Lifespan: Rated for approximately 40,000 to 50,000 soldering joints (and up to 70,000 joints for select sizes).
• Eco-Friendly: Lead-free design ensuring fluent tin melting without empty soldering.

• Type: Schottky barrier rectifier 
• Maximum Average Rectified Current ): 1.0 A 
• Repetitive Peak Reverse Voltage : 40 V
• Forward Voltage Drop : Typically around 0.5 V at 1 A
• Peak Forward Surge Current: 30 A to 60 A (depending on the manufacturer datasheet) 
• Operating Temperature Range: -55 °C to 150 °C 
• Package / Mounting: Surface Mount Technology (SMD/SMT), commonly DO-214AC (SMA) or SOD-123