Shenzhen Jingfeihong Technology Co., Ltd.
1st Floor, Factory Building No.6, Hekan Village, BanTian Street, Longgang District, Shenzhen, Guangdong, China
Cao Yangfu
+86 15601649610
Dimensions PCBA: 17.5mm × 24.8mm × 1.6mm Coil: Circular (25mm diameter / 0.8mm thickness) or Square (30mm×23mm×0.8mm); customizable in 20-35mm multiple specifications. Electrical Performance Output Voltage & Current: 5V ≤1A (adjustable) Conversion Efficiency: 70-80% Operating Frequency: 100-200kHz Induction Distance: 3-10mm (depends on transmitter) Protection Functions: Over-temperature, over-voltage, over-current, reverse current protection. Features Plug-and-play: Simply align the receiver coil with any QI standard transmitting panel to get power. Enables full enclosure of the whole device, achieving waterproof and dustproof performance to extend service life. On-board LED indicator: Blue light stays on when powered; red light on when charging lithium battery, turns blue when fully charged. Typical Applications Bluetooth headsets, smart bracelets, LED vanity mirrors, electric shavers, car air fresheners, waterproof toys, medical micropumps, adult products and other products that require 5V power supply and have extremely small structural space. Installation Tips Keep the receiver coil and transmitter coil coaxial with a spacing of 1-10mm, avoid metal shielding. For higher current, multiple turns of coils can be paralleled or 5V2A solution can be selected; however, it is recommended that the load of Mini-sized products ≤1A to avoid excessive temperature rise.
# Mini Wireless Charging Receiver Module (QI CP2031) This product adopts highly integrated **CP2031 5W receiver SoC**, compliant with **WPC Qi V1.2.4** standard. It supports plug‑and‑play on any standard Qi transmitter, providing a truly **hole‑free power solution** for space‑limited 5V low‑power devices. PCBA size: only **17.5mm × 24.8mm × 1.6mm** Receiver coil: **Φ25mm × 0.8mm** Total weight: **＜3g** Can be easily embedded into compact cavities such as Bluetooth earphones, smart bracelets, electric toothbrushes, LED vanity mirrors, personal care devices, kids’ toys, etc., instantly upgrading products with **waterproof, dustproof and wireless charging** advantages. ## Electrical Characteristics - Output: 5V ≤1A, ripple ＜120mV - Efficiency: 70–80% (5W transmitter, 3mm air gap) - Operating frequency: 100–200kHz - Induction distance: 0–10mm (depends on transmitter) - Protection: built‑in over‑temperature, over‑voltage, over‑current, output anti‑backflow. Safe floating charging without external MCU. ## Status Indication Dual on‑board LEDs: - Blue LED on: powering load directly - Red LED on: charging lithium battery; turns blue when full Supports debugging during development. Can be connected to main control via R/G pins for customized lighting effects. ## Installation Guidelines - Coil center must align with transmitter coil, offset ＜5mm, otherwise efficiency drops sharply. - Magnetic sheet on coil back must fit closely inside housing; avoid shielding by metal screws or battery. - If load current ＞700mA, parallel 100–220µF low‑ESR capacitor at output to reduce ripple and prevent transient dropout. - For IPX7 waterproofing, encapsulate receiver board and coil as a whole, leaving only LED window; 5V output connected to mainboard via Pogo Pin or FPC. ## Compliance & Reliability - Meets CE / FCC / Qi draft emission requirements - Passed 2kV contact ESD and 4kV air ESD test - 36h 5W full‑load aging: coil temperature rise ＜65℃, chip surface ＜78℃, supports short‑time operation at 85℃ in‑vehicle environment - Operating temperature: **-20℃ ～ +85℃** (industrial grade) - MTBF ＞10,000 hours