TQW42 Conductive Tantalum Capacitor
“Slim profile (L7.3×W6.0×H4.2), Bottom-side terminals, low ESL, Low ESR, high ripple current, RoHS compliant”
Shanghai Yongming Electronic
Shanghai Yongming Electronic is a Manufacturing company in China.
Products & services
YMIN Solid-Liquid Hybrid Capacitors
“Automotive-grade capacitors for OBC/DCDC systems in new energy vehicles”
Questions & answers
What are the core advantages of supercapacitors over traditional batteries in video doorbells?
“Supercapacitors offer advantages such as fast charging in seconds, an extremely long cycle life (typically tens to hundreds of thousands of cycles), high peak current support, wide operating temperature range (-40°C to +70°C), and safety/environmental friendliness.”
Is the operating temperature range suitable for outdoor video doorbell applications?
“Yes, supercapacitors' wide operating temperature range (-40°C to +70°C) makes them well-suited for outdoor environments, ensuring stable operation in extreme weather conditions.”
What precautions should be taken during supercapacitor installation?
“Check polarity markings before installation as reverse connection can severely degrade performance. Charging circuits should have overvoltage protection and current limiting.”
How do supercapacitors meet instantaneous high power requirements?
“With low internal resistance (ESR), supercapacitors can provide high peak currents needed for video recording, encoding, transmission, and wireless communication.”
Why do supercapacitors have longer cycle life than batteries?
“Supercapacitors store energy through physical electrostatic adsorption rather than chemical reactions, resulting in extremely long cycle life and reduced maintenance costs.”
How does miniaturization benefit video doorbell design?
“Miniaturized supercapacitors (e.g., diameter of a few millimeters) allow for thinner, lighter, and more aesthetically pleasing doorbell designs.”
Why is voltage balancing necessary for series-connected supercapacitors?
“Voltage balancing prevents uneven voltage distribution that could cause overvoltage damage. Achieved through passive balancing (parallel resistors) or active balancing (dedicated ICs).”
What common faults affect supercapacitor performance?
“Common issues include capacity decay, increased internal resistance (ESR), leakage, and short circuits caused by material aging or structural damage.”
Data formats & record details
Download this profile and inspect its supporting evidence.
- Entity ID
- urn:readyscan:entity:shanghai-yongming-electronic-q136298701
- Material fingerprint
- fnv1a64:763b0bb010b22154
- Entity revision
- fnv1a64:73c433111d03efce
- Published
- 2026-10-25
- Modified
- 2026-10-25
- Source summary
- Shanghai Yongming Electronic: Manufacturing company in China. Website: https://www.ymin.cn/