# Shanghai Yongming Electronic > Manufacturing company in China. - Canonical entity: https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701 - Website listed in the source snapshot: https://www.ymin.cn/ - Category: [Manufacturing](https://directory.readyscan.ai/directory/manufacturing) - Machine record: https://directory.readyscan.ai/discovery/entities/shanghai-yongming-electronic-q136298701.json - Material fingerprint: fnv1a64:763b0bb010b22154 - Entity revision: fnv1a64:73c433111d03efce - Published: 2026-10-25 - Modified: 2026-10-25 ## Products & services ### [TQW42 Conductive Tantalum Capacitor](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-offering-content-native-digital-agencies-a6edd44fa0a40b2e-offering-6d394de2b1a308202876) “Slim profile (L7.3×W6.0×H4.2), Bottom-side terminals, low ESL, Low ESR, high ripple current, RoHS compliant” [Product website](https://www.ymin.cn/tqw42-product/) Sources: https://www.ymin.cn/ ### [YMIN Solid-Liquid Hybrid Capacitors](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-offering-content-native-digital-agencies-a6edd44fa0a40b2e-offering-fa3f16750bea4a082ddf) “Automotive-grade capacitors for OBC/DCDC systems in new energy vehicles” [Product website](https://www.ymin.cn/news_catalog/faq-questions-and-answers-about-capacitors/page/2/) Sources: https://www.ymin.cn/news_catalog/faq-questions-and-answers-about-capacitors/page/2/ ## Questions & answers ### [What are the core advantages of supercapacitors over traditional batteries in video doorbells?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-5a42cb1e41fb84f6400c) “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.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [Is the operating temperature range suitable for outdoor video doorbell applications?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-bc21181d256e97168649) “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.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [What precautions should be taken during supercapacitor installation?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-bca807c689844c956dd9) “Check polarity markings before installation as reverse connection can severely degrade performance. Charging circuits should have overvoltage protection and current limiting.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [How do supercapacitors meet instantaneous high power requirements?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-f7aa4c12e7ff3f7e6436) “With low internal resistance (ESR), supercapacitors can provide high peak currents needed for video recording, encoding, transmission, and wireless communication.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [Why do supercapacitors have longer cycle life than batteries?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-fecf7e921775e9826a5f) “Supercapacitors store energy through physical electrostatic adsorption rather than chemical reactions, resulting in extremely long cycle life and reduced maintenance costs.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [How does miniaturization benefit video doorbell design?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-1a9acdb8b7790d624961) “Miniaturized supercapacitors (e.g., diameter of a few millimeters) allow for thinner, lighter, and more aesthetically pleasing doorbell designs.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [Why is voltage balancing necessary for series-connected supercapacitors?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-664aaeac01a2f7349be0) “Voltage balancing prevents uneven voltage distribution that could cause overvoltage damage. Achieved through passive balancing (parallel resistors) or active balancing (dedicated ICs).” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ### [What common faults affect supercapacitor performance?](https://directory.readyscan.ai/entities/shanghai-yongming-electronic-q136298701#company-answer-content-native-digital-agencies-a6edd44fa0a40b2e-a-46d4b12ed27800b5d15e) “Common issues include capacity decay, increased internal resistance (ESR), leakage, and short circuits caused by material aging or structural damage.” Sources: https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/ ## Company sources - [Shanghai Yongming Electronic website](https://www.ymin.cn/) — ymin.cn · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-a6edd44fa0a40b2e) - [ymin.cn/news_catalog/faq-questions-and-answers-about-capacitors/page/2/](https://www.ymin.cn/news_catalog/faq-questions-and-answers-about-capacitors/page/2/) — ymin.cn · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-654cd8e64cf9edc6) - [ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/](https://www.ymin.cn/news/efficient-and-environmentally-friendly-video-doorbell-energy-solution-ymin-supercapacitor-faq/) — ymin.cn · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-d4fa40d2f8ef545c) - [wikidata.org/wiki/Special:EntityData/Q136298701.json](https://www.wikidata.org/wiki/Special:EntityData/Q136298701.json?revision=2405802677) — wikidata.org · [Related Ready Scan knowledge](https://readyscan.ai/sources/source-6f518ef0bb3ee4da) ## Continue reading - Discover the bounded graph: https://readyscan.ai/api/v1/ai-search/discovery - Retrieve this entity evidence: https://readyscan.ai/api/v1/ai-search/entities/shanghai-yongming-electronic-q136298701/evidence ## Publication boundary - This public-sourced record brings together company information and its sources. 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