Nā hiʻohiʻona huahana
■ Paʻa paʻa a hilinaʻi loa
■ DLD haahaa loa
■ Hoʻolālā alapine kiʻekiʻe
Nā noi
- He mau noi ākea ka SMD 2520 XT22M4 thermistor crystal, i hoʻopaʻa ʻia no nā kelepona 5G, GPS, IoT sensors, a me nā hāmeʻa lihi AI.
Nā mea maikaʻi o ka huahana
ʻOi aku ka paʻa o ka wela:
Hoʻohui i ka thermistor + TCXO uku no ka pololei ± 5ppm, ʻoi aku ka maikaʻi o nā kristal maʻamau i nā hiʻohiʻona drift thermal.
Uku
Hoʻemi i ke kumukūʻai BOM me nā TCXO kuʻuna me ka mālama ʻana i ke kūpaʻa like.
palapala hōʻoia
ʻO ka moʻo SMD Thermistor Crystal 2520 XT22M4 i hoʻokō piha me RoHS/REACH-hōʻoia, alakaʻi-free, a halogen-free.
FAQ
Q1: Pehea e ho'āʻo ai i kahi Crystal Thermistor?
A: 1) E nānā i nā loli kū'ē me ka mahana (NTC/PTC).
2) E nānā i ke kūpaʻa alapine (± ppm) ma lalo o ke kaumaha wela.
3) E hōʻoia i ka oscillation; inā ʻaʻole, e nānā i ka pae hoʻouka.
Nīnau 2: Nā pilikia maʻamau a me nā hopena no ka Thermistor Crystal?
A: Puka 1: Kaʻauheʻe pinepine ʻana
Ke kumu: ʻAʻole hiki i ka Thermistor kahiko/uku kaapuni
Hoʻoponopono: Hoʻololi i ka kristal a nānā i ka pūnaewele uku
Puka 2: ʻAʻohe Oscillation
Ke kumu: Hoʻouka i ka capacitance mismatch/ʻino ka hoʻolālā PCB
Hoʻoponopono: Hoʻoponopono i ka mana a i ʻole ka hoʻokele ʻana (e pale i nā hōʻailona -wikiwiki kiʻekiʻe)
Puka 3: Poino kūʻai
Cause: Reflow temperature too high (>260 degere)
Hoʻoponopono: E hahai i ka ʻaoʻao kūʻai aku (preheat → reflow → cooling)
Nā huahana pale: smd thermistor crystal 2520, Kina smd thermistor crystal 2520 mea hana, mea hoʻolako
