สวิตช์อุณหภูมิเซรามิกและ Bakelite KSD301

The following is a core comparison and selection guide for ceramic and Bakelite ‌KSD301 temperature switches. Comprehensive technical parameters and application scenario analysis:
1. Comparison of core material characteristics‌

คุณสมบัติ	Ceramic material	Bakelite material
‌Temperature resistance limit‌	>300℃ (long-term stability)	≤150℃ (easy to deform and age above 160℃)
‌Thermal conductivity‌	High thermal conductivity (20-30W/m•K), ความเร็วในการตอบสนองที่รวดเร็ว	Low thermal conductivity (about 0.3W/m•K), delayed response
‌Insulation strength‌	Breakdown voltage ≥10kV, strong electrical isolation	Low breakdown voltage (depends on thickness)
Corrosion resistance	Resistant to chemical corrosion, suitable for acid and alkali environment	Suitable to organic solvent erosion
Mechanical strength	High hardness (Mohs 7), wear resistance	Medium strength, easy to process

เคล็ดลับ: 150℃เป็นจุดแบ่งเขตการเลือกวัสดุ. นางแบบเซรามิก (เช่น KSD302) มีข้อบังคับเหนืออุณหภูมินี้.

KSD301 SPECIFICATION，Ceramic and Bakelite KSD301 parameter download

การเปรียบเทียบระหว่าง Bakelite KSD301 และ Ceramic KSD302

Bakelite KSD301 temperature switch

Ceramic KSD302 temperature switch

2. Models and applicable scenarios‌

พารามิเตอร์‌	Ceramic model (เช่น KSD302)	Bakelite model (KSD301)
‌Action temperature range‌	45℃~300℃ (supports ultra-high temperature control)	40℃~250℃ (conventional temperature range)
‌Typical applications‌	– Industrial furnace, การป้องกันความร้อนสูงเกินไป – Automobile engine heating system – High temperature disinfection equipment	– Water dispenser, เครื่องชงกาแฟ (<100℃) – Small household appliance circuit board – Low voltage heater
‌Protection level‌	ไอพี00 (metal shell grounding)	ไอพี00 (plastic shell)

3. ข้อควรพิจารณาในการคัดเลือก

‌Temperature sensitivity‌
If the instantaneous temperature of the equipment may be greater than 150℃ (such as motor stalling, dry burning), the ceramic model must be selected to avoid Bakelite melting and short circuit.
‌Cost and maintenance‌
The unit price of the Bakelite model is low (about ¥1.3~2.5), and the ceramic model is 30%~50% more expensive but has a longer life.
‌Installation compatibility‌
Pay attention to the brittleness of the ceramic model to avoid mechanical extrusion; the Bakelite model is prohibited from welding terminals (high temperature damage).

‌Fourth, Operation Suggestions‌
นางเงือกคัดลอกรหัส
กราฟ LR
ก[Equipment operating temperature] –>|≤150℃| บี[Select bakelite KSD301]
ก –>|> 150 ℃| ค[Select ceramic KSD302]
บี –> ดี[Check load current ≤15A]
ค –> อี[Reserve heat dissipation space]

▶️ ‌Summary‌: The bakelite model is cost-effective and suitable for daily household appliances; the ceramic model is just needed in high temperature and corrosive scenes and is more reliable for long-term use.