QC PROGRAM QC Chart for Thermistor Temperature Sensor
| SN | Inspection and test item |
Requirement |
Test conditions |
1 |
Resistance and Precision |
Within the requested range |
100% tested in the 25¡æ constant temperature oil vessel |
2 |
B value and Precision |
Within the requested range |
Calculating after separately measuring in the oil vessel of 25¡æ and 85¡æ |
3 |
High temperature storage |
¦¤B/B¡Ü3% No damage |
Store 1000hours in the upper limit temperature |
4 |
Low temperature storage |
¦¤B/B¡Ü3% No damage |
Store 1000hours in the lower limit temperature |
5 |
Low and High temperature cycle |
¦¤B/B¡Ü3% No damage |
Upper Limit Temp 30min<--->Room Temp 30min<--->Lower Limit Temp 30min 1000cycles |
6 |
Heat shock |
¦¤B/B¡Ü3% No damage |
0¡æ 5min<--->100¡æ 5min Water 1500cycles |
7 |
Dampness proof |
¦¤B/B¡Ü3% No damage |
Store 1000hours under 60¡æ£¬98% relative humidity |
8 |
Pull force of connector |
Within the requested range |
Ergometer |
QC Flow Chart for Developing New Product
Client¡¯s drawing/sample and(or) requirements
Design the drawing and technics scheme 
(PFEMA, DFEMA)
Sample trial production 
Failure mode analysis
Sample test 
Sample reliability test
Client tryout
Small batch production
QC scheme
Batch production
QC Program for Batch Production
Raw materials
IQC
Into warehouse
Production
IPQC
FQC
OQC
OUT warehouse
Client
