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| Item | specification | unit | Measuring tool | |
| Chip | Length | 58.5±1 | mm | vernier caliper |
| Width | 4.3 ±0.08 | mm | vernier caliper | |
| thickness | 1.4±0.08 | mm | vernier caliper | |
|
No. |
Inspection item | Evaluation standards | Testing tool | Testing method | ||
| 1 | Heater resistance | 9±1.5 | Multimeter | Tested in 25environment | ||
| 2 | Dimensionsmm | (58.5±1)*4.3 ±0.08*1.4±0.08 | vernier caliper | Tested in 25environment | ||
| 3 | Ceramic body strengthKg | 8 | Tensiometer | Put the chip in a specified clamp and rotate the hand shank of tensiometer, then Record the reading of the tensiometer when the chip breaks. | ||
| 4 | Heater leakage currentmA | 2 | Withstand voltage tester | At 30Vdc,Heat the chip to be red with alcohol lamp. the leakage current must be below 2mA | ||
| 5 | Internal resistance() | 3000 | multimeter | Connect a direct voltage(convert the heat voltage of each resistance value referring to the standard of 8.5/13Vdc).When the current keep stable, measuring the resistance between signal electrode ,record the minimum of multimeter | ||
| Electrical property | ||||||
| Output performance | Output performance after environmental test | |||||
| Exhaust temperature | 350 | 850 | 350 | 850 | ||
| 6 | =0.97 | 800±55 | 700±55 | 800±60 | 700±60 | |
| =1.10 | 50±30 | 50±30 | 50±10 | 50±40 | ||
| 7 | 600mv-300mv | 250 | 250 | 100 | 250 | |
| 300mv-600mv | 100 | 60 | 200 | 60 | ||
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