Features:
1. Wide operating temperature range, good stability and reliability.
2. Accurate testing can reflect temperature change precisely.
3. Insulating resistance(MΩ): over 100MΩ at DC500 V
The range of resistance under the rated zero power(R25): 0.1-1000k Ω
4. Working temperature range(°C): -50 ~+250°C
5. Thermal time constant(s): within 10-20 sec (in air)
6. The allowable tolerance of R25: F±1% G±2% H±3% J±5% K±10%
7. The range of B value : 3100-4500k
8. The allowable tolerance of B value: ±0.5% ±1% ±2%
9. Dissipation factor :≥ 2mW/°C( In Still Air)
10. Thermal time constant:≤20 S (In Still Air)
11.Rated Power:≤50m W
Changzhou Fengrun Import and Export Co., Ltd. is a professional manufacturer of evaporator & condenser for air-conditioner and refrigerator; Steel tube and other cooling system products.
Currently Fengrun has 22 production lines for evaporator & condenser of air-conditioner, the annual production cpacity is able to reach 4 million PCS, which is the largest production base in China. Under this condition, Fengrun also owns a rollbond workshop with annual capacity 3.5 million PCS, a wire on tube condenser workshop with annual capacity 2.5 million PCS, a wire on tube evaporator workshop with annual capacity 2.0 million PCS, a no-frost(fin type) evaporator workshop with annual capacity 1.0 million PCS.
Otherwise, Fengrun owns a workshop which produces steel tube 30 thousand ton per year and also has sone equipments which can produce copper products such as three-way, three-claw, elbows 3 million PCS and Cu-AL connecting tubes 600 thousand PCS per month.
