500W 可调瓷管电阻(精密线绕) 阻值可调

功率瓷管式可调电阻器RX20

 

特点（Features） 

 

1. 耐热、温度系数小、短时间过负载能力大；
2. 表面涂漆为绿色不燃性面漆。
3. 阻值是可调的。

 

 

规格尺寸（Specifications and Dimensions）:

品名功率 Part .	尺寸						成型类型
	L1&plun;2	L2&plun;2	L3&plun;2	L4&plun;2	H1&plun;1	H2&plun;2
50W	82	100	114	140	30	58	HPR
100W	132	150	174	200	30	58	HPR
150W	162	180	194	220	30	58	HPR
200W	204	225	240	265	30	58	HPR
250W	292	310	324	350	30	58	HPR
300W	258	270	285	328	41	85	HPR
400W	322	344	360	406	41	85	HPR
500W	322	344	355	406	51	95	HPR
1000W	290	315	325	375	71	110	HPR
1500W	405	420	435	505	71	110	HPR
2000W	495	525	540	610	71	110	HPR

 

电气特性（Electrical  Performance）:

项目	性能要求	调试方法
温度系数	-350ppm/°C≤d≤+350ppm/°C	JIS5202－5.2
短时间过负载	△R≤&plun;(2%R0+0.1R)	JIS5202－5.2
焊接耐热性	△R≤&plun;(1%R0+0.1R)	JIS5202－6.4
不燃性	不可有明显火焰	SJ3272-90
耐湿负荷寿命	△R≤&plun;(5%R0+0.1R)	JIS5202－7.9
耐温负荷寿命	△R≤&plun;(5%R0+0.1R)	JIS5202－7.10

 

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