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1.軟啟動(dòng)充電電阻應(yīng)用范圍：
高壓大容量儲(chǔ)能電容充電保護(hù)熱敏電阻是華巨電子專門應(yīng)用于充儲(chǔ)能電容充電保護(hù)用熱敏電阻，儲(chǔ)能電容初始充電電流進(jìn)行限制，防止上電開機(jī)因儲(chǔ)能電容充電電流過大引起設(shè)備損壞,防止大浪涌電流對設(shè)備的破壞。
高壓大容量儲(chǔ)能電容大量地應(yīng)用于工業(yè)產(chǎn)品中，由于電容兩端電壓不能躍變的特性，在系統(tǒng)開機(jī)的瞬間，電網(wǎng)能量往電容的灌電流往往達(dá)到上百安培的峰值水平，如此高的開機(jī)電流嚴(yán)重威脅電路中的整流器件與過流保險(xiǎn)絲，同時(shí)也會(huì)給公共商業(yè)電網(wǎng)帶來很大的諧波污染。因此幾乎所有電路中都設(shè)置了“開機(jī)浪涌抑制電路”，將開機(jī)沖擊電流抑制到合理的水平。
傳統(tǒng)的“浪涌抑制元件”是常見的固定阻值“水泥電阻”，尤其是在千瓦以上功率的產(chǎn)品中，普遍使用大功率“水泥電阻”作為浪涌抑制元件。從開機(jī)浪涌抑制電路設(shè)計(jì)的初衷來看，固定電阻可以滿足設(shè)計(jì)的基本功能—抑制開機(jī)充電電流。
但是固定電阻本身又帶來了新的安全隱患—由于與“浪涌抑制元件”并聯(lián)的繼電器存在不能有效閉合的可能性，如機(jī)械疲勞，驅(qū)動(dòng)故障，負(fù)載故障等情況下，持續(xù)的負(fù)載電流流過這個(gè)阻值較高的固定電阻（常用阻值在10~100歐姆），勢必會(huì)產(chǎn)生極高的溫度，
導(dǎo)致“水泥電阻”冒煙，炸裂等不安全現(xiàn)象，極端情況下PCB會(huì)被高溫熔毀甚至點(diǎn)燃。這是線性電阻在浪涌抑制應(yīng)用中存在的缺陷要解決這個(gè)問題，華巨電子推出具有浪涌抑制功能的正溫度系數(shù)陶瓷熱敏電阻PTC。其獨(dú)特的正溫度系數(shù)特性（即阻值隨溫度增加而加大）能有效抑制器件本身溫度的持續(xù)增加，其溫度變化過程如下:
PTC低溫低阻=〉被電流加熱=〉溫度增加=〉（當(dāng)超過PTC動(dòng)作溫度后）阻值增大=〉電流減小=〉熱功率減小=〉PTC阻值繼續(xù)增大（直到幾十KΩ）=〉發(fā)熱與散熱平衡=〉PTC溫度維持在動(dòng)作點(diǎn)附近（約130~150°C）。
從以上分析可以看出，華巨電子的浪涌抑制PTC的“阻值-溫度”正相關(guān)特性使它具有“自保護(hù)”的功能—在繼電器不能閉合的故障情況下，負(fù)載電流產(chǎn)生的熱功率只能將它加熱到居里溫度點(diǎn)附近，有效地避免了類似“水泥電阻”溫度失控的現(xiàn)象，意味著它可以安全地保護(hù)自身，同時(shí)保護(hù)位于其后方的下游電路，而且在繼電器故障排除后，它本身還可以自動(dòng)恢復(fù)原有的功能。
因此，華巨的浪涌抑制PTC為提高開關(guān)電源的安全性與可靠性提供了幫助，是理想的開機(jī)浪涌電流抑制元件，這款產(chǎn)品正逐步廣泛地為空調(diào)、工業(yè)變頻器、電源等行業(yè)提供安全可靠的開機(jī)浪涌保護(hù)。該P(yáng)TC熱敏電阻主要用于數(shù)字化焊機(jī) 、逆變直流手弧焊機(jī)、逆變直流氬弧/手弧焊機(jī)等焊接設(shè)備的過熱、過流保護(hù)。其主要原理為當(dāng)焊接設(shè)備正常工作時(shí)流經(jīng)PTC熱敏電阻的電流不超過其最大工作電流，PTC處于低阻狀態(tài)，當(dāng)出現(xiàn)異常狀態(tài)時(shí)電路電流大大超過額定電流時(shí)，PTC陡然發(fā)熱，阻值驟增至高阻態(tài)，從而限制或阻斷電流，保護(hù)電路不受損壞。電流電流回復(fù)正常后，PTC亦自動(dòng)回復(fù)至低阻態(tài)，電路恢復(fù)正常工作。
大功率電子設(shè)備的輸入電路大都采用電容濾波型整流電路，在進(jìn)線電源合閘瞬間，由于電容器上的初始電壓為零，電容器充電瞬間會(huì)形成很大的浪涌電流，特別是大功率大功率電子設(shè)備，采用容量較大的濾波電容器，使浪涌電流達(dá)100A以上。在電源接通瞬間如此大的浪涌電流，重者往往會(huì)導(dǎo)致輸入熔斷器燒斷或合閘開關(guān)的觸點(diǎn)燒壞，整流橋過流損壞；輕者也會(huì)使空氣開關(guān)合不上閘。上述現(xiàn)象均會(huì)造成大功率電子設(shè)備無法正常工作，為此幾乎所有的大功率電子設(shè)備都設(shè)置了防止流涌電流的軟啟動(dòng)電路，以保證電源正常而可
靠運(yùn)行。下圖（1）是采用繼電器K1和限流電阻WMZ13A系列耐沖擊PTC熱敏電阻
構(gòu)成的防浪涌電流電路。電源接通瞬間，輸入電壓經(jīng)整流（D1～D4）和限流電阻RT對濾波電容器C1充電，防止接通瞬間的浪涌電流，同時(shí)輔助電源Vcc經(jīng)電阻R2對并接于繼電器K1線包的電容器C2充電，當(dāng)C2上的電壓達(dá)到繼電器K1的動(dòng)作電壓時(shí)，K1動(dòng)作，其觸點(diǎn)K1.1閉合而旁路限流電阻R1，電源進(jìn)入正常運(yùn)行狀態(tài)。限流的延遲時(shí)間取決于時(shí)間常數(shù)（R2C2），通常選取為0.3～0.5s。為了提高延遲時(shí)間的準(zhǔn)確性及防止繼電器動(dòng)作抖動(dòng)振蕩，延遲電路可采
用圖2所示電路替代RC延遲電路。
逆變電源原理圖
圖（1）
其中紅色框中的RT為有良好的耐沖擊性的MZFLY系列耐沖擊PTC熱敏電阻
圖（2）
1.主要技術(shù)參數(shù)
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型號(hào)
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零功率電阻R25
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最大電壓
|
熱容量
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最大不動(dòng)作能量
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最大負(fù)載允許電容量
|
工作溫度
|
|
(Ω)
|
Vmax
|
Cth(J/K)
|
ENon(J)
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環(huán)境溫度25℃
|
|
Vac
|
Vdc
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25℃環(huán)境溫度下
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40℃環(huán)境溫度下
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60℃環(huán)境溫度下
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(uF)
|
℃
|
|
單項(xiàng)工頻電壓Vac=240V
|
|
MZFLY-06D120T30RH-260
|
30
|
260
|
370
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0.15
|
14
|
12
|
9
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320
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-55～85
|
|
MZFLY-06D120T40RH-260
|
40
|
|
MZFLY-06D120T50RH-260
|
50
|
|
MZFLY-06D120T60RH-260
|
60
|
|
MZFLY-06D120T70RH-260
|
70
|
|
MZFLY-06D120T80RH-260
|
80
|
|
MZFLY-06D120T101RH-260
|
100
|
|
MZFLY-06D120T121RH-260
|
120
|
|
MZFLY-06D120T151RH-260
|
150
|
|
MZFLY-06D120T201RH-260
|
200
|
|
MZFLY-06D120T251RH-260
|
250
|
|
MZFLY-06D120T301RH-260
|
300
|
|
MZFLY-06D120T401RH-260
|
400
|
|
MZFLY-06D120T501RH-260
|
500
|
|
MZFLY-06D120T701RH-260
|
700
|
|
MZFLY-06D120T801RH-260
|
800
|
|
MZFLY-06D120T102RH-260
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1000
|
|
MZFLY-08D120T30RH-260
|
30
|
0.3
|
28
|
24
|
18
|
640
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MZFLY-08D120T40RH-260
|
40
|
|
MZFLY-08D120T50RH-260
|
50
|
|
MZFLY-08D120T60RH-260
|
60
|
|
MZFLY-08D120T70RH-260
|
70
|
|
MZFLY-08D120T80RH-260
|
80
|
|
MZFLY-08D120T101RH-260
|
100
|
|
MZFLY-08D120T121RH-260
|
120
|
|
MZFLY-08D120T151RH-260
|
150
|
|
MZFLY-08D120T201RH-260
|
200
|
|
MZFLY-08D120T251RH-260
|
250
|
|
MZFLY-08D120T301RH-260
|
300
|
|
MZFLY-08D120T401RH-260
|
400
|
|
MZFLY-08D120T501RH-260
|
500
|
|
MZFLY-08D120T701RH-260
|
700
|
|
MZFLY-08D120T801RH-260
|
800
|
|
MZFLY-08D120T102RH-260
|
1000
|
|
MZFLY-09D120T15RH-260
|
15
|
0.4
|
38
|
32
|
24
|
800
|
|
MZFLY-09D120T20RH-260
|
20
|
|
MZFLY-09D120T30RH-260
|
30
|
|
MZFLY-09D120T40RH-260
|
40
|
|
MZFLY-09D120T50RH-260
|
50
|
|
MZFLY-09D120T60RH-260
|
60
|
|
MZFLY-09D120T70RH-260
|
70
|
|
MZFLY-09D120T80RH-260
|
80
|
|
MZFLY-09D120T101RH-260
|
100
|
|
MZFLY-09D120T121RH-260
|
120
|
|
MZFLY-09D120T151RH-260
|
150
|
|
MZFLY-09D120T201RH-260
|
200
|
|
MZFLY-09D120T251RH-260
|
250
|
|
MZFLY-09D120T301RH-260
|
300
|
|
MZFLY-09D120T401RH-260
|
400
|
|
MZFLY-09D120T501RH-260
|
500
|
|
MZFLY-09D120T801RH-260
|
800
|
|
MZFLY-09D120T102RH-260
|
1000
|
|
MZFLY-11D120T10RH-260
|
10
|
0.6
|
57
|
48
|
36
|
1300
|
|
MZFLY-11D120T15RH-260
|
15
|
|
MZFLY-11D120T20RH-260
|
20
|
|
MZFLY-11D120T30RH-260
|
30
|
|
MZFLY-11D120T40RH-260
|
40
|
|
MZFLY-11D120T50RH-260
|
50
|
|
MZFLY-11D120T60RH-260
|
60
|
|
MZFLY-11D120T70RH-260
|
70
|
|
MZFLY-11D120T80RH-260
|
80
|
|
MZFLY-11D120T101RH-260
|
100
|
|
MZFLY-11D120T121RH-260
|
120
|
|
MZFLY-11D120T151RH-260
|
150
|
|
MZFLY-11D120T201RH-260
|
200
|
|
MZFLY-11D120T251RH-260
|
250
|
|
MZFLY-11D120T301RH-260
|
300
|
|
MZFLY-11D120T401RH-260
|
400
|
|
MZFLY-11D120T501RH-260
|
500
|
|
MZFLY-11D120T801RH-260
|
800
|
|
MZFLY-11D120T102RH-260
|
1000
|
|
MZFLY-14D120T6R0H-260
|
6
|
1.0
|
95
|
80
|
60
|
2100
|
|
MZFLY-14D120T10RH-260
|
10
|
|
MZFLY-14D120T15RH-260
|
15
|
|
MZFLY-14D120T18RH-260
|
18
|
|
MZFLY-14D120T20RH-260
|
20
|
|
MZFLY-14D120T25RH-260
|
25
|
|
MZFLY-14D120T30RH-260
|
30
|
|
MZFLY-14D120T40RH-260
|
40
|
|
MZFLY-14D120T45RH-260
|
45
|
|
MZFLY-14D120T50RH-260
|
50
|
|
MZFLY-14D120T70RH-260
|
70
|
|
MZFLY-14D120T80RH-260
|
80
|
|
MZFLY-14D120T101RH-260
|
100
|
|
MZFLY-14D120T121RH-260
|
120
|
|
MZFLY-14D120T151RH-260
|
150
|
|
MZFLY-14D120T201RH-260
|
200
|
|
MZFLY-14D120T251RH-260
|
250
|
|
MZFLY-14D120T301RH-260
|
300
|
|
MZFLY-14D120T401RH-260
|
400
|
|
MZFLY-14D120T501RH-260
|
500
|
|
MZFLY-14D120T801RH-260
|
800
|
|
MZFLY-14D120T102RH-260
|
1000
|
|
MZFLY-14D120T6R0H-260
|
6
|
1.5
|
143
|
120
|
90
|
3200
|
|
MZFLY-18D120T10RH-260
|
10
|
|
MZFLY-18D120T15RH-260
|
15
|
|
MZFLY-18D120T18RH-260
|
18
|
|
MZFLY-18D120T20RH-260
|
20
|
|
MZFLY-18D120T25RH-260
|
25
|
|
MZFLY-18D120T30RH-260
|
30
|
|
MZFLY-18D120T40RH-260
|
40
|
|
MZFLY-18D120T45RH-260
|
45
|
|
MZFLY-18D120T50RH-260
|
50
|
|
MZFLY-18D120T70RH-260
|
70
|
|
MZFLY-18D120T80RH-260
|
80
|
|
MZFLY-18D120T101RH-260
|
100
|
|
MZFLY-18D120T121RH-260
|
120
|
|
MZFLY-18D120T151RH-260
|
150
|
|
MZFLY-18D120T201RH-260
|
200
|
|
MZFLY-18D120T251RH-260
|
250
|
|
MZFLY-18D120T301RH-260
|
300
|
|
MZFLY-18D120T401RH-260
|
400
|
|
MZFLY-18D120T501RH-260
|
500
|
|
MZFLY-18D120T801RH-260
|
800
|
|
MZFLY-18D120T102RH-260
|
1000
|
|
MZFLY-20D120T6R0H-260
|
6
|
1.9
|
180
|
152
|
114
|
4000
|
|
MZFLY-20D120T10RH-260
|
10
|
|
MZFLY-20D120T15RH-260
|
15
|
|
MZFLY-20D120T18RH-260
|
18
|
|
MZFLY-20D120T20RH-260
|
20
|
|
MZFLY-20D120T25RH-260
|
25
|
|
MZFLY-20D120T30RH-260
|
30
|
|
MZFLY-20D120T40RH-260
|
40
|
|
MZFLY-20D120T45RH-260
|
45
|
|
MZFLY-20D120T50RH-260
|
50
|
|
MZFLY-20D120T70RH-260
|
70
|
|
MZFLY-20D120T80RH-260
|
80
|
|
MZFLY-20D120T101RH-260
|
100
|
|
MZFLY-20D120T121RH-260
|
120
|
|
MZFLY-20D120T151RH-260
|
150
|
|
MZFLY-20D120T201RH-260
|
200
|
|
MZFLY-20D120T251RH-260
|
250
|
|
MZFLY-20D120T301RH-260
|
300
|
|
MZFLY-20D120T401RH-260
|
400
|
|
MZFLY-20D120T501RH-260
|
500
|
|
MZFLY-20D120T801RH-260
|
800
|
|
MZFLY-20D120T102RH-260
|
1000
|
|
MZFLY-22D120T3R0H-260
|
3
|
2.4
|
228
|
192
|
144
|
5000
|
|
MZFLY-22D120T4R0H-260
|
4
|
|
MZFLY-22D120T5R0H-260
|
5
|
|
MZFLY-22D120T6R0H-260
|
6
|
|
MZFLY-22D120T10RH-260
|
10
|
|
MZFLY-22D120T15RH-260
|
15
|
|
MZFLY-22D120T18RH-260
|
18
|
|
MZFLY-22D120T20RH-260
|
20
|
|
MZFLY-22D120T25RH-260
|
25
|
|
MZFLY-22D120T30RH-260
|
30
|
|
MZFLY-22D120T40RH-260
|
40
|
|
MZFLY-22D120T45RH-260
|
45
|
|
MZFLY-22D120T50RH-260
|
50
|
|
MZFLY-22D120T70RH-260
|
70
|
|
MZFLY-22D120T80RH-260
|
80
|
|
MZFLY-22D120T101RH-260
|
100
|
|
MZFLY-22D120T121RH-260
|
120
|
|
MZFLY-22D120T151RH-260
|
150
|
|
MZFLY-22D120T201RH-260
|
200
|
|
MZFLY-22D120T251RH-260
|
250
|
|
MZFLY-22D120T301RH-260
|
300
|
|
MZFLY-22D120T401RH-260
|
400
|
|
MZFLY-22D120T501RH-260
|
500
|
|
MZFLY-22D120T801RH-260
|
800
|
|
MZFLY-22D120T102RH-260
|
1000
|
|
MZFLY-27D120T3R0H-260
|
3
|
3.75
|
356
|
300
|
225
|
8000
|
|
MZFLY-27D120T4R0H-260
|
4
|
|
MZFLY-27D120T5R0H-260
|
5
|
|
MZFLY-27D120T6R0H-260
|
6
|
|
MZFLY-27D120T10RH-260
|
10
|
|
MZFLY-27D120T15RH-260
|
15
|
|
MZFLY-27D120T18RH-260
|
18
|
|
MZFLY-27D120T20RH-260
|
20
|
|
MZFLY-27D120T25RH-260
|
25
|
|
MZFLY-27D120T30RH-260
|
30
|
|
MZFLY-27D120T40RH-260
|
40
|
|
MZFLY-27D120T45RH-260
|
45
|
|
MZFLY-27D120T50RH-260
|
50
|
|
MZFLY-27D120T70RH-260
|
70
|
|
MZFLY-27D120T80RH-260
|
80
|
|
MZFLY-27D120T101RH-260
|
100
|
|
MZFLY-27D120T121RH-260
|
120
|
|
MZFLY-27D120T151RH-260
|
150
|
|
MZFLY-27D120T201RH-260
|
200
|
|
MZFLY-27D120T251RH-260
|
250
|
|
MZFLY-27D120T301RH-260
|
300
|
|
MZFLY-27D120T401RH-260
|
400
|
|
MZFLY-27D120T501RH-260
|
500
|
|
MZFLY-27D120T801RH-260
|
800
|
|
MZFLY-27D120T102RH-260
|
1000
|
|
單項(xiàng)工頻電壓260Vac
|
|
MZFLY-14D115T25RH-280
|
25
|
280
|
400
|
1.1
|
100
|
82
|
60
|
1900
|
-55～85
|
|
MZFLY-14D115T50RH-280
|
50
|
|
MZFLY-14D115T80RH-280
|
80
|
|
MZFLY-18D130T22RH-280
|
22
|
1.6
|
168
|
152
|
112
|
3000
|
|
MZFLY-18D130T33RH-280
|
33
|
|
MZFLY-20D130T22RH-280
|
22
|
2.1
|
220
|
200
|
147
|
4000
|
|
MZFLY-20D130T33RH-280
|
33
|
|
三相工頻電壓380Vac
|
|
MZFLY-09D120T70RH-440
|
70
|
440
|
620
|
0.5
|
47.5
|
40
|
30
|
300
|
-55～85
|
|
MZFLY-09D120T80RH-440
|
80
|
|
MZFLY-09D120T101RH-440
|
100
|
|
MZFLY-09D120T121RH-440
|
120
|
|
MZFLY-09D120T151RH-440
|
150
|
|
MZFLY-09D120T201RH-440
|
200
|
|
MZFLY-09D120T251RH-440
|
250
|
|
MZFLY-09D120T301RH-440
|
300
|
|
MZFLY-09D120T401RH-440
|
400
|
|
MZFLY-09D120T501RH-440
|
500
|
|
MZFLY-09D120T701RH-440
|
700
|
|
MZFLY-09D120T801RH-440
|
800
|
|
MZFLY-09D120T102RH-440
|
1000
|
|
MZFLY-11D120T70RH-440
|
70
|
0.8
|
76
|
64
|
48
|
500
|
|
MZFLY-11D120T80RH-440
|
80
|
|
MZFLY-11D120T101RH-440
|
100
|
|
MZFLY-11D120T121RH-440
|
120
|
|
MZFLY-11D120T151RH-440
|
150
|
|
MZFLY-11D120T201RH-440
|
200
|
|
MZFLY-11D120T251RH-440
|
250
|
|
MZFLY-11D120T301RH-440
|
300
|
|
MZFLY-11D120T401RH-440
|
400
|
|
MZFLY-11D120T501RH-440
|
500
|
|
MZFLY-11D120T701RH-440
|
700
|
|
MZFLY-11D120T801RH-440
|
800
|
|
MZFLY-11D120T102RH-440
|
1000
|
|
MZFLY-14D115T121RH-440
|
120
|
1.4
|
126
|
105
|
77
|
800
|
|
MZFLY-14D115T151RH-440
|
150
|
|
MZFLY-14D120T70RH-440
|
70
|
133
|
112
|
84
|
900
|
|
MZFLY-14D120T80RH-440
|
80
|
|
MZFLY-14D120T101RH-440
|
100
|
|
MZFLY-14D120T121RH-440
|
120
|
|
MZFLY-14D120T151RH-440
|
150
|
|
MZFLY-14D120T201RH-440
|
200
|
|
MZFLY-14D120T251RH-440
|
250
|
|
MZFLY-14D120T301RH-440
|
300
|
|
MZFLY-14D120T401RH-440
|
400
|
|
MZFLY-14D120T501RH-440
|
500
|
|
MZFLY-14D120T701RH-440
|
700
|
|
MZFLY-14D120T801RH-440
|
800
|
|
MZFLY-14D120T102RH-440
|
1000
|
|
MZFLY-18D120T70RH-440
|
70
|
2.1
|
200
|
168
|
126
|
1300
|
|
MZFLY-18D120T80RH-440
|
80
|
|
MZFLY-18D120T101RH-440
|
100
|
|
MZFLY-18D120T121RH-440
|
120
|
|
MZFLY-18D120T151RH-440
|
150
|
|
MZFLY-18D120T201RH-440
|
200
|
|
MZFLY-18D120T251RH-440
|
250
|
|
MZFLY-18D120T301RH-440
|
300
|
|
MZFLY-18D120T401RH-440
|
400
|
|
MZFLY-18D120T501RH-440
|
500
|
|
MZFLY-18D120T701RH-440
|
700
|
|
MZFLY-18D120T801RH-440
|
800
|
|
MZFLY-18D120T102RH-440
|
1000
|
|
MZFLY-18D130T56RH-440
|
56
|
220
|
190
|
147
|
1400
|
|
MZFLY-18D135T30RH-440
|
30
|
230
|
200
|
157
|
1500
|
|
MZFLY-20D120T70RH-440
|
70
|
2.6
|
247
|
208
|
156
|
1700
|
|
MZFLY-18D120T80RH-440
|
80
|
|
MZFLY-18D120T101RH-440
|
100
|
|
MZFLY-18D120T121RH-440
|
120
|
|
MZFLY-18D120T151RH-440
|
150
|
|
MZFLY-18D120T201RH-440
|
200
|
|
MZFLY-18D120T251RH-440
|
250
|
|
MZFLY-18D120T301RH-440
|
300
|
|
MZFLY-18D120T401RH-440
|
400
|
|
MZFLY-18D120T501RH-440
|
500
|
|
MZFLY-18D120T701RH-440
|
700
|
|
MZFLY-18D120T801RH-440
|
800
|
|
MZFLY-18D120T102RH-440
|
1000
|
|
MZFLY-18D130T56RH-440
|
56
|
273
|
234
|
182
|
1800
|
|
MZFLY-18D135T30RH-440
|
30
|
286
|
247
|
195
|
1900
|
|
MZFLY-22D120T70RH-440
|
70
|
3.5
|
322
|
280
|
210
|
2200
|
|
MZFLY-22D120T80RH-440
|
80
|
|
MZFLY-22D120T101RH-440
|
100
|
|
MZFLY-22D120T121RH-440
|
120
|
|
MZFLY-22D120T151RH-440
|
150
|
|
MZFLY-22D120T201RH-440
|
200
|
|
MZFLY-22D120T251RH-440
|
250
|
|
MZFLY-22D120T301RH-440
|
300
|
|
MZFLY-22D120T401RH-440
|
400
|
|
MZFLY-22D120T501RH-440
|
500
|
|
MZFLY-22D120T701RH-440
|
700
|
|
MZFLY-22D120T801RH-440
|
800
|
|
MZFLY-22D120T102RH-440
|
1000
|
|
MZFLY-27D120T50RH-440
|
50
|
5.4
|
513
|
432
|
324
|
3400
|
|
MZFLY-27D120T70RH-440
|
70
|
|
MZFLY-27D120T80RH-440
|
80
|
|
MZFLY-27D120T101RH-440
|
100
|
|
MZFLY-27D120T121RH-440
|
120
|
|
MZFLY-27D120T151RH-440
|
150
|
|
MZFLY-27D120T201RH-440
|
200
|
|
MZFLY-27D120T251RH-440
|
250
|
|
MZFLY-27D120T301RH-440
|
300
|
|
MZFLY-27D120T401RH-440
|
400
|
|
MZFLY-27D120T501RH-440
|
500
|
|
MZFLY-27D120T701RH-440
|
700
|
|
MZFLY-27D120T801RH-440
|
800
|
|
MZFLY-27D120T102RH-440
|
1000
|
|
三相工頻電壓420Vac
|
|
MZFLY-18D130T121RH-480
|
120
|
480
|
680
|
2.1
|
220
|
189
|
147
|
1000
|
-55～85
|
|
三相工頻電壓500Vac
|
|
MZFLY-14D110T501RH-560
|
500
|
560
|
800
|
1.4
|
120
|
90
|
70
|
500
|
-55～85
|
|
MZFLY-18D130T101RH-560
|
100
|
560
|
800
|
2.3
|
247
|
207
|
161
|
800
|
|
三相工頻電壓600Vac
|
|
MZFLY-14D120T80RH-680
|
80
|
680
|
1000
|
2.2
|
210
|
176
|
132
|
550
|
-55～85
|
|
MZFLY-14D120T101RH-680
|
100
|
|
MZFLY-14D120T121RH-680
|
120
|
|
MZFLY-14D120T151RH-680
|
150
|
|
MZFLY-14D120T201RH-680
|
200
|
|
MZFLY-14D120T251RH-680
|
250
|
|
MZFLY-14D120T301RH-680
|
300
|
|
MZFLY-14D120T401RH-680
|
400
|
|
MZFLY-14D120T501RH-680
|
500
|
|
MZFLY-14D120T701RH-680
|
600
|
|
MZFLY-14D120T701RH-680
|
700
|
|
MZFLY-14D120T102RH-680
|
1000
|
|
MZFLY-18D120T70RH-680
|
70
|
3.5
|
322
|
280
|
210
|
800
|
|
MZFLY-18D120T80RH-680
|
80
|
|
MZFLY-18D120T101RH-680
|
100
|
|
MZFLY-18D120T121RH-680
|
120
|
|
MZFLY-18D120T151RH-680
|
150
|
|
MZFLY-18D120T201RH-680
|
200
|
|
MZFLY-18D120T251RH-680
|
250
|
|
MZFLY-18D120T301RH-680
|
300
|
|
MZFLY-18D120T401RH-680
|
400
|
|
MZFLY-18D120T501RH-680
|
500
|
|
MZFLY-18D120T701RH-680
|
600
|
|
MZFLY-18D120T701RH-680
|
700
|
|
MZFLY-18D120T102RH-680
|
1000
|
|
MZFLY-20D120T70RH-680
|
70
|
4.5
|
428
|
360
|
270
|
1000
|
|
MZFLY-20D120T80RH-680
|
80
|
|
MZFLY-20D120T101RH-680
|
100
|
|
MZFLY-20D120T121RH-680
|
120
|
|
MZFLY-20D120T151RH-680
|
150
|
|
MZFLY-20D120T201RH-680
|
200
|
|
MZFLY-20D120T251RH-680
|
250
|
|
MZFLY-20D120T301RH-680
|
300
|
|
MZFLY-20D120T401RH-680
|
400
|
|
MZFLY-20D120T501RH-680
|
500
|
|
MZFLY-20D120T701RH-680
|
600
|
|
MZFLY-20D120T701RH-680
|
700
|
|
MZFLY-20D120T102RH-680
|
1000
|
|
MZFLY-22D120T50RH-680
|
50
|
|
MZFLY-22D120T70RH-680
|
70
|
5.45
|
517
|
436
|
320
|
1300
|
|
MZFLY-22D120T80RH-680
|
80
|
|
MZFLY-22D120T101RH-680
|
100
|
|
MZFLY-22D120T121RH-680
|
120
|
|
MZFLY-22D120T151RH-680
|
150
|
|
MZFLY-22D120T201RH-680
|
200
|
|
MZFLY-22D120T251RH-680
|
250
|
|
MZFLY-22D120T301RH-680
|
300
|
|
MZFLY-22D120T401RH-680
|
400
|
|
MZFLY-22D120T501RH-680
|
500
|
|
MZFLY-22D120T701RH-680
|
600
|
|
MZFLY-22D120T701RH-680
|
700
|
|
MZFLY-22D120T102RH-680
|
1000
|
|
MZFLY-27D120T50RH-680
|
50
|
8.5
|
810
|
680
|
510
|
2000
|
|
MZFLY-27D120T70RH-680
|
70
|
|
MZFLY-27D120T80RH-680
|
80
|
|
MZFLY-27D120T101RH-680
|
100
|
|
MZFLY-27D120T121RH-680
|
120
|
|
MZFLY-27D120T151RH-680
|
150
|
|
MZFLY-27D120T201RH-680
|
200
|
|
MZFLY-27D120T251RH-680
|
250
|
|
MZFLY-27D120T301RH-680
|
300
|
|
MZFLY-27D120T401RH-680
|
400
|
|
MZFLY-27D120T501RH-680
|
500
|
|
MZFLY-27D120T701RH-680
|
600
|
|
MZFLY-27D120T701RH-680
|
700
|
|
MZFLY-27D120T102RH-680
|
1000
|
應(yīng)用和選型
l 典型應(yīng)用電路:
Ⅱ選型
根據(jù)下列公式來選擇充電電容
C
: 濾波電容.
Tc: PTC的居里溫度Ta :環(huán)境溫度
V : 電容器兩端最高充電電壓,電源電壓為交流電，V是交流電的峰值。
K 系數(shù)
直流DC時(shí) K = 1, 三相交流電整流時(shí) K = 0.96, 半波整流時(shí) K =
0.76
當(dāng)單個(gè)PTC浪涌抑制熱敏電阻不能滿足要求時(shí)，可以多只并聯(lián)使用
PTC軟啟動(dòng)電阻最大負(fù)載電容量與電容充滿電電容兩端的電壓平方成反比。所以相同環(huán)境條件下電壓降一半最大負(fù)載電容量可以增大4倍。
PTC所帶電容量計(jì)算工具
EPCOS料號(hào)華巨替代對照表
|
EPCOS（愛普科斯） |
Sinochip(華巨)替代料號(hào) |
|
B59213J0130A020 |
MZFLY-18D130T33RH-280 |
|
B59215J0130A020 |
MZFLY-18D130T22RH-280 |
|
B59217J0130A020 |
MZFLY-18D130T56RH-440 |
|
B59219J0130A020 |
MZFLY-18D130T101RH-560 |
|
B59105J0130A020 |
MZFLY-18D130T22RH-280 |
|
B59107J0130A020 |
MZFLY-18D130T56RH-440 |
|
B59109J0130A020 |
MZFLY-18D130T101RH-560 |
|
B59201J0140B010 |
MZFLY-18D135T20RH-380 |
|
B59202J0135B010 |
MZFLY-18D135T30RH-440 |
|
B59204J0130B010 |
MZFLY-18D130T101RH-560 |
|
B59750B0120A070 |
MZFLY-14D115T25RH-280 |
|
B59751B0120A070 |
MZFLY-14D115T50RH-280 |
|
B59752B0120A070 |
MZFLY-14D115T80RH-280 |
|
B59753B0120A070 |
MZFLY-14D115T121RH-440 |
|
B59754B0120A070 |
MZFLY-14D115T151RH-440 |
|
B59755B0120A070 |
MZFLY-14D110T501RH-560 |
|
B59770B0120A070 |
MZFLY-09D120T70RH-260 |
|
B59771B0120A070 |
MZFLY-09D120T121RH-260 |
|
B59772B0120A070 |
MZFLY-09D120T151RH-260 |
|
B59773B0120A070 |
MZFLY-09D120T501RH-440 |
|
B59412C1130A070 |
MZFLY-18D130T121RH-480 |
|
B59451C1130A070 |
MZFLY-18D130T56RH-440 |
|
B59750C0120A070 |
MZFLY-14D115T25RH-280 |
|
B59751C0120A070 |
MZFLY-14D115T50RH-280 |
|
B59755C0115A070 |
MZFLY-14D115T501RH-560 |
|
