WMZ12A Ⅱ过流过载保护PTC热敏电阻器
华巨电子过流保护型PTC热敏电阻主要用于[变压器(适配器)/初级线圈/充电器/数字万用表/智能电度表/微电机/晶体管]等的过流过热保护,直接串联在负载电路中,在线路出现异常状况时,能够自动限制过电流或阻断电流,当故障排除后又恢复原态,俗称“万次保险丝”。
- 商品名称: WMZ12A Ⅱ过流过载保护PTC热敏电阻器
华巨电子是专业的PTC热敏电阻生产厂家华巨电子生产的过流保护PTC广泛应用于各类电子产品,过流保护用PTC热敏电阻是一种对异常温度及异常电流自动保护、自动恢复的保护元件, 俗称"自复保险丝""万次保险丝"。它取代传统的保险丝,可广泛用于马达、变压器、开关电源、电子线路等的过流过热保护, 过流保护用PTC热敏电阻通过其阻值突变限制整个线路中的消耗来减少残余电流值。 传统的保险丝在线路熔断后无法自行恢复,而过流保护用PTC热敏电阻在故障撤除后即可恢复到预保护状态,当再次出现故障时又可以实现其过流过热保护功能 。
1.应用范围:
华巨电子过流保护型PTC热敏电阻主要用于[变压器(适配器)/初级线圈/充电器/数字万用表/智能电度表/微电机/晶体管]等的过流过热保护,直接串联在负载电路中,在线路出现异常状况时,能够自动限制过电流或阻断电流,当故障排除后又恢复原态,俗称“万次保险丝”。
2.特点:
·无触点的电路及元器件保护 ·自动限制过电流
·故障排除后自动恢复 ·工作时无噪音无火花
·工作可靠、使用方便
3.应用原理:
将过流保护型型PTC热敏电阻串联在电源回路中,当电路处于正常状态时,流过PTC的电流小于额定电流,PTC处于常态,阻值很小,不会影响电子镇流器(节能灯、变压器、万用表)等被保护电路的正常工作。当电路电流大大超过额定电流时,PTC陡然发热,阻值骤增至高阻态,从而限制或阻断电流,保护电路不受损坏。电流电流回复正常后,PTC亦自动回复至低阻态,电路恢复正常工作。
过流保护型型PTC热敏电阻在[变压器(适配器)/初级线圈/充电器/数字万用表/智能电度表/微电机/晶体管]等过流保护应用领域,南京华巨凭借其科研和工艺等方面的优势,率先推出了以高耐压(V≥300V AC )为特色的WMZ12A型产品。
3.型号命名外型结构和尺寸:
使用PTC作为过流保护元件,一般应选取最大不动作电流、最大工作电压合适的规格,同时也应考虑元件的外形尺寸、额定零功率电阻、使用温度范围等因素。通常取电路正常工作时的最大工作电流的1.2~1.5倍为PTC最大不动作电流;线路在正常或不正常状态下可能施加到PTC上的电压应不大于其最大工作电压。
4.主要技术参数:
主要用于充电器、微电机、变压器、适配器、电子线路
型号 | 额定电阻值 | 不动作电流 | 动作电流 | 最大工作 | 最大电流 | 居里温度 | 外形尺寸 | |||
R25(Ω) | Int(mA) | @25℃ | 电压 | (mm) | ||||||
±25% | @25℃ | @60℃ | It(mA) | Vmax(V) | Imax(A) | Tc(℃) | Dmax | Tmax | Φd | |
耐压265Vac系列 | ||||||||||
WMZ12A-24P3R7H265 | 3.7 | 575 | 460 | 1150 | 265 | 4.3 | 120 | 25.0 | 5.0 | 0.6 |
WMZ12A-20P3R7H265 | 3.7 | 530 | 430 | 1050 | 265 | 4.3 | 22.0 | 5.0 | 0.6 | |
WMZ12A-19P6R0H265 | 6 | 413 | 330 | 825 | 265 | 3.1 | 21.0 | 5.0 | 0.6 | |
WMZ12A-16P6R0H265 | 6 | 390 | 300 | 780 | 265 | 3.1 | 17.5 | 5.0 | 0.6 | |
WMZ12A-16P7R0H265 | 7 | 350 | 280 | 700 | 265 | 3.1 | 17.5 | 5.0 | 0.6 | |
WMZ12A-16P10RH265 | 10 | 260 | 210 | 525 | 265 | 1.8 | 17.5 | 5.0 | 0.6 | |
WMZ12A-16P22RH265 | 22 | 220 | 175 | 440 | 265 | 1.8 | 17.5 | 5.0 | 0.6 | |
WMZ12A-15P10RH265 | 10 | 250 | 200 | 500 | 265 | 1.8 | 16.0 | 5.0 | 0.6 | |
WMZ12A-13P10RH265 | 10 | 260 | 200 | 520 | 265 | 1.8 | 14.0 | 5.0 | 0.6 | |
WMZ12A-13P12RH265 | 12 | 225 | 180 | 450 | 265 | 1.8 | 14.0 | 5.0 | 0.6 | |
WMZ12A-12P10RH265 | 10 | 250 | 200 | 500 | 265 | 1.8 | 13.5 | 5.0 | 0.6 | |
WMZ12A-12P15RH265 | 15 | 180 | 140 | 350 | 265 | 1.8 | 13.5 | 5.0 | 0.6 | |
WMZ12A-10P15RH265 | 15 | 180 | 140 | 350 | 265 | 1.2 | 11.0 | 5.0 | 0.6 | |
WMZ12A-10P39RH265 | 39 | 130 | 100 | 250 | 265 | 1.2 | 11.0 | 5.0 | 0.6 | |
WMZ12A-08P15RH250 | 15 | 150 | 120 | 300 | 250 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P25RH265 | 25 | 130 | 100 | 250 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P35RH265 | 35 | 115 | 90 | 225 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P45RH265 | 45 | 105 | 80 | 200 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P55RH265 | 55 | 90 | 70 | 180 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-07P82RH265 | 82 | 70 | 50 | 140 | 265 | 0.6 | 8.0 | 5.0 | 0.6 | |
WMZ12A-07P56RH265 | 56 | 90 | 60 | 175 | 265 | 0.6 | 8.0 | 5.0 | 0.6 | |
WMZ12A-06P33RH250 | 33 | 110 | 85 | 200 | 250 | 0.4 | 7.0 | 5.0 | 0.6 | |
WMZ12A-05P70RH265 | 70 | 65 | 50 | 130 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05P85RH265 | 85 | 60 | 45 | 120 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05P39RH250 | 39 | 80 | 65 | 160 | 250 | 0.2 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05P121H265 | 120 | 45 | 35 | 90 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05P181H265 | 180 | 40 | 30 | 80 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-04P70RH250 | 70 | 50 | 40 | 100 | 250 | 0.2 | 5.5 | 5.0 | 0.6 | |
WMZ12A-04P121H265 | 120 | 40 | 30 | 80 | 265 | 0.2 | 5.5 | 5.0 | 0.6 | |
WMZ12A-03P151H250 | 150 | 40 | 30 | 75 | 250 | 0.2 | 4.5 | 5.0 | 0.5 | |
WMZ12A-10N12RH250 | 12 | 170 | 130 | 340 | 250 | 1.2 | 100 | 11.0 | 5.0 | 0.6 |
WMZ12A-10N18RH265 | 18 | 145 | 110 | 290 | 265 | 1.2 | 11.0 | 5.0 | 0.6 | |
WMZ12A-10N22RH265 | 22 | 125 | 90 | 250 | 265 | 1.2 | 11.0 | 5.0 | 0.6 | |
WMZ12A-07N22RH250 | 22 | 120 | 90 | 225 | 250 | 0.5 | 8.0 | 5.0 | 0.6 | |
WMZ12A-05N151H265 | 150 | 38 | 30 | 80 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05N301H265 | 300 | 27 | 20 | 55 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05N601H265 | 600 | 20 | 15 | 40 | 265 | 0.2 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05N102H265 | 1000 | 15 | 12 | 30 | 265 | 0.2 | 6.5 | 5.0 | 0.6 | |
WMZ12A-04N151H265 | 150 | 36 | 28 | 80 | 265 | 0.3 | 5.5 | 5.0 | 0.6 | |
WMZ12A-03N151H265 | 150 | 33 | 25 | 65 | 265 | 0.2 | 4.5 | 5.0 | 0.5 | |
WMZ12A-03N101H250 | 100 | 40 | 30 | 80 | 250 | 0.2 | 4.5 | 5.0 | 0.5 | |
WMZ12A-03N70RH250 | 70 | 45 | 35 | 90 | 250 | 0.1 | 4.5 | 5.0 | 0.5 | |
WMZ12A-08M12RH250 | 12 | 120 | 70 | 220 | 250 | 0.8 | 80 | 9.0 | 5.0 | 0.6 |
WMZ12A-08M25RH265 | 25 | 85 | 50 | 170 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08M35RH265 | 35 | 80 | 50 | 150 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08M50RH265 | 50 | 60 | 40 | 120 | 265 | 1.0 | 9.0 | 5.0 | 0.6 | |
WMZ12A-07M101H265 | 100 | 50 | 30 | 100 | 265 | 0.6 | 8.0 | 5.0 | 0.6 | |
WMZ12A-05M70RH250 | 70 | 50 | 30 | 100 | 250 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-05M121H265 | 120 | 30 | 20 | 60 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-03M101H250 | 100 | 25 | 18 | 55 | 250 | 0.2 | 4.5 | 5.0 | 0.5 | |
WMZ12A-03M151H265 | 150 | 22 | 15 | 45 | 265 | 0.2 | 4.5 | 5.0 | 0.5 | |
变压器保护(嵌入变压器线包内) | ||||||||||
WMZ12A-05N121H265 | 120 | 45 | 25 | 90 | 265 | 0.4 | 100 | 6.5 | 5.0 | 0.6 |
WMZ12A-05N151H265 | 150 | 38 | 20 | 80 | 265 | 0.4 | 6.5 | 5.0 | 0.6 | |
WMZ12A-07N22RH265 | 22 | 110 | 60 | 220 | 265 | 0.7 | 8.0 | 4.5 | 0.6 | |
WMZ12A-07N32RH265 | 32 | 95 | 50 | 190 | 265 | 0.7 | 8.0 | 4.5 | 0.6 | |
WMZ12A-07N55RH265 | 55 | 70 | 40 | 140 | 265 | 0.7 | 8.0 | 5.0 | 0.6 | |
WMZ12A-08N30RH265 | 30 | 100 | 55 | 200 | 265 | 1.0 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08N35RH265 | 35 | 90 | 50 | 180 | 265 | 1.0 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08N40RH265 | 40 | 85 | 45 | 170 | 265 | 1.0 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08N39RH265 | 39 | 95 | 50 | 180 | 265 | 1.2 | 9.5 | 5.0 | 0.6 | |
WMZ12A-08N25RH265 | 25 | 110 | 60 | 220 | 265 | 1.2 | 9.5 | 5.0 | 0.6 | |
WMZ12A-10N22RH265 | 22 | 125 | 70 | 250 | 265 | 1.5 | 11.0 | 5.0 | 0.6 | |
WMZ12A-10N18RH265 | 18 | 145 | 80 | 290 | 265 | 1.5 | 11.0 | 5.0 | 0.6 | |
WMZ12A-10N12RH265 | 12 | 170 | 95 | 340 | 265 | 1.5 | 11.0 | 5.0 | 0.6 | |
WMZ12A-12N22RH265 | 22 | 125 | 100 | 250 | 265 | 2.0 | 13.5 | 5.0 | 0.6 | |
WMZ12A-12N18RH265 | 18 | 180 | 100 | 360 | 265 | 2.0 | 13.5 | 5.0 | 0.6 | |
WMZ12A-12N12RH265 | 12 | 210 | 120 | 420 | 265 | 2.0 | 13.5 | 5.0 | 0.6 | |
WMZ12A-15N18RH265 | 18 | 170 | 140 | 350 | 265 | 2.0 | 16.5 | 5.0 | 0.6 | |
变压器保护(不嵌入变压器线包内) | ||||||||||
WMZ12A-16P6R0H265 | 6 | 390 | 300 | 780 | 265 | 3.1 | 120 | 17.5 | 5.0 | 0.6 |
WMZ12A-13P10RH265 | 10 | 260 | 200 | 520 | 265 | 1.8 | 14.0 | 5.0 | 0.6 | |
WMZ12A-12P10RH265 | 10 | 250 | 200 | 500 | 265 | 1.8 | 13.5 | 5.0 | 0.6 | |
WMZ12A-10P15RH265 | 15 | 180 | 140 | 350 | 265 | 1.2 | 11.0 | 5.0 | 0.6 | |
WMZ12A-08P25RH265 | 25 | 130 | 100 | 250 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P35RH265 | 35 | 115 | 90 | 225 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P45RH265 | 45 | 105 | 80 | 200 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-08P55RH265 | 55 | 90 | 70 | 180 | 265 | 0.8 | 9.0 | 5.0 | 0.6 | |
WMZ12A-05P70RH265 | 70 | 65 | 50 | 130 | 265 | 0.3 | 6.5 | 5.0 | 0.6 | |
WMZ12A-03P151H250 | 150 | 40 | 30 | 75 | 250 | 0.2 | 4.5 | 5.0 | 0.5 |
关键词:
WMZ12A Ⅱ过流过载保护PTC热敏电阻器
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