器件名称: SMP2A
功能描述: Surface Mount Power Cross Protection Fuse
文件大小: 297.06KB 共2页
简 介:defining a degree of excellence
Type SMP 2A
Surface Mount Power Cross Protection Fuse
26-Aug-03
SMP Surface mount Power Cross Protection Fuses are primarily intended for use in telecommunication circuit applications requiring low current protection with high surge tolerance. They are typically used to replace heat coil type devices. They are designed to be placed between the line input and the surge arresting components (mov. gas tube, zenor diode, air gaps, etc.) These fuses will withstand transient surge currents generated by lighting in accordance with the attached table. SMP fuses guard protected circuitry against sustained overload or short circuit conditions. Such sustained overloads may be generated by accidental contact between utility cables and phone lines (power line cross). SMP Fuse are used in circuits to obtain compliance with the test requirements specified in UL 1950/60950 and Bellcore GR 1089.
Catalog Number
Ampere Rating
Voltage Rating
Typical Cold Resistance (ohm)
Volt-drop @100% In (Volt) max. 0.20
Melting IT < 10 mSec (A Sec) 14.0
Melting IT @ 10 In (A Sec) 17.0
Maximum Power Dissipation (w) 0.71
SMP 2
2A
600V
0.055
Consult manufacturer for other ratings
SURGE WITHSTAND RATINGS
Voltage 1000V 2500V 5000V Peak Surge Current 120A 500A 500A Maximum Rise/Duration Time 10 uS x 1000 uS 2 uS x 10 uS 2 uS x 10 uS Repetitions 100 Pulses ( 50 Each Polarity) 40 Pulses ( 20 Each Polarity) 4 Pulses ( 2 Each Polarity)
Double -exponential Impulse Wavefor……
