• MZ2B
详细内容

MZ2B series-Telecom CPTC Resettable Fuses

Features
■ Radial leaded devices
■ Aids compliance with:
- ITU-T K.20, K.21, K.45
■ Narrow resistance tolerance
■ RoHS compliant*
Applications Used as a secondary overcurrent protection device in:
■ Customer Premise Equipment (CPE)
■ Central Office (CO)
■ Access equipment
MZ2B series-Telecom CPTC Resettable Fuses

Electrical Characteristics

Model
Max.
Voltage
Withstand
Rated
Resistance
(RN)
Packing
Resistance
Matching
Hold
Current
Trip
Current
Imax@
230VAC
Time to Trip
@Imax/
230vac
Vrms
Ohms
Ohms
Amps@40℃
Amps@25℃
Amps
Seconds
MZ2B-7R
250
6~12
1.0
0.08
0.16
<3
<0.3
MZ2B-20R
250
18~24
1.0
0.09
0.18
<3
<0.2
MZ2B-40R
600
36~44
1.0
0.05
0.12
<3
<0.1
MZ2B-50R
600
40~60
1.0
0.05
0.12
<3
<0.1

Test Procedures And Requirements For Model CMF-RLC Series

Test Test Conditions Requirements*
Lightning Surge ..................................10/1000 μs / 1k V / 25 A / 30 Cycles, every 3 Min. ..................................(Ri-Rf) / Ri < ±10 %
Power Induction..................................600 V, 1 A, 1 Sec., 10 Cycles, every 1 Min. ..............................................(Ri-Rf) / Ri < ±10 %
Power Contact ....................................230 V, 23 A, 15 Min. ..................................................................................(Ri-Rf) / Ri < ±10 %
Overvoltage Withstand ......................380 V, 3 A, 4 Hours, 1 Time ......................................................................(Ri-Rf) / Ri < ±10 %
Failure Mode ......................................600 V, RL=0, 60 Min, 1 Time ....................................................................(MZ2B-50R/MZ2B-40R)
Ri = R initial
Rf = R final
** Circuit disconnected or high reinforce is acceptable.

Product Dimensions

Unit: mm
D < 9.5
T < 4.5
L 5.0±0.2

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