polyswitch? ptc devices overcurrent protection device product: LVB125 document: scd28306 rev letter: b rev date: aprial 12 , 2012 page no.: 1 of 2 specification status: released rated operating voltage at 2 5 c: 2 40 v ac maximum interrupt voltage / current at 2 5 c: 265 v ac , 12.5 a insulating material: glass reinforced pbt (meeting ul94 v - 0 requirements) lead material: 20 awg tin - plated copper (0.81mm/0.032 nominal diameter) marking: table i. dimensions: *rounded off approximation table i i. performance ratings @ 25 c: hold current (a) trip current (a) resistance () time to trip(sec) @ 8 a post - trip resistance () opera ting temperature ( ) tripped - state power dissipation @ 2 40 v (w) min max max max min max max 1.25 2.50 0.1 52 0. 292 5 0.482 - 40 85 4 agency recognition s : ul reference documents: ps300, ul1434 precedence: this specification takes precedence over docu ments referenced herein. effectivity: reference documents shall be the issue in effect on the date of invitation for bid. c aution : operation beyond the rated voltage or current may result in rupture, electrical arcing or flame. materials information r ohs compliant elv compliant pb - free ? 2 012 tyco electronics corporation, a te connectivity ltd. company. all rights reserved. a b c d e f g min max min max min max min max min max min max min max mm: 24.8 2 5 .2 26.8 27. 2 8.9 11.4 5.1 -- 4.2 4.6 20.0 20. 3 2.3 2.5 in * : ( 0.98 ) ( 0.99 ) ( 1.06 ) ( 1.07 ) ( 0.35 ) ( 0.45 ) ( 0.20 ) ( -- ) ( 0.17 ) ( 0.18 ) ( 0.79 ) ( 0.80 ) ( 0.09 ) ( 0.10 ) manufacturers mark lot identification and part identification b125 www.datasheet.co.kr datasheet pdf - http://www..net/
polyswitch? ptc devices overcurrent protection device product: LVB125 document: scd28306 rev letter: b rev date: aprial 12 , 2012 page no.: 2 of 2 warning: application limitations for the lvb product line 1. users should inde pendently evaluate the suitability of and test each product selected for their own application. 2. this product should not be used in an application where the maximum interrupt voltage or maximum interrupt current can be exceeded in a fault condition. operat ion beyond the maximum ratings or improper use may result in device damage and possible electrical arcing and flame. 3. a pptc device is not a fuse - it is a nonlinear thermistor that limits current. under a fault condition all pptc devices go into a high re sistance state but do not open circuit, so hazardous voltage may be present at pptc locations. 4. the devices are intended for protection against occasional overcurrent or overtemperature fault conditions and should not be used when repeated fault conditions or prolonged trip events are anticipated. 5. in most applications, power must be removed and the fault condition cleared in order to reset a pptc device; however, under certain unusual conditions, a pptc device may automatically reset. pptc devices should n ot be used in an application where an automatic reset could create a safety hazard, such as garbage disposals and blenders. appropriate qualification testing should be performed. 6. it is the responsibility of the user to determine the need for back up or fai l safe protection to prevent damage that may occur in the event of abnormal function or failure of the ptc device. 7. operation in circuits with a large inductance can generate a circuit voltage (ldi/dt) above the rated voltage of a pptc device. this produc t should not be used in an application where the maximum interrupt voltage or maximum interrupt current can be exceeded by inductive spikes. 8. devices are not recommended for reflow soldering. 9. device performance can be impacted negatively if devices are han dled in a manner inconsistent with recommended electronic, thermal, or mechanical procedures for electronic components. www.datasheet.co.kr datasheet pdf - http://www..net/
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