LVB125 Datasheet PDF - Tyco


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LVB125
Tyco

Part Number LVB125
Description PTC Devices
Page 2 Pages

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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 25 °C:
240 VAC
Maximum Interrupt Voltage / Current at 25 °C:
265 VAC, 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:
Manufacturer’s Mark
B125 and Part Identification
Lot Identification
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TABLE I. DIMENSIONS:
AB
MIN MAX MIN MAX
mm: 24.8 25.2 26.8 27.2
In*: (0.98) (0.99) (1.06) (1.07)
C
MIN MAX
8.9 11.4
(0.35) (0.45)
D
MIN MAX
5.1 --
(0.20) (--)
E
MIN MAX
4.2 4.6
(0.17) (0.18)
F
MIN MAX
20.0 20.3
(0.79) (0.80)
G
MIN MAX
2.3 2.5
(0.09) (0.10)
*Rounded off approximation
TABLE II. PERFORMANCE RATINGS @ 25 °C:
HOLD
TRIP
CURRENT CURRENT
(A) (A)
1.25 2.50
RESISTANCE
(Ω)
MIN MAX
0.152 0.292
TIME TO TRIP(SEC)
@8A
MAX
5
POST-TRIP
RESISTANCE
(Ω)
MAX
0.482
OPERATING
TRIPPED-STATE
TEMPERATURE POWER DISSIPATION
() @ 240 V (W)
MIN MAX
MAX
-40 85
4
Agency Recognitions:
Reference Documents:
Precedence:
Effectivity:
Caution:
Materials Information
ROHS Compliant
UL
PS300, UL1434
This specification takes precedence over documents referenced herein.
Reference documents shall be the issue in effect on the date of invitation for bid.
Operation beyond the rated voltage or current may result in rupture, electrical arcing or flame.
ELV Compliant
Pb-Free
© 2012 Tyco Electronics Corporation, a TE Connectivity Ltd. Company. All rights reserved.
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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 independently 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. Operation 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 resistance 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 not 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.
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6. It is the responsibility of the user to determine the need for back up or fail 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 product 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 handled in a manner
inconsistent with recommended electronic, thermal, or mechanical procedures for electronic
components.
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