Product Details
Uchihashi Tamura 5A 250V Thermal Cutoff Fuse L4F 127C Thermal Fuse
Product Description:
A thermal fuse, also known as a thermal cutoff or thermal link, is
a safety device used to protect electrical appliances and circuits
from overheating. It operates by interrupting the electrical
current when the temperature exceeds a predetermined threshold,
thereby preventing potential fire hazards or damage to the
equipment.
Features:
- The fuse is calibrated to respond to a specific temperature.
- Ceramic case, heating response quickly.
- Stable operation and high precision.
- Small and lightweight, making it easy to integrate into various
devices.
- Free of lead (Pb) and cadmium (Cd) and is RoHS and REACH compliant.
- Epoxy resin sealing.
- Very simple structure, the product is less affected by time
changes, and the reliability is high.
Wire length | Dimensions (mm) |
A | B | C | D | E |
Standard (LF) | 11.5±0.3 | 3.3±0.1 | 3.6 or below | 1.0±0.05 | 68±3.0 |
Short (LF-C) | 11.5±0.3 | 3.3±0.1 | 3.6 or below | 1.0±0.05 | 38±3.0 |
Specification:
Model | Temperature rating Tf(℃) | Operating temperature (℃) | Maintain temperature Th(℃) | Maximum operating temperature (℃) | Maximum limit temperature Tm(℃) | Current rating (A) | Rated voltage (V) |
|
L4F | 127 | 123±2 | 105 | 90 | 200 | 5.0 | AC250 |
Certifications:
Model | Get certified |
PSE | UL | C-UL | VDE | Self-certification | KC |
L4F | JET5823-32001-1004A-1 | E73591 | E73591 | 40016342 | 2020980205000115 | SU05028-10004F |
Working Principle
When ambient temperature rises to its operating temperature, the
fusible alloy will melt and shrink into bulb on both sides of pin,
with the help of surface tension and special resin, cut off the
circuit permanently.
Uchihashi Tamura 5A 250V Thermal Cutoff Fuse L4F 127C Thermal Fuse
Various types of Thermal Fuse Links are available
Contact me:
Mr. Tyler Yuan
Mobile:+86-13712305350
Whatsapp:+86-13712305350
Wechat:+86-13712305350
Email: admin@reomax-fuse.com
Company Profile
- Founded in 1999, we have been focused on manufacturing
over-current, over-temperature and other circuit protection
components.
- Our main products include fuses, fuse holders, thermal switches,
circuit breakers and temperature sensors, which are widely used in
various kinds of electronic devices, such as consumer electronics,
mobile terminals, household appliances, lighting appliances, power
supplies, adapters, automobile and marine applications. We have
acquired ISO9001/UL/cUL/VDE/CCC/CQC safety certificates.
- After serving our valuable clients in China market over 20 years,
we have become one of the leading suppliers of circuit protection
components.



1999 REOMAX Electronics(HK) was founded.
2003 REOMAX factory was founded
2007 IS0 9001 approved
2009 Name changed to Dongguan Reomax
2011 CQC、CCC、UL、cUL and VDE were certified.
2011 Member of CEEIA
2012 VDE certified
2012 Fuse patents were acquired
2013 PSE and KC approved
2014 REOMAX trademark applied
2014 1206/0603/2410/6125 fuses were developed
2015 Fully automatic machines were put into production。
2016 Testing machines were improved
2017 High voltage and high current testing machines were put into
use. XR inscpention euqippemnt was brought in.
2018 6125 1808 2410 were certified by CQC and KC
2019 6125 was certified by VDE
2019 1032 and 1245 were certified by UL
2020 Square fuses of high current and high voltage were certified
by TUV.