Circuit & System Protection


Thermal protectors for LiP battery cells

14 November 2012 Circuit & System Protection

Designers are increasingly turning to high-capacity, envelope-like LiP (lithium polymer) cells to optimise space in media tablets, ultra-thin PCs, electronic readers and other small, slim consumer electronics. At the same time, battery manufacturers have been challenged to find ultra-compact over-temperature protection devices that can meet the higher currents typically found in these applications.

In response, TE Circuit Protection developed the MHP-TA series of low-profile (L: 5,8 mm x W: 3,75 mm x H: 1,15 mm) resettable thermal cut-off (TCO) devices for lithium battery protection. The devices feature a 9 V d.c. rating, two product categories with different levels of current-carrying capacity, and multiple cut-off temperature ratings.

The MHP-TA series is an extension of TE’s MHP (Metal Hybrid PPTC) technology, which connects a bimetal protector in parallel with a PPTC (polymeric positive temperature coefficient) device.

The new series comprises nine devices with two levels of current carrying capacity: low-current MHP-TA6-9 products with an approximately 6 A hold current at 25°C, and high-current MHP-TA15-9 products providing a hold current of approximately 15 A.

The low-current MHP-TA6-9 devices are available in four different temperature ratings (72°C, 77°C, 82°C, 85°C) and the high-current MHP-TA15 devices in five ratings (72°C, 77°C, 82°C, 85°C, 90°C).



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Dual-channel high-speed protector
29 April 2020, Electrocomp , Circuit & System Protection
Bourns announced the release of the Model TBU-RS085-300-WH, for use in RS-485 communication interface protection. The part is an integrated dual-channel transient blocking unit (TBU) over-current and ...

Read more...
Reliably protect LED applications
29 April 2020, Phoenix Contact , Circuit & System Protection
The Type 2 surge protective device from the Blocktrab series from Phoenix Contact protects all lighting systems and is particularly suitable for LED applications. LED technology has become indispensable ...

Read more...
Rectifier chip diodes
25 March 2020, Electrocomp , Circuit & System Protection
Portable electronics, communications, computing and video equipment manufacturers are challenging the semiconductor industry to develop increasingly power efficient solutions with smaller electronics ...

Read more...
Steering diode/TVS array for display interfaces
25 March 2020, Altron Arrow , Circuit & System Protection
ProTek Devices has introduced a new steering diode transient voltage suppressor (TVS) array for circuit protection across popular consumer electronic display interfaces. The new PUSB403 device is ideal ...

Read more...
SMD fuse with automotive qualification
25 March 2020, Electrocomp , Circuit & System Protection
Bourns announced the introduction of two new series of AEC-Q200 compliant SMD fuses to complement its already successful line of SinglFuse SMD Fuse products.    The new Model SF-0603HIA-M and SF-1206HIA-M ...

Read more...
USB Type-C port protector
26 February 2020, Altron Arrow , Circuit & System Protection
Designers can easily migrate small electronic devices from legacy USB Micro-A or Micro-B interconnects to the latest Type-C style with the STMicroelectronics TCPP01-M12 port protector, which satisfies ...

Read more...
Spring finger stocks and contact gaskets
26 February 2020, Vepac Electronics , Circuit & System Protection
Kemtron’s beryllium copper (BeCu) spring finger stocks and contact gaskets are manufactured by punching or etching a thin BeCu strip which is pressed and formed into the required final shape and then ...

Read more...
The importance of surge protection in the lightning protection arena
29 January 2020, DEHN Africa , Circuit & System Protection
In order to understand the need for surge protection, it is important to understand how lightning causes damage. The sources of lightning damage are quite different, and we use different types of mitigation ...

Read more...
TVS array for medical electronics
29 January 2020, Altron Arrow , Circuit & System Protection
ProTek Devices has introduced a new bidirectional, asymmetrical TVS(transient voltage suppressor) array component for circuit protection in medical electronic devices, smartphones, audio/video inputs, ...

Read more...
High-power TVS components
29 January 2020, Altron Arrow , Circuit & System Protection
ProTek Devices has introduced a family of high-powered transient voltage suppressor components for circuit protection in DC, AC and remote transmission line applications. The family of TVS components ...

Read more...