Circuit & System Protection


PTC thermistors limit inrush current

15 April 2009 Circuit & System Protection

Epcos has extended its series of PTC inrush current limiters for power supplies with the newly packaged B5910XJ family.

The new PTC elements have comparable electrical properties to their predecessor types, but their heat capacity has been increased from 2 J/K to 2,3 J/K. This means that fewer parallel-connected PTC resistors are needed to charge large link-circuit capacitors. The package design has also been improved. The PTCs are designed for voltages of 260 V, 440 V and 560 V with rated resistances of 22 Ω, 56 Ω and 100 Ω.

Six new types of leaded PTC inrush current limiters with heat capacities of between 1,0 J/K and 1,4 J/K have been developed for small loads and few switching cycles.



Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Clearing the Static: Staying grounded: Ensuring effective ESD control
Actum Electronics Circuit & System Protection
To maintain reliable electrostatic discharge control, regular testing and accurate measurement are essential, with grounding products and ESD testing equipment being vital.

Read more...
Track with precision
Electrocomp Telecoms, Datacoms, Wireless, IoT
KYOCERA AVX provides innovative antennas for cellular, LTE-M, NB-IoT, LoRa, GNSS, BLE, UWB, Wi-Fi, and future Satellite IoT.

Read more...
RGBIR sensor with I2C interface
Electrocomp Opto-Electronics
Available in a miniature opaque 2,67 x 2,45 mm package, Vishay’s VEML6046X00 includes high-sensitivity photodiodes, a low noise amplifier, and a 16-bit analogue to digital converter.

Read more...
Clearing the Static: ESD component safety in storage and transportation
Actum Electronics Circuit & System Protection
Conductive containers create a Faraday cage effect, safely channelling electrostatic charges away from the components inside.

Read more...
Thick film power resistors
Electrocomp Passive Components
Vishay has released a new product to the market, its thick film power resistor, which is offered in a clip-mount TO-247 package.

Read more...
Clearing the Static: Conductive foot, heel and shoe grounders
Actum Electronics Circuit & System Protection
Conductive foot, heel and shoe grounders are used in electrostatic discharge protected areas to provide a path to ground for static electricity.

Read more...
LED driver for industrial power supply indication
Altron Arrow Editor's Choice Circuit & System Protection
A simple and small solution for driving an LED to provide visual feedback in the presence/absence of a system’s power using a chip not originally designed for this purpose.

Read more...
HiRel components from Kyocera AVX
Electrocomp Passive Components
Kyocera AVX Corporation is a leading supplier of advanced components and interconnect solutions, offering a broad selection of passive components and connectors.

Read more...
Clearing the Static: Cleaning in an ESD-protected area
Actum Electronics Circuit & System Protection
Cleaning in a protected electrostatic discharge area is a critical task to maintain the integrity of sensitive electronic components and prevent damage caused by static electricity.

Read more...
Clearing the Static: Key principles of ESD control in electronics manufacturing
Actum Electronics Circuit & System Protection
Effectively managing electrostatic discharge is essential in electronics manufacturing to ensure not only product reliability, but also worker safety.

Read more...