Silicon surge protection diodes

28 April 2010 Circuit & System Protection

STMicroelectronics has announced what it believes to be the first silicon surge protectors meeting international surge-protection standard IEC 61000-4-5, with a family of devices delivering high reliability and effective protection throughout the entire operating temperature range.

The STIEC45 Transil family provides mandatory protection for power supplies against surges, electrostatic discharge and electrical fast transients. Metal-oxide varistors (MOVs) are usually connected to prevent surge energy reaching the power supply, but silicon surge protectors tend to be more reliable. ST’s Transils maintain more than 75% of their protection capability up to 150°C, and are soldered to standard-sized metal pads on printed circuit board. This approach delivers a space-efficient solution for equipment operating in high-temperature environments, such as factories or vehicles.

The devices also meet IEC 61000-4-2 for ESD and IEC 61000-4-4 for electrical fast transient (EFT), as well as passing MIL-STD-883 (Method 3015) ESD tests. They feature 500 A (8/20 μs) peak pulse-current capability and 410 A (8/20 μs) current capability at 150°C. Leakage current is a low 0,2 μA at 25°C and 1 μA at 85°C. Stand-off voltage options include 24, 26, 28, 30 and 33 V.

For more information contact Robin Scholes, Avnet Kopp, +27 (0)11 809 6100, [email protected], www.avnet.co.za

Further reading:

Clearing the Static: Staying grounded
Actum 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...

---

Smarter protection without disruption
NewElec Pretoria Circuit & System Protection
Designed for operations still running without integrated automation, NewElec’s retrofit-friendly systems let you upgrade performance and safety without overhauling your entire network.

Read more...

---

Circuit breaker for reliable, compliant protection
RS South Africa Circuit & System Protection
Legrand’s low-voltage power distribution portfolio encompasses the DX3 range of miniature circuit breakers, designed to deliver dependable protection in residential, commercial and industrial installations.

Read more...

---

Reducing noise on power supply lines
Future Electronics Circuit & System Protection
Murata has introduced the EMIFIL ESD Series Noise Filters, a breakthrough solution engineered for superior noise suppression and enhanced electrostatic discharge (ESD) protection.

Read more...

---

Clearing the Static: Fundamental principles of static control
Actum Circuit & System Protection
Controlling electrostatic discharge in electronics manufacturing is essential with effective ESD programs built on six key principles.

Read more...

---

Electrical fire safety in lithium-ion battery rooms
Circuit & System Protection
Pratliperl is a non-combustible, ultra-lightweight aggregate that can be mixed with cement and applied as a plaster or screed to walls, floors, and ceilings.

Read more...

---

Clearing the Static: ESD training in the workplace
Actum Circuit & System Protection
To protect sensitive electronic components, A structured, consistent, and sustainable ESD training program is essential.

Read more...

---

Protect your pumps – protect your profit
NewElec Pretoria Circuit & System Protection
In South Africa’s demanding agricultural landscape, irrigation is not just an essential service – it is the heartbeat of farm productivity.

Read more...

---

Clearing the Static: ESD and installation: A durable antistatic solution
Actum Circuit & System Protection
ESD flooring provides a reliable, long-term solution for managing static electricity by safely dissipating static charges through the floor to a designated ground point.

Read more...

---

Why wait to automate
NewElec Pretoria Circuit & System Protection
NewElec’s initiative helps you gain operational visibility via HMI or PLC by retrofitting intelligent motor protection relays without replacing MCCs or rewiring the plant.

Read more...

---