Application Notes for Picker Relays

Contact Arc Phenomenon
What precisely is an electric arc?
How does it ignite and what causes it to Extinguish?
How does an arc affect the life of the relay contacts?

Relay Contact Life
Relay contacts are available in a variety of metals and alloys, sizes and styles. There is no such thing as a universal contact. The relay user should select contact materials, ratings, and styles to meet, as precisely as possible, the requirements of a particular application. Failure to do so can result in contact problems and even early contact failure.

Automotive Relays Soldering Recommendations
PCB Relays: Important Facts about Soldering

Relay Technical Notes
Section I: General Application Guidelines
1. Avoid Abuse
2. Never Remove the Case
3. Atmospheric Considerations
4. Warning - Silicon Based Resins
5. Polarity
6. Voltage
7. Over-Voltage
8. Contact Current
9. Check Your Load and Conditions
10.Warning - Ambient Temperature
11.Ultrasonic Cleaning
12.Relay Operating Temperature

RoHS

Coil Supressions vs Relay Life
The Need for Transient Suppression
When an electromechanical relay is de-energized rapidly by a mechanical switch or semiconductor, the collapsing magnetic field produces a substantial voltage transient in its effort to disperse the stored energy and oppose the sudden change of current flow. A 12VDC relay, for example, may generate a voltage of 1,000 to 1,500 volts during turn-off. With the advent of modern electronic systems, this relatively large voltage transient has created EMI, semiconductor breakdown, and switch wear problems for the design engineer. It has thus become common practice to suppress relay coils with other components which limit the peak voltage to a much smaller level.

Technical Definitions
Reading a Relay Data Sheet - the Terms and Technical Parameters Defined

RoHS Statement Statement Regarding RoHS Compliance of Picker Components Corp Relays

Download: Picker T90 Style Relays Overview of Picker's T90 Style Relays

"Making The
Connection"

Request A Quote | Picker Relay
* Name
* Email
Message
Picker Offers Unique Designs in UL Power Relays
    PC730
  • Smallest30 AMP 2 pole relay on market
  • PCB Mount or Quick Connect Terminals.
  • 1.5 HP Rating
    PC740
  • 40 AMP at 250 VAC, 2 pole or 3 pole
  • 2 HP Rating
  • AC or DC Coll Option
    PTRA
Sales Or Technical Assistance
888-997-3933