Industry news--Karmin Electronic (HK) Limited

Pickering can switch up to 1kV for a new type of high-voltage SMD reed relay
2023-12-02

The isolation voltage of this series of relays can reach up to 3kV

Pickering Electronics, a leading manufacturer of high-performance tongue spring relays, announced the launch of the first high-voltage surface mount tongue spring relay, known as the 219 series. This series of tongue spring relays come in various packaging forms (with the same size but different pin positions). You can choose from 1 Form A (SPST), 2 Form A (DPST), or 1 Form B (SPNC) contact configurations. Can switch voltage up to 1000V; The isolation voltage of the switch can reach up to 3000V, while the isolation voltage of the switch coil can reach up to 5000V.

The 219 series surface mount tongue spring relay is an excellent choice for a range of high-voltage applications, including mixed signal semiconductor testers, medical equipment testing, EV (electric vehicle) charging station testing, and monitoring of solar cell photovoltaic efficiency.

Within the 219 series range, all contact configurations offer three coil voltages: 3V, 5V, or 12V. The switch isolation voltage in the 2 Form A package can reach up to 1.5kV, the switch isolation voltage in the 1 Form B package can reach up to 2kV, the switch isolation voltage in the 1 Form A package can reach up to 3kV, and the switch coil isolation voltage in the 1 Form A package can reach up to 5kV. 1 Form A and 1 Form B. The switching current is as high as 0.7A, the power is 10W, and the operating temperature range is -40 ° C to+105 ° C.

All models offer the option of built-in freewheeling diodes. The diode is installed inside the relay to protect the device driving the relay coil from the influence of back electromotive force. The back electromotive force is generated when the current flowing to the coil is interrupted. A decrease in current can cause an increase in voltage, which may damage other components on the PCB board, such as coil driver chips.

"Currently, only Pickering produces surface mount high-voltage relays with 2 Form A and 1 Form B packaging," said Robert King, Product Development Manager at Pickering Electronics. "The 2 Form A configuration optimizes the circuit board space, including two switches in the same footprint. On the other hand, the 1 Form B is a normally closed relay product that users previously could not obtain in the market."

As expected by customers, Pickering's 219 series reed relays have multiple standard options that can be customized according to your specific application. If standard relays or any standard optional options cannot meet your requirements, the company also provides customized relay services to meet your specific applications.

Like other relays produced by Pickering, the new 219 series high-voltage reed relays use the best instrument grade switches and feature high-performance contact coatings to meet the required current and voltage requirements for applications. Another innovation (not yet adopted by some competitors) is SoftCenter ™ Technology, which can minimize the internal stress of tongue spring switches, thereby extending their service life and improving contact resistance stability. The use of Mu Metal magnetic shielding and electrostatic shielding can effectively prevent misoperation caused by external interference.

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