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SR70

ultRa low caPacitance SteeRing diode aRRay

deScRiPtion

The SR70 is an ultra low capacitance steering diode array. Designed for protection against Electrostatic Discharge

(ESD), Electrical Fast Transients (EFT) and secondary lightning threats, this device is ideal for use in high-speed signal

interface application such as USB, microprocessor bus and mobile electronics.

The SR70 is capable of protecting one line pair or two single lines via the steering of transient voltage to power lines

or ground. Its ultra low capacitance allows maintenance of signal integrity for high-speed data lines while protecting

the circuit ICs from the damage of severe transients. An extremely low leakage current makes the SR70 suitable for

battery powered devices and POE applications. The SR70 is available in the small SOT-143 package, which reduces

internal lead inductance for low, overshoot voltage during fast front time transient events like ESD. This device meets

the IEC 61000-4-2 and IEC 61000-4-4 requirements.

FeatuReS

• Compatible with IEC 61000-4-2 (ESD): Air - 15kV, Contact - 8kV

• Compatible with IEC 61000-4-4 (EFT): 40A - 5/50ns

• Compatible with IEC 61000-4-5 (Surge): 24A, 8/20µs - Level 2(Line-

Gnd) & Level 3 (Line-Line)

• 225 Milliwatts Continuous Power Dissipation

• Provides Two Lines of Protection

• Low Leakage Current < 1.0µA

• Ultra Low Capacitance: 3pF Typical

• RoHS Compliant

• REACH Compliant

Mechanical chaRacteRiSticS

• Molded JEDEC SOT-143 Package

• Approximate Weight: 9 milligrams

• Lead-Free Pure-Tin Plating (Annealed)

• Solder Reflow Temperature:

Pure-Tin - Sn, 100: 260-270°C

• 8mm Tape and Reel Per EIA Standard 481

• Flammability Rating UL 94V-0

aPPlicationS

• USB Interface Ports

• POE Applications

• Video

• Handheld Electronics

• Laptops

Sot-143 Package

Pin conFiguRation

3

4

1

2

V

N

I/O 1

I/O 2

V

P