VBUS051CD-HD1

www.vishay.com

Vishay Semiconductors

Not for New Designs

Rev. 1.7, 20-May-2021

2

Document Number: 81195

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

APPLICATION NOTE

The VBUS051CD-HD1 is an ESD protection device with the characteristic of a Z-diode with a high ESD immunity and a very

low capacitance which makes it usable for high frequency applications like USB2.0 or HDMI.

With the VBUS051CD-HD1 one high speed data line can be protected against transient voltage signals like ESD (electro static

discharge). Connected to the data line (pin 2) and to ground (pin 1) negative transients will be clamped close below the ground

level while positive transients will be clamped close above the 5.5 V working range. The clamping behavior of the

VBUS051CD-HD1 is bidirectional but asymmetrical (BiAs) and so it offers the best protection for applications running up to 5 V.

Fig. 1 - ESD Discharge Current Wave Form

acc. IEC 61000-4-2 (330

Ω/150 pF)

Fig. 2 - 8/20 μs Peak Pulse Current Wave Form

acc. IEC 61000-4-5

ELECTRICAL CHARACTERISTICS VBUS051CD-HD1

PARAMETER

TEST CONDITIONS/REMARKS

SYMBOL

MIN.

TYP.

MAX.

UNIT

Protection paths

Number of line which can be protected

-

-

1

lines

Reverse stand-off voltage

Max. reverse working voltage

--

5.5

V

Reverse voltage

pin 2 to pin 1

5.5

-

-

V

Reverse current

pin 2 to pin 1

-

< 0.01

0.1

μA

Reverse breakdown voltage

pin 2 to pin 1

6.5

7.6

8.5

V

Reverse clamping voltage

pin 2 to pin 1

--

14

V

Forward clamping voltage

pin 1 to pin 2

--

3.5

V

Capacitance

pin 2 to pin 1

-0.6

0.8

pF

2nd line

20557

10

100

1000

10000

0

20

40

60

80

100

120

-10 0

10 20 30 40 50 60 70 80 90 100

Axis Title

t (ns)

Rise time = 0.7 ns to 1 ns

53

27

10

100

1000

10000

0

20

40

60

80

100

010

20

30

40

Axis Title

t (µs)

2nd line

20 µs to 50 %

8 µs to 100 %

20548