PGB002ST23WR Ver la hoja de datos (PDF) - Littelfuse, Inc

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PGB002ST23WR

PGB Series SOT23 Surface Mount ESD Suppressor

Littelfuse, Inc 

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PGB Series SOT23 Surface Mount ESD Suppressor

Generalized PulseGuard Suppressor Response to ESD

(Positive and Negative Polarity ESD Pulses)

Trigger Voltage

Generalized I-V Curve

(Positive and Negative Polarity ESD Pulses)

Trigger

Voltage

Clamping Voltage

Time (ns)

Definitions

Trigger Voltage: The measured peak voltage across the ESD

suppressor before it transitions from high to low resistance. It is

manifested as a “spike” before the clamping voltage is achieved.

This voltage is typically well below the damage threshold of on-chip

IC protection.

Clamping Voltage: The voltage level to which the ESD impulse voltage

is reduced. This is the voltage that the suppressor holds at, until the ESD

transient energy is dissipated.

ESD Impulse Voltage: Also known as the ESD Threat Voltage. This is

the voltage that is “zapped” into the circuit. Voltages generated by people

can exceed 15 kV. The IEC 61000-4-2 defines four levels of impulse

voltage for testing purposes:

SEVERITY LEVEL

1

2

3

4

AIR DISCHARGE

2 kV

4 kV

8 kV

15 kV

DIRECT

DISCHARGE

2 kV

4 kV

6 kV

8 kV

Carrier Tape Specifications

Parts are delivered on 7” (178mm) reel, plastic carrier tape

Tt

Dd

Ds

+

+

+

+

Pd

Ct

+

Ps

Pw

Tw

Ph

Clamping

Voltage

Voltage (V)

Capacitance vs. Frequency

70

** Note: 1,000 fF = 1 pF

60

50

40

0.5

1.0

1.5

2.0

Frequency (GHz)

DESCRIPTION

Ct - Cover tape thickness

Dd - Drive hole diameter

Ds - Drive hole spacing

Pd - Pocket depth

Ph - Pocket height

Ps - Pocket spacing

Pw - Pocket width

Tt - Carrier tape thickness

Tw - Carrier tape width

MEASUREMENT (MM)

0.06

1.50

4.00

1.02

3.23

4.00

2.46

0.30

8.00

178

www.littelfuse.com

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