PGB0040805 查看數據表（PDF） - Littelfuse, Inc

零件编号

产品描述 (功能)

比赛名单

PGB0040805

Typical Applications • Servers • Laptop/Desktop Computers • Network Hardware • Computer Peripherals • Digital Cameras • External Storage

Littelfuse, Inc 

PulseGuard® Suppressors

Polymeric ESD Suppressors

PGB Series 0805 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

Clamping

Voltage

Definitions

Time (ns)

Voltage (V)

4

Capacitance vs. Frequency

Trigger Voltage: The measured peak voltage across the ESD

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

70

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

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

IC protection.

60

** Note: 1,000 fF = 1 pF

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

50

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:

40

0.5

1.0

1.5

2.0

Frequency (GHz)

SEVERITY LEVEL

AIR DISCHARGE

DIRECT

DISCHARGE

1

2 kV

2 kV

2

4 kV

4 kV

3

8 kV

6 kV

4

15 kV

8 kV

DESCRIPTION

MEASUREMENT (MM)

Carrier Tape Specifications

Parts are delivered on 7" (178mm) reel, paper carrier tape

Tt

Dd

Ds

Ct - Cover tape thickness

0.06

Dd - Drive hole diameter

1.50

Ds - Drive hole spacing

4.00

Pd - Pocket depth

0.58

+

+

+

+

Ph - Pocket height

2.21

Ps - Pocket spacing

4.00

Tw

Pd

+

+

+

Ph

Pw - Pocket width

1.45

Tt - Carrier tape thickness

0.65

Ct

Ps

Pw

Tw - Carrier tape width

8.00

www.littelfuse.com

181

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