LITTELFUSE PGB008CA10PR Datasheet

1

PULSEGUARD®SUPPRESSOR

SURFACE MOUNT ESD SUPPRESSORS

8-Line CA10

PRODUCT OVERVIEW

PulseGuard ESD Suppressors help protect sensitive elec­tronic equipment against electrostatic discharge (ESD).
They supplement the on-chip protection of integrated cir­cuitry and are best suited for low-voltage, high-speed
applications where low capacitance is important.
Applications such as computer I/O ports (eg. video dis­plays), network hardware, cell phone data ports, point-of­sale terminals, and industrial controls will benefit
from this new technology. PulseGuard suppressors use
polymer composite materials to suppress fast-rising ESD
transients (as specified in IEC 61000-4-2 and MIL-STD-

883E).

FEATURES

• Ultra-low capacitance

• Low leakage current

• Fast response time

• Bi-directional

• Withstands multiple ESD strikes

• Packaged in chip array (capacitor/resistor) format

• Compatible with pick-and-place processes

• Available on 2,000 piece reels (EIA-RS481)

TYPICAL APPLICATIONS

• Computer I/O ports (e.g. video displays)

• Computer peripherals

• Network hardware/ports (e.g. Gigabit Ethernet)

• Point-of-Sale terminals

• Cell phone data ports

• Audio/video components

• Test Equipment

• Medical Equipment

ELECTRICAL CHARACTERISTICS

Notes:

1. 8 kV direct discharge method, per IEC 61000-4-2.

2. Measured at 1 MHz.

3. Measured at 6 VDC. Testing at fast ESD pulse rates (1-20Hz) may
cause a change in leakage current performance (6µA, max).

PHYSICAL SPECIFICATIONS

Materials:

Body: Glass Epoxy
Terminations: Tin-Lead

Soldering Parameters:

Wave solder -- 260

o

C, 10 seconds maximum

Reflow solder -- 260oC, 30 seconds maximum

Operating Temperature Range:

-65

o

C to +125oC

ORDERING INFORMATION
Catalog Number Pieces per Reel

PGB008CA10PR 2,000

DESIGN CONSIDERATION

Because of the fast rise-time of the ESD transient, place­ment of PulseGuard suppressors is a key design consider­ation. To achieve optimal ESD suppression, the devices
should be placed on the circuit board as close to the
source of the ESD transient as possible. Install
PulseGuard suppressors directly behind the connector so
that they are the first board-level circuit component
encountered by the ESD transient. They are connected
from signal/data line to ground.

Trigger Voltage

1

Clamping Voltage

1

Rated Voltage
Capacitance

2

Response Time

1

Leakage Current

3

ESD Pulse Withstand

1

1,000V, typical
150V, typical

24VDC, max

0.055pF
<1ns
<1nA
1,000 pulses, minimum

Obsoleted Part. Please consider PGB0010603,
PGB002ST23 or PGB0040805 for new designs.

2

PULSEGUARD®SUPPRESSOR

SURFACE MOUNT ESD SUPPRESSORS

8-Line CA10

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

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

5.38

4.00

2.44

0.30

12.00

Generalized PulseGuard Response to ESD

(Positive and Negative Polarity ESD Pulses)

Generalized I-V Curve

(Positive and Negative Polarity ESD Pulses)

Capacitance vs. Frequency

Trigger Voltage

Voltage (V)

Clamping Voltage

Time (ns)

Current (A)

Clamping
Voltage

Voltage (V)

Trigger
Voltage

70

60

50

Capacitance (fF)

40

** Note: 1,000 fF = 1 pF

T

t

P

d

C

t

D

D

d

++

s

++++

+

P

P

s

w

1.0

Frequency (GHz)

T

w

P

h

2.01.50.5