41206ESDA,
Four Element
Array Chip, Polymer ESD
Suppressor With SurgX
®
Technology
Features:
• The best ESD protection for high frequency, low voltage applications.
• Protects up to 4 separate lines with one device
• Exceeds testing requirements outlined in IEC 61000-4-2
• Extremely low capacitance
• Very low leakage current
• Fast response time
• Bi-directional
• Surface mount
• Solder Termination
• RoHS Compliant
Description:
The ESDA product family with SurgX
®
Technology is
specifically designed to protect sensitive electronic circuits
from the threat of electrostatic discharge (ESD). 4-line array
can protect up to 4 isolated lines simultaneously with perfor-
mance similar to individual chip devices. ESDA devices react
almost instantaneously to the transient voltage and effectively
clamp it in an average of 35V for the duration of the ESD tran-
sient, meaning less voltage stress during the clamp period and
greater IC protection. The design of ESDA series inherently
produces an ultra low capacitance part. In the off state the
product is virtually invisible to the circuit. Installed from signal
line to ground, it is especially transparent to the high-speed
digital circuits due to the high off-state impedance and low
capacitance. Signals are not distorted or disrupted as shown
by extensive testing. With ESDA series, waveform definition
stays true and high-speed signals do not suffer. ESDA series
utilize a unique polymer-based material. The nature of the
material creates a bi-directional part, which means that only
one device is required to provide complete ESD protection
regardless of the surge polarity. The combination of this mate-
rial with proven thick film on ceramic technology produces a
reliable, surface mount product that will help protect mobile
communications, computers, data processing, test equipment,
and many other electronic applications from ESD.
Part Ratings and Characteristics:
Performance Characteristics
Continuous operating voltage
Clamping voltage
3
Trigger voltage
4
Units
VDC
V
V
kV
pF
nA
A
°C
# pulses
Min
-
-
-
-
-
-40
20
Typ
12
1
35
150
8
0.15
30
+25
>500
2
Max
-
60
300
15
1
100
45
+105
-
ESD Threat voltage capability
5
Capacitance (@ 1 KHz ~ 1.8GHz)
Leakage current (@ 12 VDC)
Peak current
3
Operating temperature
ESD pulse withstand
3
Notes:
1. The product is 100% tested for 30V operating voltage at 25°C.
Continuous operation with higher than 12VDC under extreme
temperature and humidity may cause increasing leakage cur-
rent and/or shifting device resistance. However, even under
severe environmental test, characteristics of the device did not
change up to 12VDC operation.
2. Some shifting in characteristics may occur when tested over
several hundred ESD pulses at very rapid rate of 1 pulse per
second or faster.
3. Per IEC 61000-4-2, 30A @ 8kV, level 4, clamp measurement
made 30 ns after initiation of pulse, all tests in contact dis-
charge mode.
4. Trigger measurement made using Transmission Line Pulse
(TLP) method.
5. PolySurg™ devices are capable of withstanding up to a 15 kV,
45A ESD pulse. Device ratings are given at 8kV per Note 1,
unless otherwise specified.
Environmental Specifications:
• Moisture Resistance: MIL-STD-883, Method 1004.7, 85°C, 85%R.H., 240 hrs.
• Thermal shock: MIL-STD-202, Method 107G, -65°C to 125°C, 30 min. cycle, 5 cycles
• Vibration: MIL-STD-202F, Method 201A,(10 to 55 to 10 Hz, 1 min. cycle, 2 hrs each in X-Y-Z)
• Chemical resistance: ASTM D-543, 24 hrs @ 50°C, 3 solutions (H2O, detergent solution, defluxer)
• Full load voltage: Up to 24 VDC, 1000 hrs, 25°C
• Solder leach resistance and terminal adhesion: Per EIA-576
• Solderability: MIL-STD-202, Method 208 (95% coverage)
41206ESDA,
Four Element
Array Chip, Polymer ESD
Suppressor With SurgX
®
Technology
Device Marking
ESDA devices are marked on the tape and reel packages, not individually. Since the product is bi-directional and symmetrical, no
orientation marking is required.
Device Application
ESDA series are applicable to most signal line circuits. It is applied in a shunt-connected manner. They are not suitable for use on
lines where lighting or load-switching transients are present. ESDA series is ideal for use in computers and computer-related equip-
ment, such as modems, keyboards, and printers. ESDA series is also well suited for portable electronic equipment such as mobile
telephones, test equipment, and card scanners.
Processing Recommendations
ESDA series currently have a convex profile on the top surface of the part. This profile is a result of the construction of the device.
They can be processed using standard pick – and – place equipment. The placement and processing techniques for ESDA series
are similar to those used for chip resistors and chip capacitors
The Location in the circuit for the ESDA series has to be carefully determined. For the better performance of the device, the device
should be positioned as close to the signal input as possible and ahead of any other component.
Typical Applications
Data Bus
Supply
Voltage
In from
Peripheral
Device
To
Logic
Circuitry
Normal
Current
Normal
Current
41206ESDA
PolySurg™
Device (2)
Out to
Peripheral
Device
From
Logic
Circuitry
IC
Chip
Signal
Line in
Current Flow Under
Surge
Conditions
USB Controller
Receiver
41206ESDA
PolySurg™
Device (2)
Driver
V+
Data (+) Data (-)
41206ESDA
PolySurg™
Device
USB Controller
V+
Data (+) Data (-)
USB
Port
USB
Port
RS-232 Port
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