0805ESDA, Single Line
Polymer ESD Suppressor
With SurgX®Technology
The ESDA product family based on SurgX®technology is
specifically designed to protect sensitive electronic circuits
from the threat of electrostatic discharge (ESD).The products
react almost instantly to the transient voltage and effectively
clamp it in an av erage of 35V f or the duration of the ESD tr an-
sient, meaning less voltage stress during the clamp period
and greater IC protection. The design of ESDA ser ies inher-
ently 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 combi-
nation of this material with proven thick film on ceramic tech-
nology produces a reliable, surface mount product that will
help protect mobile communications, computers, data pro-
cessing, test equipment, and many other electronic applica-
tions from ESD.
Description:
Part Ratings and Characteristics:
Performance Characteristics Units Min Typ Max
Continuous operating voltage VDC - 121-
Clamping voltage3V-3560
Trigger voltage4V150 300
ESD Threat voltage capability5kV - 8 15
Capacitance (@ 1 KHz ~ 1.8GHz) pF - 0.25 1
Leakage current (@ 12 VDC) nA 0.01 <0.1
Peak current3A-3045
Operating temperature °C -40 +25 +85
ESD pulse withstand3# pulses 20 >5002-
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. Tr igger measurement made using Transmission Line Pulse
(TLP) method
5. SurgX 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:
• Humidity, steady state: MIL-STD-202F, Method 103B, 90-95% RH, 40°C, 96 hrs.
• Ther mal 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)
Features:
• The best ESD protection for high frequency, low voltage applications.
• 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
0603ESDA RECOMMENDED FOR NEW DESIGNS
0805ESDA, Single Line
Polymer ESD Suppressor
With SurgX®Technology
W
L
H
T
R
1.30
(.051)
1.20
(.047)
0.70
(.028)
mm (inches)
Recommended Solder
Pad Outline
(per IPC-SM-782)
4.0±0.1
(.157±.004)
4.0±0.1
(.157±.004)
2.0±0.05
(.079±.002)
8.0±0.2
(.315±.008)
1.5+0.1/-0
(.056+.004/-0)
1.75±0.1
(.059±.004)
13.0±0.5
(.512±.020) 10.0±1.5
(.394±.059)
178.0±2.0
(7.008±.080)
20.5
(.807)
2.0
(.080)
B
A
3.5±0.05
(.138±.002)
60.0±1.0
(2.362±.040)
1.0±0.2
(.040±.008)
Dimension
A
B
0805
2.4+0.2/-0.1
(.094+.008/-.004)
1.65+0.2/-0.1
(.065+.008/-.004)
Product Dimension
Tape-and-Reel Specification
EIA Size L W H T R
0805 2.0 ± 0.20 1.20 ± 0.20 0.70 ± 0.10 0.30 ± 0.20 0.70 ± 0.10
mm(inch) (.079 ± .008) (.047 ± .008) (.028 ± .004) (.012 ± .008) (.028 ± .005)
Part Numbering
Note: Spacing in part number is shown for clarity only. Device par t number contains no spaces (e.g.0805ESDA-TR1)
Device
Configuration Packaging Options
Device Characteristics
A = Standard
0805
SurgX®
Device
Designator
ESD -TR1
A
-TR1 = (standard) 5,000 pcs, tape-and-reel
-SP1 = (samples) 10 pcs on tape, in bag
0603ESDA RECOMMENDED FOR NEW DESIGNS
0805ESDA, Single Line
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 symmetr ical, no
orientation mar king is required.
Device Application
ESDA series are applicable to most signal line circuits. It is applied in a shunt-connected manner. They are not applicable on lines
where lighting or load-s witching tr ansients are present. ESDA series is ideal f or use in computers and computer-related equipment,
such as modems, keyboards, and printers. ESDA ser ies is also well suited for por table electronic equipment such as mobile tele-
phones, test equipment, and card scanners.
Processing Recommendations
ESDA ser ies 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 ser ies has to be carefully determined. For the better performance of the device, it is rec-
ommended to place the device close to the signal input, prior to any other component.
Typical Applications
0805ESDA
SurgX®
Device
RF Controller USB
Port
0805ESDA
SurgX®
Device (2)
V+ Data (+) Data (-)
USB Controller
RF Input
Data Bus
In from
Peripheral
Device
Out to
Peripheral
Device
To
Logic
Circuitry
From
Logic
Circuitry
0805ESDA
SurgX
Device (8) IC
Chip
Normal
Current Normal
Current
Supply Voltage
Signal Line in
Current Flow Under
Surge Conditions
0603ESDA RECOMMENDED FOR NEW DESIGNS
