RANSIENT PROTECTION PRODUCTS
T
DESCRIPTION
DESCRIPTION
The “FemtoFarad” product family is
specifically designed to protect sensitive
electronic circuits from the threat of
electrostatic discharge (ESD).
“FemtoFarad” products react almost
instantly to the transient voltage and
effectively clamp it below 60 V,
meaning less voltage stress during the
clamp period and greater IC protection.
The design of “FemtoFarad” products
inherently produces a low capacitance
part. In the off-state “FemtoFarad” is
virtually invisible to the circuit. Installed
from signal line to ground, the
“FemtoFarad” device exhibits a high
impedance and low capacitance that
makes it transparent to high-speed
digital circuits. Signals are not distorted
or disrupted.
DESCRIPTIONDESCRIPTION
With “FemtoFarad” devices,
waveform definition stays true and highspeed signals do not suffer.
“FemtoFarad” products utilize a unique
polymer-based material. The nature of
the material creates a Bidirectional part,
which means that only one device is
required to provide complete ESD
protection regardless of the surge
polarity. The combination of this material
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.
“FemtoFarad” Polymer ESD Suppressor
IMPORTANT:
For the most current data, consult
MICROSEMI
’s website:
http://www.microsemi.com
Performance Characteristics Min Typ Max Units
Continuous operating voltage - - 6 VDC
Clamping voltage
Trigger voltage
ESD voltage capability
Capacitance (@ 1 MHz) - 0.25 1 pF
Leakage current (@ 6 VDC) - <10 <100 nA
Peak current
Operating temperature -40 +25 +85
ESD pulse withstand
Part Ratings and Characteristics
1, 4
1
2
4
1,3
- 35 60 V
- 150 300 V
- 8 15 kV
- 30 45 A
20 - - # pulses
Notes:
1. Per IEC 1000-4-2, 30A @ 8kV, level
4, clamping measurements made 30 ns
after initiation of pulse, all tests in
contact discharge mode.
2. Trigger measurement made using
TLP method (see page5).
3. Parts will remain within the
specifications listed in the above table
through a minimum of 20 ESD pulses.
4. TVSF0805 devices are capable of
withstanding up to a 15 kV, 45 A ESD
pulse. Device ratings are given at 8 kV
per Note 1 unless otherwise specified.
Environmental Specifications;
•
Humidity, steady state: MIL-STD-202F, Method 103B, 90-95% RH, 40°C, 96 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 (H
•
Full Load voltage: 24 VDC, 1000 hrs, 25°C
•
Solder leach resistance and terminal adhesion: Per EIA-576
•
Solderability: MIL-STD-202, Method 208 (95% coverage)
WWW.
Microsemi
.
COM
P
RODUCT PREVIEW
KEY FEATURES
KEY FEATURES
KEY FEATURES KEY FEATURES
!"
Exceeds testing
requirements outlined in IEC
1000-4-2
!"
Extremely low capacitance
!"
Very low leakage current
!"
Fast response time
!"
Bidirectional
!"
Surface mount
!"
Nickel & Tin/Lead plated
TVSF0805
APPLICATIONS/BENEFIT
APPLICATIONS/BENEFITSSSS
APPLICATIONS/BENEFITAPPLICATIONS/BENEFIT
!"
GaAs & InGaAs
Photodetector protection
!"
InGaP HBT Power Amplifier
Protection
!"
High Speed Data Line
Protection
!"
Mobile Phone ESD
°
C
protection
0, detergent solution, defluxer)
2
T
T
V
V
S
S
F
F
0
0
8
8
0
0
5
5
Copyright 2000
MSC1590.PDF 2000-09-20
8700 East Thomas Rd., PO Box 1390, Scottsdale AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Microsemi
Transient Protection Products Group
http://www.microsemi.com/tvs
Page 1
RANSIENT PROTECTION PRODUCTS
T
Definition of Terms:
Clamping Voltage –
stabilizes during the transition from high to low impedance. This is the
voltage experienced by the circuit, after stabilizing, for the duration of
the ESD transient.
Trigger Voltage –
begins to function. When the ESD threat voltage reaches this level, the
“FemtoFarad” device begins the transition from high impedance to low
impedance, shunting the ESD energy to ground.
Threat Voltage –
(i.e. the voltage across the discharge capacitor).
The voltage at which the “FemtoFarad” device
The voltage at which the “FemtoFarad” device
The voltage that the test equipment is set to operate
“FemtoFarad” Polymer ESD Suppressor
P
RODUCT PREVIEW
TVSF0805
WWW.
Microsemi
.
COM
Copyright 2000
MSC1590.PDF 2000-09-20
8700 East Thomas Rd., PO Box 1390, Scottsdale AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
Microsemi
Transient Protection Products Group
http://www.microsemi.com/tvs
Page 2
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