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參數(shù)資料
| 型號： | TVSF0603 |
| 廠商： | Microsemi Corporation |
| 英文描述： | FemtoFarad Polymer ESD Suppressor |
| 中文描述： | FemtoFarad聚合物靜電放電抑制器 |
| 文件頁數(shù)： | 3/7頁 |
| 文件大?。?/td> | 827K |
| 代理商： | TVSF0603 |
Microsemi
Transient Protection Products Group
8700 East Thomas Rd., PO Box 1390, Scottsdale AZ 85252 USA, (480) 941-6300, Fax: (480) 947-1503
http://www.microsemi.com/tvs
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TVSF0603.PDF
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TVSF0603
“FemtoFarad” Polymer ESD Suppressor
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R A N S I E N T
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R O T E C T I O N
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R O D U C T S
Part Numbering
Part Numbering
TVSF devices are not individually marked, but labeled on the tape-and-reel unit. Components are symmetrically bi-directional, hence
no polarity marking is required.
Pick-and- Place Assembly
TVSF devices have a slightly rounded top that is inherent in their fabrication. This slight radius does not hinder standard pick-and-
place assembly methods.
Test Methods
Multiple test methods are often required for surge characterization and withstand verification. Results may vary according to test
method since secondary effects of the Electrical and Magnetic (E and H) fields on instrumentation and non-shielded circuits may
produce undesired results. This is particularly observed below 3 kV where rise times in the 100 ps range have been reported producing
electromagnetic conditions equivalent to 30 kV/ns.
ESD Open Air / Contact Discharge
This fast rise pulse, characterized in IEC 61000-4-2, can produce peak currents up to 45A with voltage levels of 15 kV. Contact
discharge is the recommended method of test because of its repeatability; however, real world ESD events are open-air human body
discharges. Air discharges introduce pre-corona discharge with E and H fields that allow energy to leak through narrow vents and
radiate from isolated circuit and enclosure segments. A TVSF device may be very capable of providing protection from ESD, but its
function can be nullified by poor board layout and inadequate shielding. ESD surges on a conductor have been observed to electro-
magnetically bypass suppressors causing circuit upset or failure. Shielding may be required for supplementing suppressor protection
devices.
Transmission Line Pulse (TLP)
The Transmission Line Pulse tester implements a controlled impedance cable to deliver a square-wave current pulse. The advantage of
this technique is that the constant current of the square wave allows the behavior of the protection structure to be more accurately studied.
The actual implementation of this technique produces a waveform that has a slightly slower rise time than the ESD pulse but can be
correlated to deliver approximately the same surge current and energy. This controlled impedance pulse provides a more accurate
depiction of the trigger voltage of the device because of the reduced voltage overshoot caused by a fast-rising transient and the reactive
components of the test fixture.
FemtoFarad
Device
Designator
Device
Configuration
Tape-and-Reel 5,000 pcs
TVSF
0603
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TR1
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N
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