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ESDA12-1K-ESDA18-1K
EOS and ESD Transil™ protection for charger and battery port
September 2010 Doc ID 17883 Rev 1 1/10
ESDA-1KEOS and ESD T ransil™ protection for charger and battery port
Features Breakdown voltage: 12 V, 18 V Unidirectional device High peak power dissipation: 450 W (8/20 µs
waveform) ESD protection level better than
IEC 61000-4-2 level 4: 30 kV contact
discharge. Low leakage current < 0.5 µA at 5 V PCB area: 1.3 mm2
Benefits High EOS and ESD protection level High integration Suitable for high density board Small package
Complies with the following standards IEC 61000-4-2 level 4 15 kV (air discharge) 8 kV (contact discharge) MIL STD 883G - Method 3015-7 Class 3B HBM (Human Body Model): ≥ 8 kV
ApplicationsWhere transient overvoltage protection in ESD
sensitive equipment is required, such as: Computers Printers Communication systems Cellular phone handsets and accessories Video equipment
Figure 1. Functional diagram
DescriptionThe ESDA-1K is a single line T ransil diode
designed specifically for the protection of
integrated circuits in portable equipment and
miniaturized electronics devices subject to ESD
and EOS transient overvoltages.
TM: Transil is a trademark of STMicroelectronics.
Characteristics ESDA-1K2/10 Doc ID 17883 Rev 1
1 Characteristics 0
Figure 2. Electrical characteristics (definitions)
Table 1. Absolute maximum ratings (Tamb = 25 °C)
Table 2. Absolute maximum ratings (tamb = 25 °C) - product specific parameters
Table 3. Electrical characteristics (values, Tamb = 25 °C) VR = 0 V, Fosc = 1 MHz, Vosc = 30 mV
ESDA-1K CharacteristicsDoc ID 17883 Rev 1 3/10
Figure 3. Peak pulse power dissipation
versus exponential pulse duration
(typical values)
Figure 4. Peak pulse power dissipation
versus initial junction temperature
(typical values)
Figure 5. Clamping voltage versus peak
pulse current (typical values)
Figure 6. Leakage current versus junction
temperature (typical values)
Figure 7. ESD response to IEC 61000-4-2
(+15 kV air discharge) ESDA12-1K
Figure 8. ESD response to IEC 61000-4-2
(-15 kV air discharge) ESDA12-1K
Ordering information scheme ESDA-1K4/10 Doc ID 17883 Rev 1
Ordering information scheme
Figure 9. Ordering information scheme
ESDA-1K Package informationDoc ID 17883 Rev 1 5/10
3 Package information Epoxy meets UL94,V0 Lead-free package
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOP ACK®
specifications, grade definitions and product status are available at: .
ECOPACK® is an ST trademark.
Note: Product marking may be rotated by multiples of 90° for assembly plant differentiation. In no
case should this product marking be used to orient the component for its placement on a
PCB. Only pin 1 mark is to be used for this purpose.
Table 4. SOD-523 dimensions
Figure 10. Footprint (dimensions in mm) Figure 11. Marking
Package information ESDA-1K6/10 Doc ID 17883 Rev 1
Figure 12. Tape and reel specification
