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www.vishay.com For technical questions, contact: ESDprotection@vishay.com Document Number: 85824
4Rev. 2.0, 22-Jul-10
GSOT03C to GSOT36C
Vishay Semiconductors Two-Line ESD-Protection in SOT-23
BiAs-MODE (2-line bidirectional asymmetrical protection mode)
With the GSOTxx one signal- or data-lines (L1) can be protected against voltage transients. With pin 1 connected to ground
and pin 3 connected to a signal- or data-line which has to be protected. As long as the voltage level on the data- or signal-line
is between 0 V (ground level) and the specified maximum reverse working voltage (VRWM) the protection diode between pin 1
and pin 3 offer a high isolation to the ground line. The protection device behaves like an open switch.
As soon as any positive transient voltage signal exceeds the break through voltage level of the protection diode, the diode
becomes conductive and shorts the transient current to ground. Now the protection device behaves like a closed switch. The
clamping voltage (VC) is defined by the breakthrough voltage (VBR) level plus the voltage drop at the series impedance
(resistance and inductance) of the protection device.
Any negative transient signal will be clamped accordingly. The negative transient current is flowing in the forward direction of
the protection diode. The low forward voltage (VF) clamps the negative transient close to the ground level.
Due to the different clamping levels in forward and reverse direction the GSOTxx clamping behaviour is bidirectional and
asymmetrical (BiAs).
ABSOLUTE MAXIMUM RATINGS GSOT15C
PARAMETER TEST CONDITIONS SYMBOL VALUE UNIT
Peak pulse current
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot IPPM
8A
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 8A
Peak pulse power
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot PPP
345 W
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 400 W
ESD immunity Contact discharge acc. IEC 61000-4-2; 10 pulses VESD
± 30 kV
Air discharge acc. IEC 61000-4-2; 10 pulses ± 30 kV
Operating temperature Junction temperature TJ- 40 to + 125 °C
Storage temperature TSTG - 55 to + 150 °C
ABSOLUTE MAXIMUM RATINGS GSOT24C
PARAMETER TEST CONDITIONS SYMBOL VALUE UNIT
Peak pulse current
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot IPPM
5A
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 5A
Peak pulse power
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot PPP
235 W
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 240 W
ESD immunity Contact discharge acc. IEC 61000-4-2; 10 pulses VESD
± 30 kV
Air discharge acc. IEC 61000-4-2; 10 pulses ± 30 kV
Operating temperature Junction temperature TJ- 40 to + 125 °C
Storage temperature TSTG - 55 to + 150 °C
ABSOLUTE MAXIMUM RATINGS GSOT36C
PARAMETER TEST CONDITIONS SYMBOL VALUE UNIT
Peak pulse current
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot IPPM
3.5 A
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 3.5 A
Peak pulse power
Pin 1 to 3 or pin 2 to 3
acc. IEC 61000-4-5, tp = 8/20 μs; single shot PPP
248 W
Pin 1 to 2 or pin 2 to 1; pin 3 not connected
acc. IEC 61000-4-5, tp = 8/20 μs; single shot 252 W
ESD immunity Contact discharge acc. IEC 61000-4-2; 10 pulses VESD
± 30 kV
Air discharge acc. IEC 61000-4-2; 10 pulses ± 30 kV
Operating temperature Junction temperature TJ- 40 to + 125 °C
Storage temperature TSTG - 55 to + 150 °C