ESDA6V1SC5 STMicroelectronics, ESDA6V1SC5 Datasheet - Page 4

• Manufacturer Part Number: ESDA6V1SC5
• Description: TRANSIL ARRAY QUAD ESD SOT23-5
• Manufacturer: STMicroelectronics
• Series: TRANSIL™r

Specifications of ESDA6V1SC5

• Voltage - Reverse Standoff (typ): 5.25V
• Voltage - Breakdown: 6.1V
• Power (watts): 400W
• Polarization: 4 Channel Array - Unidirectional
• Mounting Type: Surface Mount
• Package / Case: SOT-23-5, SC-74A, SOT-25
• Polarity: Unidirectional
• Operating Voltage: 5.25 V
• Breakdown Voltage: 5.6 V
• Termination Style: SMD/SMT
• Peak Pulse Power Dissipation: 400 W
• Capacitance: 190 pF
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Dimensions: 1.75 mm W x 3.05 mm L x 1.45 mm H
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-7748-2; ESDA6V1SC5

Application information
2
2.1
2.2
4/11
Figure 7.
500
100
10
1
25
I [T ] / I [T =25°C]
R
j
R
Application information
Calculation of the clamping voltage use of the dynamic
resistance
The ESDA family has been designed to clamp fast spikes like ESD. Generally the PCB
designers need to calculate easily the clamping voltage V
dynamic resistance in addition to the classical parameters. The voltage across the
protection cell can be calculated with the following formula:
Where I
As the value of the dynamic resistance remains stable for a surge duration lower than 20 µs,
the 2.5 µs rectangular surge is well adapted. In addition both rise and fall times are
optimized to avoid any parasitic phenomenon during the measurement of R
Dynamic resistance measurement
The short duration of the ESD has led us to prefer a more adapted test wave, as below
defined, to the classical 8/20µs and 10/1000 µs surges.
Figure 9.
Relative variation of leakage
current versus junction
temperature (typical values)
j
50
PP
is the peak current through the ESDA cell.
T (°C)
2.5 µs duration measurement wave
j
75
ESDA14V2SC5/SC6
ESDA6V1SC5/SC6
&
ESDA5V3SC5/SC6
100
ESDA17SC6
ESDA19SC6
I
Ipp
&
ESDA25SC6
125
V
CL
Figure 8.
tp = 2.5µs
= V
2µs
5.00
1.00
0.10
0.01
BR
0.5
I
FM
ESDA14V2SC5/SC6
ESDA6V1SC5/SC6
+ R
(A)
ESDA5V3SC5/SC6
&
d
1.0
I
Peak forward voltage drop versus
peak forward current
(typical values)
PP
1.5
CL
. This is why we give the
ESDA19SC6
2.0
V
FM
t
(V)
2.5
ESDA25SC6
3.0
d
.
ESDAxxSCx
T = 25°C
j
3.5
ESDA17SC6
4.0