SP4001-04UTG Datasheet, PDF (1/1 Pages) Littelfuse – The SIM (Subscriber Identification Module) card has 3 data lines that are low-speed and low-voltage

Silicon Protection Arrays
Application Guide
SIM Socket
Considerations:
● The SIM (Subscriber Identification Module) card has 3 data lines that are low-speed and low-voltage
→ Given the low speed of the signals, the capacitance will not be a concern
● The low-voltage signal lines are best protected by a device which has a low standoff voltage or V_RWM
→ This allows the protection to turn on “earlier” in response to an over-voltage or ESD event
● Protection of the 3 data lines is shown below (i.e. CLK, DATA, and RESET)
Application Schematics:
Outside
World
SIM Socket
V_BUS
DATA
CLK
RESET
*Package is shown as transparent
NC
SP4001
Case GND
SIM Controller
IC
GND
Case GND
NC NC
Signal GND
Recommended SPA Devices:
Ordering Number
SP4001-04UTG
SP3002-04UTG
ESD Level
(Contact)
±12kV
±12kV
Lightning
(t_P=8/20μs)
4.5A
4.5A
I/O
Capacitance
0.75pF
0.85pF
# of
Channels
4
4
V_RWM
3.3V
6V
Packaging
μDFN-6 (1.6x1.6mm)
μDFN-6 (1.6x1.6mm)
©2009 Littelfuse, Inc
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