Electro-Static Discharge - SimCom SIM900B Hardware Design

I Peak current
VBAT-peak
* In above table the current consumption value is the typical one of the module tested in laboratory. In the mass production stage,
there may be differences among each individual.
4.8

Electro-Static Discharge

SIM900B is an ESD sensitive component, so more attention should be paid to the procedure of handling and
packaging. The ESD test results are shown in the following table.
Table 21 : The ESD characteristics (Temperature: 25 , Humidity
Pin
SIM900B_Hardware Design_V2.01
BS-PA-MFRMS=5
BS-PA-MFRMS=2
GSM 850
EGSM 900
Idle mode
DCS 1800
PCS 1900
GSM 850
EGSM 900
Voice call
DCS 1800
PCS 1900
GSM 850
EGSM 900
Data mode
GPRS(1Rx,1Tx)
DCS 1800
PCS 1900
GSM 850
EGSM 900
Data mode
GPRS(4Rx,1Tx)
DCS 1800
PCS 1900
GSM 850
EGSM 900
Data mode
GPRS(3Rx,2Tx)
DCS 1800
PCS 1900
During Tx burst
℃
Contact discharge
36
Smart Machine Smart Decision
1.2
1.5
22
PCL=5 250
PCL=12 110
PCL=19 80
PCL=0 180
PCL=7 94
PCL=15 76
PCL=5 235
PCL=12 102
PCL=19 74
PCL=0 170
PCL=7 90
PCL=15 70
PCL=5 273
PCL=12 145
PCL=19 120
PCL=0 205
PCL=7 130
PCL=15 110
PCL=5 440
PCL=12 185
PCL=19 125
PCL=0 320
PCL=7 155
PCL=15 120
2
: 45 %)
Air discharge
mA
mA
mA
mA
mA
mA
mA
mA
A
2012-05-07