Table 7-1: Relative Susceptibility To Static-Discharge Damage - Tektronix PSC1125 Instruction Manual

PSC 1125 Digital Television Parallel-to-Serial Converter Instruction Manual
7. Do not slide the modules over any surface.
8. Avoid handling modules in areas that have a floor or work-surface covering
capable of generating a static charge.
9. Do not use high-velocity compressed air when cleaning dust from modules.
Table 7–1 lists the relative susceptibility of various classes of semiconductors.
Static voltages of 1 kV to 30 kV are common in unprotected environments.
Table 7-1: Relative susceptibility to static discharge damage
Semiconductor classes
MOS or CMOS microcircuits or discrete circuits, or linear
microcircuits with MOS inputs (most sensitive)
ECL
Schottky signal diodes
Schottky TTL
High frequency bipolar transistors
JFET
Linear microcircuits
Low power Schottky TTL
TTL (least sensitive)
1
Voltage equivalent for levels (voltage discharged from a 100 pF capacitor through
resistance of 100 ohms):
1 = 100 V to 500 V
2 = 200 V to 500 V
3 = 250 V
4 = 500 V
5 = 400 V to 600 V
Relative susceptibility
levels
1
2
3
4
5
6
7
8
9
6 = 600 V to 800 V
7 = 400 V to 1000 V (est.)
8 = 900 V
9 = 1200 V
Maintenance
1
7-3