Tektronix Webcam 070-8030-01 User Manual
1780R-Series Service Manual
6–3
Static-Sensitive Components
This instrument contains electrical components that are susceptible to damage
from static discharge. Static voltages from 1 kV to 30 kV are common in
unprotected environments. Table 6–1 shows the relative static discharge
susceptibility of various semiconductor classes.
from static discharge. Static voltages from 1 kV to 30 kV are common in
unprotected environments. Table 6–1 shows the relative static discharge
susceptibility of various semiconductor classes.
Table 6–1: Static Susceptibility
Relative Susceptibility Levels
Voltage*
1
MOS and CMOS
100 to 500 V
2
ECL
200 to 500 V
3
SCHOTTKY SIGNAL DIODES
250 V
4
SCHOTTKY TTL
500 V
5
HF BIPOLAR TRANSISTORS
400 to 600 V
6
JFETS
600 to 800 V
7
LINEAR
mCIRCUITS
400 to 1000 V est.
8
LOW POWER SCHOTTKY TTL
900 V
9
TTL
1200 V
*
Voltage equivalent for levels (voltage discharged from a 100-pF capacitor through a
resistance of 100
resistance of 100
W).
Observe the following precautions to avoid damage:
1. Minimize handling of static-sensitive components.
2. Transport and store static-sensitive components or assemblies in their
original containers, on a metal rail, or on conductive foam. Label any
package that contains static-sensitive components or assemblies.
package that contains static-sensitive components or assemblies.
3. Discharge the static voltage from your body by wearing a grounding wrist
strap while handling these components. Static-sensitive assemblies or
components should be serviced only at a static-free work station by qualified
personnel.
components should be serviced only at a static-free work station by qualified
personnel.
4. Nothing capable of generating or holding a static charge should be allowed
on the work station surface.
5. Keep component leads shorted together whenever possible.
6. Handle components by the body, never by the leads.