SO-502 SAW Based Oscillator
Handling Precautions
Although ESD protection circuitry has been designed into the SO-502 proper precautions should be taken when
handling and mounting. VI employs a human body model and a charged-device model (CDM) for ESD
susceptibility testing and design protection evaluation.
ESD Ratings
Model
Minimum
1500 V
1000 V
Conditions
MIL-STD 883, Method 3015
JESD 22-C101
Human Body Model
Charged Device Model
Recommended Solder Reflow Profile
220
183
150
60
60-90
45-60
Time (s)
VI qualification includes aging at various extreme temperatures, shock and vibration, temperature cycling, and IR
reflow simulation. The conditions a device can withstand are well understood and devices can be subjected to
the profile above. This profile shows a ramp up condition to prevent thermal shock, a preheat period in which the
flux is activated, a ramp up to 183°C which is the reflow temperature of Sn/Pb eutectic, and a gradual cool down.
The time above 183°C should not exceed 60 seconds and the peak temperature should be no more than 220°C
for 10 seconds. The SO-502’s are hermetically sealed so an aqueous wash is not an issue.
Vectron International, 267 Lowell Rd, Hudson NH 03051-4916
Tel: 1-88-VECTRON-1
Website: www.vectron.com
7
Rev: 06June05
VECTRON [ Vectron International, Inc ]
