TF38 Shoulder Electronics, TF38 Datasheet - Page 4

• Manufacturer Part Number: TF38
• Description: Crystal Resonator Tf38
• Manufacturer: Shoulder Electronics

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2) Shock
3) Leakage
4) Solderability
5) Reflow soldering
6) Lead Strength (DIP)
Temperature cycling test
Conditions: Put the leads of crystal units into solder melted tank for 3 to 5s
Results:
Results:
Conditions: 3 Times free drop from 75cm height to hard wooden board of
Conditions: Put crystal units into a hermetic container and Helium for
Conditions: Next Fig.1 for TF38 families.
Results: Frequency Change: ±10ppm Max.
Conditions: The crystal lead with the 0.9kg(9N)power(keep it for 30s±5s)
Results: Frequency Change: ±10ppm Max.
Results: Leakage: 1x10¯8mbar.l/s Max.
Resistance Change: ±15% or 5kohm Max.
The dipped surface of the leads should be at least 95% covered
Resistance Change: ±15% or 5kohm Max.
thickness more than 30mm
Temperature of solder melted tank is 245℃±5℃
with continuous new solder coating
Resistance Change:±25% or 10kohm Max.
Cycle Time 1-2min (10-55-10Hz)
Direction
Duration
0.5-0.6Mpa, and keep it for 1h; Check the leakage by a Helium
leak detector
2h/each direction
X.Y.Z
Page: 4
SHOULDER ELECTRONICS LIMITED