Datasheet
4
[4] Environmental and mechanical characteristics
Item No.3 to No.6 shall be tested after following pre conditioning.
Pre conditioning：Test crystal must be leaving in room temperature for 24 h after reflow × 3.
(The company evaluation condition：We evaluate it by the following examination item and examination condition.)
Value *1 *2
No. Item
Δf / f [1 × 10
−6
]
Test Conditions
1 Drop
*3 ± 2
150 g dummy Jig (SE Standard) drop
from 1500 mm height on the Concrete 6
directions 10 times
2 Vibration
*3 ± 2
10 Hz to 55 Hz amplitude 0.75 mm
55 Hz to 500 Hz acceleration 98 m/s
2
10 Hz → 500 Hz → 10 Hz 15 min./cycle
6 h (2 hours , 3 directions)
3 High temperature storage
*3 ± 2
+85 °C × 1 000 h
4 Low temperature storage
*3 ± 2
-40 °C × 1 000 h
5 Temperature cycle
*3 ± 2
-40 °C ↔ +85 °C
30 minutes at each temp. 100 cycle
6 Temperature humidity
storage
*3 ± 2
+85 °C × 85 %RH × 1 000 h
7 Resistance to soldering heat ± 2 For convention reflow soldering furnace
(3 times)
8 Substrate bending No peeling-off at a soldered
part
Bend width reaches 3 mm and hold for
5 s ± 1 s × 1 time Ref. IEC 60068-2-21
9 Shear No peeling-off at a soldered
part
10 N press for 10 s ± 1 s
Ref. IEC 60068-2-21
10 Pull – off No peeling-off at a soldered
part
10 N press for 10 s ± 1 s
Ref. IEC 60068-2-21
11 Solder ability Terminals must be 95 %
covered
With fresh solder.
Dip termination into solder bath at
+235 °C ± 10 °C for 5 s
(Using Rosin Flux)
< Notes >
1. *1 each test done independently.
2. *2 measuring 2 h to 24 h later leaving in room temperature after each test.
3. *3 Item No.1 to No.6 shall be tested after following pre conditioning.
4. Item No.1 to No.11 resistance at before above tests should be less than ±20 % or less than ±10 Ω.
5. Pre conditioning：Test crystal must be leaving in room temperature for 24h after reflow × 3.
Reflow condition (follow to IPC / JEDEC J-STD-020C)
Temperature
[
°
C
]
60
300
250
200
150
100
50
0
ts
60
s
to
180
s
( +150 °C to +200 °C )
Avg. Ramp-up
3
°C / s Max.
Ramp-down
6 °C / s Max.
Time
[
s
]
120 180 240 300 360 420 480 540 600 660 720 780
Ts
min
;
+150
°
C
Ts
max
;
+200
°
C
TL
;
+217
°
C
+255
°
C
tL
60
s
to
150
s
( +217 °C over )
tp ; 20 s to 40 s
TP
;
+260
°
C
Time +25
°
C
to
Peak