Specifications No.
Messrs.
（
first ・ revised
）
Delivery Specifications
Product No
Item code
Product form
：
Quartz Crystal Unit SSP-T7-F
：
Q-SPT7H032762070BJ
：
32.768kHz ± 20
×
10
-6
/ 7.0 pF
The number of copies
：
1copy
Date of Registrantion
Receipt Columm
Column
：
Note
〈NOTICE〉
1. Advance agreement will be needed before changing any contents of the specification herein.
2. Provided that the information herein is subject to change, only revised pages shall be reissued.
3. When the product described herein includes Regulated Products subject The Wassenaar Arrangement
etc, they may not be exported without authorization form the appropriate governmental authorities.
4. The contents of this specification including all figures and illustrations are proprietary information
(copyright or know-how) of Seiko Instruments Inc. It is strictly prohibited to copy all or part of these
specifications to third parties without permission.
5. In the case that the products described herein are used as part of any devices or equipment which might
influence any one of the human body, human life and property, such as physical exercise equipment,
medical equipment or vehicles, please let us know that.
Dept. of Issue
Dept. of Control
Seiko Instruments Inc.
Quartz Crystal Division
Quality Assurance Section
Sales Section
Network Components Business
1-8, Nakase, Mihamaku, Chiba shi,
Chiba 261-8507 Japan
1/11
Delivery Specifications
1.Scope
These specifications apply to QUARTZ CRYSTAL RESONATORS ( hereinafter
referred to as RESONATORS ) to be manufactured by Seiko Instruments Inc.
( hereinafter referred to as SII ) to
2.Designation
RESONATORS are designated " SSP-T7-F"(32.768kHz ).
3.Shape and dimensions
As per the SSP-T7-F drawing shown on page 5 .
4.Electrical characteristics
Specified on page 2 through 3.
5.Shipment and packaging
5.1 (3,000) pcs are the standard lot size to which the lot number shall be allotted
5.2 The packaging shall conform to the resonator packaging standards.
6.Outgoing inspection
6.1 When mutually agreed, the outgoing inspection shall be conducted as per
the standard on page 4.
6.2 The outgoing inspection slip is not basically affixed to each packaging.
7.Warranty
In the event that any defective RESONATORS or defective lot is found at
incoming inspection at
and that
any defect resulting from failures in process-control at SII after incoming
inspection is found, good RESONATORS shall be supplied to
free of charge as a replacement．
In the event that any trouble or problems rising directly from RESONATORS
occurs, it will be amicably settled between both parties, provided that
warranty shall be done within the score of replacement of good RESONATORS.
8.Amendment or abolition of the specifications
Amendment or abolition of the specifications shall be made upon mutual consent
between
and SII. If any problem arises ,
it shall be amicably settled between both parties.
9.Effectiveness of the specifications
These specifications are effective after receipt of returned copies with your
approved sign.
10.Ohters
RoHS compliant
These products use Pb in high melting temperature type solders exempted by
RoHS directive.
Resin inluding brominated Flame retardant and Antnimony Trioxide (Sb203),
is not used on the product.
2/11
［1½ The
maximum rating
Item
1 Storage temperature range
2 Maximum drive level
Symbol
T_stg
DL max.
Rating
-55∼+125℃
1.0 µW max.
Note
［2½ Recommended
Operating Condition
Item
1 Operating temperature range
2 Drive level
Symbol
T_use
DL
Rating
-40∼+85℃
0.1 µW typ.
Note
［3½ Electrical
-Characteristics
Item
1 Nominal frequency
2 Frequency tolerance
3 Load capacitance
4 Motional resistance
Symbol
f_nom
f_tol
C
L
R
1
Specifications
32.768 kHz
± 20 × 10
-6
7.0 pF
65 kΩ max.
Measurement temperature
：
25±2℃
Conditions
5 Q-value
6 Motional capacitance
7 Shunt capacitance
Q
C
1
C
0
40 × 10
min.
1.9 fF typ.
0.8 pF typ.
3
Measured with ATI 4192A
Impedance analyzer.
OSC LEVEL = 0.1V
calculated with the following
equation：Q=(2π・F½・L
1
)/R
1
8 Turnover temperature
9 Parabolic coefficient
10 Frequency ageing
11 Insulation resistance
Ti
B
f_age
IR
25 ± 5℃
(-3.5±1.0) × 10 /℃
± 5 × 10
-6
/ year
500 MΩ min.
-8
2
Measured with ATI 4192A
Impedance analyzer.
OSC LEVEL = 0.1V
Measure this coefficient at 3 points
of 10℃、25℃、and 40℃ using
C-MOS circuit.
25±3℃、 First year
Measured with ATI 4329A
Insulation Resistance Meter.
Apply DC100V.
3/11
［4½ Environment-proof ・Mechanical
property
No
Item
1 High temperature storage
2
3
Low temperature storage
High temperature and
high humidity storage
Thermal shock resistance
Specifications
△f/f
=±10 × 10
-6
△f/f
=±10 × 10
-6
△f/f
=±10 × 10
-6
Conditions
After storage under 85℃ for 500 hrs,
measure at room temperature.
After storage under -40℃ for 500
hrs, measure at room temperature.
After storage under 60℃±2℃, 90 to
95% RH for 500 hrs, measure at room
temperature.
Measured at room temperature after
20 cycles.
-25℃⇔+80℃ for 30 minutes.
Measure after free drop of the
RESONATOR three times from the
height of 75cm onto a wooden board.
Amplitude 1.5mm and 10∼60Hz with
cycle time 2∼3 minutes in 3 direction
(X,Y,and Z axis)each for 2 hrs.
Measure after 1 time reflow under
reflow profile specified in page 10
*
1
*1
*
1
4
△f/f
=±10 × 10
-6
*
1
5
Mechanical shock resistance
△f/f
=±5 × 10
-6
*
2
6
Vibration resistance
△f/f
=±5 × 10
-6
*
2
7
IR Reflow
△f/f
=±10 × 10
-6
*
1
Note:
1. The adove tests no. 1 to 7 must be conducted independently (not series tests)
2. *1: Measure after 24 hours soak at room temperature .
3. *2: Measure after 2 hours soak at room temperature .
4. R1 is 85kΩ max. after the each above tests.
4/11
［5½ Precautions
(1) Recommended mounting conditions
Reflow profile
As per reflow profile shown in page 10.
Manual soldering
350℃ max. for 4 sec. max.
(2) Cleaning
The crystal resonator may be destroyed by ultrasonic cleaning.
We don't guarantee the quality of the product with that cleaning method because
such conditions as type of the washing machine, power, time,position in the bath,
etc. can not be specified.
Please confirm ultrasonic cleaning is not giving any damage to the product
before use when that cleaning method must be used.
［6½ Outgoing
inspection standard
・The
outgoing inspection shall be conducted as per the following standard .
・The
sampling shall be performed according to the ANSI/ASQCZ1.4-1996 .
No
1
2
3
4
Item
Frequency tolerance
Equivalent series resistance
Outer appearance
Others characteristics
Sampling level
Ⅰ
Ⅰ
Ⅰ
AQL(%)
1.0
1.0
1.5
Periodical quality inspection
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