3 x 8 Series
3.0 x 8.0mm Watch crystal
REACH and RoHS compliant
Cylinder type through hole watch crystal
Parameters
Frequency
Specification
32.768kHz
Remarks
F_nom
F_tol
Frequency tolerance
Operating temperature range
Storage temperature
Temperature coefficient
Turnover temperature
Load capacitance
±10ppm, ±20ppm, ±50ppm
at 25°C ± 3°C
T_use ‐10°C ~ +60°C, ‐20°C ~ +70°C,‐40°C ~ +85°C
T_stg
K
‐40°C ~ +85°C
‐0.035±0.0086ppm/°C²
25°C ± 5°C
Ti
CL
6pF ~ 12.5pF
30KΩ max
Equivalent series resistance
Motional capacitance
ESR
C1
3.0fF typical
1.8pF typical
60,000
Shunt capacitance
C0
Specification
Quality factor
Q
Drive level
DL
1.0μW max
Frequency aging
Insulation resistance
F_age
IR
±5.0ppm max
500MΩ min
First year
at DC100V ± 15V
Part number generation
Dimensions (unit : mm)
OJ
00003
G
I
H
D
‐PF
RoHS
ACT
Series
Code
Frequency
(KHz)
Frequency
Tolerance
(±ppm)
Operating
Temperature capacitance
Load
Packaging
(Tape &
Reel)
3.0±0.1
Range
(°C)
(CL)
OJ
32.768kHz = 00003
±10 = C
±20 = G
±50 = N
±100 = P
‐10 ~ +60 = B
‐20 ~ +70 = D
‐40 ~ +85 = I
6.0pF = N Loose = L RoHS = ‐pF
7.0pF = M
9.0pF = K
12.5pF = H
Notes:
1. It is important to suffix the above part number with full frequency required to give a completed part
number as illustrated below. Full Example Part Number : OJ00003GIHD‐PF [32.768kHz]
Soldering guide
Frequency vs temperature stability
Lead should be soldered within 10 seconds with a
tip temperature not exceeding 270°C. The device
should be ideally be mounted upright on the PCB.
X‐Y cut : Frequency stability v temperature
10
0
‐10
‐20
‐30
‐40
‐50
‐60
‐70
‐80
‐90
‐100
‐110
‐120
‐130
‐140
‐150
‐160
‐170
‐180
‐190
0.8±0.1
‐40 ‐30 ‐20 ‐10
0
10
20
30
40
50
60
70
80
90
Drawing control: (Internal use only)
Commodity code : 854160 00 00
Issue number : N1
Temperature °C
Date : 01/02/2017
Internal reference : C1b
ACT (A wholly owned Acal BFi Company)
+44 (0) 118 978 8878|sales@act.co.uk|www.act.co.uk
ISO9001 Registered
Specifications subject to change without notification