Crystal Units
1904A_RC-8_e
RC-8 / NC-18C
For High Precision Industry
■
Specications
A highly reliable crystal unit with outstanding frequency stability
and covering a broad frequency range.
● Theproductsatisesstricttemperaturecharacteristicsstandards,
isshockresistantandhasexcellentfrequencyreproducibility.
■
Features
mm
15.60 dia max
12.85 dia max
4.80 max
5-0.45+0.03/-0.05 dia
6.3+/-0.5
7.16+/-0.1
2.54+/-0.1
45 deg
Ground lead
#1 X’tal lead
#2 N/C lead
#3 X’tal lead
#4 N/C lead
#5 Ground lead
#2
#4
#1
#5
#3
■
Dimensions
mm
10.10max.
5.00max.
3.55max.
11.45max.
4.88+/-0.20
Glass
Metal
Glass
Metal
8.00min.
2.00min
0.89
13.46max.13.2+/-1
0.43-0.03dia.
+0.05
Pleasespecifythemodelname,frequency,andspecicationnumberwhenyouorderproducts.
Forfurtherquestionsregardingspecications,pleasefeelfreetocontactus.
Item
Model
RC-8
NominalFrequency 5 to 20 MHz
Overtone Order 3rd overtone
OperatingTemperatureRange –40 to +120°C
StorageTemperatureRange –55 to +125°C
Turnoverpoint +70 to +110°C
FrequencyTolerance
(atmiddleofturnoverpoint)
Max. ±3 × 10
–6
Equivalent Series Resistance Max.150Ω
Level of Drive Max.100μW
LoadCapacitance Seriesto32pF
SpecicationsNumber STD-CWB-2
Item
Model
NC-18C
NominalFrequency 10 to 20 MHz
Overtone Order 3rd overtone
OperatingTemperatureRange –40 to +120°C
StorageTemperatureRange –55 to +125°C
Turnoverpoint +70 to +110°C
FrequencyTolerance
(atmiddleofturnoverpoint)
Max. ±3 × 10
–6
Equivalent Series Resistance Max.150Ω
Level of Drive Max.100μW
LoadCapacitance Seriesto32pF
SpecicationsNumber STD-CWB-1
RC-8 NC-18C
Directive 2011/65/EU
Directive (EU) 2015/863
RC-8 NC-18C